./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 062da61e5fdd3ead1d11c26be7e8f8fa9035a37b165d89a86763ed8c1da36c57 --- 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 12:44:13,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:44:13,364 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:44:13,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:44:13,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:44:13,382 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:44:13,384 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:44:13,385 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:44:13,386 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:44:13,387 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:44:13,388 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:44:13,389 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:44:13,389 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:44:13,390 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:44:13,391 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:44:13,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:44:13,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:44:13,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:44:13,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:44:13,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:44:13,398 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:44:13,400 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:44:13,401 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:44:13,401 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:44:13,405 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:44:13,405 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:44:13,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:44:13,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:44:13,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:44:13,407 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:44:13,407 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:44:13,408 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:44:13,409 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:44:13,409 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:44:13,410 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:44:13,411 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:44:13,411 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:44:13,411 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:44:13,411 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:44:13,412 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:44:13,413 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:44:13,414 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 12:44:13,447 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:44:13,448 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:44:13,448 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:44:13,448 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:44:13,449 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:44:13,449 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:44:13,449 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:44:13,449 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 12:44:13,450 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:44:13,451 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 12:44:13,451 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 12:44:13,451 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 12:44:13,452 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:44:13,452 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:44:13,452 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 12:44:13,452 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:44:13,452 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:44:13,452 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:44:13,453 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:44:13,453 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:44:13,454 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:13,454 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:44:13,454 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 12:44:13,454 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:44:13,454 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:44:13,454 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 12:44:13,455 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 12:44:13,455 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:44:13,455 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:44:13,455 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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062da61e5fdd3ead1d11c26be7e8f8fa9035a37b165d89a86763ed8c1da36c57 [2022-12-14 12:44:13,615 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:44:13,635 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:44:13,638 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:44:13,639 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:44:13,639 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:44:13,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:16,169 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:44:16,388 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:44:16,388 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:16,401 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/81e3d126a/d15018fac2664434ad3452d9a0a7d61d/FLAGa23199fd2 [2022-12-14 12:44:16,735 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/81e3d126a/d15018fac2664434ad3452d9a0a7d61d [2022-12-14 12:44:16,738 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:44:16,739 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:44:16,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:16,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:44:16,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:44:16,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:16" (1/1) ... [2022-12-14 12:44:16,747 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63d48f67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:16, skipping insertion in model container [2022-12-14 12:44:16,747 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:16" (1/1) ... [2022-12-14 12:44:16,755 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:44:16,789 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:44:17,018 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:44:17,349 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:44:17,353 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:17,354 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:17,356 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:17,357 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:17,372 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:44:17,375 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:44:17,377 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:17,385 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:44:17,398 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:44:17,429 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:44:17,430 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:17,431 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:17,432 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:17,433 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:17,436 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:44:17,437 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:44:17,438 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:17,550 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:44:17,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17 WrapperNode [2022-12-14 12:44:17,551 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:17,551 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:17,551 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:44:17,551 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:44:17,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,572 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,588 INFO L138 Inliner]: procedures = 501, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 66 [2022-12-14 12:44:17,588 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:17,588 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:44:17,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:44:17,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:44:17,595 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,597 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,598 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,603 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:44:17,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:44:17,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:44:17,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:44:17,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (1/1) ... [2022-12-14 12:44:17,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:17,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:17,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:44:17,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:44:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 12:44:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:44:17,662 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:44:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:44:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 12:44:17,662 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:44:17,663 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-14 12:44:17,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 12:44:17,776 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:44:17,777 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:44:17,883 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:44:17,902 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:44:17,903 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:44:17,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:17 BoogieIcfgContainer [2022-12-14 12:44:17,904 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:44:17,906 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:44:17,906 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:44:17,908 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:44:17,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:44:16" (1/3) ... [2022-12-14 12:44:17,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92e13be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:17, skipping insertion in model container [2022-12-14 12:44:17,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:17" (2/3) ... [2022-12-14 12:44:17,909 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@92e13be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:17, skipping insertion in model container [2022-12-14 12:44:17,909 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:17" (3/3) ... [2022-12-14 12:44:17,910 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:17,923 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:44:17,923 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:44:17,956 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:44:17,960 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;@6e0cf03c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:44:17,960 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:44:17,963 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 12:44:17,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 12:44:17,969 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:17,969 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:17,969 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:44:17,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:17,973 INFO L85 PathProgramCache]: Analyzing trace with hash 743414824, now seen corresponding path program 1 times [2022-12-14 12:44:17,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 12:44:17,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254296074] [2022-12-14 12:44:17,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:17,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 12:44:18,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:44:18,082 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:44:18,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:44:18,130 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 12:44:18,132 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:44:18,133 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 12:44:18,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 12:44:18,135 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 12:44:18,138 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 12:44:18,141 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:44:18,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:44:18 BoogieIcfgContainer [2022-12-14 12:44:18,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:44:18,160 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:44:18,160 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:44:18,160 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:44:18,161 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:17" (3/4) ... [2022-12-14 12:44:18,164 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:44:18,164 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:44:18,165 INFO L158 Benchmark]: Toolchain (without parser) took 1425.63ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 95.3MB in the beginning and 134.3MB in the end (delta: -39.1MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,165 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:18,166 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.24ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 94.8MB in the beginning and 114.9MB in the end (delta: -20.2MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,166 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.80ms. Allocated memory is still 172.0MB. Free memory was 114.9MB in the beginning and 112.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,167 INFO L158 Benchmark]: Boogie Preprocessor took 18.60ms. Allocated memory is still 172.0MB. Free memory was 112.1MB in the beginning and 110.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,167 INFO L158 Benchmark]: RCFGBuilder took 297.00ms. Allocated memory is still 172.0MB. Free memory was 110.7MB in the beginning and 94.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,168 INFO L158 Benchmark]: TraceAbstraction took 253.65ms. Allocated memory is still 172.0MB. Free memory was 94.0MB in the beginning and 134.3MB in the end (delta: -40.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. [2022-12-14 12:44:18,168 INFO L158 Benchmark]: Witness Printer took 3.97ms. Allocated memory is still 172.0MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:18,171 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 132.1MB. Free memory is still 99.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.24ms. Allocated memory was 132.1MB in the beginning and 172.0MB in the end (delta: 39.8MB). Free memory was 94.8MB in the beginning and 114.9MB in the end (delta: -20.2MB). Peak memory consumption was 44.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.80ms. Allocated memory is still 172.0MB. Free memory was 114.9MB in the beginning and 112.1MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.60ms. Allocated memory is still 172.0MB. Free memory was 112.1MB in the beginning and 110.7MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.00ms. Allocated memory is still 172.0MB. Free memory was 110.7MB in the beginning and 94.7MB in the end (delta: 16.1MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 253.65ms. Allocated memory is still 172.0MB. Free memory was 94.0MB in the beginning and 134.3MB in the end (delta: -40.4MB). Peak memory consumption was 22.3MB. Max. memory is 16.1GB. * Witness Printer took 3.97ms. Allocated memory is still 172.0MB. Free memory is still 134.3MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1584]: 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); [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=1073741828, argc=1073741828, argv={1073741831:1073741829}, argv={1073741831:1073741829}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_multiply_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_multiply_67_structType myStruct; [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] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1582] 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, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] [L1584] 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, myStruct={6:0}, unknown-#in~myStruct!structFirst-unknown=-1073741825] - UnprovableResult [Line: 1584]: 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 12:44:18,185 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 062da61e5fdd3ead1d11c26be7e8f8fa9035a37b165d89a86763ed8c1da36c57 --- 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 12:44:19,961 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 12:44:19,962 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 12:44:19,981 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 12:44:19,981 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 12:44:19,982 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 12:44:19,983 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 12:44:19,985 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 12:44:19,986 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 12:44:19,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 12:44:19,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 12:44:19,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 12:44:19,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 12:44:19,990 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 12:44:19,991 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 12:44:19,992 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 12:44:19,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 12:44:19,994 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 12:44:19,996 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 12:44:19,998 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 12:44:19,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 12:44:20,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 12:44:20,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 12:44:20,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 12:44:20,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 12:44:20,005 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 12:44:20,006 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 12:44:20,006 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 12:44:20,007 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 12:44:20,008 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 12:44:20,008 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 12:44:20,014 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 12:44:20,015 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 12:44:20,016 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 12:44:20,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 12:44:20,017 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 12:44:20,018 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 12:44:20,018 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 12:44:20,018 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 12:44:20,019 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 12:44:20,020 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 12:44:20,020 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 12:44:20,042 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 12:44:20,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 12:44:20,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 12:44:20,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 12:44:20,043 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 12:44:20,043 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 12:44:20,044 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 12:44:20,044 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 12:44:20,044 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 12:44:20,044 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 12:44:20,044 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 12:44:20,044 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 12:44:20,045 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 12:44:20,045 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 12:44:20,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 12:44:20,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:20,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 12:44:20,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 12:44:20,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 12:44:20,048 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_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 062da61e5fdd3ead1d11c26be7e8f8fa9035a37b165d89a86763ed8c1da36c57 [2022-12-14 12:44:20,281 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 12:44:20,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 12:44:20,300 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 12:44:20,301 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 12:44:20,301 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 12:44:20,302 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:22,817 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 12:44:23,087 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 12:44:23,087 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:23,106 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/99169faf1/3670bc8a16834daca81f5f1163b622d1/FLAG091b906a1 [2022-12-14 12:44:23,120 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/data/99169faf1/3670bc8a16834daca81f5f1163b622d1 [2022-12-14 12:44:23,122 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 12:44:23,124 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 12:44:23,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:23,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 12:44:23,128 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 12:44:23,129 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,129 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@379dad38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23, skipping insertion in model container [2022-12-14 12:44:23,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 12:44:23,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 12:44:23,396 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:44:23,666 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:44:23,670 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:23,671 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:23,673 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:23,673 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:23,688 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:44:23,690 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:44:23,693 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:23,703 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 12:44:23,717 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 12:44:23,750 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 12:44:23,757 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:23,758 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 12:44:23,760 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:23,760 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 12:44:23,764 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 12:44:23,765 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 12:44:23,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 12:44:23,868 INFO L208 MainTranslator]: Completed translation [2022-12-14 12:44:23,869 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23 WrapperNode [2022-12-14 12:44:23,869 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 12:44:23,869 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:23,869 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 12:44:23,870 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 12:44:23,875 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,892 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,907 INFO L138 Inliner]: procedures = 506, calls = 71, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 65 [2022-12-14 12:44:23,907 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 12:44:23,908 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 12:44:23,908 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 12:44:23,908 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 12:44:23,915 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,919 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,919 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,927 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,929 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,932 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,933 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,937 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 12:44:23,938 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 12:44:23,938 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 12:44:23,938 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 12:44:23,939 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (1/1) ... [2022-12-14 12:44:23,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 12:44:23,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 12:44:23,966 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 12:44:23,968 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 12:44:24,000 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 12:44:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 12:44:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 12:44:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 12:44:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 12:44:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 12:44:24,001 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 12:44:24,001 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 12:44:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-14 12:44:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 12:44:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-14 12:44:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 12:44:24,002 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 12:44:24,135 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 12:44:24,137 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 12:44:24,294 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 12:44:24,300 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 12:44:24,300 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 12:44:24,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:24 BoogieIcfgContainer [2022-12-14 12:44:24,302 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 12:44:24,305 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 12:44:24,305 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 12:44:24,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 12:44:24,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 12:44:23" (1/3) ... [2022-12-14 12:44:24,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a051c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:24, skipping insertion in model container [2022-12-14 12:44:24,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 12:44:23" (2/3) ... [2022-12-14 12:44:24,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a051c79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 12:44:24, skipping insertion in model container [2022-12-14 12:44:24,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:24" (3/3) ... [2022-12-14 12:44:24,311 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_67_bad.i [2022-12-14 12:44:24,329 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 12:44:24,329 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 12:44:24,377 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 12:44:24,383 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;@f20bc6b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 12:44:24,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 12:44:24,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 25 states, 18 states have (on average 1.2777777777777777) internal successors, (23), 21 states have internal predecessors, (23), 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 12:44:24,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-14 12:44:24,394 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 12:44:24,395 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 12:44:24,395 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 12:44:24,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 12:44:24,401 INFO L85 PathProgramCache]: Analyzing trace with hash -83245182, now seen corresponding path program 1 times [2022-12-14 12:44:24,413 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 12:44:24,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1762074473] [2022-12-14 12:44:24,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 12:44:24,414 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 12:44:24,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 12:44:24,415 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 12:44:24,416 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 12:44:24,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:44:24,577 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 12:44:24,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 12:44:24,695 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 12:44:24,697 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 12:44:24,698 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 12:44:24,700 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 12:44:24,721 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 12:44:24,901 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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 12:44:24,905 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 12:44:24,909 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 12:44:24,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 12:44:24 BoogieIcfgContainer [2022-12-14 12:44:24,934 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 12:44:24,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 12:44:24,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 12:44:24,934 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 12:44:24,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 12:44:24" (3/4) ... [2022-12-14 12:44:24,938 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 12:44:24,938 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 12:44:24,939 INFO L158 Benchmark]: Toolchain (without parser) took 1815.23ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.2MB in the beginning and 51.5MB in the end (delta: -9.3MB). Peak memory consumption was 7.9MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,940 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 48.2MB. Free memory was 26.6MB in the beginning and 26.6MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:24,940 INFO L158 Benchmark]: CACSL2BoogieTranslator took 744.27ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 44.8MB in the end (delta: -2.8MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.91ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 41.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,941 INFO L158 Benchmark]: Boogie Preprocessor took 29.37ms. Allocated memory is still 81.8MB. Free memory was 41.4MB in the beginning and 39.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,942 INFO L158 Benchmark]: RCFGBuilder took 364.55ms. Allocated memory is still 81.8MB. Free memory was 39.3MB in the beginning and 48.1MB in the end (delta: -8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,942 INFO L158 Benchmark]: TraceAbstraction took 629.13ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 51.5MB in the end (delta: -4.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2022-12-14 12:44:24,942 INFO L158 Benchmark]: Witness Printer took 3.78ms. Allocated memory is still 81.8MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 12:44:24,945 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 was 26.6MB in the beginning and 26.6MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 744.27ms. Allocated memory was 67.1MB in the beginning and 81.8MB in the end (delta: 14.7MB). Free memory was 42.0MB in the beginning and 44.8MB in the end (delta: -2.8MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.91ms. Allocated memory is still 81.8MB. Free memory was 44.8MB in the beginning and 41.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.37ms. Allocated memory is still 81.8MB. Free memory was 41.4MB in the beginning and 39.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 364.55ms. Allocated memory is still 81.8MB. Free memory was 39.3MB in the beginning and 48.1MB in the end (delta: -8.8MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 629.13ms. Allocated memory is still 81.8MB. Free memory was 47.2MB in the beginning and 51.5MB in the end (delta: -4.4MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Witness Printer took 3.78ms. Allocated memory is still 81.8MB. Free memory is still 51.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1584]: 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] [L1575] 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) [L1575] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={18:13}, argv={18:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1576] CALL CWE191_Integer_Underflow__int_fgets_multiply_67_bad() [L1555] int data; [L1556] CWE191_Integer_Underflow__int_fgets_multiply_67_structType myStruct; [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] myStruct.structFirst = data [L1570] CALL CWE191_Integer_Underflow__int_fgets_multiply_67b_badSink(myStruct) [L1581] EXPR myStruct.structFirst [L1581] int data = myStruct.structFirst; [L1582] 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, myStruct={7:0}, unknown-#in~myStruct!structFirst-unknown=-2147483648] [L1584] 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, myStruct={7:0}, unknown-#in~myStruct!structFirst-unknown=-2147483648] - UnprovableResult [Line: 1584]: 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, 25 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=25occurred 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 12:44:24,961 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dd7fba88-8ea6-4f2f-8806-36b70c61bb07/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