./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_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_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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_df3c9259-090d-48eb-9862-7beb24a867bb/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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- 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 18:47:46,169 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:47:46,171 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:47:46,189 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:47:46,189 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:47:46,190 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:47:46,191 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:47:46,193 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:47:46,194 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:47:46,195 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:47:46,196 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:47:46,197 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:47:46,197 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:47:46,198 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:47:46,199 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:47:46,200 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:47:46,201 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:47:46,202 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:47:46,204 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:47:46,206 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:47:46,207 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:47:46,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:47:46,219 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:47:46,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:47:46,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:47:46,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:47:46,223 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:47:46,223 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:47:46,224 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:47:46,224 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:47:46,224 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:47:46,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:47:46,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:47:46,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:47:46,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:47:46,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:47:46,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:47:46,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:47:46,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:47:46,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:47:46,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:47:46,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 18:47:46,255 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:47:46,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:47:46,256 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:47:46,256 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:47:46,256 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:47:46,257 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:47:46,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:47:46,257 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:47:46,257 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:47:46,257 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:47:46,258 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:47:46,259 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:47:46,259 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:47:46,260 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:47:46,260 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:47:46,260 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:47:46,260 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 18:47:46,260 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 18:47:46,260 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:47:46,261 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:47:46,261 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:47:46,261 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:47:46,261 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:47:46,261 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_df3c9259-090d-48eb-9862-7beb24a867bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-12-13 18:47:46,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:47:46,443 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:47:46,446 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:47:46,447 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:47:46,447 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:47:46,448 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:49,007 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:47:49,267 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:47:49,267 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:49,281 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/5df747352/d5cc3b957d0d46c7baad8eeda7ec0a8b/FLAGfb7a4ae4d [2022-12-13 18:47:49,591 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/5df747352/d5cc3b957d0d46c7baad8eeda7ec0a8b [2022-12-13 18:47:49,594 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:47:49,595 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:47:49,596 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:47:49,597 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:47:49,600 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:47:49,601 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:47:49" (1/1) ... [2022-12-13 18:47:49,602 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57f9dd99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:49, skipping insertion in model container [2022-12-13 18:47:49,602 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:47:49" (1/1) ... [2022-12-13 18:47:49,610 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:47:49,645 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:47:49,859 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:47:50,146 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:47:50,150 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:50,152 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:50,153 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:50,154 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:50,172 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:47:50,174 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:47:50,177 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:47:50,184 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:47:50,197 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:47:50,224 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:47:50,225 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:50,226 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:50,227 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:50,228 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:50,231 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:47:50,232 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:47:50,233 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:47:50,337 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:47:50,337 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50 WrapperNode [2022-12-13 18:47:50,337 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:47:50,338 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:47:50,338 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:47:50,338 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:47:50,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,362 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,382 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-12-13 18:47:50,383 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:47:50,383 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:47:50,383 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:47:50,383 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:47:50,390 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,390 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,392 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,398 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,399 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,400 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:47:50,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:47:50,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:47:50,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:47:50,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (1/1) ... [2022-12-13 18:47:50,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:47:50,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:47:50,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:47:50,433 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:47:50,463 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:47:50,463 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:47:50,463 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:47:50,463 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:47:50,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:47:50,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 18:47:50,568 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:47:50,569 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:47:50,666 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:47:50,672 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:47:50,672 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:47:50,674 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:50 BoogieIcfgContainer [2022-12-13 18:47:50,675 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:47:50,678 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:47:50,678 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:47:50,680 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:47:50,680 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:47:49" (1/3) ... [2022-12-13 18:47:50,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6a61f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:47:50, skipping insertion in model container [2022-12-13 18:47:50,681 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:50" (2/3) ... [2022-12-13 18:47:50,681 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d6a61f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:47:50, skipping insertion in model container [2022-12-13 18:47:50,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:50" (3/3) ... [2022-12-13 18:47:50,683 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:50,698 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:47:50,698 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:47:50,733 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:47:50,738 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;@69595c8f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:47:50,739 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:47:50,741 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 18:47:50,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:47:50,747 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:47:50,747 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:47:50,748 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:47:50,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:47:50,752 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 18:47:50,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 18:47:50,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440787802] [2022-12-13 18:47:50,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:47:50,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 18:47:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:47:50,870 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:47:50,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:47:50,904 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 18:47:50,906 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:47:50,907 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:47:50,908 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:47:50,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 18:47:50,912 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 18:47:50,915 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:47:50,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:47:50 BoogieIcfgContainer [2022-12-13 18:47:50,932 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:47:50,933 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:47:50,933 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:47:50,933 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:47:50,933 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:50" (3/4) ... [2022-12-13 18:47:50,936 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:47:50,936 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:47:50,937 INFO L158 Benchmark]: Toolchain (without parser) took 1341.66ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 107.9MB in the beginning and 151.7MB in the end (delta: -43.8MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,937 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:47:50,938 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.18ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 107.9MB in the beginning and 187.3MB in the end (delta: -79.5MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,938 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.43ms. Allocated memory is still 220.2MB. Free memory was 187.3MB in the beginning and 184.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,938 INFO L158 Benchmark]: Boogie Preprocessor took 20.54ms. Allocated memory is still 220.2MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,939 INFO L158 Benchmark]: RCFGBuilder took 270.56ms. Allocated memory is still 220.2MB. Free memory was 182.1MB in the beginning and 169.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,939 INFO L158 Benchmark]: TraceAbstraction took 254.57ms. Allocated memory is still 220.2MB. Free memory was 168.5MB in the beginning and 151.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 18:47:50,939 INFO L158 Benchmark]: Witness Printer took 3.51ms. Allocated memory is still 220.2MB. Free memory is still 151.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:47:50,941 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 146.8MB. Free memory is still 113.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.18ms. Allocated memory was 146.8MB in the beginning and 220.2MB in the end (delta: 73.4MB). Free memory was 107.9MB in the beginning and 187.3MB in the end (delta: -79.5MB). Peak memory consumption was 77.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.43ms. Allocated memory is still 220.2MB. Free memory was 187.3MB in the beginning and 184.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.54ms. Allocated memory is still 220.2MB. Free memory was 184.2MB in the beginning and 182.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 270.56ms. Allocated memory is still 220.2MB. Free memory was 182.1MB in the beginning and 169.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 254.57ms. Allocated memory is still 220.2MB. Free memory was 168.5MB in the beginning and 151.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.51ms. Allocated memory is still 220.2MB. Free memory is still 151.7MB. 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: 1578]: 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)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, 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 CWE191_Integer_Underflow__int_fgets_multiply_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 CWE191_Integer_Underflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 VAL [\old(data)=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [\old(data)=-1073741825, data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:47:50,954 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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_df3c9259-090d-48eb-9862-7beb24a867bb/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 df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 --- 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 18:47:52,479 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 18:47:52,481 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 18:47:52,499 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 18:47:52,500 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 18:47:52,501 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 18:47:52,502 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 18:47:52,504 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 18:47:52,505 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 18:47:52,506 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 18:47:52,507 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 18:47:52,508 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 18:47:52,509 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 18:47:52,510 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 18:47:52,511 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 18:47:52,512 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 18:47:52,513 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 18:47:52,514 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 18:47:52,515 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 18:47:52,517 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 18:47:52,518 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 18:47:52,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 18:47:52,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 18:47:52,521 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 18:47:52,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 18:47:52,525 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 18:47:52,526 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 18:47:52,527 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 18:47:52,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 18:47:52,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 18:47:52,528 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 18:47:52,529 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 18:47:52,530 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 18:47:52,530 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 18:47:52,536 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 18:47:52,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 18:47:52,537 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 18:47:52,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 18:47:52,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 18:47:52,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 18:47:52,540 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 18:47:52,541 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 18:47:52,556 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 18:47:52,556 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 18:47:52,556 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 18:47:52,556 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 18:47:52,557 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 18:47:52,557 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 18:47:52,557 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 18:47:52,558 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 18:47:52,558 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 18:47:52,559 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 18:47:52,559 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:47:52,560 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 18:47:52,560 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 18:47:52,561 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 18:47:52,561 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_df3c9259-090d-48eb-9862-7beb24a867bb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> df05be8d75dbd70ac30927f6a934133d02541668661e133068725c0eec89c4d4 [2022-12-13 18:47:52,766 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 18:47:52,784 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 18:47:52,786 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 18:47:52,787 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 18:47:52,788 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 18:47:52,788 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:55,346 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 18:47:55,572 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 18:47:55,572 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:55,596 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/0462ba1d7/4505437e665f45bfb5a738ef5feb64ab/FLAG391ac3422 [2022-12-13 18:47:55,894 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/data/0462ba1d7/4505437e665f45bfb5a738ef5feb64ab [2022-12-13 18:47:55,896 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 18:47:55,897 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 18:47:55,898 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 18:47:55,898 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 18:47:55,901 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 18:47:55,901 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:47:55" (1/1) ... [2022-12-13 18:47:55,902 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ccd4e7e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:55, skipping insertion in model container [2022-12-13 18:47:55,903 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 06:47:55" (1/1) ... [2022-12-13 18:47:55,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 18:47:55,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 18:47:56,151 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:47:56,475 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:47:56,480 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:56,482 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:56,484 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:56,485 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:56,504 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:47:56,507 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:47:56,511 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:47:56,521 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 18:47:56,535 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 18:47:56,566 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 18:47:56,567 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:56,567 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 18:47:56,569 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:56,569 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 18:47:56,573 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 18:47:56,574 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 18:47:56,575 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 18:47:56,699 INFO L208 MainTranslator]: Completed translation [2022-12-13 18:47:56,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56 WrapperNode [2022-12-13 18:47:56,699 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 18:47:56,700 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 18:47:56,700 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 18:47:56,700 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 18:47:56,705 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,722 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,737 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 53 [2022-12-13 18:47:56,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 18:47:56,738 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 18:47:56,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 18:47:56,738 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 18:47:56,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,747 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,752 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,753 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,755 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,756 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 18:47:56,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 18:47:56,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 18:47:56,759 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 18:47:56,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (1/1) ... [2022-12-13 18:47:56,764 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 18:47:56,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 18:47:56,786 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 18:47:56,788 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 18:47:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 18:47:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 18:47:56,813 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 18:47:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 18:47:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 18:47:56,813 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 18:47:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 18:47:56,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 18:47:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 18:47:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 18:47:56,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 18:47:56,925 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 18:47:56,927 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 18:47:57,046 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 18:47:57,051 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 18:47:57,052 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 18:47:57,053 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:57 BoogieIcfgContainer [2022-12-13 18:47:57,053 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 18:47:57,056 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 18:47:57,056 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 18:47:57,059 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 18:47:57,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 06:47:55" (1/3) ... [2022-12-13 18:47:57,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808c08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:47:57, skipping insertion in model container [2022-12-13 18:47:57,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 06:47:56" (2/3) ... [2022-12-13 18:47:57,060 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6808c08d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 06:47:57, skipping insertion in model container [2022-12-13 18:47:57,060 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:57" (3/3) ... [2022-12-13 18:47:57,062 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_51_bad.i [2022-12-13 18:47:57,082 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 18:47:57,082 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 18:47:57,115 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 18:47:57,120 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;@3bc0b23a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 18:47:57,120 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 18:47:57,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 20 states have internal predecessors, (22), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 18:47:57,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 18:47:57,128 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 18:47:57,129 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 18:47:57,129 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 18:47:57,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 18:47:57,133 INFO L85 PathProgramCache]: Analyzing trace with hash 252523526, now seen corresponding path program 1 times [2022-12-13 18:47:57,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 18:47:57,143 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [739157967] [2022-12-13 18:47:57,143 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 18:47:57,143 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 18:47:57,143 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 18:47:57,144 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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 18:47:57,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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 18:47:57,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:47:57,282 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 18:47:57,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 18:47:57,340 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 18:47:57,342 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 18:47:57,342 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 18:47:57,344 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 18:47:57,359 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 18:47:57,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/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 18:47:57,550 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 18:47:57,554 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 18:47:57,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 06:47:57 BoogieIcfgContainer [2022-12-13 18:47:57,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 18:47:57,585 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 18:47:57,585 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 18:47:57,586 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 18:47:57,586 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 06:47:57" (3/4) ... [2022-12-13 18:47:57,592 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 18:47:57,592 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 18:47:57,594 INFO L158 Benchmark]: Toolchain (without parser) took 1695.98ms. Allocated memory is still 83.9MB. Free memory was 63.7MB in the beginning and 41.7MB in the end (delta: 22.1MB). Peak memory consumption was 22.7MB. Max. memory is 16.1GB. [2022-12-13 18:47:57,595 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:47:57,596 INFO L158 Benchmark]: CACSL2BoogieTranslator took 801.52ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 52.9MB in the end (delta: 10.4MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. [2022-12-13 18:47:57,596 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.66ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 50.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 18:47:57,597 INFO L158 Benchmark]: Boogie Preprocessor took 20.17ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 48.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 18:47:57,598 INFO L158 Benchmark]: RCFGBuilder took 295.09ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 34.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 18:47:57,599 INFO L158 Benchmark]: TraceAbstraction took 528.58ms. Allocated memory is still 83.9MB. Free memory was 33.3MB in the beginning and 41.7MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:47:57,599 INFO L158 Benchmark]: Witness Printer took 6.96ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 18:47:57,604 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 60.8MB. Free memory was 39.3MB in the beginning and 39.3MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 801.52ms. Allocated memory is still 83.9MB. Free memory was 63.3MB in the beginning and 52.9MB in the end (delta: 10.4MB). Peak memory consumption was 46.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.66ms. Allocated memory is still 83.9MB. Free memory was 52.9MB in the beginning and 50.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.17ms. Allocated memory is still 83.9MB. Free memory was 50.1MB in the beginning and 48.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 295.09ms. Allocated memory is still 83.9MB. Free memory was 48.0MB in the beginning and 34.0MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 528.58ms. Allocated memory is still 83.9MB. Free memory was 33.3MB in the beginning and 41.7MB in the end (delta: -8.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.96ms. Allocated memory is still 83.9MB. Free memory is still 41.7MB. 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: 1578]: 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 CWE191_Integer_Underflow__int_fgets_multiply_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 CWE191_Integer_Underflow__int_fgets_multiply_51b_badSink(data) [L1576] COND TRUE data < 0 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [\old(data)=-2147483648, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 12 NumberOfCodeBlocks, 12 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 18:47:57,630 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_df3c9259-090d-48eb-9862-7beb24a867bb/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample