./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- 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-2329fc7 [2022-12-13 16:15:19,721 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:15:19,722 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:15:19,735 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:15:19,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:15:19,736 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:15:19,737 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:15:19,738 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:15:19,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:15:19,740 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:15:19,740 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:15:19,741 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:15:19,741 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:15:19,742 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:15:19,743 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:15:19,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:15:19,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:15:19,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:15:19,745 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:15:19,747 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:15:19,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:15:19,748 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:15:19,749 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:15:19,750 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:15:19,752 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:15:19,752 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:15:19,752 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:15:19,753 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:15:19,753 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:15:19,754 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:15:19,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:15:19,754 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:15:19,755 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:15:19,755 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:15:19,757 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:15:19,757 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:15:19,757 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:15:19,758 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:15:19,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:15:19,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:15:19,759 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:15:19,760 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:15:19,776 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:15:19,776 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:15:19,776 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:15:19,776 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:15:19,777 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:15:19,777 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:15:19,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:15:19,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:15:19,778 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:15:19,788 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:15:19,788 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:15:19,789 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:15:19,790 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:15:19,790 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:15:19,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:15:19,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:15:19,790 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:15:19,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:15:19,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:15:19,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:15:19,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:15:19,791 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:15:19,792 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:15:19,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:15:19,792 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:15:19,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:15:19,792 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:15:19,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:15:19,793 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:15:19,793 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2022-12-13 16:15:19,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:15:19,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:15:19,990 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:15:19,991 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:15:19,991 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:15:19,992 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:22,553 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:15:22,784 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:15:22,784 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:22,797 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/51506d4f8/fb617b8efeca450784e4da2185218669/FLAGbdd7bdc5f [2022-12-13 16:15:23,100 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/51506d4f8/fb617b8efeca450784e4da2185218669 [2022-12-13 16:15:23,102 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:15:23,103 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:15:23,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:15:23,104 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:15:23,106 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:15:23,107 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,108 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21faf14a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23, skipping insertion in model container [2022-12-13 16:15:23,108 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,114 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:15:23,154 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:15:23,385 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:15:23,695 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:15:23,699 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:23,700 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:23,702 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:23,702 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:23,717 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:15:23,722 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:15:23,723 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:15:23,730 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:15:23,743 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:15:23,783 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:15:23,785 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:23,786 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:23,788 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:23,788 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:23,792 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:15:23,794 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:15:23,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:15:23,932 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:15:23,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23 WrapperNode [2022-12-13 16:15:23,933 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:15:23,934 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:15:23,934 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:15:23,934 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:15:23,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,984 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 16:15:23,984 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:15:23,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:15:23,985 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:15:23,985 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:15:23,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,995 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:23,996 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,003 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,005 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,008 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:15:24,008 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:15:24,009 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:15:24,009 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:15:24,010 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (1/1) ... [2022-12-13 16:15:24,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:15:24,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:15:24,035 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:15:24,037 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:15:24,064 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:15:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:15:24,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:15:24,065 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:15:24,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:15:24,163 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:15:24,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:15:24,252 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:15:24,257 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:15:24,257 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:15:24,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:24 BoogieIcfgContainer [2022-12-13 16:15:24,259 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:15:24,261 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:15:24,261 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:15:24,263 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:15:24,263 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:15:23" (1/3) ... [2022-12-13 16:15:24,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f65155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:15:24, skipping insertion in model container [2022-12-13 16:15:24,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:23" (2/3) ... [2022-12-13 16:15:24,264 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f65155c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:15:24, skipping insertion in model container [2022-12-13 16:15:24,264 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:24" (3/3) ... [2022-12-13 16:15:24,265 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:24,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:15:24,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:15:24,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:15:24,317 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=PETRI_NET, 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;@1690e370, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:15:24,317 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:15:24,321 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) [2022-12-13 16:15:24,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 16:15:24,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:15:24,327 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:24,327 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:15:24,331 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:24,331 INFO L85 PathProgramCache]: Analyzing trace with hash -761706190, now seen corresponding path program 1 times [2022-12-13 16:15:24,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:15:24,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254318861] [2022-12-13 16:15:24,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:24,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:15:24,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:15:24,433 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:15:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:15:24,468 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:15:24,470 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:15:24,470 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:15:24,472 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:15:24,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:15:24,476 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 16:15:24,479 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:15:24,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:15:24 BoogieIcfgContainer [2022-12-13 16:15:24,496 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:15:24,496 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:15:24,497 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:15:24,497 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:15:24,497 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:24" (3/4) ... [2022-12-13 16:15:24,499 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:15:24,499 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:15:24,500 INFO L158 Benchmark]: Toolchain (without parser) took 1397.28ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 111.7MB in the beginning and 146.9MB in the end (delta: -35.2MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,501 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:15:24,501 INFO L158 Benchmark]: CACSL2BoogieTranslator took 829.62ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 111.2MB in the beginning and 183.6MB in the end (delta: -72.4MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,501 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.57ms. Allocated memory is still 222.3MB. Free memory was 182.6MB in the beginning and 180.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,502 INFO L158 Benchmark]: Boogie Preprocessor took 22.73ms. Allocated memory is still 222.3MB. Free memory was 180.5MB in the beginning and 178.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,502 INFO L158 Benchmark]: RCFGBuilder took 250.27ms. Allocated memory is still 222.3MB. Free memory was 178.4MB in the beginning and 165.6MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,503 INFO L158 Benchmark]: TraceAbstraction took 235.43ms. Allocated memory is still 222.3MB. Free memory was 164.7MB in the beginning and 147.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,503 INFO L158 Benchmark]: Witness Printer took 3.05ms. Allocated memory is still 222.3MB. Free memory was 147.9MB in the beginning and 146.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:15:24,505 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 148.9MB. Free memory is still 116.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 829.62ms. Allocated memory was 148.9MB in the beginning and 222.3MB in the end (delta: 73.4MB). Free memory was 111.2MB in the beginning and 183.6MB in the end (delta: -72.4MB). Peak memory consumption was 72.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.57ms. Allocated memory is still 222.3MB. Free memory was 182.6MB in the beginning and 180.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.73ms. Allocated memory is still 222.3MB. Free memory was 180.5MB in the beginning and 178.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.27ms. Allocated memory is still 222.3MB. Free memory was 178.4MB in the beginning and 165.6MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 235.43ms. Allocated memory is still 222.3MB. Free memory was 164.7MB in the beginning and 147.9MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.05ms. Allocated memory is still 222.3MB. Free memory was 147.9MB in the beginning and 146.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741826:1073741831}, argv={1073741826:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-1073741825, 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: 1570]: 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: 0.2s, 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 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 [2022-12-13 16:15:24,519 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8 --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab --- 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-2329fc7 [2022-12-13 16:15:26,167 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:15:26,168 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:15:26,181 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:15:26,182 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:15:26,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:15:26,183 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:15:26,184 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:15:26,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:15:26,186 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:15:26,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:15:26,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:15:26,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:15:26,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:15:26,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:15:26,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:15:26,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:15:26,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:15:26,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:15:26,193 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:15:26,194 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:15:26,195 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:15:26,196 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:15:26,196 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:15:26,198 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:15:26,198 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:15:26,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:15:26,199 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:15:26,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:15:26,200 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:15:26,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:15:26,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:15:26,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:15:26,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:15:26,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:15:26,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:15:26,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:15:26,209 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:15:26,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:15:26,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:15:26,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:15:26,211 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 16:15:26,228 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:15:26,228 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:15:26,228 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:15:26,229 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:15:26,229 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:15:26,229 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:15:26,230 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:15:26,230 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:15:26,230 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:15:26,230 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:15:26,230 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:15:26,230 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:15:26,231 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:15:26,231 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:15:26,231 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:15:26,231 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:15:26,231 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:15:26,232 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:15:26,232 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:15:26,232 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:15:26,232 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:15:26,232 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:15:26,232 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:15:26,233 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:15:26,233 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:15:26,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:15:26,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:15:26,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:15:26,234 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:15:26,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:15:26,235 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:15:26,235 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:15:26,235 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> afc1bd4fc34914887c296693ed71988d0af11205a8c6ccdc601bdcead6b103ab [2022-12-13 16:15:26,467 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:15:26,486 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:15:26,488 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:15:26,489 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:15:26,489 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:15:26,490 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:29,004 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:15:29,224 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:15:29,225 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:29,238 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/bb3e0dd17/a2fe97d53a0b4780959c0d58be0106e6/FLAGfff726fb4 [2022-12-13 16:15:29,560 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/data/bb3e0dd17/a2fe97d53a0b4780959c0d58be0106e6 [2022-12-13 16:15:29,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:15:29,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:15:29,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:15:29,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:15:29,572 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:15:29,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:15:29" (1/1) ... [2022-12-13 16:15:29,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25e47091 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:29, skipping insertion in model container [2022-12-13 16:15:29,575 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:15:29" (1/1) ... [2022-12-13 16:15:29,583 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:15:29,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:15:29,833 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:15:30,118 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:15:30,122 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:30,123 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:30,124 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:30,125 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:30,139 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:15:30,144 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:15:30,145 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:15:30,155 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:15:30,169 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:15:30,208 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:15:30,210 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:30,211 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:15:30,213 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:30,214 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:15:30,218 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:15:30,221 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:15:30,222 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:15:30,310 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:15:30,310 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30 WrapperNode [2022-12-13 16:15:30,310 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:15:30,311 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:15:30,311 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:15:30,311 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:15:30,317 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,362 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-13 16:15:30,362 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:15:30,363 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:15:30,363 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:15:30,363 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:15:30,369 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,370 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,381 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,383 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,386 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,387 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,391 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:15:30,392 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:15:30,392 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:15:30,392 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:15:30,393 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (1/1) ... [2022-12-13 16:15:30,399 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:15:30,408 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:15:30,418 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:15:30,421 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:15:30,450 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:15:30,450 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:15:30,450 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:15:30,451 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 16:15:30,566 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:15:30,568 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:15:30,695 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:15:30,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:15:30,701 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:15:30,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:30 BoogieIcfgContainer [2022-12-13 16:15:30,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:15:30,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:15:30,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:15:30,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:15:30,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:15:29" (1/3) ... [2022-12-13 16:15:30,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ad49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:15:30, skipping insertion in model container [2022-12-13 16:15:30,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:15:30" (2/3) ... [2022-12-13 16:15:30,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@385ad49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:15:30, skipping insertion in model container [2022-12-13 16:15:30,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:30" (3/3) ... [2022-12-13 16:15:30,712 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_42_bad.i [2022-12-13 16:15:30,728 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:15:30,728 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:15:30,760 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:15:30,765 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=PETRI_NET, 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;@5cf4b405, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:15:30,765 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:15:30,768 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) [2022-12-13 16:15:30,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 16:15:30,774 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:15:30,775 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:15:30,775 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:15:30,779 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:15:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash -761706190, now seen corresponding path program 1 times [2022-12-13 16:15:30,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:15:30,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1590343928] [2022-12-13 16:15:30,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:15:30,792 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 [2022-12-13 16:15:30,792 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:15:30,794 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 16:15:30,795 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:15:30,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:15:30,927 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:15:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:15:30,990 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:15:30,992 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:15:30,993 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:15:30,994 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:15:31,009 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:15:31,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 16:15:31,199 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 16:15:31,202 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:15:31,223 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:15:31 BoogieIcfgContainer [2022-12-13 16:15:31,223 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:15:31,223 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:15:31,223 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:15:31,224 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:15:31,224 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:15:30" (3/4) ... [2022-12-13 16:15:31,226 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:15:31,226 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:15:31,227 INFO L158 Benchmark]: Toolchain (without parser) took 1662.00ms. Allocated memory is still 73.4MB. Free memory was 47.1MB in the beginning and 38.9MB in the end (delta: 8.2MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-13 16:15:31,227 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:15:31,227 INFO L158 Benchmark]: CACSL2BoogieTranslator took 743.97ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 36.7MB in the end (delta: 10.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. [2022-12-13 16:15:31,228 INFO L158 Benchmark]: Boogie Procedure Inliner took 50.98ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 33.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:15:31,228 INFO L158 Benchmark]: Boogie Preprocessor took 28.30ms. Allocated memory is still 73.4MB. Free memory was 33.6MB in the beginning and 31.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:15:31,228 INFO L158 Benchmark]: RCFGBuilder took 311.27ms. Allocated memory is still 73.4MB. Free memory was 31.5MB in the beginning and 37.5MB in the end (delta: -6.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. [2022-12-13 16:15:31,229 INFO L158 Benchmark]: TraceAbstraction took 517.45ms. Allocated memory is still 73.4MB. Free memory was 36.5MB in the beginning and 39.3MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:15:31,229 INFO L158 Benchmark]: Witness Printer took 2.67ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 38.9MB in the end (delta: 383.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:15:31,231 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 54.5MB. Free memory is still 33.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 743.97ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 36.7MB in the end (delta: 10.2MB). Peak memory consumption was 24.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 50.98ms. Allocated memory is still 73.4MB. Free memory was 36.7MB in the beginning and 33.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.30ms. Allocated memory is still 73.4MB. Free memory was 33.6MB in the beginning and 31.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 311.27ms. Allocated memory is still 73.4MB. Free memory was 31.5MB in the beginning and 37.5MB in the end (delta: -6.0MB). Peak memory consumption was 5.4MB. Max. memory is 16.1GB. * TraceAbstraction took 517.45ms. Allocated memory is still 73.4MB. Free memory was 36.5MB in the beginning and 39.3MB in the end (delta: -2.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.67ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 38.9MB in the end (delta: 383.2kB). 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: 1570]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE191_Integer_Underflow__int_fgets_multiply_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1568] COND TRUE data < 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] data * 2 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1570]: 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: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 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 [2022-12-13 16:15:31,246 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1e6b63bc-a4c6-40c5-9cc8-50e89b90ba77/bin/uautomizer-uyxdKDjOR8/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample