./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_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_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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_12bd12f7-ec06-4425-9c48-4966d4c8666c/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 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 --- 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 [2022-11-26 00:44:03,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:44:03,578 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:44:03,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:44:03,613 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:44:03,614 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:44:03,615 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:44:03,617 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:44:03,619 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:44:03,621 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:44:03,623 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:44:03,625 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:44:03,627 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:44:03,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:44:03,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:44:03,634 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:44:03,637 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:44:03,642 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:44:03,644 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:44:03,646 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:44:03,651 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:44:03,653 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:44:03,654 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:44:03,655 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:44:03,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:44:03,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:44:03,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:44:03,660 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:44:03,660 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:44:03,661 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:44:03,662 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:44:03,662 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:44:03,663 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:44:03,664 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:44:03,665 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:44:03,665 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:44:03,666 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:44:03,666 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:44:03,667 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:44:03,668 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:44:03,669 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:44:03,670 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:44:03,692 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:44:03,693 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:44:03,693 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:44:03,693 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:44:03,694 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:44:03,694 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:44:03,694 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:44:03,695 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:44:03,695 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:44:03,695 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:44:03,695 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:44:03,696 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:44:03,696 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:44:03,696 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:44:03,696 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:44:03,696 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:44:03,697 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:44:03,697 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:44:03,698 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:44:03,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:44:03,698 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:44:03,698 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:44:03,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:44:03,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:44:03,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:44:03,699 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:44:03,699 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:44:03,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:44:03,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:44:03,700 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:44:03,700 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:44:03,700 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:03,701 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:44:03,701 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:44:03,701 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:44:03,701 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:44:03,701 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:44:03,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:44:03,702 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:44:03,702 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:44:03,702 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_12bd12f7-ec06-4425-9c48-4966d4c8666c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 [2022-11-26 00:44:03,955 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:44:03,979 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:44:03,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:44:03,984 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:44:03,984 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:44:03,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:07,097 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:44:07,578 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:44:07,578 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:07,596 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/4e111851f/84ad1f4a141341a28d33814353630e4d/FLAG164435324 [2022-11-26 00:44:07,617 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/4e111851f/84ad1f4a141341a28d33814353630e4d [2022-11-26 00:44:07,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:44:07,625 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:44:07,627 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:07,628 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:44:07,633 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:44:07,633 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:07" (1/1) ... [2022-11-26 00:44:07,635 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@270c0eb0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:07, skipping insertion in model container [2022-11-26 00:44:07,636 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:07" (1/1) ... [2022-11-26 00:44:07,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:44:07,725 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:44:08,168 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:44:08,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:44:08,684 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:08,687 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:08,698 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:08,699 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:08,738 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:44:08,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:08,765 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:44:08,801 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:44:08,895 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:44:08,897 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:08,898 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:08,908 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:08,910 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:08,929 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:44:08,931 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:09,131 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:44:09,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09 WrapperNode [2022-11-26 00:44:09,136 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:09,138 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:09,139 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:44:09,139 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:44:09,148 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,182 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,231 INFO L138 Inliner]: procedures = 500, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-11-26 00:44:09,232 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:09,233 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:44:09,233 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:44:09,233 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:44:09,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,244 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,261 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,261 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,281 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:44:09,295 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:44:09,295 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:44:09,295 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:44:09,296 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (1/1) ... [2022-11-26 00:44:09,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:09,315 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:09,327 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:44:09,333 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:44:09,366 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:44:09,366 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:44:09,367 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:44:09,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:44:09,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:44:09,367 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:44:09,367 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:44:09,600 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:44:09,602 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:44:09,829 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:44:09,900 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:44:09,900 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:44:09,903 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:09 BoogieIcfgContainer [2022-11-26 00:44:09,903 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:44:09,905 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:44:09,905 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:44:09,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:44:09,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:44:07" (1/3) ... [2022-11-26 00:44:09,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2688e1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:09, skipping insertion in model container [2022-11-26 00:44:09,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:09" (2/3) ... [2022-11-26 00:44:09,910 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2688e1fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:09, skipping insertion in model container [2022-11-26 00:44:09,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:09" (3/3) ... [2022-11-26 00:44:09,911 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:09,939 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:44:09,939 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:44:10,002 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:44:10,010 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;@4304bf24, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:44:10,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:44:10,014 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) [2022-11-26 00:44:10,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:44:10,023 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:10,024 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:10,024 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:44:10,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:10,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1699350023, now seen corresponding path program 1 times [2022-11-26 00:44:10,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:44:10,041 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149273196] [2022-11-26 00:44:10,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:10,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:44:10,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:44:10,254 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:44:10,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:44:10,377 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:44:10,381 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:44:10,383 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:44:10,385 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:44:10,386 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:44:10,390 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:44:10,396 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:44:10,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:44:10 BoogieIcfgContainer [2022-11-26 00:44:10,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:44:10,441 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:44:10,441 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:44:10,442 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:44:10,443 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:09" (3/4) ... [2022-11-26 00:44:10,447 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:44:10,448 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:44:10,449 INFO L158 Benchmark]: Toolchain (without parser) took 2824.31ms. Allocated memory is still 174.1MB. Free memory was 138.7MB in the beginning and 74.4MB in the end (delta: 64.3MB). Peak memory consumption was 63.3MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,450 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 134.2MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:10,451 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1509.50ms. Allocated memory is still 174.1MB. Free memory was 138.7MB in the beginning and 120.6MB in the end (delta: 18.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,452 INFO L158 Benchmark]: Boogie Procedure Inliner took 94.93ms. Allocated memory is still 174.1MB. Free memory was 120.6MB in the beginning and 117.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,453 INFO L158 Benchmark]: Boogie Preprocessor took 61.27ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,460 INFO L158 Benchmark]: RCFGBuilder took 607.94ms. Allocated memory is still 174.1MB. Free memory was 115.3MB in the beginning and 96.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,462 INFO L158 Benchmark]: TraceAbstraction took 533.93ms. Allocated memory is still 174.1MB. Free memory was 96.5MB in the beginning and 74.4MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-11-26 00:44:10,462 INFO L158 Benchmark]: Witness Printer took 7.22ms. Allocated memory is still 174.1MB. Free memory is still 74.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:10,471 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 134.2MB. Free memory is still 76.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1509.50ms. Allocated memory is still 174.1MB. Free memory was 138.7MB in the beginning and 120.6MB in the end (delta: 18.2MB). Peak memory consumption was 50.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 94.93ms. Allocated memory is still 174.1MB. Free memory was 120.6MB in the beginning and 117.4MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 61.27ms. Allocated memory is still 174.1MB. Free memory was 117.4MB in the beginning and 115.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 607.94ms. Allocated memory is still 174.1MB. Free memory was 115.3MB in the beginning and 96.5MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 533.93ms. Allocated memory is still 174.1MB. Free memory was 96.5MB in the beginning and 74.4MB in the end (delta: 22.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Witness Printer took 7.22ms. Allocated memory is still 174.1MB. Free memory is still 74.4MB. 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: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 0; [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [\old(argc)=2147516417, argc=2147516417, argv={2147516419:2147516418}, argv={2147516419:2147516418}, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_predec_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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] [L1572] --data VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: 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: 0.4s, 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=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:44:10,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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_12bd12f7-ec06-4425-9c48-4966d4c8666c/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 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 --- 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 [2022-11-26 00:44:12,932 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:44:12,934 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:44:12,961 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:44:12,961 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:44:12,967 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:44:12,969 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:44:12,973 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:44:12,975 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:44:12,981 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:44:12,982 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:44:12,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:44:12,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:44:12,988 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:44:12,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:44:12,996 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:44:12,997 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:44:12,998 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:44:13,001 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:44:13,008 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:44:13,009 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:44:13,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:44:13,014 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:44:13,017 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:44:13,025 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:44:13,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:44:13,026 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:44:13,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:44:13,029 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:44:13,030 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:44:13,031 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:44:13,032 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:44:13,034 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:44:13,035 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:44:13,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:44:13,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:44:13,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:44:13,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:44:13,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:44:13,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:44:13,046 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:44:13,047 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:44:13,089 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:44:13,089 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:44:13,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:44:13,091 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:44:13,092 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:44:13,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:44:13,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:44:13,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:44:13,094 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:44:13,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:44:13,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:44:13,095 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:44:13,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:44:13,097 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:44:13,097 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:44:13,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:44:13,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:44:13,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:44:13,098 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:44:13,099 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:44:13,099 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:44:13,099 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:44:13,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:44:13,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:44:13,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:44:13,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:44:13,101 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:44:13,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:44:13,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:13,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:44:13,102 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:44:13,102 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:44:13,103 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:44:13,103 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:44:13,103 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:44:13,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:44:13,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:44:13,104 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_12bd12f7-ec06-4425-9c48-4966d4c8666c/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 529c5f153063cc5ff6c3961268cce7a1a9eb1b4894b5183b16333d385eaddca4 [2022-11-26 00:44:13,503 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:44:13,531 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:44:13,534 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:44:13,535 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:44:13,536 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:44:13,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:16,885 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:44:17,287 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:44:17,288 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:17,318 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/dd23c5ccc/56f916e3edff480bb5850dcf88219bcf/FLAG72a7b61a1 [2022-11-26 00:44:17,331 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/data/dd23c5ccc/56f916e3edff480bb5850dcf88219bcf [2022-11-26 00:44:17,333 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:44:17,335 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:44:17,336 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:17,337 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:44:17,343 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:44:17,344 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:17" (1/1) ... [2022-11-26 00:44:17,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@238a468a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:17, skipping insertion in model container [2022-11-26 00:44:17,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:44:17" (1/1) ... [2022-11-26 00:44:17,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:44:17,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:44:17,856 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:44:18,363 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:44:18,368 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:18,370 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:18,372 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:18,373 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:18,392 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:44:18,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:18,409 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:44:18,428 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:44:18,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:44:18,515 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:18,517 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:44:18,522 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:18,525 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:44:18,529 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:44:18,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:44:18,717 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:44:18,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18 WrapperNode [2022-11-26 00:44:18,718 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:44:18,719 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:18,720 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:44:18,720 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:44:18,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,759 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,792 INFO L138 Inliner]: procedures = 505, calls = 55, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 62 [2022-11-26 00:44:18,792 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:44:18,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:44:18,793 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:44:18,793 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:44:18,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,807 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,807 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,816 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,818 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,821 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,823 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:44:18,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:44:18,828 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:44:18,828 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:44:18,829 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (1/1) ... [2022-11-26 00:44:18,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:44:18,848 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:44:18,861 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:44:18,869 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:44:18,910 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:44:18,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:44:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:44:18,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:44:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:44:18,912 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:44:18,912 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:44:19,109 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:44:19,111 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:44:19,310 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:44:19,316 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:44:19,317 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:44:19,319 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19 BoogieIcfgContainer [2022-11-26 00:44:19,319 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:44:19,330 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:44:19,330 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:44:19,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:44:19,333 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:44:17" (1/3) ... [2022-11-26 00:44:19,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a614a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:19, skipping insertion in model container [2022-11-26 00:44:19,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:44:18" (2/3) ... [2022-11-26 00:44:19,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a614a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:44:19, skipping insertion in model container [2022-11-26 00:44:19,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19" (3/3) ... [2022-11-26 00:44:19,341 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_22_bad.i [2022-11-26 00:44:19,355 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:44:19,355 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:44:19,395 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:44:19,400 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;@233edee4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:44:19,401 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:44:19,404 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 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) [2022-11-26 00:44:19,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:44:19,410 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:44:19,411 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:44:19,411 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:44:19,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:44:19,416 INFO L85 PathProgramCache]: Analyzing trace with hash 420466469, now seen corresponding path program 1 times [2022-11-26 00:44:19,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:44:19,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [815374962] [2022-11-26 00:44:19,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:44:19,429 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 [2022-11-26 00:44:19,429 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:44:19,431 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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) [2022-11-26 00:44:19,455 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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 [2022-11-26 00:44:19,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:44:19,569 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:44:19,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:44:19,633 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:44:19,635 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:44:19,636 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:44:19,638 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:44:19,658 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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 [2022-11-26 00:44:19,852 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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 [2022-11-26 00:44:19,856 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:44:19,862 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:44:19,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:44:19 BoogieIcfgContainer [2022-11-26 00:44:19,892 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:44:19,893 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:44:19,893 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:44:19,893 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:44:19,894 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:44:19" (3/4) ... [2022-11-26 00:44:19,896 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-26 00:44:19,997 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:44:19,998 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:44:20,016 INFO L158 Benchmark]: Toolchain (without parser) took 2680.96ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.8MB in the beginning and 54.9MB in the end (delta: -12.1MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,016 INFO L158 Benchmark]: CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:44:20,017 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1382.39ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.6MB in the beginning and 54.7MB in the end (delta: -12.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,018 INFO L158 Benchmark]: Boogie Procedure Inliner took 72.93ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,018 INFO L158 Benchmark]: Boogie Preprocessor took 34.05ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,019 INFO L158 Benchmark]: RCFGBuilder took 491.42ms. Allocated memory is still 83.9MB. Free memory was 49.6MB in the beginning and 35.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,020 INFO L158 Benchmark]: TraceAbstraction took 562.74ms. Allocated memory is still 83.9MB. Free memory was 56.4MB in the beginning and 40.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,020 INFO L158 Benchmark]: Witness Printer took 121.74ms. Allocated memory is still 83.9MB. Free memory was 40.0MB in the beginning and 54.9MB in the end (delta: -14.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:44:20,023 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32ms. Allocated memory is still 56.6MB. Free memory was 35.1MB in the beginning and 35.0MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1382.39ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 42.6MB in the beginning and 54.7MB in the end (delta: -12.1MB). Peak memory consumption was 20.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 72.93ms. Allocated memory is still 83.9MB. Free memory was 54.7MB in the beginning and 51.7MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.05ms. Allocated memory is still 83.9MB. Free memory was 51.3MB in the beginning and 49.6MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 491.42ms. Allocated memory is still 83.9MB. Free memory was 49.6MB in the beginning and 35.8MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 562.74ms. Allocated memory is still 83.9MB. Free memory was 56.4MB in the beginning and 40.0MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 121.74ms. Allocated memory is still 83.9MB. Free memory was 40.0MB in the beginning and 54.9MB in the end (delta: -14.8MB). 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: 1572]: 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] int CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 0; VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1561] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, 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) [L1561] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1562] CALL CWE191_Integer_Underflow__int_rand_predec_22_bad() [L1552] int data; [L1553] data = 0 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=0, data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, rand()=0, rand()=1073741823, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1555] CWE191_Integer_Underflow__int_rand_predec_22_badGlobal = 1 [L1556] CALL CWE191_Integer_Underflow__int_rand_predec_22_badSink(data) [L1569] COND TRUE \read(CWE191_Integer_Underflow__int_rand_predec_22_badGlobal) VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, 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] [L1572] --data VAL [\old(data)=-2147483648, CWE191_Integer_Underflow__int_rand_predec_22_badGlobal=1, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1572]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, 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=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-11-26 00:44:20,052 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_12bd12f7-ec06-4425-9c48-4966d4c8666c/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)