./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_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_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:26:59,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:26:59,408 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:26:59,427 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:26:59,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:26:59,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:26:59,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:26:59,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:26:59,433 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:26:59,434 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:26:59,435 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:26:59,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:26:59,437 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:26:59,438 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:26:59,439 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:26:59,440 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:26:59,441 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:26:59,442 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:26:59,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:26:59,445 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:26:59,447 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:26:59,448 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:26:59,449 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:26:59,450 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:26:59,453 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:26:59,454 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:26:59,454 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:26:59,455 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:26:59,455 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:26:59,456 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:26:59,457 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:26:59,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:26:59,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:26:59,459 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:26:59,460 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:26:59,460 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:26:59,461 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:26:59,461 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:26:59,461 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:26:59,462 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:26:59,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:26:59,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 15:26:59,487 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:26:59,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:26:59,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:26:59,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:26:59,489 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:26:59,489 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:26:59,490 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:26:59,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:26:59,490 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:26:59,490 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:26:59,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:26:59,491 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 15:26:59,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:26:59,491 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:26:59,491 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:26:59,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:26:59,492 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:26:59,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:26:59,492 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:26:59,492 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:26:59,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:26:59,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:26:59,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:26:59,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:26:59,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:26:59,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:26:59,495 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:26:59,495 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:26:59,495 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:26:59,495 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 [2022-12-13 15:26:59,696 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:26:59,715 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:26:59,717 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:26:59,718 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:26:59,719 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:26:59,720 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:02,272 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:27:02,545 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:27:02,545 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:02,563 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/50c8b7b96/64d70e5e57054d7b9c5d2511d1072708/FLAG38458a1ab [2022-12-13 15:27:02,576 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/50c8b7b96/64d70e5e57054d7b9c5d2511d1072708 [2022-12-13 15:27:02,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:27:02,580 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:27:02,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:02,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:27:02,585 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:27:02,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:02" (1/1) ... [2022-12-13 15:27:02,586 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c9c50d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:02, skipping insertion in model container [2022-12-13 15:27:02,586 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:02" (1/1) ... [2022-12-13 15:27:02,592 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:27:02,634 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:27:02,956 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:27:03,300 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:27:03,305 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:03,307 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:03,310 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:03,310 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:03,334 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 15:27:03,340 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:27:03,341 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:03,349 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:27:03,376 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:27:03,428 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:27:03,430 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:03,432 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:03,434 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:03,435 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:03,440 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 15:27:03,442 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:27:03,443 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:03,526 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:27:03,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03 WrapperNode [2022-12-13 15:27:03,526 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:03,527 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:03,527 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:27:03,528 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:27:03,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,553 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,574 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-12-13 15:27:03,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:03,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:27:03,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:27:03,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:27:03,582 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,583 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,585 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,586 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,591 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,593 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,594 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:27:03,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:27:03,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:27:03,598 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:27:03,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (1/1) ... [2022-12-13 15:27:03,604 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:03,613 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:03,623 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:27:03,624 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 15:27:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:27:03,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 15:27:03,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 15:27:03,757 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:27:03,759 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:27:03,869 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:27:03,875 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:27:03,875 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:27:03,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:03 BoogieIcfgContainer [2022-12-13 15:27:03,877 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:27:03,879 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:27:03,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:27:03,882 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:27:03,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:27:02" (1/3) ... [2022-12-13 15:27:03,883 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe76dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:03, skipping insertion in model container [2022-12-13 15:27:03,883 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:03" (2/3) ... [2022-12-13 15:27:03,884 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fe76dc4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:03, skipping insertion in model container [2022-12-13 15:27:03,884 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:03" (3/3) ... [2022-12-13 15:27:03,885 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:03,903 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:27:03,904 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:27:03,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:27:03,946 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@43dab328, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:27:03,946 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:27:03,950 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:27:03,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:27:03,955 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:03,956 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:03,956 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:27:03,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:03,960 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 15:27:03,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:03,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137646987] [2022-12-13 15:27:03,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:03,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:04,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:04,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 15:27:04,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:04,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:04,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 15:27:04,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137646987] [2022-12-13 15:27:04,268 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137646987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:04,268 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:04,268 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 15:27:04,269 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063849108] [2022-12-13 15:27:04,269 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:04,272 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 15:27:04,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 15:27:04,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 15:27:04,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 15:27:04,296 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:27:04,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:27:04,337 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 15:27:04,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 15:27:04,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 15:27:04,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:27:04,344 INFO L225 Difference]: With dead ends: 24 [2022-12-13 15:27:04,344 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:27:04,346 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 15:27:04,348 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 22 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:27:04,349 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 46 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:27:04,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:27:04,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:27:04,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:27:04,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 15:27:04,375 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 15:27:04,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:27:04,376 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 15:27:04,376 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:27:04,376 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 15:27:04,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 15:27:04,377 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:04,377 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:04,377 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 15:27:04,377 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:27:04,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:04,378 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 15:27:04,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 15:27:04,378 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1888185304] [2022-12-13 15:27:04,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:04,378 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 15:27:04,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:27:04,399 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:27:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:27:04,423 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 15:27:04,423 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:27:04,424 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 15:27:04,426 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 15:27:04,426 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 15:27:04,429 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:27:04,431 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:27:04,447 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:27:04 BoogieIcfgContainer [2022-12-13 15:27:04,447 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:27:04,448 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:27:04,448 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:27:04,448 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:27:04,448 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:03" (3/4) ... [2022-12-13 15:27:04,451 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:27:04,451 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:27:04,452 INFO L158 Benchmark]: Toolchain (without parser) took 1871.67ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 68.5MB in the beginning and 60.5MB in the end (delta: 8.0MB). Peak memory consumption was 38.4MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,452 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:04,452 INFO L158 Benchmark]: CACSL2BoogieTranslator took 945.62ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 68.2MB in the beginning and 71.5MB in the end (delta: -3.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,453 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.15ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 68.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,453 INFO L158 Benchmark]: Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 68.7MB in the beginning and 67.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,453 INFO L158 Benchmark]: RCFGBuilder took 278.90ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 102.4MB in the end (delta: -35.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,454 INFO L158 Benchmark]: TraceAbstraction took 568.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 60.5MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 15:27:04,454 INFO L158 Benchmark]: Witness Printer took 3.23ms. Allocated memory is still 142.6MB. Free memory is still 60.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:04,456 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 113.2MB. Free memory is still 88.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 945.62ms. Allocated memory was 113.2MB in the beginning and 142.6MB in the end (delta: 29.4MB). Free memory was 68.2MB in the beginning and 71.5MB in the end (delta: -3.3MB). Peak memory consumption was 31.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.15ms. Allocated memory is still 142.6MB. Free memory was 71.5MB in the beginning and 68.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.61ms. Allocated memory is still 142.6MB. Free memory was 68.7MB in the beginning and 67.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 278.90ms. Allocated memory is still 142.6MB. Free memory was 67.3MB in the beginning and 102.4MB in the end (delta: -35.2MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * TraceAbstraction took 568.25ms. Allocated memory is still 142.6MB. Free memory was 101.2MB in the beginning and 60.5MB in the end (delta: 40.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Witness Printer took 3.23ms. Allocated memory is still 142.6MB. Free memory is still 60.5MB. 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. 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] [L1576] 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) [L1576] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483650:2147483653}, argv={2147483650:2147483653}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] CALL funcPtr(data) [L1551] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 23 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 22 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 15:27:04,469 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 15:27:06,150 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 15:27:06,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 15:27:06,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 15:27:06,172 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 15:27:06,173 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 15:27:06,174 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 15:27:06,176 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 15:27:06,177 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 15:27:06,178 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 15:27:06,179 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 15:27:06,180 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 15:27:06,180 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 15:27:06,181 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 15:27:06,182 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 15:27:06,183 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 15:27:06,184 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 15:27:06,185 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 15:27:06,187 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 15:27:06,188 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 15:27:06,190 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 15:27:06,191 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 15:27:06,192 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 15:27:06,193 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 15:27:06,197 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 15:27:06,197 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 15:27:06,197 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 15:27:06,198 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 15:27:06,199 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 15:27:06,199 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 15:27:06,200 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 15:27:06,205 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 15:27:06,206 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 15:27:06,207 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 15:27:06,208 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 15:27:06,208 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 15:27:06,208 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 15:27:06,208 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 15:27:06,208 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 15:27:06,209 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 15:27:06,209 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 15:27:06,210 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 15:27:06,225 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 15:27:06,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 15:27:06,225 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 15:27:06,225 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 15:27:06,226 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 15:27:06,226 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 15:27:06,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 15:27:06,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 15:27:06,226 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 15:27:06,226 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 15:27:06,227 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 15:27:06,228 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:06,228 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 15:27:06,228 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 15:27:06,229 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f87fdaa0be7d4d5d31e55ae2d191859e9a8e200f30f8118e184cc657927d4de5 [2022-12-13 15:27:06,431 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 15:27:06,447 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 15:27:06,448 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 15:27:06,449 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 15:27:06,449 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 15:27:06,450 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:09,020 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 15:27:09,299 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 15:27:09,300 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:09,326 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/882f5866e/9adb3ded56f2442c84dfcd7ca979ffbf/FLAGe84621964 [2022-12-13 15:27:09,337 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/data/882f5866e/9adb3ded56f2442c84dfcd7ca979ffbf [2022-12-13 15:27:09,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 15:27:09,340 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 15:27:09,341 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:09,341 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 15:27:09,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 15:27:09,345 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:09" (1/1) ... [2022-12-13 15:27:09,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e6403ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:09, skipping insertion in model container [2022-12-13 15:27:09,346 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 03:27:09" (1/1) ... [2022-12-13 15:27:09,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 15:27:09,386 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 15:27:09,638 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:27:09,930 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:27:09,935 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:09,937 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:09,939 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:09,940 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:09,958 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 15:27:09,964 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:27:09,965 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:09,978 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 15:27:09,996 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 15:27:10,043 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 15:27:10,044 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:10,045 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 15:27:10,048 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:10,048 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 15:27:10,053 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 15:27:10,054 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 15:27:10,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 15:27:10,153 INFO L208 MainTranslator]: Completed translation [2022-12-13 15:27:10,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10 WrapperNode [2022-12-13 15:27:10,154 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 15:27:10,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:10,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 15:27:10,155 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 15:27:10,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,178 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,194 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 56 [2022-12-13 15:27:10,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 15:27:10,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 15:27:10,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 15:27:10,195 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 15:27:10,202 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,204 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,210 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,212 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,213 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,214 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,217 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 15:27:10,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 15:27:10,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 15:27:10,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 15:27:10,218 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (1/1) ... [2022-12-13 15:27:10,223 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 15:27:10,233 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 15:27:10,243 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 15:27:10,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 15:27:10,276 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 15:27:10,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 15:27:10,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 15:27:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 15:27:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 15:27:10,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 15:27:10,412 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 15:27:10,414 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 15:27:10,532 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 15:27:10,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 15:27:10,541 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 15:27:10,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:10 BoogieIcfgContainer [2022-12-13 15:27:10,543 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 15:27:10,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 15:27:10,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 15:27:10,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 15:27:10,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 03:27:09" (1/3) ... [2022-12-13 15:27:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea7c2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:10, skipping insertion in model container [2022-12-13 15:27:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 03:27:10" (2/3) ... [2022-12-13 15:27:10,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ea7c2a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 03:27:10, skipping insertion in model container [2022-12-13 15:27:10,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:10" (3/3) ... [2022-12-13 15:27:10,551 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_44_bad.i [2022-12-13 15:27:10,570 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 15:27:10,570 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 15:27:10,616 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 15:27:10,623 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@c875090, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 15:27:10,623 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 15:27:10,632 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 15:27:10,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 15:27:10,640 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:10,640 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:10,641 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:27:10,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:10,646 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 15:27:10,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:27:10,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1521196789] [2022-12-13 15:27:10,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:10,666 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:27:10,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:27:10,667 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:27:10,668 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 15:27:10,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 15:27:10,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 15:27:10,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 15:27:10,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 15:27:10,803 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 15:27:10,804 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 15:27:10,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1521196789] [2022-12-13 15:27:10,805 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1521196789] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 15:27:10,805 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 15:27:10,805 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 15:27:10,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945399135] [2022-12-13 15:27:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 15:27:10,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 15:27:10,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 15:27:10,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 15:27:10,841 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:27:10,843 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 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) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:27:10,857 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 15:27:10,857 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 15:27:10,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 15:27:10,858 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 15:27:10,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 15:27:10,862 INFO L225 Difference]: With dead ends: 24 [2022-12-13 15:27:10,863 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 15:27:10,865 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 15:27:10,868 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 15:27:10,869 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 15:27:10,881 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 15:27:10,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 15:27:10,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 15:27:10,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 15:27:10,892 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 15:27:10,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 15:27:10,893 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 15:27:10,893 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 15:27:10,893 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 15:27:10,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 15:27:10,894 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 15:27:10,894 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 15:27:10,904 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 15:27:11,095 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:27:11,095 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 15:27:11,096 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 15:27:11,096 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 15:27:11,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 15:27:11,097 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [208168339] [2022-12-13 15:27:11,097 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 15:27:11,097 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:27:11,097 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 15:27:11,098 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 15:27:11,099 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 15:27:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:27:11,183 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 15:27:11,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 15:27:11,245 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 15:27:11,246 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 15:27:11,247 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 15:27:11,249 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 15:27:11,263 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 15:27:11,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 15:27:11,463 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 15:27:11,473 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 15:27:11,506 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 03:27:11 BoogieIcfgContainer [2022-12-13 15:27:11,506 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 15:27:11,507 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 15:27:11,507 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 15:27:11,507 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 15:27:11,507 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 03:27:10" (3/4) ... [2022-12-13 15:27:11,510 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 15:27:11,510 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 15:27:11,511 INFO L158 Benchmark]: Toolchain (without parser) took 2170.06ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 44.5MB in the beginning and 39.3MB in the end (delta: 5.2MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,511 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:11,511 INFO L158 Benchmark]: CACSL2BoogieTranslator took 812.51ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 44.3MB in the beginning and 58.3MB in the end (delta: -14.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,512 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.01ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 55.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,512 INFO L158 Benchmark]: Boogie Preprocessor took 22.32ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,512 INFO L158 Benchmark]: RCFGBuilder took 325.91ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 66.8MB in the end (delta: -13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,513 INFO L158 Benchmark]: TraceAbstraction took 960.36ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 39.3MB in the end (delta: 26.9MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. [2022-12-13 15:27:11,513 INFO L158 Benchmark]: Witness Printer took 3.50ms. Allocated memory is still 94.4MB. Free memory is still 39.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 15:27:11,515 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 26.9MB in the beginning and 26.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 812.51ms. Allocated memory was 77.6MB in the beginning and 94.4MB in the end (delta: 16.8MB). Free memory was 44.3MB in the beginning and 58.3MB in the end (delta: -14.0MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.01ms. Allocated memory is still 94.4MB. Free memory was 58.3MB in the beginning and 55.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.32ms. Allocated memory is still 94.4MB. Free memory was 55.2MB in the beginning and 53.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 325.91ms. Allocated memory is still 94.4MB. Free memory was 53.2MB in the beginning and 66.8MB in the end (delta: -13.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 960.36ms. Allocated memory is still 94.4MB. Free memory was 66.2MB in the beginning and 39.3MB in the end (delta: 26.9MB). Peak memory consumption was 25.4MB. Max. memory is 16.1GB. * Witness Printer took 3.50ms. Allocated memory is still 94.4MB. Free memory is still 39.3MB. 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: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1564. 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] [L1576] 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) [L1576] 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] [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1562] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1564] data = atoi(inputBuffer) [L1561] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] CALL funcPtr(data) [L1551] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1551]: 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: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 15:27:11,528 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_41f31135-2baa-4f39-82ca-2b4d5214aca1/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample