./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 e51c4ccc95a2d04b52d1acfdfdda8f55ad40e28b2c7b56ab8a4fa48b2695fb68 --- 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 23:49:20,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:49:20,421 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:49:20,439 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:49:20,439 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:49:20,440 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:49:20,442 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:49:20,444 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:49:20,446 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:49:20,447 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:49:20,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:49:20,449 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:49:20,449 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:49:20,450 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:49:20,451 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:49:20,453 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:49:20,454 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:49:20,455 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:49:20,456 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:49:20,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:49:20,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:49:20,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:49:20,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:49:20,463 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:49:20,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:49:20,467 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:49:20,467 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:49:20,468 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:49:20,469 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:49:20,470 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:49:20,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:49:20,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:49:20,472 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:49:20,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:49:20,474 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:49:20,474 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:49:20,475 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:49:20,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:49:20,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:49:20,477 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:49:20,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:49:20,479 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 23:49:20,502 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:49:20,502 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:49:20,503 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:49:20,503 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:49:20,504 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:49:20,504 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:49:20,504 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:49:20,504 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:49:20,505 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:49:20,505 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 23:49:20,505 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:49:20,505 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:49:20,505 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 23:49:20,506 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 23:49:20,506 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:49:20,506 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 23:49:20,506 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 23:49:20,506 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 23:49:20,507 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:49:20,507 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:49:20,507 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:49:20,508 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:49:20,509 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:49:20,509 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:49:20,509 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:49:20,509 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:49:20,509 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:49:20,510 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:49:20,510 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 23:49:20,510 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:49:20,510 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:49:20,510 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 23:49:20,510 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 23:49:20,511 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:49:20,511 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:49:20,511 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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e51c4ccc95a2d04b52d1acfdfdda8f55ad40e28b2c7b56ab8a4fa48b2695fb68 [2022-11-25 23:49:20,751 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:49:20,777 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:49:20,780 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:49:20,781 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:49:20,782 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:49:20,783 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:23,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:49:24,413 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:49:24,414 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:24,441 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/0d3f22e4e/a8fc83d939fa4f149ae8776c465bb89d/FLAGd8b993508 [2022-11-25 23:49:24,461 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/0d3f22e4e/a8fc83d939fa4f149ae8776c465bb89d [2022-11-25 23:49:24,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:49:24,468 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:49:24,473 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:49:24,474 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:49:24,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:49:24,479 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:49:24" (1/1) ... [2022-11-25 23:49:24,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21f3f3b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:24, skipping insertion in model container [2022-11-25 23:49:24,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:49:24" (1/1) ... [2022-11-25 23:49:24,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:49:24,561 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:49:24,974 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:49:25,474 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:49:25,480 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:25,482 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:25,485 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:25,486 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:25,519 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:49:25,521 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:49:25,531 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:49:25,550 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:49:25,595 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:49:25,605 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:25,606 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:25,612 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:25,612 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:25,622 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:49:25,632 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:49:25,823 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:49:25,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25 WrapperNode [2022-11-25 23:49:25,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:49:25,826 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:49:25,827 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:49:25,827 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:49:25,848 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,895 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,920 INFO L138 Inliner]: procedures = 499, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 23:49:25,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:49:25,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:49:25,921 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:49:25,921 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:49:25,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,934 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,944 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,946 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,947 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,950 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:49:25,951 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:49:25,951 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:49:25,951 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:49:25,952 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (1/1) ... [2022-11-25 23:49:25,965 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:49:25,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:25,999 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:49:26,011 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:49:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:49:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:49:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:49:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 23:49:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:49:26,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:49:26,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:49:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:49:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:49:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 23:49:26,041 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 23:49:26,180 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:49:26,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:49:26,464 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:49:26,553 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:49:26,553 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:49:26,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:26 BoogieIcfgContainer [2022-11-25 23:49:26,555 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:49:26,557 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:49:26,558 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:49:26,561 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:49:26,561 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:49:24" (1/3) ... [2022-11-25 23:49:26,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d47ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:49:26, skipping insertion in model container [2022-11-25 23:49:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:25" (2/3) ... [2022-11-25 23:49:26,562 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d47ede5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:49:26, skipping insertion in model container [2022-11-25 23:49:26,562 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:26" (3/3) ... [2022-11-25 23:49:26,564 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:26,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:49:26,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:49:26,639 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:49:26,646 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;@6a366159, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:49:26,647 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:49:26,650 INFO L276 IsEmpty]: Start isEmpty. Operand has 12 states, 6 states have (on average 1.3333333333333333) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 23:49:26,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-25 23:49:26,656 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:26,657 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-25 23:49:26,657 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:49:26,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:26,663 INFO L85 PathProgramCache]: Analyzing trace with hash 2064580149, now seen corresponding path program 1 times [2022-11-25 23:49:26,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 23:49:26,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [673330813] [2022-11-25 23:49:26,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:26,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 23:49:26,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:49:26,879 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:49:26,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:49:27,005 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 23:49:27,012 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:49:27,013 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:49:27,015 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:49:27,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 23:49:27,026 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:49:27,031 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:49:27,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:49:27 BoogieIcfgContainer [2022-11-25 23:49:27,064 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:49:27,064 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:49:27,064 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:49:27,065 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:49:27,065 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:26" (3/4) ... [2022-11-25 23:49:27,072 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 23:49:27,073 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:49:27,074 INFO L158 Benchmark]: Toolchain (without parser) took 2606.08ms. Allocated memory is still 148.9MB. Free memory was 115.5MB in the beginning and 60.0MB in the end (delta: 55.4MB). Peak memory consumption was 54.6MB. Max. memory is 16.1GB. [2022-11-25 23:49:27,074 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:49:27,075 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1351.32ms. Allocated memory is still 148.9MB. Free memory was 115.1MB in the beginning and 109.0MB in the end (delta: 6.1MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. [2022-11-25 23:49:27,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.70ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 105.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 23:49:27,078 INFO L158 Benchmark]: Boogie Preprocessor took 29.35ms. Allocated memory is still 148.9MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:49:27,081 INFO L158 Benchmark]: RCFGBuilder took 604.53ms. Allocated memory is still 148.9MB. Free memory was 104.1MB in the beginning and 84.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-25 23:49:27,082 INFO L158 Benchmark]: TraceAbstraction took 506.38ms. Allocated memory is still 148.9MB. Free memory was 83.8MB in the beginning and 60.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2022-11-25 23:49:27,082 INFO L158 Benchmark]: Witness Printer took 8.46ms. Allocated memory is still 148.9MB. Free memory was 60.7MB in the beginning and 60.0MB in the end (delta: 695.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:49:27,085 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 119.5MB. Free memory is still 72.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1351.32ms. Allocated memory is still 148.9MB. Free memory was 115.1MB in the beginning and 109.0MB in the end (delta: 6.1MB). Peak memory consumption was 65.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.70ms. Allocated memory is still 148.9MB. Free memory was 109.0MB in the beginning and 105.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.35ms. Allocated memory is still 148.9MB. Free memory was 105.5MB in the beginning and 104.1MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 604.53ms. Allocated memory is still 148.9MB. Free memory was 104.1MB in the beginning and 84.5MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 506.38ms. Allocated memory is still 148.9MB. Free memory was 83.8MB in the beginning and 60.7MB in the end (delta: 23.1MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * Witness Printer took 8.46ms. Allocated memory is still 148.9MB. Free memory was 60.7MB in the beginning and 60.0MB in the end (delta: 695.1kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1558, overapproximation of bitwiseAnd at line 1558. 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); [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1572] RET printLine("Calling bad()...") VAL [\old(argc)=2147450882, argc=2147450882, argv={2147450885:2147450884}, argv={2147450885:2147450884}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL CWE191_Integer_Underflow__int_rand_predec_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_predec_34_unionType myUnion; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myUnion.unionFirst = data [L1561] EXPR myUnion.unionSecond [L1561] int data = myUnion.unionSecond; [L1563] --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, myUnion={5:0}] - UnprovableResult [Line: 1563]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 12 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 23:49:27,113 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 e51c4ccc95a2d04b52d1acfdfdda8f55ad40e28b2c7b56ab8a4fa48b2695fb68 --- 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 23:49:29,458 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 23:49:29,460 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 23:49:29,497 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 23:49:29,498 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 23:49:29,499 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 23:49:29,500 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 23:49:29,502 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 23:49:29,504 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 23:49:29,505 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 23:49:29,506 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 23:49:29,507 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 23:49:29,507 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 23:49:29,508 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 23:49:29,510 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 23:49:29,511 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 23:49:29,512 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 23:49:29,513 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 23:49:29,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 23:49:29,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 23:49:29,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 23:49:29,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 23:49:29,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 23:49:29,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 23:49:29,526 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 23:49:29,527 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 23:49:29,527 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 23:49:29,528 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 23:49:29,529 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 23:49:29,530 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 23:49:29,530 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 23:49:29,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 23:49:29,532 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 23:49:29,533 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 23:49:29,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 23:49:29,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 23:49:29,535 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 23:49:29,536 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 23:49:29,536 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 23:49:29,537 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 23:49:29,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 23:49:29,540 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 23:49:29,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 23:49:29,581 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 23:49:29,585 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 23:49:29,585 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 23:49:29,586 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 23:49:29,587 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 23:49:29,587 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 23:49:29,587 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 23:49:29,588 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 23:49:29,588 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 23:49:29,589 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 23:49:29,589 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 23:49:29,590 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 23:49:29,590 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 23:49:29,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 23:49:29,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 23:49:29,591 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 23:49:29,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 23:49:29,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 23:49:29,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 23:49:29,592 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 23:49:29,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 23:49:29,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 23:49:29,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 23:49:29,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 23:49:29,594 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 23:49:29,594 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 23:49:29,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 23:49:29,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:49:29,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 23:49:29,595 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 23:49:29,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 23:49:29,596 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 23:49:29,596 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 23:49:29,597 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 23:49:29,597 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 23:49:29,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 23:49:29,597 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_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e51c4ccc95a2d04b52d1acfdfdda8f55ad40e28b2c7b56ab8a4fa48b2695fb68 [2022-11-25 23:49:29,967 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 23:49:29,990 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 23:49:29,992 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 23:49:29,994 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 23:49:29,995 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 23:49:29,997 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:33,249 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 23:49:33,694 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 23:49:33,695 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:33,732 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/635bf1ce1/e5f87b875c6b4e20b9e0296218554973/FLAGac03348b8 [2022-11-25 23:49:33,746 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/data/635bf1ce1/e5f87b875c6b4e20b9e0296218554973 [2022-11-25 23:49:33,749 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 23:49:33,751 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 23:49:33,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 23:49:33,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 23:49:33,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 23:49:33,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:49:33" (1/1) ... [2022-11-25 23:49:33,758 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21cebf29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:33, skipping insertion in model container [2022-11-25 23:49:33,758 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 11:49:33" (1/1) ... [2022-11-25 23:49:33,766 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 23:49:33,839 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 23:49:34,218 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:49:34,670 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:49:34,677 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:34,680 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:34,687 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:34,688 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:34,714 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:49:34,716 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:49:34,749 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 23:49:34,766 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 23:49:34,816 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 23:49:34,818 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:34,820 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 23:49:34,822 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:34,823 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 23:49:34,829 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 23:49:34,830 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 23:49:34,955 INFO L208 MainTranslator]: Completed translation [2022-11-25 23:49:34,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34 WrapperNode [2022-11-25 23:49:34,956 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 23:49:34,957 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 23:49:34,957 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 23:49:34,957 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 23:49:34,965 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:34,992 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,015 INFO L138 Inliner]: procedures = 504, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 64 [2022-11-25 23:49:35,016 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 23:49:35,016 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 23:49:35,016 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 23:49:35,016 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 23:49:35,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,030 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,060 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,063 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,064 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,068 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 23:49:35,069 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 23:49:35,069 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 23:49:35,069 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 23:49:35,070 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (1/1) ... [2022-11-25 23:49:35,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 23:49:35,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 23:49:35,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 23:49:35,136 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 23:49:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 23:49:35,156 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 23:49:35,156 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 23:49:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 23:49:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 23:49:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 23:49:35,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 23:49:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 23:49:35,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 23:49:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 23:49:35,158 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 23:49:35,428 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 23:49:35,435 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 23:49:35,687 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 23:49:35,693 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 23:49:35,693 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 23:49:35,695 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:35 BoogieIcfgContainer [2022-11-25 23:49:35,695 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 23:49:35,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 23:49:35,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 23:49:35,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 23:49:35,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 11:49:33" (1/3) ... [2022-11-25 23:49:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d79e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:49:35, skipping insertion in model container [2022-11-25 23:49:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 11:49:34" (2/3) ... [2022-11-25 23:49:35,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19d79e96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 11:49:35, skipping insertion in model container [2022-11-25 23:49:35,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:35" (3/3) ... [2022-11-25 23:49:35,705 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_34_bad.i [2022-11-25 23:49:35,725 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 23:49:35,725 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 23:49:35,774 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 23:49:35,781 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;@499be69f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 23:49:35,781 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 23:49:35,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 17 states have internal predecessors, (19), 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 23:49:35,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 23:49:35,794 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 23:49:35,795 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 23:49:35,796 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 23:49:35,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 23:49:35,802 INFO L85 PathProgramCache]: Analyzing trace with hash 51472802, now seen corresponding path program 1 times [2022-11-25 23:49:35,815 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 23:49:35,816 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [727222993] [2022-11-25 23:49:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 23:49:35,817 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 23:49:35,817 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 23:49:35,823 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 23:49:35,856 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 23:49:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:49:35,986 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 23:49:36,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 23:49:36,060 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-25 23:49:36,063 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 23:49:36,064 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 23:49:36,066 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 23:49:36,093 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 23:49:36,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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 23:49:36,285 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 23:49:36,297 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 23:49:36,353 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 11:49:36 BoogieIcfgContainer [2022-11-25 23:49:36,353 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 23:49:36,355 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 23:49:36,355 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 23:49:36,356 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 23:49:36,356 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 11:49:35" (3/4) ... [2022-11-25 23:49:36,358 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 23:49:36,426 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-25 23:49:36,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 23:49:36,427 INFO L158 Benchmark]: Toolchain (without parser) took 2676.72ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 55.3MB in the beginning and 44.3MB in the end (delta: 11.0MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,428 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 23:49:36,428 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1204.16ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 53.7MB in the end (delta: 1.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,429 INFO L158 Benchmark]: Boogie Procedure Inliner took 58.68ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 50.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,429 INFO L158 Benchmark]: Boogie Preprocessor took 52.02ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,430 INFO L158 Benchmark]: RCFGBuilder took 626.62ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 64.7MB in the end (delta: -16.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,435 INFO L158 Benchmark]: TraceAbstraction took 655.39ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 46.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,436 INFO L158 Benchmark]: Witness Printer took 71.10ms. Allocated memory is still 96.5MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 23:49:36,437 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 77.6MB. Free memory is still 55.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1204.16ms. Allocated memory was 77.6MB in the beginning and 96.5MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 53.7MB in the end (delta: 1.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 58.68ms. Allocated memory is still 96.5MB. Free memory was 53.7MB in the beginning and 50.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.02ms. Allocated memory is still 96.5MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 626.62ms. Allocated memory is still 96.5MB. Free memory was 48.5MB in the beginning and 64.7MB in the end (delta: -16.2MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 655.39ms. Allocated memory is still 96.5MB. Free memory was 63.8MB in the beginning and 46.4MB in the end (delta: 17.3MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 71.10ms. Allocated memory is still 96.5MB. Free memory was 46.4MB in the beginning and 44.3MB in the end (delta: 2.1MB). 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 - CounterExampleResult [Line: 1563]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1572] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1572] 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] [L1573] CALL CWE191_Integer_Underflow__int_rand_predec_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_rand_predec_34_unionType myUnion; [L1557] data = 0 [L1558] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1558] 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, myUnion={5:0}, rand()=0, rand()=32767, rand()=32767, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1558] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1559] myUnion.unionFirst = data [L1561] EXPR myUnion.unionSecond [L1561] int data = myUnion.unionSecond; [L1563] --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, myUnion={5:0}] - UnprovableResult [Line: 1563]: 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, 21 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=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-25 23:49:36,460 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_de0b1eeb-cc34-4fed-afd7-a45bd2bbe80c/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)