./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_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_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 271957050e99ff2a29b662dcc88dc7019674992156d672a97ee53cdade74cb6b --- 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 00:28:19,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:19,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:19,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:19,288 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:19,293 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:19,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:19,304 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:19,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:19,309 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:19,311 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:19,315 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:19,316 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:19,323 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:19,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:19,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:19,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:19,333 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:19,335 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:19,343 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:19,345 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:19,349 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:19,351 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:19,352 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:19,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:19,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:19,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:19,369 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:19,370 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:19,371 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:19,372 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:19,373 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:19,375 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:19,376 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:19,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:19,379 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:19,380 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:19,380 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:19,381 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:19,382 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:19,383 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:19,384 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:28:19,435 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:19,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:19,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:19,437 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:19,438 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:19,439 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:19,439 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:19,439 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:19,440 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:19,440 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:28:19,441 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:19,442 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:19,442 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:28:19,443 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:28:19,443 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:19,443 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:28:19,444 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:28:19,444 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:28:19,445 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:19,446 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:19,446 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:28:19,446 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:19,447 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:19,447 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:19,447 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:19,447 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:28:19,448 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:19,449 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:19,449 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:19,450 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:19,450 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:19,451 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:19,451 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:19,452 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:28:19,452 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:19,452 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:19,453 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:28:19,453 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:28:19,453 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:19,454 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:19,454 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_0f451043-7e93-4126-ae5c-3c31dfbddb06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271957050e99ff2a29b662dcc88dc7019674992156d672a97ee53cdade74cb6b [2022-11-26 00:28:19,839 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:19,883 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:19,886 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:19,888 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:19,888 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:19,890 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:23,080 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:23,488 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:23,489 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:23,512 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/5b87552a4/635c8b388c204e3eaacb909909318bba/FLAG2891f8b23 [2022-11-26 00:28:23,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/5b87552a4/635c8b388c204e3eaacb909909318bba [2022-11-26 00:28:23,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:23,581 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:23,582 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:23,583 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:23,590 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:23,591 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,593 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5852f544 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:23, skipping insertion in model container [2022-11-26 00:28:23,593 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:23" (1/1) ... [2022-11-26 00:28:23,603 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:23,683 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:24,124 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:24,740 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:24,752 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:24,757 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:24,771 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:24,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:24,809 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:24,822 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:24,823 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:24,836 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:24,886 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:24,988 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:24,991 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:24,992 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:24,998 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:24,999 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:25,012 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:25,015 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:25,016 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:25,212 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:25,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25 WrapperNode [2022-11-26 00:28:25,216 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:25,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:25,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:25,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:25,228 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,280 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,315 INFO L138 Inliner]: procedures = 500, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 63 [2022-11-26 00:28:25,316 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:25,316 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:25,316 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:25,317 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:25,338 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,338 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,349 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,349 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,358 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,360 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:25,364 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:25,364 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:25,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:25,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (1/1) ... [2022-11-26 00:28:25,373 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:25,386 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:25,417 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:25,449 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:28:25,474 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:28:25,474 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:28:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:28:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:28:25,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:25,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:25,476 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:25,477 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:28:25,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:28:25,479 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:28:25,729 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:25,732 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:25,930 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:25,962 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:25,963 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:28:25,966 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:25 BoogieIcfgContainer [2022-11-26 00:28:25,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:25,969 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:25,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:25,974 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:25,974 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:23" (1/3) ... [2022-11-26 00:28:25,975 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5395ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:25, skipping insertion in model container [2022-11-26 00:28:25,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:25" (2/3) ... [2022-11-26 00:28:25,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d5395ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:25, skipping insertion in model container [2022-11-26 00:28:25,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:25" (3/3) ... [2022-11-26 00:28:25,983 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:26,008 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:26,008 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:28:26,077 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:26,087 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;@2946a47, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:26,088 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:28:26,094 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 00:28:26,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-26 00:28:26,103 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:26,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:26,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:28:26,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:26,110 INFO L85 PathProgramCache]: Analyzing trace with hash 1767842661, now seen corresponding path program 1 times [2022-11-26 00:28:26,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:28:26,123 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929741126] [2022-11-26 00:28:26,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:26,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:28:26,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:26,381 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:28:26,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:26,503 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-26 00:28:26,506 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:28:26,508 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:28:26,511 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:28:26,513 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:28:26,518 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:28:26,532 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:28:26,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:28:26 BoogieIcfgContainer [2022-11-26 00:28:26,590 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:28:26,593 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:28:26,593 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:28:26,593 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:28:26,594 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:25" (3/4) ... [2022-11-26 00:28:26,599 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:28:26,600 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:28:26,600 INFO L158 Benchmark]: Toolchain (without parser) took 3019.91ms. Allocated memory is still 163.6MB. Free memory was 133.6MB in the beginning and 76.4MB in the end (delta: 57.2MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,601 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 85.3MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:26,602 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1634.56ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 117.1MB in the end (delta: 16.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 97.97ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 114.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,603 INFO L158 Benchmark]: Boogie Preprocessor took 46.78ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,604 INFO L158 Benchmark]: RCFGBuilder took 602.67ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 96.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,604 INFO L158 Benchmark]: TraceAbstraction took 621.49ms. Allocated memory is still 163.6MB. Free memory was 96.1MB in the beginning and 77.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:28:26,605 INFO L158 Benchmark]: Witness Printer took 7.11ms. Allocated memory is still 163.6MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:26,608 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 115.3MB. Free memory was 85.4MB in the beginning and 85.3MB in the end (delta: 134.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1634.56ms. Allocated memory is still 163.6MB. Free memory was 133.2MB in the beginning and 117.1MB in the end (delta: 16.1MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 97.97ms. Allocated memory is still 163.6MB. Free memory was 117.1MB in the beginning and 114.2MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 46.78ms. Allocated memory is still 163.6MB. Free memory was 114.2MB in the beginning and 112.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 602.67ms. Allocated memory is still 163.6MB. Free memory was 112.9MB in the beginning and 96.9MB in the end (delta: 16.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 621.49ms. Allocated memory is still 163.6MB. Free memory was 96.1MB in the beginning and 77.2MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 7.11ms. Allocated memory is still 163.6MB. Free memory is still 76.4MB. 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1581] 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) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741832:1073741831}, argv={1073741832:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1571] COND TRUE data < 0 VAL [data=-1073741825, data=-1073741825, data={7:0}, dataPtr1={7:0}, dataPtr2={7:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] data * 2 VAL [data=-1073741825, data=-1073741825, data={7:0}, dataPtr1={7:0}, dataPtr2={7:0}, 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: 1573]: 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: 0.5s, 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=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 00:28:26,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 271957050e99ff2a29b662dcc88dc7019674992156d672a97ee53cdade74cb6b --- 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 00:28:29,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:28:29,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:28:29,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:28:29,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:28:29,593 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:28:29,596 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:28:29,600 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:28:29,602 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:28:29,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:28:29,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:28:29,613 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:28:29,614 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:28:29,616 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:28:29,618 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:28:29,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:28:29,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:28:29,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:28:29,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:28:29,633 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:28:29,634 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:28:29,639 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:28:29,640 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:28:29,641 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:28:29,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:28:29,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:28:29,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:28:29,661 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:28:29,662 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:28:29,664 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:28:29,665 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:28:29,666 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:28:29,668 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:28:29,669 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:28:29,670 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:28:29,671 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:28:29,672 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:28:29,672 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:28:29,672 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:28:29,673 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:28:29,674 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:28:29,680 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-26 00:28:29,729 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:28:29,729 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:28:29,731 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:28:29,731 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:28:29,732 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:28:29,733 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:28:29,733 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:28:29,733 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:28:29,733 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:28:29,733 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:28:29,735 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:28:29,735 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:28:29,736 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:28:29,736 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:28:29,736 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:28:29,737 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:28:29,737 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:28:29,737 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:28:29,737 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-26 00:28:29,737 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-26 00:28:29,738 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:28:29,738 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-26 00:28:29,738 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:28:29,738 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:28:29,738 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:28:29,739 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:28:29,739 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-26 00:28:29,739 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:28:29,739 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:29,740 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:28:29,740 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:28:29,740 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:28:29,740 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-26 00:28:29,741 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-26 00:28:29,741 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:28:29,741 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:28:29,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-26 00:28:29,741 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_0f451043-7e93-4126-ae5c-3c31dfbddb06/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 271957050e99ff2a29b662dcc88dc7019674992156d672a97ee53cdade74cb6b [2022-11-26 00:28:30,178 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:28:30,212 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:28:30,217 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:28:30,219 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:28:30,220 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:28:30,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:33,429 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:28:33,919 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:28:33,920 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:33,960 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/d8dd4e233/e5045aa4ac854075b2f8637f39b9d4a1/FLAG869a9937d [2022-11-26 00:28:33,989 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/data/d8dd4e233/e5045aa4ac854075b2f8637f39b9d4a1 [2022-11-26 00:28:33,992 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:28:33,994 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:28:33,997 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:33,998 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:28:34,003 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:28:34,004 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:33" (1/1) ... [2022-11-26 00:28:34,006 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ce14fbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:34, skipping insertion in model container [2022-11-26 00:28:34,006 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:28:33" (1/1) ... [2022-11-26 00:28:34,015 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:28:34,093 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:28:34,549 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:35,126 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:35,132 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:35,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:35,137 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:35,137 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:35,162 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:35,168 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:35,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:35,196 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:28:35,245 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:28:35,298 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:28:35,300 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:35,301 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:28:35,304 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:35,305 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:28:35,310 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:28:35,312 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:28:35,313 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:28:35,451 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:28:35,452 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35 WrapperNode [2022-11-26 00:28:35,452 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:28:35,454 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:35,454 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:28:35,454 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:28:35,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,518 INFO L138 Inliner]: procedures = 505, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-26 00:28:35,519 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:28:35,520 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:28:35,520 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:28:35,520 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:28:35,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,536 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,536 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,545 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,547 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,550 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,552 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,556 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:28:35,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:28:35,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:28:35,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:28:35,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (1/1) ... [2022-11-26 00:28:35,565 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:28:35,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:28:35,620 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:28:35,629 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:28:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:28:35,673 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:28:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:28:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:28:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-26 00:28:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:28:35,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:28:35,674 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:28:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-26 00:28:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:28:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-26 00:28:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:28:35,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-26 00:28:35,878 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:28:35,881 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:28:36,229 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:28:36,236 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:28:36,236 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:28:36,238 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:36 BoogieIcfgContainer [2022-11-26 00:28:36,239 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:28:36,241 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:28:36,241 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:28:36,245 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:28:36,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:28:33" (1/3) ... [2022-11-26 00:28:36,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2009c85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:36, skipping insertion in model container [2022-11-26 00:28:36,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:28:35" (2/3) ... [2022-11-26 00:28:36,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2009c85e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:28:36, skipping insertion in model container [2022-11-26 00:28:36,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:36" (3/3) ... [2022-11-26 00:28:36,248 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_32_bad.i [2022-11-26 00:28:36,271 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:28:36,271 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-26 00:28:36,324 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:28:36,331 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;@f32f8e5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:28:36,332 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-26 00:28:36,336 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 00:28:36,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-26 00:28:36,346 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:28:36,348 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:28:36,348 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-26 00:28:36,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:28:36,357 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-11-26 00:28:36,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-26 00:28:36,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305462107] [2022-11-26 00:28:36,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:28:36,380 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 00:28:36,380 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/bin/utaipan-ByfvJB40ur/mathsat [2022-11-26 00:28:36,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 00:28:36,437 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 00:28:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:36,684 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-26 00:28:36,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-26 00:28:36,837 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-11-26 00:28:36,840 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-26 00:28:36,841 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-26 00:28:36,844 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-26 00:28:36,866 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 00:28:37,054 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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 00:28:37,064 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-26 00:28:37,072 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:28:37,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:28:37 BoogieIcfgContainer [2022-11-26 00:28:37,126 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:28:37,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:28:37,127 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:28:37,127 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:28:37,127 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:28:36" (3/4) ... [2022-11-26 00:28:37,132 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-26 00:28:37,132 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:28:37,133 INFO L158 Benchmark]: Toolchain (without parser) took 3139.72ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 51.5MB in the beginning and 42.6MB in the end (delta: 9.0MB). Peak memory consumption was 33.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,134 INFO L158 Benchmark]: CDTParser took 0.36ms. Allocated memory is still 77.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:37,135 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1455.57ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 51.5MB in the beginning and 55.0MB in the end (delta: -3.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,136 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.63ms. Allocated memory is still 100.7MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,136 INFO L158 Benchmark]: Boogie Preprocessor took 36.30ms. Allocated memory is still 100.7MB. Free memory was 52.1MB in the beginning and 49.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,137 INFO L158 Benchmark]: RCFGBuilder took 681.83ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 62.5MB in the end (delta: -12.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,153 INFO L158 Benchmark]: TraceAbstraction took 885.08ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 42.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:28:37,154 INFO L158 Benchmark]: Witness Printer took 5.58ms. Allocated memory is still 100.7MB. Free memory is still 42.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:28:37,157 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36ms. Allocated memory is still 77.6MB. Free memory is still 54.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1455.57ms. Allocated memory was 77.6MB in the beginning and 100.7MB in the end (delta: 23.1MB). Free memory was 51.5MB in the beginning and 55.0MB in the end (delta: -3.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.63ms. Allocated memory is still 100.7MB. Free memory was 55.0MB in the beginning and 52.1MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 36.30ms. Allocated memory is still 100.7MB. Free memory was 52.1MB in the beginning and 49.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 681.83ms. Allocated memory is still 100.7MB. Free memory was 49.9MB in the beginning and 62.5MB in the end (delta: -12.6MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 885.08ms. Allocated memory is still 100.7MB. Free memory was 62.0MB in the beginning and 42.6MB in the end (delta: 19.4MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Witness Printer took 5.58ms. Allocated memory is still 100.7MB. Free memory is still 42.6MB. 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: 1573]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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] [L1581] 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) [L1581] 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] [L1582] CALL CWE191_Integer_Underflow__int_fgets_multiply_32_bad() [L1550] int data; [L1551] int *dataPtr1 = &data; [L1552] int *dataPtr2 = &data; [L1553] data = 0 [L1555] EXPR \read(*dataPtr1) [L1555] int data = *dataPtr1; [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] *dataPtr1 = data [L1570] EXPR \read(*dataPtr2) [L1570] int data = *dataPtr2; [L1571] COND TRUE data < 0 VAL [data={12:0}, data=-2147483648, data=-2147483648, dataPtr1={12:0}, dataPtr2={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] [L1573] data * 2 VAL [data=-2147483648, data=-2147483648, data={12:0}, dataPtr1={12:0}, dataPtr2={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: 1573]: 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, 0.1s 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 00:28:37,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0f451043-7e93-4126-ae5c-3c31dfbddb06/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