./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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_ea91fd3c-09dd-4e07-9466-354d47018eec/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 cc6648f99be7028e29dc3bc74f4678242c970f35dddaff957bbd080ea9cfad11 --- 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 06:56:12,645 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:56:12,647 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:56:12,662 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:56:12,662 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:56:12,663 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:56:12,664 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:56:12,665 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:56:12,666 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:56:12,666 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:56:12,667 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:56:12,668 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:56:12,668 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:56:12,669 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:56:12,670 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:56:12,670 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:56:12,671 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:56:12,672 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:56:12,673 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:56:12,674 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:56:12,675 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:56:12,676 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:56:12,676 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:56:12,677 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:56:12,679 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:56:12,679 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:56:12,679 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:56:12,680 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:56:12,680 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:56:12,681 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:56:12,681 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:56:12,682 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:56:12,682 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:56:12,683 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:56:12,683 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:56:12,684 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:56:12,684 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:56:12,685 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:56:12,685 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:56:12,685 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:56:12,686 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:56:12,686 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 06:56:12,714 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:56:12,714 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:56:12,714 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:56:12,714 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:56:12,715 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:56:12,715 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:56:12,715 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:56:12,719 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:56:12,719 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:56:12,719 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:56:12,719 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:56:12,720 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:56:12,720 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:56:12,720 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:56:12,720 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:56:12,720 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:56:12,720 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:56:12,721 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:56:12,721 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:56:12,721 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:56:12,722 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:56:12,723 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:56:12,723 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:56:12,723 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:56:12,723 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:56:12,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:56:12,724 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:56:12,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:56:12,725 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:56:12,725 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_ea91fd3c-09dd-4e07-9466-354d47018eec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6648f99be7028e29dc3bc74f4678242c970f35dddaff957bbd080ea9cfad11 [2022-12-14 06:56:12,923 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:56:12,943 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:56:12,945 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:56:12,946 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:56:12,946 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:56:12,947 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:15,400 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:56:15,627 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:56:15,627 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:15,640 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/b2d8cd46d/2336d6779a7543daa6db181fa122347d/FLAGd7bc51c91 [2022-12-14 06:56:15,949 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/b2d8cd46d/2336d6779a7543daa6db181fa122347d [2022-12-14 06:56:15,951 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:56:15,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:56:15,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:56:15,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:56:15,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:56:15,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:56:15" (1/1) ... [2022-12-14 06:56:15,956 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a334ef1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:15, skipping insertion in model container [2022-12-14 06:56:15,956 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:56:15" (1/1) ... [2022-12-14 06:56:15,961 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:56:15,998 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:56:16,197 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:56:16,525 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:56:16,530 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:16,532 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:16,533 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:16,534 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:16,560 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:56:16,563 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:56:16,571 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:56:16,590 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:56:16,630 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:56:16,632 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:16,633 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:16,635 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:16,636 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:16,641 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:56:16,642 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:56:16,778 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:56:16,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16 WrapperNode [2022-12-14 06:56:16,778 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:56:16,779 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:56:16,779 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:56:16,779 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:56:16,784 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,799 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,825 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2022-12-14 06:56:16,825 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:56:16,826 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:56:16,826 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:56:16,826 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:56:16,834 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,837 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,837 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,843 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,844 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,846 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,847 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:56:16,848 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:56:16,848 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:56:16,849 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:56:16,849 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (1/1) ... [2022-12-14 06:56:16,856 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:56:16,868 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:56:16,880 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:56:16,882 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:56:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:56:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:56:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:56:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:56:16,914 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:56:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:56:16,914 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:56:17,019 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:56:17,021 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:56:17,125 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:56:17,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:56:17,188 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:56:17,190 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:17 BoogieIcfgContainer [2022-12-14 06:56:17,190 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:56:17,193 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:56:17,193 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:56:17,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:56:17,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:56:15" (1/3) ... [2022-12-14 06:56:17,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e164d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:56:17, skipping insertion in model container [2022-12-14 06:56:17,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:16" (2/3) ... [2022-12-14 06:56:17,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64e164d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:56:17, skipping insertion in model container [2022-12-14 06:56:17,197 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:17" (3/3) ... [2022-12-14 06:56:17,199 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:17,217 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:56:17,218 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:56:17,251 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:56:17,256 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;@7b5aadb5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:56:17,256 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:56:17,260 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) internal successors, (11), 10 states have internal predecessors, (11), 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 06:56:17,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:56:17,268 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:17,268 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:17,269 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:56:17,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:17,275 INFO L85 PathProgramCache]: Analyzing trace with hash -760518581, now seen corresponding path program 1 times [2022-12-14 06:56:17,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:56:17,285 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441315558] [2022-12-14 06:56:17,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:17,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:56:17,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:56:17,441 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:56:17,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:56:17,505 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:56:17,507 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:56:17,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:56:17,510 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:56:17,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:56:17,515 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:56:17,519 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:56:17,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:56:17 BoogieIcfgContainer [2022-12-14 06:56:17,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:56:17,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:56:17,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:56:17,540 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:56:17,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:17" (3/4) ... [2022-12-14 06:56:17,543 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:56:17,543 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:56:17,544 INFO L158 Benchmark]: Toolchain (without parser) took 1592.04ms. Allocated memory is still 146.8MB. Free memory was 112.2MB in the beginning and 74.1MB in the end (delta: 38.1MB). Peak memory consumption was 40.4MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,545 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:56:17,545 INFO L158 Benchmark]: CACSL2BoogieTranslator took 825.80ms. Allocated memory is still 146.8MB. Free memory was 112.2MB in the beginning and 49.5MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,546 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.51ms. Allocated memory is still 146.8MB. Free memory was 49.5MB in the beginning and 116.6MB in the end (delta: -67.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,546 INFO L158 Benchmark]: Boogie Preprocessor took 21.67ms. Allocated memory is still 146.8MB. Free memory was 116.6MB in the beginning and 114.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,547 INFO L158 Benchmark]: RCFGBuilder took 342.12ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 95.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,547 INFO L158 Benchmark]: TraceAbstraction took 347.11ms. Allocated memory is still 146.8MB. Free memory was 95.0MB in the beginning and 74.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 06:56:17,547 INFO L158 Benchmark]: Witness Printer took 3.24ms. Allocated memory is still 146.8MB. Free memory is still 74.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:56:17,550 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 146.8MB. Free memory is still 114.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 825.80ms. Allocated memory is still 146.8MB. Free memory was 112.2MB in the beginning and 49.5MB in the end (delta: 62.7MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.51ms. Allocated memory is still 146.8MB. Free memory was 49.5MB in the beginning and 116.6MB in the end (delta: -67.0MB). Peak memory consumption was 11.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.67ms. Allocated memory is still 146.8MB. Free memory was 116.6MB in the beginning and 114.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 342.12ms. Allocated memory is still 146.8MB. Free memory was 114.7MB in the beginning and 95.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 347.11ms. Allocated memory is still 146.8MB. Free memory was 95.0MB in the beginning and 74.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 3.24ms. Allocated memory is still 146.8MB. Free memory is still 74.1MB. 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: 1569]: 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)=2147483649, argc=2147483649, argv={2147483651:2147483650}, argv={2147483651:2147483650}, 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_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_rand_multiply_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) [L1567] COND TRUE data < 0 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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, 14 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=14occurred 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, 7 NumberOfCodeBlocks, 7 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 06:56:17,564 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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_ea91fd3c-09dd-4e07-9466-354d47018eec/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 cc6648f99be7028e29dc3bc74f4678242c970f35dddaff957bbd080ea9cfad11 --- 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 06:56:19,234 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:56:19,236 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:56:19,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:56:19,253 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:56:19,254 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:56:19,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:56:19,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:56:19,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:56:19,259 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:56:19,260 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:56:19,261 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:56:19,262 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:56:19,263 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:56:19,264 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:56:19,265 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:56:19,266 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:56:19,266 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:56:19,268 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:56:19,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:56:19,271 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:56:19,272 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:56:19,273 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:56:19,274 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:56:19,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:56:19,278 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:56:19,278 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:56:19,279 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:56:19,280 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:56:19,281 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:56:19,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:56:19,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:56:19,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:56:19,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:56:19,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:56:19,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:56:19,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:56:19,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:56:19,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:56:19,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:56:19,286 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:56:19,287 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 06:56:19,309 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:56:19,309 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:56:19,310 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:56:19,310 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:56:19,310 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:56:19,310 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:56:19,311 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:56:19,311 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:56:19,311 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:56:19,311 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:56:19,311 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:56:19,311 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:56:19,312 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:56:19,312 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:56:19,312 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:56:19,313 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:56:19,314 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:56:19,314 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:56:19,314 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:56:19,314 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:56:19,314 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:56:19,314 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:56:19,315 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:56:19,315 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:56:19,315 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:56:19,315 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:56:19,315 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:56:19,315 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:56:19,316 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:56:19,316 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:56:19,316 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:56:19,316 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_ea91fd3c-09dd-4e07-9466-354d47018eec/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cc6648f99be7028e29dc3bc74f4678242c970f35dddaff957bbd080ea9cfad11 [2022-12-14 06:56:19,525 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:56:19,541 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:56:19,543 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:56:19,544 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:56:19,544 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:56:19,545 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:22,156 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:56:22,387 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:56:22,387 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:22,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/498c947c7/5c3762c3ec414a658ea5680f505061a1/FLAG78ee581ad [2022-12-14 06:56:22,413 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/data/498c947c7/5c3762c3ec414a658ea5680f505061a1 [2022-12-14 06:56:22,415 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:56:22,416 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:56:22,416 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:56:22,416 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:56:22,419 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:56:22,419 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:56:22" (1/1) ... [2022-12-14 06:56:22,420 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e46af51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:22, skipping insertion in model container [2022-12-14 06:56:22,420 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:56:22" (1/1) ... [2022-12-14 06:56:22,426 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:56:22,457 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:56:22,683 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:56:23,003 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:56:23,007 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:23,009 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:23,011 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:23,012 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:23,034 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:56:23,038 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:56:23,051 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:56:23,069 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:56:23,116 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:56:23,117 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:23,118 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:56:23,119 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:23,120 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:56:23,123 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:56:23,124 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:56:23,209 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:56:23,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23 WrapperNode [2022-12-14 06:56:23,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:56:23,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:56:23,211 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:56:23,211 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:56:23,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,231 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,247 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 61 [2022-12-14 06:56:23,247 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:56:23,247 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:56:23,247 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:56:23,247 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:56:23,254 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,254 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,256 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,256 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,261 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,263 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,264 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,268 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:56:23,268 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:56:23,268 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:56:23,268 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:56:23,269 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (1/1) ... [2022-12-14 06:56:23,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:56:23,283 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:56:23,292 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:56:23,295 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:56:23,317 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:56:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:56:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:56:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:56:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:56:23,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:56:23,318 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:56:23,432 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:56:23,433 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:56:23,542 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:56:23,546 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:56:23,547 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:56:23,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:23 BoogieIcfgContainer [2022-12-14 06:56:23,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:56:23,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:56:23,550 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:56:23,552 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:56:23,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:56:22" (1/3) ... [2022-12-14 06:56:23,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8c3d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:56:23, skipping insertion in model container [2022-12-14 06:56:23,553 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:56:23" (2/3) ... [2022-12-14 06:56:23,553 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d8c3d6b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:56:23, skipping insertion in model container [2022-12-14 06:56:23,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:23" (3/3) ... [2022-12-14 06:56:23,555 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_multiply_65_bad.i [2022-12-14 06:56:23,569 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:56:23,569 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:56:23,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:56:23,609 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;@419aef19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:56:23,609 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:56:23,612 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 20 states have internal predecessors, (23), 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 06:56:23,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 06:56:23,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:56:23,618 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:56:23,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:56:23,623 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:56:23,623 INFO L85 PathProgramCache]: Analyzing trace with hash 84697761, now seen corresponding path program 1 times [2022-12-14 06:56:23,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:56:23,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1301183743] [2022-12-14 06:56:23,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:56:23,633 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 06:56:23,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:56:23,634 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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 06:56:23,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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 06:56:23,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:56:23,730 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:56:23,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:56:23,783 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:56:23,784 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:56:23,785 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:56:23,786 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:56:23,798 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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 06:56:23,987 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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 06:56:23,991 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:56:23,995 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:56:24,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:56:24 BoogieIcfgContainer [2022-12-14 06:56:24,012 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:56:24,012 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:56:24,012 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:56:24,013 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:56:24,013 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:56:23" (3/4) ... [2022-12-14 06:56:24,014 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:56:24,049 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:56:24,049 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:56:24,050 INFO L158 Benchmark]: Toolchain (without parser) took 1634.57ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 70.7MB in the beginning and 82.1MB in the end (delta: -11.3MB). Peak memory consumption was 35.4MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,050 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:56:24,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 793.86ms. Allocated memory is still 92.3MB. Free memory was 70.4MB in the beginning and 51.8MB in the end (delta: 18.6MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,051 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.30ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 48.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,051 INFO L158 Benchmark]: Boogie Preprocessor took 20.32ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,052 INFO L158 Benchmark]: RCFGBuilder took 279.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 77.3MB in the end (delta: -31.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,052 INFO L158 Benchmark]: TraceAbstraction took 462.11ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 59.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,052 INFO L158 Benchmark]: Witness Printer took 37.01ms. Allocated memory is still 111.1MB. Free memory was 59.9MB in the beginning and 82.1MB in the end (delta: -22.2MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2022-12-14 06:56:24,061 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 54.5MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 793.86ms. Allocated memory is still 92.3MB. Free memory was 70.4MB in the beginning and 51.8MB in the end (delta: 18.6MB). Peak memory consumption was 31.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.30ms. Allocated memory is still 92.3MB. Free memory was 51.8MB in the beginning and 48.4MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.32ms. Allocated memory is still 92.3MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 279.87ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 77.3MB in the end (delta: -31.0MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. * TraceAbstraction took 462.11ms. Allocated memory is still 111.1MB. Free memory was 76.7MB in the beginning and 59.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 37.01ms. Allocated memory is still 111.1MB. Free memory was 59.9MB in the beginning and 82.1MB in the end (delta: -22.2MB). Peak memory consumption was 6.3MB. 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: 1569]: 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_multiply_65_bad() [L1551] int data; [L1552] void (*funcPtr) (int) = CWE191_Integer_Underflow__int_rand_multiply_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()=32767, rand()=32766, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483647] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CALL funcPtr(data) [L1567] COND TRUE data < 0 VAL [\old(data)=-2147483647, data=-2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] data * 2 VAL [\old(data)=-2147483647, data=-2147483647, 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: 1569]: 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, 24 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=24occurred 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 06:56:24,078 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ea91fd3c-09dd-4e07-9466-354d47018eec/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)