./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 3bb90290aa47bfda330c107095a18933e9ab2bd57af7dd248e8b62632d1e550a --- 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 06:57:20,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:57:20,862 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:57:20,874 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:57:20,874 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:57:20,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:57:20,876 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:57:20,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:57:20,878 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:57:20,878 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:57:20,879 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:57:20,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:57:20,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:57:20,880 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:57:20,881 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:57:20,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:57:20,882 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:57:20,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:57:20,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:57:20,885 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:57:20,886 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:57:20,887 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:57:20,888 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:57:20,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:57:20,890 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:57:20,890 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:57:20,890 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:57:20,891 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:57:20,891 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:57:20,892 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:57:20,892 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:57:20,892 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:57:20,893 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:57:20,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:57:20,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:57:20,894 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:57:20,894 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:57:20,895 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:57:20,895 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:57:20,895 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:57:20,896 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:57:20,896 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 06:57:20,909 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:57:20,910 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:57:20,910 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:57:20,910 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:57:20,910 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:57:20,910 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:57:20,911 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:57:20,911 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:57:20,911 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:57:20,911 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:57:20,911 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:57:20,911 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:57:20,912 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:57:20,912 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:57:20,912 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:57:20,912 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:57:20,912 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:57:20,912 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:57:20,913 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:57:20,913 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:57:20,914 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:57:20,914 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:57:20,914 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:57:20,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:57:20,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:57:20,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:20,914 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:57:20,915 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:57:20,916 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_1fdfe834-aa98-47df-aad6-4d36d21d160d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb90290aa47bfda330c107095a18933e9ab2bd57af7dd248e8b62632d1e550a [2022-12-14 06:57:21,114 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:57:21,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:57:21,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:57:21,134 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:57:21,134 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:57:21,135 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:23,630 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:57:23,873 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:57:23,874 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:23,888 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/ca30e35c7/175287a6f60245b1b06397a4319060ca/FLAG6d2468c5b [2022-12-14 06:57:23,902 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/ca30e35c7/175287a6f60245b1b06397a4319060ca [2022-12-14 06:57:23,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:57:23,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:57:23,905 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:23,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:57:23,908 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:57:23,909 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:23" (1/1) ... [2022-12-14 06:57:23,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@623fc246 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:23, skipping insertion in model container [2022-12-14 06:57:23,910 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:23" (1/1) ... [2022-12-14 06:57:23,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:57:23,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:57:24,179 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:57:24,457 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:24,462 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:24,463 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:24,465 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:24,466 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:24,487 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:57:24,490 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:24,498 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:57:24,513 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:57:24,546 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:24,547 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:24,548 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:24,550 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:24,550 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:24,554 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:57:24,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:24,659 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:57:24,659 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24 WrapperNode [2022-12-14 06:57:24,659 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:24,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:24,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:57:24,660 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:57:24,666 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,681 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,697 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2022-12-14 06:57:24,698 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:24,698 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:57:24,698 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:57:24,698 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:57:24,706 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,706 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,708 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,713 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,714 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:57:24,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:57:24,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:57:24,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:57:24,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (1/1) ... [2022-12-14 06:57:24,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:24,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:24,742 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:57:24,744 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:57:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:57:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:57:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:57:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:57:24,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:57:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:57:24,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:57:24,879 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:57:24,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:57:24,997 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:57:25,066 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:57:25,066 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:57:25,068 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:25 BoogieIcfgContainer [2022-12-14 06:57:25,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:57:25,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:57:25,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:57:25,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:57:25,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:57:23" (1/3) ... [2022-12-14 06:57:25,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7dbc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:25, skipping insertion in model container [2022-12-14 06:57:25,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:24" (2/3) ... [2022-12-14 06:57:25,075 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a7dbc5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:25, skipping insertion in model container [2022-12-14 06:57:25,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:25" (3/3) ... [2022-12-14 06:57:25,076 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:25,095 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:57:25,095 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:57:25,144 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:57:25,148 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;@23d50e55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:57:25,149 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:57:25,151 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 06:57:25,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 06:57:25,157 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:25,157 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 06:57:25,157 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:57:25,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:25,161 INFO L85 PathProgramCache]: Analyzing trace with hash -2083453812, now seen corresponding path program 1 times [2022-12-14 06:57:25,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:57:25,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233615598] [2022-12-14 06:57:25,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:25,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:57:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:57:25,324 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:57:25,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:57:25,387 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:57:25,389 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:57:25,390 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:57:25,392 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:57:25,393 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:57:25,397 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:57:25,401 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:57:25,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:57:25 BoogieIcfgContainer [2022-12-14 06:57:25,422 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:57:25,422 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:57:25,422 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:57:25,423 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:57:25,423 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:25" (3/4) ... [2022-12-14 06:57:25,427 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:57:25,427 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:57:25,428 INFO L158 Benchmark]: Toolchain (without parser) took 1523.04ms. Allocated memory is still 132.1MB. Free memory was 93.0MB in the beginning and 80.8MB in the end (delta: 12.2MB). Peak memory consumption was 14.0MB. Max. memory is 16.1GB. [2022-12-14 06:57:25,428 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 132.1MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:57:25,429 INFO L158 Benchmark]: CACSL2BoogieTranslator took 753.87ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:25,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.78ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 73.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:25,430 INFO L158 Benchmark]: Boogie Preprocessor took 19.54ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 72.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:25,431 INFO L158 Benchmark]: RCFGBuilder took 350.60ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 53.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 06:57:25,431 INFO L158 Benchmark]: TraceAbstraction took 351.08ms. Allocated memory is still 132.1MB. Free memory was 52.1MB in the beginning and 80.8MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:57:25,431 INFO L158 Benchmark]: Witness Printer took 4.55ms. Allocated memory is still 132.1MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:57:25,434 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 132.1MB. Free memory is still 108.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 753.87ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 77.2MB in the end (delta: 15.5MB). Peak memory consumption was 49.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.78ms. Allocated memory is still 132.1MB. Free memory was 77.2MB in the beginning and 73.9MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.54ms. Allocated memory is still 132.1MB. Free memory was 73.9MB in the beginning and 72.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 350.60ms. Allocated memory is still 132.1MB. Free memory was 72.5MB in the beginning and 53.0MB in the end (delta: 19.5MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 351.08ms. Allocated memory is still 132.1MB. Free memory was 52.1MB in the beginning and 80.8MB in the end (delta: -28.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.55ms. Allocated memory is still 132.1MB. Free memory is still 80.8MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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); [L1560] 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) [L1560] RET printLine("Calling bad()...") VAL [\old(argc)=2147516417, argc=2147516417, argv={2147516419:2147516418}, argv={2147516419:2147516418}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1561] CALL CWE191_Integer_Underflow__int_rand_postdec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_rand_postdec_65b_badSink; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CALL funcPtr(data) [L1568] data-- VAL [\old(data)=-2147483648, 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: 1568]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:57:25,450 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 3bb90290aa47bfda330c107095a18933e9ab2bd57af7dd248e8b62632d1e550a --- 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 06:57:27,004 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:57:27,006 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:57:27,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:57:27,019 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:57:27,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:57:27,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:57:27,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:57:27,023 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:57:27,023 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:57:27,024 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:57:27,025 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:57:27,025 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:57:27,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:57:27,026 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:57:27,027 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:57:27,028 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:57:27,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:57:27,029 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:57:27,030 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:57:27,031 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:57:27,032 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:57:27,033 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:57:27,033 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:57:27,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:57:27,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:57:27,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:57:27,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:57:27,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:57:27,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:57:27,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:57:27,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:57:27,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:57:27,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:57:27,045 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:57:27,045 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:57:27,046 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:57:27,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:57:27,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:57:27,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:57:27,049 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:57:27,050 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 06:57:27,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:57:27,069 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:57:27,069 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:57:27,069 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:57:27,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:57:27,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:57:27,070 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:57:27,070 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:57:27,070 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:57:27,070 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:57:27,070 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:57:27,070 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:57:27,071 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:57:27,071 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:57:27,072 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:57:27,072 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:27,073 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:57:27,073 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:57:27,074 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:57:27,074 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:57:27,074 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_1fdfe834-aa98-47df-aad6-4d36d21d160d/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3bb90290aa47bfda330c107095a18933e9ab2bd57af7dd248e8b62632d1e550a [2022-12-14 06:57:27,270 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:57:27,287 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:57:27,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:57:27,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:57:27,290 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:57:27,290 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:29,854 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:57:30,131 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:57:30,132 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:30,150 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/e0a13a158/2e5cb8e719974fe7b4359a4058b2383b/FLAG222c89ad1 [2022-12-14 06:57:30,411 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/data/e0a13a158/2e5cb8e719974fe7b4359a4058b2383b [2022-12-14 06:57:30,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:57:30,414 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:57:30,415 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:30,415 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:57:30,418 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:57:30,418 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:30" (1/1) ... [2022-12-14 06:57:30,419 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50fe0e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:30, skipping insertion in model container [2022-12-14 06:57:30,419 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:57:30" (1/1) ... [2022-12-14 06:57:30,424 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:57:30,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:57:30,720 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:57:30,994 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:30,998 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:31,000 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:31,001 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:31,002 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:31,020 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:57:31,023 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:31,034 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:57:31,047 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:57:31,080 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:57:31,081 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:31,082 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:57:31,083 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:31,084 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:57:31,087 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:57:31,088 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:57:31,164 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:57:31,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31 WrapperNode [2022-12-14 06:57:31,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:57:31,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:31,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:57:31,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:57:31,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,202 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 63 [2022-12-14 06:57:31,202 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:57:31,203 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:57:31,203 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:57:31,203 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:57:31,209 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,209 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,211 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,218 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,220 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,221 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,223 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:57:31,224 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:57:31,224 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:57:31,224 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:57:31,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (1/1) ... [2022-12-14 06:57:31,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:57:31,246 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:57:31,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:57:31,261 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:57:31,291 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:57:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:57:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:57:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:57:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:57:31,292 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:57:31,292 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:57:31,414 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:57:31,416 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:57:31,537 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:57:31,542 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:57:31,542 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:57:31,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:31 BoogieIcfgContainer [2022-12-14 06:57:31,544 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:57:31,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:57:31,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:57:31,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:57:31,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:57:30" (1/3) ... [2022-12-14 06:57:31,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2912c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:31, skipping insertion in model container [2022-12-14 06:57:31,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:57:31" (2/3) ... [2022-12-14 06:57:31,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e2912c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:57:31, skipping insertion in model container [2022-12-14 06:57:31,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:31" (3/3) ... [2022-12-14 06:57:31,552 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_65_bad.i [2022-12-14 06:57:31,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:57:31,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:57:31,614 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:57:31,619 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;@236f0951, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:57:31,620 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:57:31,623 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 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 06:57:31,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:57:31,628 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:57:31,629 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:57:31,629 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:57:31,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:57:31,633 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-12-14 06:57:31,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:57:31,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [18802349] [2022-12-14 06:57:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:57:31,644 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 06:57:31,644 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:57:31,646 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 06:57:31,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 06:57:31,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:57:31,765 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:57:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:57:31,821 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:57:31,822 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:57:31,823 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:57:31,824 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:57:31,839 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 06:57:32,025 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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 06:57:32,030 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:57:32,037 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:57:32,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:57:32 BoogieIcfgContainer [2022-12-14 06:57:32,074 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:57:32,075 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:57:32,075 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:57:32,075 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:57:32,076 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:57:31" (3/4) ... [2022-12-14 06:57:32,079 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:57:32,148 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:57:32,148 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:57:32,149 INFO L158 Benchmark]: Toolchain (without parser) took 1735.21ms. Allocated memory is still 73.4MB. Free memory was 48.5MB in the beginning and 34.1MB in the end (delta: 14.4MB). Peak memory consumption was 15.6MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,150 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:57:32,150 INFO L158 Benchmark]: CACSL2BoogieTranslator took 749.78ms. Allocated memory is still 73.4MB. Free memory was 48.3MB in the beginning and 34.9MB in the end (delta: 13.4MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,151 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.37ms. Allocated memory is still 73.4MB. Free memory was 34.9MB in the beginning and 31.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,152 INFO L158 Benchmark]: Boogie Preprocessor took 20.48ms. Allocated memory is still 73.4MB. Free memory was 31.8MB in the beginning and 29.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,152 INFO L158 Benchmark]: RCFGBuilder took 320.12ms. Allocated memory is still 73.4MB. Free memory was 29.7MB in the beginning and 34.7MB in the end (delta: -5.0MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,153 INFO L158 Benchmark]: TraceAbstraction took 527.76ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 36.6MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:57:32,153 INFO L158 Benchmark]: Witness Printer took 73.75ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.1MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:57:32,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 56.6MB. Free memory is still 35.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 749.78ms. Allocated memory is still 73.4MB. Free memory was 48.3MB in the beginning and 34.9MB in the end (delta: 13.4MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.37ms. Allocated memory is still 73.4MB. Free memory was 34.9MB in the beginning and 31.8MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.48ms. Allocated memory is still 73.4MB. Free memory was 31.8MB in the beginning and 29.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 320.12ms. Allocated memory is still 73.4MB. Free memory was 29.7MB in the beginning and 34.7MB in the end (delta: -5.0MB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * TraceAbstraction took 527.76ms. Allocated memory is still 73.4MB. Free memory was 34.0MB in the beginning and 36.6MB in the end (delta: -2.7MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 73.75ms. Allocated memory is still 73.4MB. Free memory was 36.6MB in the beginning and 34.1MB 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: 1568]: 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] [L1560] 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) [L1560] 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] [L1561] CALL CWE191_Integer_Underflow__int_rand_postdec_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_rand_postdec_65b_badSink; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [={-1:0}, 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()=2147483647, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CALL funcPtr(data) [L1568] data-- VAL [\old(data)=-2147483648, 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: 1568]: 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, 23 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=23occurred 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 06:57:32,172 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1fdfe834-aa98-47df-aad6-4d36d21d160d/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)