./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_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_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 --- 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 00:05:38,338 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:05:38,340 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:05:38,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:05:38,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:05:38,368 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:05:38,369 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:05:38,371 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:05:38,373 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:05:38,374 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:05:38,375 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:05:38,376 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:05:38,376 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:05:38,377 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:05:38,383 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:05:38,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:05:38,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:05:38,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:05:38,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:05:38,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:05:38,399 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:05:38,407 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:05:38,408 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:05:38,409 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:05:38,419 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:05:38,419 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:05:38,420 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:05:38,421 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:05:38,421 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:05:38,422 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:05:38,423 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:05:38,423 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:05:38,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:05:38,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:05:38,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:05:38,426 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:05:38,427 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:05:38,427 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:05:38,427 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:05:38,428 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:05:38,429 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:05:38,435 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:05:38,484 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:05:38,484 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:05:38,485 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:05:38,485 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:05:38,486 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:05:38,486 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:05:38,487 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:05:38,487 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:05:38,487 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:05:38,487 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:05:38,489 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:05:38,489 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:05:38,489 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:05:38,489 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:05:38,490 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:05:38,490 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:05:38,490 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:05:38,491 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:05:38,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:05:38,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:05:38,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:05:38,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:05:38,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:05:38,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:05:38,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:05:38,493 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:05:38,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:05:38,494 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:05:38,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:05:38,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:05:38,494 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:05:38,495 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:38,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:05:38,495 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:05:38,496 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:05:38,496 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:05:38,496 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:05:38,496 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:05:38,496 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:05:38,497 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:05:38,497 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_51ddadcb-b8af-4e90-b71e-707df9eabad1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 [2022-11-26 00:05:38,796 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:05:38,823 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:05:38,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:05:38,827 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:05:38,828 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:05:38,829 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:42,060 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:05:42,528 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:05:42,530 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:42,561 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/f1c1f0239/15daf8b879a54ab589f9f20986691442/FLAG0f99ddc10 [2022-11-26 00:05:42,581 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/f1c1f0239/15daf8b879a54ab589f9f20986691442 [2022-11-26 00:05:42,586 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:05:42,587 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:05:42,590 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:42,591 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:05:42,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:05:42,595 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:42" (1/1) ... [2022-11-26 00:05:42,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7910045 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:42, skipping insertion in model container [2022-11-26 00:05:42,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:42" (1/1) ... [2022-11-26 00:05:42,604 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:05:42,651 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:05:43,022 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:05:43,513 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:05:43,524 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:43,528 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:43,539 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:43,543 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:43,571 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:05:43,575 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:05:43,579 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:43,590 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:05:43,615 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:05:43,677 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:05:43,678 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:43,680 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:43,682 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:43,683 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:43,687 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:05:43,689 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:05:43,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:43,824 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:05:43,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43 WrapperNode [2022-11-26 00:05:43,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:43,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:43,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:05:43,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:05:43,833 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,854 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,879 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-11-26 00:05:43,879 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:43,880 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:05:43,880 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:05:43,880 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:05:43,889 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,891 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,895 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,895 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,901 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,904 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,905 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,908 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:05:43,909 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:05:43,909 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:05:43,909 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:05:43,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (1/1) ... [2022-11-26 00:05:43,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:43,928 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:43,940 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:05:43,969 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:05:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:05:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:05:44,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:05:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:05:44,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:05:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:05:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:05:44,002 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:05:44,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:05:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:05:44,003 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:05:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:05:44,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:05:44,154 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:05:44,156 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:05:44,305 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:05:44,374 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:05:44,375 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:05:44,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:44 BoogieIcfgContainer [2022-11-26 00:05:44,378 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:05:44,392 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:05:44,392 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:05:44,395 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:05:44,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:42" (1/3) ... [2022-11-26 00:05:44,396 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385589c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:44, skipping insertion in model container [2022-11-26 00:05:44,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:43" (2/3) ... [2022-11-26 00:05:44,397 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385589c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:44, skipping insertion in model container [2022-11-26 00:05:44,397 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:44" (3/3) ... [2022-11-26 00:05:44,398 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:44,418 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:05:44,419 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:05:44,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:05:44,501 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;@2aaa6521, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:05:44,501 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:05:44,506 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 10 states have (on average 1.4) internal successors, (14), 13 states have internal predecessors, (14), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:05:44,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:05:44,514 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:44,515 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:44,515 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:05:44,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:44,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1767842661, now seen corresponding path program 1 times [2022-11-26 00:05:44,530 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:05:44,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916018591] [2022-11-26 00:05:44,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:44,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:05:44,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:05:44,740 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:05:44,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:05:44,801 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:05:44,803 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:05:44,804 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:05:44,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:05:44,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:05:44,811 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:05:44,815 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:05:44,841 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:05:44 BoogieIcfgContainer [2022-11-26 00:05:44,841 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:05:44,842 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:05:44,842 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:05:44,842 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:05:44,843 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:44" (3/4) ... [2022-11-26 00:05:44,846 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:05:44,846 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:05:44,848 INFO L158 Benchmark]: Toolchain (without parser) took 2260.44ms. Allocated memory is still 178.3MB. Free memory was 132.7MB in the beginning and 75.8MB in the end (delta: 56.9MB). Peak memory consumption was 59.6MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,848 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:05:44,849 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1234.69ms. Allocated memory is still 178.3MB. Free memory was 132.7MB in the beginning and 115.6MB in the end (delta: 17.0MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,849 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.69ms. Allocated memory is still 178.3MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,850 INFO L158 Benchmark]: Boogie Preprocessor took 28.53ms. Allocated memory is still 178.3MB. Free memory was 112.6MB in the beginning and 110.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,850 INFO L158 Benchmark]: RCFGBuilder took 469.15ms. Allocated memory is still 178.3MB. Free memory was 110.5MB in the beginning and 94.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,851 INFO L158 Benchmark]: TraceAbstraction took 449.60ms. Allocated memory is still 178.3MB. Free memory was 94.7MB in the beginning and 75.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:05:44,851 INFO L158 Benchmark]: Witness Printer took 4.53ms. Allocated memory is still 178.3MB. Free memory is still 75.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:05:44,854 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 134.2MB. Free memory is still 75.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1234.69ms. Allocated memory is still 178.3MB. Free memory was 132.7MB in the beginning and 115.6MB in the end (delta: 17.0MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.69ms. Allocated memory is still 178.3MB. Free memory was 114.7MB in the beginning and 112.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.53ms. Allocated memory is still 178.3MB. Free memory was 112.6MB in the beginning and 110.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 469.15ms. Allocated memory is still 178.3MB. Free memory was 110.5MB in the beginning and 94.7MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 449.60ms. Allocated memory is still 178.3MB. Free memory was 94.7MB in the beginning and 75.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 4.53ms. Allocated memory is still 178.3MB. Free memory is still 75.8MB. 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741829:1073741827}, argv={1073741829:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] COND TRUE data < 0 VAL [data=-1073741825, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] data * 2 VAL [data=-1073741825, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, 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: 1580]: 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, 17 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.3s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred 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, 9 NumberOfCodeBlocks, 9 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 00:05:44,885 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 --- 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 00:05:47,353 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:05:47,356 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:05:47,395 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:05:47,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:05:47,400 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:05:47,402 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:05:47,406 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:05:47,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:05:47,414 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:05:47,415 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:05:47,417 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:05:47,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:05:47,420 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:05:47,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:05:47,428 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:05:47,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:05:47,431 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:05:47,433 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:05:47,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:05:47,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:05:47,444 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:05:47,445 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:05:47,446 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:05:47,454 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:05:47,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:05:47,455 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:05:47,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:05:47,458 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:05:47,459 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:05:47,459 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:05:47,461 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:05:47,463 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:05:47,463 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:05:47,464 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:05:47,465 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:05:47,466 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:05:47,466 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:05:47,466 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:05:47,467 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:05:47,468 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:05:47,473 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:05:47,520 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:05:47,523 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:05:47,525 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:05:47,525 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:05:47,526 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:05:47,527 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:05:47,527 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:05:47,527 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:05:47,527 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:05:47,528 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:05:47,529 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:05:47,529 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:05:47,530 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:05:47,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:05:47,531 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:05:47,531 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:05:47,531 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:05:47,532 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:05:47,532 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:05:47,532 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:05:47,533 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:05:47,533 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:05:47,533 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:05:47,533 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:05:47,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:05:47,534 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:05:47,534 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:05:47,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:05:47,535 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:47,535 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:05:47,536 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:05:47,536 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:05:47,536 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:05:47,537 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:05:47,537 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:05:47,537 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:05:47,537 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:05:47,538 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_51ddadcb-b8af-4e90-b71e-707df9eabad1/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7565a7437b9d20454e209c76ad0b654b2f87c4541485d2a2bf11964b00adcda2 [2022-11-26 00:05:47,973 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:05:48,003 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:05:48,006 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:05:48,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:05:48,008 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:05:48,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:51,058 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:05:51,494 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:05:51,499 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:51,521 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/6578b7451/e090af33ec7a48fdb29dfc8eb50d3ba5/FLAG06aaade17 [2022-11-26 00:05:51,534 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/data/6578b7451/e090af33ec7a48fdb29dfc8eb50d3ba5 [2022-11-26 00:05:51,536 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:05:51,538 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:05:51,541 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:51,542 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:05:51,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:05:51,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:51" (1/1) ... [2022-11-26 00:05:51,551 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@212c0e3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:51, skipping insertion in model container [2022-11-26 00:05:51,552 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:05:51" (1/1) ... [2022-11-26 00:05:51,559 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:05:51,628 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:05:52,074 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:05:52,917 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:05:52,924 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:52,926 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:52,928 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:52,929 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:52,954 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:05:52,957 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:05:52,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:53,016 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-11-26 00:05:53,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:05:53,067 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:05:53,114 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:05:53,116 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:53,117 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:53,118 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:53,119 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:53,123 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:05:53,124 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:05:53,126 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:53,131 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:05:53,149 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:05:53,184 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:05:53,185 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:53,187 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:05:53,189 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:53,189 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:05:53,193 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:05:53,194 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:05:53,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:05:53,375 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:05:53,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53 WrapperNode [2022-11-26 00:05:53,376 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:05:53,377 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:53,377 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:05:53,377 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:05:53,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,426 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,448 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-11-26 00:05:53,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:05:53,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:05:53,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:05:53,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:05:53,459 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,463 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,463 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,488 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,491 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,492 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,506 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:05:53,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:05:53,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:05:53,511 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:05:53,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (1/1) ... [2022-11-26 00:05:53,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:05:53,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:05:53,554 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:05:53,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:05:53,597 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:05:53,598 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:05:53,598 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:05:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:05:53,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:05:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:05:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:05:53,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:05:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:05:53,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:05:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:05:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:05:53,601 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 00:05:53,833 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:05:53,835 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:05:54,189 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:05:54,194 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:05:54,195 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:05:54,200 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:54 BoogieIcfgContainer [2022-11-26 00:05:54,200 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:05:54,202 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:05:54,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:05:54,210 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:05:54,210 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:05:51" (1/3) ... [2022-11-26 00:05:54,210 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3a105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:54, skipping insertion in model container [2022-11-26 00:05:54,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:05:53" (2/3) ... [2022-11-26 00:05:54,211 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e3a105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:05:54, skipping insertion in model container [2022-11-26 00:05:54,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:54" (3/3) ... [2022-11-26 00:05:54,212 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_64_bad.i [2022-11-26 00:05:54,233 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:05:54,233 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:05:54,285 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:05:54,291 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;@192a64a8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:05:54,291 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:05:54,295 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:05:54,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:05:54,304 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:05:54,304 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:05:54,305 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:05:54,312 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:05:54,312 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-26 00:05:54,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:05:54,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [575367278] [2022-11-26 00:05:54,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:05:54,331 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 00:05:54,331 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:05:54,333 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 00:05:54,334 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 00:05:54,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:05:54,687 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:05:54,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:05:54,906 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:05:54,908 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:05:54,909 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:05:54,911 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:05:54,939 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 00:05:55,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 00:05:55,116 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:05:55,121 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:05:55,154 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:05:55 BoogieIcfgContainer [2022-11-26 00:05:55,154 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:05:55,154 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:05:55,155 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:05:55,155 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:05:55,155 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:05:54" (3/4) ... [2022-11-26 00:05:55,159 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:05:55,159 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:05:55,160 INFO L158 Benchmark]: Toolchain (without parser) took 3622.12ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 50.8MB in the beginning and 59.1MB in the end (delta: -8.3MB). Peak memory consumption was 19.3MB. Max. memory is 16.1GB. [2022-11-26 00:05:55,160 INFO L158 Benchmark]: CDTParser took 0.33ms. Allocated memory is still 77.6MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:05:55,161 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1834.72ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 50.5MB in the beginning and 42.5MB in the end (delta: 8.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2022-11-26 00:05:55,162 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.98ms. Allocated memory is still 102.8MB. Free memory was 42.3MB in the beginning and 69.5MB in the end (delta: -27.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. [2022-11-26 00:05:55,162 INFO L158 Benchmark]: Boogie Preprocessor took 56.81ms. Allocated memory is still 102.8MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:05:55,163 INFO L158 Benchmark]: RCFGBuilder took 690.15ms. Allocated memory is still 102.8MB. Free memory was 67.4MB in the beginning and 51.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-26 00:05:55,163 INFO L158 Benchmark]: TraceAbstraction took 951.45ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 59.1MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:05:55,164 INFO L158 Benchmark]: Witness Printer took 4.56ms. Allocated memory is still 102.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:05:55,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33ms. Allocated memory is still 77.6MB. Free memory is still 55.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1834.72ms. Allocated memory was 77.6MB in the beginning and 102.8MB in the end (delta: 25.2MB). Free memory was 50.5MB in the beginning and 42.5MB in the end (delta: 8.0MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.98ms. Allocated memory is still 102.8MB. Free memory was 42.3MB in the beginning and 69.5MB in the end (delta: -27.1MB). Peak memory consumption was 5.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.81ms. Allocated memory is still 102.8MB. Free memory was 69.5MB in the beginning and 67.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 690.15ms. Allocated memory is still 102.8MB. Free memory was 67.4MB in the beginning and 51.1MB in the end (delta: 16.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 951.45ms. Allocated memory is still 102.8MB. Free memory was 50.6MB in the beginning and 59.1MB in the end (delta: -8.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.56ms. Allocated memory is still 102.8MB. Free memory is still 59.1MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] 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={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={18:13}, argv={18:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_64_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE191_Integer_Underflow__int_fgets_multiply_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1578] COND TRUE data < 0 VAL [data=-2147483648, dataPtr={12:0}, dataVoidPtr={12:0}, dataVoidPtr={12:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] data * 2 VAL [data=-2147483648, dataPtr={12:0}, dataVoidPtr={12:0}, dataVoidPtr={12:0}, 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: 1580]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s 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 could not prove your program: unable to determine feasibility of some traces [2022-11-26 00:05:55,190 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_51ddadcb-b8af-4e90-b71e-707df9eabad1/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 Result: UNKNOWN: Overapproximated counterexample