./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_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_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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_83249515-2c13-4c53-8cd9-957eb9e524e6/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 0c653ee786314239b30d2d467841b501d4e6acc831941b04c816f815e1a3737a --- 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 15:43:47,758 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:43:47,760 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:43:47,773 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:43:47,773 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:43:47,774 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:43:47,775 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:43:47,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:43:47,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:43:47,777 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:43:47,778 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:43:47,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:43:47,779 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:43:47,779 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:43:47,780 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:43:47,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:43:47,781 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:43:47,782 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:43:47,783 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:43:47,784 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:43:47,785 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:43:47,786 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:43:47,787 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:43:47,787 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:43:47,790 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:43:47,790 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:43:47,790 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:43:47,791 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:43:47,791 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:43:47,792 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:43:47,792 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:43:47,792 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:43:47,793 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:43:47,793 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:43:47,794 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:43:47,794 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:43:47,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:43:47,795 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:43:47,795 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:43:47,795 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:43:47,796 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:43:47,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 15:43:47,815 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:43:47,815 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:43:47,816 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:43:47,816 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:43:47,816 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:43:47,816 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:43:47,816 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:43:47,817 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 15:43:47,817 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:43:47,817 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 15:43:47,818 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:43:47,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:43:47,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:43:47,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:43:47,819 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:43:47,820 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:43:47,820 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_83249515-2c13-4c53-8cd9-957eb9e524e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c653ee786314239b30d2d467841b501d4e6acc831941b04c816f815e1a3737a [2022-12-14 15:43:48,003 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:43:48,021 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:43:48,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:43:48,023 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:43:48,024 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:43:48,024 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:50,662 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:43:50,854 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:43:50,855 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:50,868 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/126d9f9d1/61168aace1d64af68f351f52d7bc328f/FLAGcb5ab8631 [2022-12-14 15:43:50,878 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/126d9f9d1/61168aace1d64af68f351f52d7bc328f [2022-12-14 15:43:50,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:43:50,881 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:43:50,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:43:50,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:43:50,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:43:50,885 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:43:50" (1/1) ... [2022-12-14 15:43:50,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d00453 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:50, skipping insertion in model container [2022-12-14 15:43:50,886 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:43:50" (1/1) ... [2022-12-14 15:43:50,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:43:50,925 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:43:51,157 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:43:51,443 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:43:51,448 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:51,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:51,452 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:51,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:51,477 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:43:51,478 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:43:51,484 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:43:51,500 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:43:51,542 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:43:51,543 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:51,544 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:51,546 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:51,547 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:51,552 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:43:51,553 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:43:51,693 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:43:51,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51 WrapperNode [2022-12-14 15:43:51,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:43:51,695 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:43:51,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:43:51,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:43:51,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,716 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,733 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 64 [2022-12-14 15:43:51,733 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:43:51,734 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:43:51,734 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:43:51,734 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:43:51,740 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,743 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,746 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,748 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,749 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,750 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,752 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:43:51,752 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:43:51,752 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:43:51,752 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:43:51,753 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (1/1) ... [2022-12-14 15:43:51,758 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:43:51,767 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:43:51,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:43:51,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:43:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:43:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:43:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:43:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:43:51,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:43:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:43:51,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 15:43:51,903 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:43:51,905 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:43:52,018 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:43:52,063 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:43:52,063 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:43:52,065 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:52 BoogieIcfgContainer [2022-12-14 15:43:52,065 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:43:52,067 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:43:52,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:43:52,069 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:43:52,069 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:43:50" (1/3) ... [2022-12-14 15:43:52,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4c27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:43:52, skipping insertion in model container [2022-12-14 15:43:52,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:51" (2/3) ... [2022-12-14 15:43:52,070 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@cf4c27e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:43:52, skipping insertion in model container [2022-12-14 15:43:52,070 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:52" (3/3) ... [2022-12-14 15:43:52,071 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:52,084 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:43:52,084 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:43:52,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:43:52,119 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;@49ff03e8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:43:52,119 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:43:52,122 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 15:43:52,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-12-14 15:43:52,127 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:43:52,128 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-14 15:43:52,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:43:52,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:43:52,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2142561262, now seen corresponding path program 1 times [2022-12-14 15:43:52,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 15:43:52,139 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1954724471] [2022-12-14 15:43:52,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:43:52,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 15:43:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:43:52,294 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:43:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:43:52,366 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 15:43:52,367 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:43:52,368 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:43:52,370 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:43:52,371 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 15:43:52,375 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:43:52,379 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:43:52,398 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:43:52 BoogieIcfgContainer [2022-12-14 15:43:52,398 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:43:52,398 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:43:52,398 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:43:52,399 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:43:52,399 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:52" (3/4) ... [2022-12-14 15:43:52,402 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 15:43:52,402 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:43:52,403 INFO L158 Benchmark]: Toolchain (without parser) took 1521.84ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.4MB in the beginning and 129.9MB in the end (delta: -33.6MB). Peak memory consumption was 1.5MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,404 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:43:52,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.22ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.4MB in the beginning and 119.1MB in the end (delta: -22.8MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,405 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.69ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 115.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,405 INFO L158 Benchmark]: Boogie Preprocessor took 18.00ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 114.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,406 INFO L158 Benchmark]: RCFGBuilder took 313.19ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 95.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,406 INFO L158 Benchmark]: TraceAbstraction took 331.12ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 129.9MB in the end (delta: -35.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. [2022-12-14 15:43:52,406 INFO L158 Benchmark]: Witness Printer took 3.88ms. Allocated memory is still 167.8MB. Free memory is still 129.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:43:52,409 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 134.2MB. Free memory is still 106.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.22ms. Allocated memory was 134.2MB in the beginning and 167.8MB in the end (delta: 33.6MB). Free memory was 96.4MB in the beginning and 119.1MB in the end (delta: -22.8MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.69ms. Allocated memory is still 167.8MB. Free memory was 119.1MB in the beginning and 115.3MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.00ms. Allocated memory is still 167.8MB. Free memory was 115.3MB in the beginning and 114.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 313.19ms. Allocated memory is still 167.8MB. Free memory was 114.1MB in the beginning and 95.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 331.12ms. Allocated memory is still 167.8MB. Free memory was 94.3MB in the beginning and 129.9MB in the end (delta: -35.6MB). Peak memory consumption was 23.8MB. Max. memory is 16.1GB. * Witness Printer took 3.88ms. Allocated memory is still 167.8MB. Free memory is still 129.9MB. 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: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1550, overapproximation of bitwiseAnd at line 1550. 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); [L1567] 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) [L1567] RET printLine("Calling bad()...") VAL [\old(argc)=2147483648, argc=2147483648, argv={2147483650:2147483649}, argv={2147483650:2147483649}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_predec_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1551] return data; [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: 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 15:43:52,424 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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_83249515-2c13-4c53-8cd9-957eb9e524e6/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 0c653ee786314239b30d2d467841b501d4e6acc831941b04c816f815e1a3737a --- 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 15:43:54,013 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 15:43:54,015 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 15:43:54,028 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 15:43:54,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 15:43:54,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 15:43:54,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 15:43:54,031 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 15:43:54,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 15:43:54,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 15:43:54,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 15:43:54,035 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 15:43:54,035 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 15:43:54,036 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 15:43:54,036 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 15:43:54,037 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 15:43:54,038 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 15:43:54,039 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 15:43:54,040 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 15:43:54,041 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 15:43:54,042 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 15:43:54,043 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 15:43:54,044 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 15:43:54,044 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 15:43:54,047 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 15:43:54,047 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 15:43:54,047 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 15:43:54,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 15:43:54,048 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 15:43:54,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 15:43:54,049 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 15:43:54,049 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 15:43:54,050 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 15:43:54,050 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 15:43:54,051 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 15:43:54,051 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 15:43:54,052 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 15:43:54,052 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 15:43:54,052 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 15:43:54,053 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 15:43:54,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 15:43:54,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 15:43:54,070 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 15:43:54,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 15:43:54,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 15:43:54,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 15:43:54,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 15:43:54,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 15:43:54,071 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 15:43:54,071 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 15:43:54,071 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 15:43:54,072 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 15:43:54,072 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 15:43:54,072 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 15:43:54,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 15:43:54,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 15:43:54,074 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 15:43:54,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 15:43:54,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 15:43:54,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 15:43:54,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:43:54,075 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 15:43:54,079 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 15:43:54,080 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 15:43:54,081 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_83249515-2c13-4c53-8cd9-957eb9e524e6/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0c653ee786314239b30d2d467841b501d4e6acc831941b04c816f815e1a3737a [2022-12-14 15:43:54,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 15:43:54,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 15:43:54,295 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 15:43:54,296 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 15:43:54,296 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 15:43:54,297 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:56,876 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 15:43:57,122 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 15:43:57,123 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:57,140 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/2979d3585/c71eb473f09249d699dc81f4336cca08/FLAG9f7fe4519 [2022-12-14 15:43:57,154 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/data/2979d3585/c71eb473f09249d699dc81f4336cca08 [2022-12-14 15:43:57,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 15:43:57,158 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 15:43:57,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 15:43:57,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 15:43:57,163 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 15:43:57,163 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3eb84248 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57, skipping insertion in model container [2022-12-14 15:43:57,165 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 15:43:57,210 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 15:43:57,451 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:43:57,710 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:43:57,714 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:57,715 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:57,716 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:57,717 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:57,735 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:43:57,735 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:43:57,745 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 15:43:57,758 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 15:43:57,789 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 15:43:57,790 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:57,791 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 15:43:57,792 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:57,799 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 15:43:57,804 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 15:43:57,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 15:43:57,903 INFO L208 MainTranslator]: Completed translation [2022-12-14 15:43:57,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57 WrapperNode [2022-12-14 15:43:57,903 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 15:43:57,904 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 15:43:57,904 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 15:43:57,904 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 15:43:57,909 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,931 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,952 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 63 [2022-12-14 15:43:57,952 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 15:43:57,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 15:43:57,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 15:43:57,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 15:43:57,959 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,959 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,964 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,964 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,974 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,975 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 15:43:57,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 15:43:57,978 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 15:43:57,978 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 15:43:57,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (1/1) ... [2022-12-14 15:43:57,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 15:43:57,995 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 15:43:58,005 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 15:43:58,007 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 15:43:58,039 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 15:43:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 15:43:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 15:43:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 15:43:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 15:43:58,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 15:43:58,040 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 15:43:58,155 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 15:43:58,157 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 15:43:58,272 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 15:43:58,276 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 15:43:58,276 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 15:43:58,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:58 BoogieIcfgContainer [2022-12-14 15:43:58,278 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 15:43:58,279 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 15:43:58,279 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 15:43:58,282 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 15:43:58,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 03:43:57" (1/3) ... [2022-12-14 15:43:58,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594ba3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:43:58, skipping insertion in model container [2022-12-14 15:43:58,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 03:43:57" (2/3) ... [2022-12-14 15:43:58,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@594ba3be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 03:43:58, skipping insertion in model container [2022-12-14 15:43:58,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:58" (3/3) ... [2022-12-14 15:43:58,284 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_42_bad.i [2022-12-14 15:43:58,297 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 15:43:58,298 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 15:43:58,332 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 15:43:58,336 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;@6227bb88, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 15:43:58,337 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 15:43:58,340 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 15:43:58,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 15:43:58,345 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 15:43:58,346 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 15:43:58,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 15:43:58,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 15:43:58,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1259888207, now seen corresponding path program 1 times [2022-12-14 15:43:58,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 15:43:58,360 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [66833174] [2022-12-14 15:43:58,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 15:43:58,360 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 15:43:58,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 15:43:58,361 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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 15:43:58,362 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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 15:43:58,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:43:58,456 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 15:43:58,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 15:43:58,515 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 15:43:58,517 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 15:43:58,518 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 15:43:58,520 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 15:43:58,531 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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 15:43:58,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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 15:43:58,726 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 15:43:58,731 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 15:43:58,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 03:43:58 BoogieIcfgContainer [2022-12-14 15:43:58,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 15:43:58,755 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 15:43:58,755 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 15:43:58,755 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 15:43:58,756 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 03:43:58" (3/4) ... [2022-12-14 15:43:58,757 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 15:43:58,808 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 15:43:58,809 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 15:43:58,810 INFO L158 Benchmark]: Toolchain (without parser) took 1651.48ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.3MB in the beginning and 52.7MB in the end (delta: -10.4MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,810 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 15:43:58,811 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.18ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 39.4MB in the end (delta: 2.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,811 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.35ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 36.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,811 INFO L158 Benchmark]: Boogie Preprocessor took 25.00ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,812 INFO L158 Benchmark]: RCFGBuilder took 299.72ms. Allocated memory is still 67.1MB. Free memory was 34.0MB in the beginning and 35.8MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,813 INFO L158 Benchmark]: TraceAbstraction took 475.18ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 49.5MB in the end (delta: -14.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,813 INFO L158 Benchmark]: Witness Printer took 53.61ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 52.7MB in the end (delta: -3.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 15:43:58,815 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory is still 33.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.18ms. Allocated memory is still 67.1MB. Free memory was 42.1MB in the beginning and 39.4MB in the end (delta: 2.7MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.35ms. Allocated memory is still 67.1MB. Free memory was 39.4MB in the beginning and 36.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.00ms. Allocated memory is still 67.1MB. Free memory was 36.1MB in the beginning and 34.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 299.72ms. Allocated memory is still 67.1MB. Free memory was 34.0MB in the beginning and 35.8MB in the end (delta: -1.7MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 475.18ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 35.1MB in the beginning and 49.5MB in the end (delta: -14.3MB). Peak memory consumption was 13.4MB. Max. memory is 16.1GB. * Witness Printer took 53.61ms. Allocated memory is still 81.8MB. Free memory was 49.0MB in the beginning and 52.7MB in the end (delta: -3.7MB). 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: 1559]: 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] [L1567] 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) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_predec_42_bad() [L1555] int data; [L1556] data = 0 [L1557] CALL, EXPR badSource(data) [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1550] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [\old(data)=0, data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=32767, rand()=0, rand()=0, rand()=65535, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1550] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1551] return data; VAL [\old(data)=0, \result=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1557] RET, EXPR badSource(data) [L1557] data = badSource(data) [L1559] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1559]: 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, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-14 15:43:58,830 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_83249515-2c13-4c53-8cd9-957eb9e524e6/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)