./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a 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_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:32:16,461 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:32:16,464 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:32:16,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:32:16,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:32:16,512 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:32:16,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:32:16,518 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:32:16,521 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:32:16,527 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:32:16,529 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:32:16,531 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:32:16,532 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:32:16,535 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:32:16,536 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:32:16,541 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:32:16,542 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:32:16,543 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:32:16,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:32:16,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:32:16,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:32:16,551 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:32:16,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:32:16,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:32:16,568 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:32:16,568 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:32:16,569 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:32:16,570 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:32:16,570 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:32:16,571 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:32:16,571 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:32:16,572 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:32:16,573 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:32:16,573 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:32:16,574 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:32:16,575 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:32:16,575 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:32:16,576 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:32:16,576 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:32:16,577 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:32:16,578 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:32:16,581 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:32:16,623 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:32:16,623 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:32:16,624 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:32:16,624 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:32:16,625 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:32:16,625 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:32:16,625 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:32:16,626 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:32:16,626 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:32:16,626 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:32:16,627 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:32:16,627 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:32:16,628 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:32:16,628 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:32:16,628 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:32:16,628 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:32:16,629 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:32:16,629 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:32:16,629 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:32:16,630 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:32:16,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:32:16,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:32:16,630 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:32:16,631 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:32:16,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:32:16,632 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:32:16,632 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:16,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:32:16,633 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:32:16,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:32:16,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:32:16,633 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:32:16,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:32:16,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:32:16,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:32:16,634 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_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb [2022-11-25 22:32:16,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:32:16,931 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:32:16,934 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:32:16,935 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:32:16,935 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:32:16,936 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:20,075 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:32:20,476 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:32:20,476 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:20,501 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/27f864794/debc916484c34b588b623d90c858f6e1/FLAGec4ab93f3 [2022-11-25 22:32:20,525 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/27f864794/debc916484c34b588b623d90c858f6e1 [2022-11-25 22:32:20,528 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:32:20,530 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:32:20,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:20,534 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:32:20,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:32:20,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:20" (1/1) ... [2022-11-25 22:32:20,540 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@689be9a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:20, skipping insertion in model container [2022-11-25 22:32:20,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:20" (1/1) ... [2022-11-25 22:32:20,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:32:20,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:32:20,996 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:32:21,502 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:32:21,508 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:21,510 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:21,512 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:21,513 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:21,545 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:32:21,546 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:21,557 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:32:21,592 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:32:21,669 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:32:21,671 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:21,672 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:21,675 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:21,675 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:21,681 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:32:21,682 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:21,789 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:32:21,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21 WrapperNode [2022-11-25 22:32:21,789 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:21,790 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:21,791 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:32:21,791 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:32:21,799 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,839 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,877 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-25 22:32:21,877 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:21,878 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:32:21,878 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:32:21,878 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:32:21,887 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,887 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,890 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,891 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,899 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,901 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,902 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,903 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:32:21,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:32:21,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:32:21,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:32:21,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (1/1) ... [2022-11-25 22:32:21,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:21,954 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:21,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:32:21,974 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:32:22,001 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:32:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:32:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:32:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:32:22,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:32:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:32:22,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:32:22,139 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:32:22,141 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:22,348 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:22,617 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:22,617 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:32:22,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:22 BoogieIcfgContainer [2022-11-25 22:32:22,620 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:22,622 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:22,622 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:22,625 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:22,626 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:32:20" (1/3) ... [2022-11-25 22:32:22,626 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a305ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:22, skipping insertion in model container [2022-11-25 22:32:22,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:21" (2/3) ... [2022-11-25 22:32:22,627 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a305ff1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:22, skipping insertion in model container [2022-11-25 22:32:22,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:22" (3/3) ... [2022-11-25 22:32:22,628 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:22,651 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:22,651 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:32:22,712 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:22,720 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;@247e5187, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:22,720 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:32:22,724 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) [2022-11-25 22:32:22,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-25 22:32:22,732 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:22,733 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:22,734 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:32:22,742 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:22,742 INFO L85 PathProgramCache]: Analyzing trace with hash -703198583, now seen corresponding path program 1 times [2022-11-25 22:32:22,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:32:22,754 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173957164] [2022-11-25 22:32:22,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:22,755 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:32:23,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:23,048 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:32:23,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:23,156 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:32:23,158 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:32:23,160 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:32:23,162 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:32:23,163 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:32:23,167 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 22:32:23,172 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:32:23,197 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:32:23 BoogieIcfgContainer [2022-11-25 22:32:23,197 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:32:23,198 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:32:23,198 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:32:23,198 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:32:23,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:22" (3/4) ... [2022-11-25 22:32:23,202 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:32:23,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:32:23,204 INFO L158 Benchmark]: Toolchain (without parser) took 2673.39ms. Allocated memory is still 172.0MB. Free memory was 137.2MB in the beginning and 109.1MB in the end (delta: 28.1MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,204 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 89.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:32:23,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1256.50ms. Allocated memory is still 172.0MB. Free memory was 137.2MB in the beginning and 77.2MB in the end (delta: 60.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.15ms. Allocated memory is still 172.0MB. Free memory was 76.3MB in the beginning and 73.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,206 INFO L158 Benchmark]: Boogie Preprocessor took 28.47ms. Allocated memory is still 172.0MB. Free memory was 73.4MB in the beginning and 72.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,207 INFO L158 Benchmark]: RCFGBuilder took 712.87ms. Allocated memory is still 172.0MB. Free memory was 72.1MB in the beginning and 132.2MB in the end (delta: -60.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,207 INFO L158 Benchmark]: TraceAbstraction took 575.24ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 110.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,208 INFO L158 Benchmark]: Witness Printer took 4.93ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:23,211 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 125.8MB. Free memory was 89.9MB in the beginning and 89.8MB in the end (delta: 25.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1256.50ms. Allocated memory is still 172.0MB. Free memory was 137.2MB in the beginning and 77.2MB in the end (delta: 60.0MB). Peak memory consumption was 60.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.15ms. Allocated memory is still 172.0MB. Free memory was 76.3MB in the beginning and 73.4MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.47ms. Allocated memory is still 172.0MB. Free memory was 73.4MB in the beginning and 72.1MB in the end (delta: 1.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 712.87ms. Allocated memory is still 172.0MB. Free memory was 72.1MB in the beginning and 132.2MB in the end (delta: -60.0MB). Peak memory consumption was 17.4MB. Max. memory is 16.1GB. * TraceAbstraction took 575.24ms. Allocated memory is still 172.0MB. Free memory was 131.1MB in the beginning and 110.1MB in the end (delta: 21.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 4.93ms. Allocated memory is still 172.0MB. Free memory was 110.1MB in the beginning and 109.1MB in the end (delta: 1.1MB). 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 - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1556, overapproximation of bitwiseAnd at line 1556. 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); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 0; [L1570] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1570] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_04_bad() [L1552] int data; [L1553] data = 0 [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(STATIC_CONST_TRUE) [L1561] data-- VAL [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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1561]: 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: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.2s 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 [2022-11-25 22:32:23,235 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:32:25,705 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:32:25,707 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:32:25,748 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:32:25,748 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:32:25,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:32:25,754 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:32:25,758 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:32:25,760 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:32:25,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:32:25,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:32:25,770 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:32:25,770 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:32:25,773 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:32:25,774 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:32:25,781 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:32:25,782 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:32:25,783 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:32:25,785 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:32:25,792 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:32:25,793 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:32:25,797 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:32:25,798 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:32:25,799 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:32:25,808 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:32:25,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:32:25,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:32:25,810 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:32:25,811 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:32:25,812 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:32:25,812 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:32:25,814 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:32:25,818 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:32:25,833 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:32:25,834 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:32:25,835 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:32:25,836 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:32:25,836 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:32:25,836 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:32:25,837 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:32:25,838 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:32:25,843 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 22:32:25,886 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:32:25,886 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:32:25,888 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:32:25,888 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:32:25,889 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:32:25,889 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:32:25,890 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:32:25,890 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:32:25,890 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:32:25,891 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:32:25,892 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:32:25,892 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:32:25,893 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:32:25,893 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:32:25,894 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:32:25,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:32:25,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:32:25,895 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:32:25,895 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:32:25,895 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:32:25,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:32:25,896 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:32:25,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:32:25,896 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:32:25,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:32:25,897 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:32:25,897 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:32:25,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:32:25,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:25,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:32:25,899 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:32:25,899 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:32:25,899 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:32:25,900 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:32:25,900 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:32:25,900 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:32:25,901 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:32:25,901 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_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ab73cdbc4fc94916cfd54e15d41355423928f7df20ed3143a601f63d7e5fb6bb [2022-11-25 22:32:26,296 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:32:26,327 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:32:26,331 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:32:26,333 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:32:26,333 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:32:26,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:29,610 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:32:30,009 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:32:30,009 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:30,032 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/4045a981f/c22d9ccd8b7c4b6e9f1c913ca456b3fe/FLAGf450a7209 [2022-11-25 22:32:30,052 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/data/4045a981f/c22d9ccd8b7c4b6e9f1c913ca456b3fe [2022-11-25 22:32:30,055 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:32:30,056 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:32:30,057 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:30,058 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:32:30,061 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:32:30,062 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:30" (1/1) ... [2022-11-25 22:32:30,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70c89a3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:30, skipping insertion in model container [2022-11-25 22:32:30,064 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:32:30" (1/1) ... [2022-11-25 22:32:30,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:32:30,133 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:32:30,529 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:32:31,039 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:32:31,045 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:31,046 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:31,049 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:31,049 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:31,073 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:32:31,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:31,093 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:32:31,114 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:32:31,171 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:32:31,174 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:31,178 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:32:31,182 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:31,186 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:32:31,190 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:32:31,195 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:32:31,391 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:32:31,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31 WrapperNode [2022-11-25 22:32:31,392 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:32:31,393 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:31,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:32:31,394 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:32:31,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,448 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,488 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-25 22:32:31,488 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:32:31,491 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:32:31,492 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:32:31,492 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:32:31,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,533 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,539 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:32:31,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:32:31,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:32:31,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:32:31,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (1/1) ... [2022-11-25 22:32:31,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:32:31,580 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:32:31,593 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:32:31,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:32:31,632 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:32:31,632 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:32:31,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:32:31,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:32:31,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:32:31,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:32:31,633 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:32:31,784 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:32:31,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:32:31,926 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:32:31,931 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:32:31,932 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:32:31,934 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:31 BoogieIcfgContainer [2022-11-25 22:32:31,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:32:31,965 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:32:31,965 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:32:31,969 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:32:31,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:32:30" (1/3) ... [2022-11-25 22:32:31,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b49b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:31, skipping insertion in model container [2022-11-25 22:32:31,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:32:31" (2/3) ... [2022-11-25 22:32:31,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b49b277 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:32:31, skipping insertion in model container [2022-11-25 22:32:31,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:31" (3/3) ... [2022-11-25 22:32:31,972 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_04_bad.i [2022-11-25 22:32:31,992 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:32:31,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:32:32,047 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:32:32,053 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;@42a7d323, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:32:32,054 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:32:32,058 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 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) [2022-11-25 22:32:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:32:32,072 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:32,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:32,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:32:32,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:32,079 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-11-25 22:32:32,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:32,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1174563000] [2022-11-25 22:32:32,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:32,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:32,094 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:32,102 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:32,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:32:32,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:32:32,283 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 2 conjunts are in the unsatisfiable core [2022-11-25 22:32:32,288 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 22:32:32,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:32:32,406 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 22:32:32,407 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-11-25 22:32:32,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1174563000] [2022-11-25 22:32:32,408 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1174563000] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:32:32,408 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:32:32,408 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-25 22:32:32,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431195839] [2022-11-25 22:32:32,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:32:32,417 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-25 22:32:32,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-11-25 22:32:32,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-25 22:32:32,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:32,478 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 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) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:32:32,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:32:32,528 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-11-25 22:32:32,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-25 22:32:32,530 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-11-25 22:32:32,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:32:32,537 INFO L225 Difference]: With dead ends: 38 [2022-11-25 22:32:32,538 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 22:32:32,541 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-25 22:32:32,544 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:32:32,545 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:32:32,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 22:32:32,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 22:32:32,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:32:32,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-11-25 22:32:32,588 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-11-25 22:32:32,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:32:32,589 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-11-25 22:32:32,589 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:32:32,589 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-11-25 22:32:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-11-25 22:32:32,591 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:32:32,591 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:32:32,617 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:32,817 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:32,818 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:32:32,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:32:32,823 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-11-25 22:32:32,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:32:32,828 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [791590376] [2022-11-25 22:32:32,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:32:32,829 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:32,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:32:32,831 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:32:32,837 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-11-25 22:32:32,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:32,944 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:32:32,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:32:33,027 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 22:32:33,028 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:32:33,031 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:32:33,034 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:32:33,055 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-11-25 22:32:33,246 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:32:33,250 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:32:33,254 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:32:33,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:32:33 BoogieIcfgContainer [2022-11-25 22:32:33,282 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:32:33,283 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:32:33,283 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:32:33,283 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:32:33,284 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:32:31" (3/4) ... [2022-11-25 22:32:33,286 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 22:32:33,329 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 22:32:33,329 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:32:33,330 INFO L158 Benchmark]: Toolchain (without parser) took 3273.87ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 52.8MB in the beginning and 59.5MB in the end (delta: -6.7MB). Peak memory consumption was 12.4MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,331 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:32:33,331 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1335.15ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 47.1MB in the end (delta: 5.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,331 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.55ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 44.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,332 INFO L158 Benchmark]: Boogie Preprocessor took 67.18ms. Allocated memory is still 77.6MB. Free memory was 44.2MB in the beginning and 42.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,333 INFO L158 Benchmark]: RCFGBuilder took 403.58ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.1MB in the beginning and 66.9MB in the end (delta: -24.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,333 INFO L158 Benchmark]: TraceAbstraction took 1317.38ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 62.3MB in the end (delta: 4.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,334 INFO L158 Benchmark]: Witness Printer took 46.32ms. Allocated memory is still 94.4MB. Free memory was 62.3MB in the beginning and 59.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:32:33,336 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 58.7MB. Free memory was 36.9MB in the beginning and 36.8MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1335.15ms. Allocated memory is still 77.6MB. Free memory was 52.6MB in the beginning and 47.1MB in the end (delta: 5.5MB). Peak memory consumption was 31.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.55ms. Allocated memory is still 77.6MB. Free memory was 47.1MB in the beginning and 44.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.18ms. Allocated memory is still 77.6MB. Free memory was 44.2MB in the beginning and 42.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 403.58ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 42.1MB in the beginning and 66.9MB in the end (delta: -24.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1317.38ms. Allocated memory is still 94.4MB. Free memory was 66.3MB in the beginning and 62.3MB in the end (delta: 4.0MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Witness Printer took 46.32ms. Allocated memory is still 94.4MB. Free memory was 62.3MB in the beginning and 59.5MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1561]: 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); [L1548] static const int STATIC_CONST_TRUE = 1; [L1549] static const int STATIC_CONST_FALSE = 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1570] 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}, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1414] COND TRUE line != ((void *)0) [L1570] 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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1571] CALL CWE191_Integer_Underflow__int_rand_postdec_04_bad() [L1552] int data; [L1553] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1554] COND TRUE \read(STATIC_CONST_TRUE) [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1556] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=1, rand()=0, rand()=65536, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] [L1556] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1558] COND TRUE \read(STATIC_CONST_TRUE) [L1561] data-- VAL [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, STATIC_CONST_FALSE=0, STATIC_CONST_TRUE=1] - UnprovableResult [Line: 1561]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.2s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 22:32:33,360 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_16ad6602-451a-472f-8bbe-812c38cb619d/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)