./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh --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 a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 --- 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 [2022-12-14 04:58:00,062 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:58:00,064 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:58:00,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:58:00,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:58:00,084 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:58:00,085 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:58:00,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:58:00,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:58:00,088 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:58:00,089 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:58:00,090 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:58:00,090 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:58:00,091 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:58:00,092 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:58:00,093 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:58:00,094 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:58:00,095 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:58:00,096 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:58:00,098 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:58:00,099 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:58:00,100 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:58:00,101 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:58:00,102 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:58:00,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:58:00,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:58:00,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:58:00,107 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:58:00,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:58:00,108 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:58:00,108 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:58:00,109 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:58:00,110 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:58:00,110 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:58:00,111 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:58:00,112 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:58:00,112 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:58:00,113 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:58:00,113 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:58:00,113 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:58:00,114 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:58:00,115 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 04:58:00,134 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:58:00,134 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:58:00,135 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:58:00,135 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:58:00,141 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:58:00,141 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:58:00,141 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:58:00,142 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:58:00,142 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:58:00,142 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 04:58:00,142 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:58:00,142 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:58:00,143 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 04:58:00,143 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 04:58:00,143 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:58:00,143 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 04:58:00,143 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 04:58:00,144 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 04:58:00,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:58:00,144 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:58:00,145 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 04:58:00,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:58:00,146 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:58:00,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:58:00,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:58:00,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:58:00,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:00,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:58:00,147 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 04:58:00,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:58:00,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:58:00,148 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 04:58:00,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 04:58:00,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:58:00,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:58:00,148 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_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 [2022-12-14 04:58:00,341 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:58:00,362 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:58:00,364 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:58:00,365 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:58:00,366 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:58:00,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:02,945 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:58:03,231 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:58:03,232 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:03,250 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/1e516d208/ea646f6f08b948098ef21aac9e858f44/FLAG89786ef1e [2022-12-14 04:58:03,522 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/1e516d208/ea646f6f08b948098ef21aac9e858f44 [2022-12-14 04:58:03,524 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:58:03,525 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:58:03,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:03,526 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:58:03,528 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:58:03,529 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:03" (1/1) ... [2022-12-14 04:58:03,529 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47d6b742 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:03, skipping insertion in model container [2022-12-14 04:58:03,529 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:03" (1/1) ... [2022-12-14 04:58:03,534 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:58:03,568 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:58:03,780 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:58:04,086 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:58:04,091 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:04,093 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:04,095 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:04,095 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:04,111 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 04:58:04,115 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:58:04,116 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:04,124 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:58:04,136 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:58:04,163 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:58:04,164 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:04,165 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:04,167 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:04,167 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:04,171 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 04:58:04,172 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:58:04,173 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:04,331 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:58:04,331 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04 WrapperNode [2022-12-14 04:58:04,331 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:04,332 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:04,332 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:58:04,333 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:58:04,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,359 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,378 INFO L138 Inliner]: procedures = 500, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-14 04:58:04,379 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:04,380 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:58:04,380 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:58:04,380 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:58:04,386 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,387 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,388 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,389 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,396 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,399 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:58:04,399 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:58:04,400 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:58:04,400 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:58:04,400 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (1/1) ... [2022-12-14 04:58:04,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:04,416 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:58:04,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:58:04,429 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:58:04,463 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 04:58:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 04:58:04,464 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 04:58:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:58:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 04:58:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 04:58:04,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:58:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:58:04,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:58:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:58:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 04:58:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 04:58:04,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 04:58:04,574 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:58:04,575 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:58:04,676 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:58:04,703 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:58:04,703 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:58:04,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:04 BoogieIcfgContainer [2022-12-14 04:58:04,705 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:58:04,708 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:58:04,708 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:58:04,711 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:58:04,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:58:03" (1/3) ... [2022-12-14 04:58:04,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dbc6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:04, skipping insertion in model container [2022-12-14 04:58:04,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:04" (2/3) ... [2022-12-14 04:58:04,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68dbc6e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:04, skipping insertion in model container [2022-12-14 04:58:04,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:04" (3/3) ... [2022-12-14 04:58:04,713 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:04,731 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:58:04,731 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:58:04,763 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:58:04,767 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;@15d48060, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:58:04,768 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:58:04,771 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) [2022-12-14 04:58:04,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 04:58:04,777 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:04,777 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:04,777 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 04:58:04,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:04,781 INFO L85 PathProgramCache]: Analyzing trace with hash -39611802, now seen corresponding path program 1 times [2022-12-14 04:58:04,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 04:58:04,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308967994] [2022-12-14 04:58:04,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:04,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 04:58:04,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:58:04,910 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:58:04,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:58:04,953 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 04:58:04,955 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:58:04,955 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 04:58:04,957 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 04:58:04,957 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 04:58:04,961 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:58:04,964 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:58:04,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:58:04 BoogieIcfgContainer [2022-12-14 04:58:04,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:58:04,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:58:04,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:58:04,982 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:58:04,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:04" (3/4) ... [2022-12-14 04:58:04,985 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:58:04,985 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:58:04,986 INFO L158 Benchmark]: Toolchain (without parser) took 1461.25ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 86.1MB in the beginning and 68.2MB in the end (delta: 17.8MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,987 INFO L158 Benchmark]: CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:58:04,987 INFO L158 Benchmark]: CACSL2BoogieTranslator took 806.07ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 85.7MB in the beginning and 106.8MB in the end (delta: -21.2MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,988 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.80ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 103.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,989 INFO L158 Benchmark]: Boogie Preprocessor took 19.31ms. Allocated memory is still 153.1MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,989 INFO L158 Benchmark]: RCFGBuilder took 306.00ms. Allocated memory is still 153.1MB. Free memory was 101.8MB in the beginning and 87.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,990 INFO L158 Benchmark]: TraceAbstraction took 273.43ms. Allocated memory is still 153.1MB. Free memory was 85.9MB in the beginning and 69.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 04:58:04,990 INFO L158 Benchmark]: Witness Printer took 3.89ms. Allocated memory is still 153.1MB. Free memory was 69.1MB in the beginning and 68.2MB in the end (delta: 854.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:58:04,993 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20ms. Allocated memory is still 123.7MB. Free memory is still 94.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 806.07ms. Allocated memory was 123.7MB in the beginning and 153.1MB in the end (delta: 29.4MB). Free memory was 85.7MB in the beginning and 106.8MB in the end (delta: -21.2MB). Peak memory consumption was 61.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.80ms. Allocated memory is still 153.1MB. Free memory was 106.0MB in the beginning and 103.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.31ms. Allocated memory is still 153.1MB. Free memory was 103.9MB in the beginning and 101.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 306.00ms. Allocated memory is still 153.1MB. Free memory was 101.8MB in the beginning and 87.1MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 273.43ms. Allocated memory is still 153.1MB. Free memory was 85.9MB in the beginning and 69.1MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.89ms. Allocated memory is still 153.1MB. Free memory was 69.1MB in the beginning and 68.2MB in the end (delta: 854.2kB). 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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); [L1582] 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) [L1582] RET printLine("Calling bad()...") VAL [\old(argc)=1073741827, argc=1073741827, argv={1073741829:1073741828}, argv={1073741829:1073741828}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1583] CALL CWE191_Integer_Underflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data < 0 VAL [data=-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, myUnion={7:0}] [L1574] data * 2 VAL [data=-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, myUnion={7:0}] - UnprovableResult [Line: 1574]: 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: 0.2s, 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=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, 0.0s 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 [2022-12-14 04:58:05,010 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh --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 a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 --- 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 [2022-12-14 04:58:06,613 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 04:58:06,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 04:58:06,637 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 04:58:06,638 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 04:58:06,638 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 04:58:06,639 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 04:58:06,640 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 04:58:06,641 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 04:58:06,642 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 04:58:06,643 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 04:58:06,643 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 04:58:06,644 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 04:58:06,644 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 04:58:06,645 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 04:58:06,646 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 04:58:06,646 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 04:58:06,647 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 04:58:06,648 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 04:58:06,649 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 04:58:06,650 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 04:58:06,651 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 04:58:06,652 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 04:58:06,653 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 04:58:06,655 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 04:58:06,655 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 04:58:06,655 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 04:58:06,656 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 04:58:06,656 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 04:58:06,657 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 04:58:06,657 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 04:58:06,658 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 04:58:06,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 04:58:06,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 04:58:06,659 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 04:58:06,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 04:58:06,660 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 04:58:06,660 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 04:58:06,660 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 04:58:06,661 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 04:58:06,661 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 04:58:06,662 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 04:58:06,678 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 04:58:06,678 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 04:58:06,679 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 04:58:06,679 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 04:58:06,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 04:58:06,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 04:58:06,679 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 04:58:06,680 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 04:58:06,680 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 04:58:06,680 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 04:58:06,680 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 04:58:06,680 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 04:58:06,681 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 04:58:06,681 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 04:58:06,682 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 04:58:06,682 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:06,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 04:58:06,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 04:58:06,683 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_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a0cbddd8e25a6e3b38116e03f8f52c69c0e00660fb4ec0212bf11ee637aa2208 [2022-12-14 04:58:06,886 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 04:58:06,901 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 04:58:06,903 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 04:58:06,904 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 04:58:06,904 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 04:58:06,905 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:09,499 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 04:58:09,775 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 04:58:09,775 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:09,794 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/8986efa44/d6bf51dee3c64bd8aff248c12c992c6e/FLAG9aa9480bf [2022-12-14 04:58:09,809 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/data/8986efa44/d6bf51dee3c64bd8aff248c12c992c6e [2022-12-14 04:58:09,811 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 04:58:09,812 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 04:58:09,814 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:09,814 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 04:58:09,817 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 04:58:09,818 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:09" (1/1) ... [2022-12-14 04:58:09,819 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@791344d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:09, skipping insertion in model container [2022-12-14 04:58:09,819 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 04:58:09" (1/1) ... [2022-12-14 04:58:09,826 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 04:58:09,873 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 04:58:10,150 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:58:10,427 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:58:10,431 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:10,432 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:10,433 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:10,433 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:10,451 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 04:58:10,456 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:58:10,457 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:10,470 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 04:58:10,489 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 04:58:10,536 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 04:58:10,543 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:10,544 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 04:58:10,547 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:10,547 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 04:58:10,552 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 04:58:10,554 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 04:58:10,555 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 04:58:10,667 INFO L208 MainTranslator]: Completed translation [2022-12-14 04:58:10,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10 WrapperNode [2022-12-14 04:58:10,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 04:58:10,668 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:10,668 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 04:58:10,669 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 04:58:10,673 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,694 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,717 INFO L138 Inliner]: procedures = 505, calls = 66, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 58 [2022-12-14 04:58:10,718 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 04:58:10,718 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 04:58:10,718 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 04:58:10,718 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 04:58:10,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,728 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,728 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,734 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,736 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,740 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 04:58:10,740 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 04:58:10,740 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 04:58:10,741 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 04:58:10,741 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (1/1) ... [2022-12-14 04:58:10,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 04:58:10,754 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 04:58:10,764 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 04:58:10,766 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 04:58:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 04:58:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 04:58:10,790 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 04:58:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 04:58:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 04:58:10,790 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 04:58:10,791 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 04:58:10,791 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 04:58:10,905 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 04:58:10,907 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 04:58:11,023 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 04:58:11,027 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 04:58:11,027 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 04:58:11,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:11 BoogieIcfgContainer [2022-12-14 04:58:11,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 04:58:11,033 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 04:58:11,033 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 04:58:11,036 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 04:58:11,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 04:58:09" (1/3) ... [2022-12-14 04:58:11,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504445a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:11, skipping insertion in model container [2022-12-14 04:58:11,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 04:58:10" (2/3) ... [2022-12-14 04:58:11,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1504445a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 04:58:11, skipping insertion in model container [2022-12-14 04:58:11,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:11" (3/3) ... [2022-12-14 04:58:11,037 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_34_bad.i [2022-12-14 04:58:11,051 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 04:58:11,051 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 04:58:11,086 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 04:58:11,091 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;@74936f66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 04:58:11,091 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 04:58:11,095 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) [2022-12-14 04:58:11,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 04:58:11,103 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 04:58:11,104 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 04:58:11,104 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 04:58:11,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 04:58:11,110 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-14 04:58:11,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 04:58:11,122 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1632284950] [2022-12-14 04:58:11,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 04:58:11,123 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 [2022-12-14 04:58:11,123 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 04:58:11,124 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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) [2022-12-14 04:58:11,125 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:58:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:58:11,250 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 04:58:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 04:58:11,320 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 04:58:11,322 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 04:58:11,323 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 04:58:11,325 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 04:58:11,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:58:11,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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 [2022-12-14 04:58:11,532 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 04:58:11,539 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 04:58:11,586 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 04:58:11 BoogieIcfgContainer [2022-12-14 04:58:11,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 04:58:11,587 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 04:58:11,587 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 04:58:11,587 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 04:58:11,588 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 04:58:11" (3/4) ... [2022-12-14 04:58:11,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 04:58:11,593 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 04:58:11,594 INFO L158 Benchmark]: Toolchain (without parser) took 1781.15ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.4MB in the beginning and 30.3MB in the end (delta: 8.1MB). Peak memory consumption was 23.7MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,595 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory is still 26.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 04:58:11,595 INFO L158 Benchmark]: CACSL2BoogieTranslator took 854.24ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.3MB in the beginning and 49.9MB in the end (delta: -11.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.35ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,597 INFO L158 Benchmark]: Boogie Preprocessor took 21.70ms. Allocated memory is still 75.5MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,597 INFO L158 Benchmark]: RCFGBuilder took 288.41ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 30.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,598 INFO L158 Benchmark]: TraceAbstraction took 552.68ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 30.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,599 INFO L158 Benchmark]: Witness Printer took 5.76ms. Allocated memory is still 75.5MB. Free memory was 30.6MB in the beginning and 30.3MB in the end (delta: 335.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 04:58:11,603 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory is still 26.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 854.24ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 38.3MB in the beginning and 49.9MB in the end (delta: -11.7MB). Peak memory consumption was 24.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.35ms. Allocated memory is still 75.5MB. Free memory was 49.9MB in the beginning and 47.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.70ms. Allocated memory is still 75.5MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.41ms. Allocated memory is still 75.5MB. Free memory was 44.8MB in the beginning and 30.3MB in the end (delta: 14.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 552.68ms. Allocated memory is still 75.5MB. Free memory was 48.8MB in the beginning and 30.6MB in the end (delta: 18.2MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 5.76ms. Allocated memory is still 75.5MB. Free memory was 30.6MB in the beginning and 30.3MB in the end (delta: 335.0kB). 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: 1574]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1562. 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] [L1582] 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) [L1582] 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] [L1583] CALL CWE191_Integer_Underflow__int_fgets_multiply_34_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_multiply_34_unionType myUnion; [L1557] data = 0 [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1560] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1562] data = atoi(inputBuffer) [L1559] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1569] myUnion.unionFirst = data [L1571] EXPR myUnion.unionSecond [L1571] int data = myUnion.unionSecond; [L1572] COND TRUE data < 0 VAL [data=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={15:0}] [L1574] data * 2 VAL [data=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, myUnion={15:0}] - UnprovableResult [Line: 1574]: 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: 0.5s, 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=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 [2022-12-14 04:58:11,621 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d185dc0-7042-43f6-8c12-cee0d983a5d8/bin/utaipan-gh47qXpMRh/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