./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:54:45,403 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:54:45,405 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:54:45,422 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:54:45,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:54:45,423 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:54:45,425 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:54:45,426 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:54:45,428 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:54:45,428 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:54:45,429 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:54:45,430 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:54:45,431 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:54:45,431 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:54:45,432 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:54:45,433 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:54:45,434 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:54:45,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:54:45,436 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:54:45,438 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:54:45,439 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:54:45,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:54:45,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:54:45,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:54:45,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:54:45,446 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:54:45,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:54:45,447 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:54:45,447 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:54:45,448 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:54:45,448 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:54:45,449 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:54:45,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:54:45,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:54:45,451 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:54:45,451 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:54:45,452 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:54:45,452 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:54:45,452 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:54:45,453 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:54:45,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:54:45,454 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:54:45,474 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:54:45,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:54:45,474 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:54:45,474 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:54:45,475 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:54:45,475 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:54:45,476 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:54:45,476 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:54:45,476 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:54:45,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:54:45,476 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:54:45,477 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:54:45,478 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:54:45,478 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:54:45,478 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:54:45,478 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:54:45,478 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:54:45,478 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:54:45,479 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:54:45,479 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:54:45,480 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:54:45,480 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:54:45,480 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:54:45,480 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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef [2022-12-13 16:54:45,660 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:54:45,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:54:45,677 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:54:45,678 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:54:45,679 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:54:45,680 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:48,267 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:54:48,549 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:54:48,550 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:48,566 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/3a1461ad2/f9290c9067a041fe80aa09ec7e211fea/FLAG000d49619 [2022-12-13 16:54:48,580 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/3a1461ad2/f9290c9067a041fe80aa09ec7e211fea [2022-12-13 16:54:48,583 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:54:48,584 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:54:48,586 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:54:48,586 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:54:48,589 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:54:48,590 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:54:48" (1/1) ... [2022-12-13 16:54:48,591 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76e691a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:48, skipping insertion in model container [2022-12-13 16:54:48,591 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:54:48" (1/1) ... [2022-12-13 16:54:48,598 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:54:48,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:54:48,880 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:54:49,155 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:54:49,159 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:49,161 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:49,162 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:49,163 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:49,180 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:54:49,182 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:54:49,185 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:54:49,193 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:54:49,207 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:54:49,240 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:54:49,241 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:49,242 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:49,244 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:49,244 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:49,247 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:54:49,249 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:54:49,250 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:54:49,334 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:54:49,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49 WrapperNode [2022-12-13 16:54:49,334 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:54:49,335 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:54:49,335 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:54:49,335 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:54:49,341 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,383 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 16:54:49,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:54:49,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:54:49,384 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:54:49,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:54:49,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,395 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,395 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,404 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,405 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,407 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:54:49,408 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:54:49,408 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:54:49,408 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:54:49,409 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (1/1) ... [2022-12-13 16:54:49,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:54:49,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:54:49,438 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:54:49,440 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:54:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:54:49,473 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:54:49,473 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:54:49,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:54:49,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:54:49,581 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:54:49,583 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:54:49,691 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:54:49,696 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:54:49,696 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:54:49,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:49 BoogieIcfgContainer [2022-12-13 16:54:49,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:54:49,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:54:49,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:54:49,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:54:49,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:54:48" (1/3) ... [2022-12-13 16:54:49,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8436e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:54:49, skipping insertion in model container [2022-12-13 16:54:49,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:49" (2/3) ... [2022-12-13 16:54:49,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a8436e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:54:49, skipping insertion in model container [2022-12-13 16:54:49,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:49" (3/3) ... [2022-12-13 16:54:49,706 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:49,723 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:54:49,723 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:54:49,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:54:49,768 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;@3a59c300, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:54:49,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:54:49,773 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 16:54:49,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:54:49,781 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:54:49,782 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:54:49,782 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:54:49,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:54:49,788 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 16:54:49,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:54:49,797 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029550060] [2022-12-13 16:54:49,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:54:49,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:54:49,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:54:50,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:54:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:54:50,037 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 16:54:50,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:54:50,037 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029550060] [2022-12-13 16:54:50,038 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2029550060] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:54:50,038 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:54:50,038 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 16:54:50,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529222173] [2022-12-13 16:54:50,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:54:50,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 16:54:50,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:54:50,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 16:54:50,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 16:54:50,067 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 16:54:50,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:54:50,108 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 16:54:50,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 16:54:50,110 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 16:54:50,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:54:50,117 INFO L225 Difference]: With dead ends: 23 [2022-12-13 16:54:50,117 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:54:50,120 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 16:54:50,123 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 19 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:54:50,124 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 45 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:54:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:54:50,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 16:54:50,158 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 16:54:50,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 16:54:50,160 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 16:54:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:54:50,161 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 16:54:50,162 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 16:54:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 16:54:50,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:54:50,163 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:54:50,163 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:54:50,164 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:54:50,164 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:54:50,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:54:50,165 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 16:54:50,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:54:50,165 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700699682] [2022-12-13 16:54:50,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:54:50,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:54:50,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:54:50,195 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:54:50,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:54:50,222 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:54:50,222 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:54:50,223 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:54:50,232 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:54:50,232 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 16:54:50,235 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:54:50,238 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:54:50,256 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:54:50 BoogieIcfgContainer [2022-12-13 16:54:50,256 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:54:50,256 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:54:50,257 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:54:50,257 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:54:50,257 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:49" (3/4) ... [2022-12-13 16:54:50,260 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:54:50,260 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:54:50,260 INFO L158 Benchmark]: Toolchain (without parser) took 1676.15ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 123.2MB in the beginning and 154.9MB in the end (delta: -31.6MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,261 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:54:50,261 INFO L158 Benchmark]: CACSL2BoogieTranslator took 749.04ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 103.8MB in the end (delta: 19.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,262 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.49ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,262 INFO L158 Benchmark]: Boogie Preprocessor took 23.30ms. Allocated memory is still 159.4MB. Free memory was 101.7MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,262 INFO L158 Benchmark]: RCFGBuilder took 289.42ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 87.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,263 INFO L158 Benchmark]: TraceAbstraction took 556.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 86.0MB in the beginning and 155.9MB in the end (delta: -69.9MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,263 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 192.9MB. Free memory was 155.9MB in the beginning and 154.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:50,265 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 100.7MB. Free memory is still 50.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 749.04ms. Allocated memory is still 159.4MB. Free memory was 122.8MB in the beginning and 103.8MB in the end (delta: 19.0MB). Peak memory consumption was 53.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.49ms. Allocated memory is still 159.4MB. Free memory was 103.8MB in the beginning and 101.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.30ms. Allocated memory is still 159.4MB. Free memory was 101.7MB in the beginning and 99.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.42ms. Allocated memory is still 159.4MB. Free memory was 99.7MB in the beginning and 87.1MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 556.29ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 86.0MB in the beginning and 155.9MB in the end (delta: -69.9MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 192.9MB. Free memory was 155.9MB in the beginning and 154.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483651:2147483654}, argv={2147483651:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_preinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_51b_badSink(data) [L1577] ++data 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: 1577]: 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, 23 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, 20 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 21 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=23occurred 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, 0.1s 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 16:54:50,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 16:54:51,931 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:54:51,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:54:51,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:54:51,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:54:51,947 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:54:51,948 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:54:51,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:54:51,951 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:54:51,951 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:54:51,952 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:54:51,953 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:54:51,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:54:51,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:54:51,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:54:51,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:54:51,956 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:54:51,957 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:54:51,958 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:54:51,959 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:54:51,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:54:51,961 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:54:51,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:54:51,963 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:54:51,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:54:51,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:54:51,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:54:51,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:54:51,967 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:54:51,968 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:54:51,968 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:54:51,968 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:54:51,969 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:54:51,969 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:54:51,970 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:54:51,970 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:54:51,971 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:54:51,971 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:54:51,971 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:54:51,972 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:54:51,972 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:54:51,973 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 16:54:51,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:54:51,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:54:51,998 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:54:51,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:54:51,999 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:54:51,999 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:54:52,000 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:54:52,000 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:54:52,000 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:54:52,001 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:54:52,001 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:54:52,001 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:54:52,001 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:54:52,001 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:54:52,001 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:54:52,002 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:54:52,003 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:54:52,003 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:54:52,003 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:54:52,003 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:54:52,003 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:54:52,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:54:52,004 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:54:52,005 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_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8876f9977695ca0ceb6bb9d505fa2bf741f2323f9d05daad5ac638cdc1835eef [2022-12-13 16:54:52,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:54:52,235 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:54:52,237 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:54:52,237 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:54:52,238 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:54:52,239 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:54,744 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:54:54,950 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:54:54,951 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:54,964 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/a99f1a6bc/aaa2c99df2d741dca24fd9a1a6353b4c/FLAGb82e8f83c [2022-12-13 16:54:54,975 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/data/a99f1a6bc/aaa2c99df2d741dca24fd9a1a6353b4c [2022-12-13 16:54:54,977 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:54:54,978 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:54:54,979 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:54:54,979 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:54:54,982 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:54:54,982 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:54:54" (1/1) ... [2022-12-13 16:54:54,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a8079eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:54, skipping insertion in model container [2022-12-13 16:54:54,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:54:54" (1/1) ... [2022-12-13 16:54:54,988 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:54:55,031 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:54:55,327 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:54:55,647 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:54:55,652 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:55,653 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:55,655 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:55,656 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:55,673 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:54:55,676 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:54:55,679 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:54:55,693 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:54:55,716 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:54:55,758 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:54:55,760 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:55,761 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:54:55,763 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:55,763 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:54:55,767 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:54:55,768 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:54:55,770 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:54:55,925 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:54:55,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55 WrapperNode [2022-12-13 16:54:55,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:54:55,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:54:55,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:54:55,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:54:55,934 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,957 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,979 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 55 [2022-12-13 16:54:55,979 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:54:55,980 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:54:55,980 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:54:55,980 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:54:55,986 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:55,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:56,001 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:56,002 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:56,005 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:54:56,006 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:54:56,006 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:54:56,006 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:54:56,006 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (1/1) ... [2022-12-13 16:54:56,011 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:54:56,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:54:56,029 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:54:56,031 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:54:56,058 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:54:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:54:56,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:54:56,059 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:54:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:54:56,060 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 16:54:56,181 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:54:56,182 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:54:56,301 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:54:56,306 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:54:56,307 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 16:54:56,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:56 BoogieIcfgContainer [2022-12-13 16:54:56,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:54:56,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:54:56,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:54:56,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:54:56,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:54:54" (1/3) ... [2022-12-13 16:54:56,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21853650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:54:56, skipping insertion in model container [2022-12-13 16:54:56,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:54:55" (2/3) ... [2022-12-13 16:54:56,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21853650 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:54:56, skipping insertion in model container [2022-12-13 16:54:56,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:56" (3/3) ... [2022-12-13 16:54:56,317 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_51_bad.i [2022-12-13 16:54:56,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:54:56,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:54:56,370 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:54:56,380 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;@219000a4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:54:56,380 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:54:56,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 16:54:56,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:54:56,390 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:54:56,391 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:54:56,391 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:54:56,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:54:56,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 16:54:56,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:54:56,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1261005676] [2022-12-13 16:54:56,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:54:56,410 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 16:54:56,411 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:54:56,412 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 16:54:56,413 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 16:54:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:54:56,535 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:54:56,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:54:56,562 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 16:54:56,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:54:56,563 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:54:56,563 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1261005676] [2022-12-13 16:54:56,563 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1261005676] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:54:56,564 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:54:56,564 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 16:54:56,565 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418996829] [2022-12-13 16:54:56,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:54:56,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:54:56,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:54:56,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:54:56,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:54:56,591 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 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 16:54:56,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:54:56,604 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 16:54:56,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:54:56,606 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 16:54:56,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:54:56,610 INFO L225 Difference]: With dead ends: 23 [2022-12-13 16:54:56,610 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 16:54:56,612 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 16:54:56,615 INFO L413 NwaCegarLoop]: 25 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, 25 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 16:54:56,615 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:54:56,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 16:54:56,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 16:54:56,645 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 16:54:56,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 16:54:56,647 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 16:54:56,648 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:54:56,648 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 16:54:56,648 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 16:54:56,648 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 16:54:56,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 16:54:56,649 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:54:56,649 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:54:56,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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)] Ended with exit code 0 [2022-12-13 16:54:56,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 16:54:56,851 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:54:56,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:54:56,851 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 16:54:56,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:54:56,852 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1987383911] [2022-12-13 16:54:56,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:54:56,852 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 16:54:56,853 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:54:56,854 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 16:54:56,854 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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 16:54:56,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:54:56,934 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:54:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:54:56,984 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 16:54:56,985 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:54:56,986 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:54:56,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:54:57,000 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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 16:54:57,188 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 16:54:57,191 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:54:57,194 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:54:57,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:54:57 BoogieIcfgContainer [2022-12-13 16:54:57,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:54:57,212 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:54:57,212 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:54:57,212 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:54:57,212 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:54:56" (3/4) ... [2022-12-13 16:54:57,215 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:54:57,215 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:54:57,215 INFO L158 Benchmark]: Toolchain (without parser) took 2237.25ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 31.3MB in the beginning and 36.4MB in the end (delta: -5.1MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,216 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 27.0MB in the beginning and 27.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:54:57,216 INFO L158 Benchmark]: CACSL2BoogieTranslator took 947.61ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 41.7MB in the end (delta: -10.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,216 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.29ms. Allocated memory is still 75.5MB. Free memory was 41.7MB in the beginning and 38.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,217 INFO L158 Benchmark]: Boogie Preprocessor took 25.43ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,217 INFO L158 Benchmark]: RCFGBuilder took 303.15ms. Allocated memory is still 75.5MB. Free memory was 36.5MB in the beginning and 42.2MB in the end (delta: -5.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,218 INFO L158 Benchmark]: TraceAbstraction took 900.34ms. Allocated memory is still 75.5MB. Free memory was 41.6MB in the beginning and 36.8MB in the end (delta: 4.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2022-12-13 16:54:57,218 INFO L158 Benchmark]: Witness Printer took 2.94ms. Allocated memory is still 75.5MB. Free memory was 36.8MB in the beginning and 36.4MB in the end (delta: 353.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:54:57,220 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 48.2MB. Free memory was 27.0MB in the beginning and 27.0MB in the end (delta: 54.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 947.61ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 31.1MB in the beginning and 41.7MB in the end (delta: -10.6MB). Peak memory consumption was 18.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.29ms. Allocated memory is still 75.5MB. Free memory was 41.7MB in the beginning and 38.6MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 25.43ms. Allocated memory is still 75.5MB. Free memory was 38.6MB in the beginning and 36.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.15ms. Allocated memory is still 75.5MB. Free memory was 36.5MB in the beginning and 42.2MB in the end (delta: -5.7MB). Peak memory consumption was 9.9MB. Max. memory is 16.1GB. * TraceAbstraction took 900.34ms. Allocated memory is still 75.5MB. Free memory was 41.6MB in the beginning and 36.8MB in the end (delta: 4.9MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Witness Printer took 2.94ms. Allocated memory is still 75.5MB. Free memory was 36.8MB in the beginning and 36.4MB in the end (delta: 353.5kB). 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: 1577]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_preinc_51_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_51b_badSink(data) [L1577] ++data 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: 1577]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 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, 25 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=23occurred 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, 68 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 16:54:57,233 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ed0c789c-3983-4efa-b3cc-3eaec8ff25f4/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 Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample