./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 e1661dff488fa6f4b0ee41c76507d44218cb3dfe66353ab340638e39ccafd644 --- 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 22:15:14,252 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:15:14,254 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:15:14,267 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:15:14,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:15:14,268 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:15:14,269 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:15:14,270 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:15:14,271 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:15:14,272 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:15:14,272 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:15:14,273 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:15:14,273 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:15:14,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:15:14,275 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:15:14,275 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:15:14,276 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:15:14,277 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:15:14,278 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:15:14,279 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:15:14,280 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:15:14,281 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:15:14,282 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:15:14,283 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:15:14,285 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:15:14,285 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:15:14,285 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:15:14,286 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:15:14,286 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:15:14,287 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:15:14,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:15:14,288 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:15:14,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:15:14,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:15:14,289 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:15:14,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:15:14,290 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:15:14,290 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:15:14,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:15:14,291 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:15:14,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:15:14,292 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 22:15:14,307 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:15:14,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:15:14,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:15:14,307 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:15:14,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:15:14,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:15:14,308 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:15:14,308 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:15:14,308 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:15:14,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:15:14,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:15:14,310 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:15:14,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:15:14,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:15:14,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:15:14,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:15:14,310 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:15:14,310 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:15:14,311 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:15:14,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:15:14,312 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:15:14,312 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_ec971884-083c-4d32-bd7f-74ef26cca6d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1661dff488fa6f4b0ee41c76507d44218cb3dfe66353ab340638e39ccafd644 [2022-12-13 22:15:14,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:15:14,519 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:15:14,521 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:15:14,522 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:15:14,523 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:15:14,523 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:17,160 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:15:17,373 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:15:17,373 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:17,387 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/d08d33f93/30f2bd34a60245418e46aec248115abd/FLAG47d690a45 [2022-12-13 22:15:17,399 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/d08d33f93/30f2bd34a60245418e46aec248115abd [2022-12-13 22:15:17,401 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:15:17,402 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:15:17,403 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:15:17,404 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:15:17,406 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:15:17,407 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:15:17" (1/1) ... [2022-12-13 22:15:17,408 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@12e481f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:17, skipping insertion in model container [2022-12-13 22:15:17,408 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:15:17" (1/1) ... [2022-12-13 22:15:17,414 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:15:17,454 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:15:17,718 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:15:18,021 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:15:18,026 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:18,028 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:18,030 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:18,031 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:18,050 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:15:18,053 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:15:18,057 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:15:18,065 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:15:18,083 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:15:18,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:15:18,132 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:18,133 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:18,135 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:18,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:18,140 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:15:18,142 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:15:18,144 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:15:18,241 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:15:18,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18 WrapperNode [2022-12-13 22:15:18,241 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:15:18,242 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:15:18,242 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:15:18,242 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:15:18,247 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,288 INFO L138 Inliner]: procedures = 501, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 22:15:18,288 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:15:18,289 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:15:18,289 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:15:18,289 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:15:18,296 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,299 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,308 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,309 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,312 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:15:18,313 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:15:18,313 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:15:18,313 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:15:18,314 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (1/1) ... [2022-12-13 22:15:18,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:15:18,332 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:15:18,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:15:18,346 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:15:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 22:15:18,374 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 22:15:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:15:18,375 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 22:15:18,375 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:15:18,491 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:15:18,492 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:15:18,597 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:15:18,602 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:15:18,602 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:15:18,604 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:18 BoogieIcfgContainer [2022-12-13 22:15:18,604 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:15:18,606 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:15:18,606 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:15:18,608 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:15:18,608 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:15:17" (1/3) ... [2022-12-13 22:15:18,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e502fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:15:18, skipping insertion in model container [2022-12-13 22:15:18,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:18" (2/3) ... [2022-12-13 22:15:18,609 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e502fd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:15:18, skipping insertion in model container [2022-12-13 22:15:18,609 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:18" (3/3) ... [2022-12-13 22:15:18,610 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:18,624 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:15:18,624 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:15:18,660 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:15:18,664 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;@17c3d18b, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:15:18,664 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:15:18,668 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 22:15:18,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 22:15:18,673 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:15:18,674 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:15:18,674 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:15:18,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:15:18,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 22:15:18,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:15:18,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1782724948] [2022-12-13 22:15:18,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:15:18,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:15:18,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:15:19,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:15:19,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:15:19,063 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 22:15:19,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:15:19,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1782724948] [2022-12-13 22:15:19,064 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1782724948] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:15:19,064 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:15:19,064 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:15:19,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339795372] [2022-12-13 22:15:19,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:15:19,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:15:19,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:15:19,092 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:15:19,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:15:19,094 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 22:15:19,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:15:19,134 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 22:15:19,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-13 22:15:19,136 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 22:15:19,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:15:19,141 INFO L225 Difference]: With dead ends: 23 [2022-12-13 22:15:19,141 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 22:15:19,143 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 22:15:19,145 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 15 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 45 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:15:19,146 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 45 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:15:19,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 22:15:19,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 22:15:19,169 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 22:15:19,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 22:15:19,170 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 22:15:19,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:15:19,171 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 22:15:19,171 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 22:15:19,171 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 22:15:19,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:15:19,172 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:15:19,172 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:15:19,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:15:19,172 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:15:19,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:15:19,173 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 22:15:19,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:15:19,173 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [988750675] [2022-12-13 22:15:19,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:15:19,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:15:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:15:19,197 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:15:19,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:15:19,231 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:15:19,231 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:15:19,233 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 22:15:19,235 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 22:15:19,235 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:15:19,239 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:15:19,242 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:15:19,265 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:15:19 BoogieIcfgContainer [2022-12-13 22:15:19,265 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:15:19,266 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:15:19,266 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:15:19,266 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:15:19,266 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:18" (3/4) ... [2022-12-13 22:15:19,270 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:15:19,270 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:15:19,271 INFO L158 Benchmark]: Toolchain (without parser) took 1867.93ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 122.5MB in the beginning and 153.1MB in the end (delta: -30.5MB). Peak memory consumption was 6.2MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,271 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 159.4MB. Free memory was 102.0MB in the beginning and 101.8MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:15:19,272 INFO L158 Benchmark]: CACSL2BoogieTranslator took 838.13ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 122.5MB in the beginning and 155.8MB in the end (delta: -33.3MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,272 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.02ms. Allocated memory is still 192.9MB. Free memory was 155.8MB in the beginning and 152.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,273 INFO L158 Benchmark]: Boogie Preprocessor took 23.35ms. Allocated memory is still 192.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,273 INFO L158 Benchmark]: RCFGBuilder took 291.16ms. Allocated memory is still 192.9MB. Free memory was 150.6MB in the beginning and 136.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,274 INFO L158 Benchmark]: TraceAbstraction took 659.56ms. Allocated memory is still 192.9MB. Free memory was 135.9MB in the beginning and 153.1MB in the end (delta: -17.2MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. [2022-12-13 22:15:19,274 INFO L158 Benchmark]: Witness Printer took 4.21ms. Allocated memory is still 192.9MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:15:19,277 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 159.4MB. Free memory was 102.0MB in the beginning and 101.8MB in the end (delta: 141.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 838.13ms. Allocated memory was 159.4MB in the beginning and 192.9MB in the end (delta: 33.6MB). Free memory was 122.5MB in the beginning and 155.8MB in the end (delta: -33.3MB). Peak memory consumption was 76.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.02ms. Allocated memory is still 192.9MB. Free memory was 155.8MB in the beginning and 152.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.35ms. Allocated memory is still 192.9MB. Free memory was 152.7MB in the beginning and 150.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.16ms. Allocated memory is still 192.9MB. Free memory was 150.6MB in the beginning and 136.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 659.56ms. Allocated memory is still 192.9MB. Free memory was 135.9MB in the beginning and 153.1MB in the end (delta: -17.2MB). Peak memory consumption was 59.4MB. Max. memory is 16.1GB. * Witness Printer took 4.21ms. Allocated memory is still 192.9MB. Free memory is still 153.1MB. 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: 1579]: 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)=2147483655, argc=2147483655, argv={2147483651:2147483657}, argv={2147483651:2147483657}, 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_add_64_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_add_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data + 1 VAL [data=2147483647, dataPtr={6:0}, dataVoidPtr={6:0}, dataVoidPtr={6:0}, 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: 1579]: 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: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 17 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 15 mSDsluCounter, 45 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 10 IncrementalHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 19 mSDtfsCounter, 10 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: 5, 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, 0.3s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 22 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 22:15:19,295 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 e1661dff488fa6f4b0ee41c76507d44218cb3dfe66353ab340638e39ccafd644 --- 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 22:15:21,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:15:21,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:15:21,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:15:21,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:15:21,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:15:21,058 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:15:21,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:15:21,061 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:15:21,062 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:15:21,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:15:21,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:15:21,064 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:15:21,065 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:15:21,066 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:15:21,067 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:15:21,068 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:15:21,080 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:15:21,082 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:15:21,084 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:15:21,085 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:15:21,087 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:15:21,088 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:15:21,089 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:15:21,094 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:15:21,095 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:15:21,095 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:15:21,095 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:15:21,096 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:15:21,096 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:15:21,096 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:15:21,097 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:15:21,097 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:15:21,098 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:15:21,098 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:15:21,098 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:15:21,099 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:15:21,099 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:15:21,099 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:15:21,099 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:15:21,100 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:15:21,100 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 22:15:21,114 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:15:21,114 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:15:21,115 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:15:21,115 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:15:21,115 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:15:21,115 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:15:21,116 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:15:21,116 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:15:21,116 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:15:21,117 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:15:21,117 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:15:21,118 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:15:21,118 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 22:15:21,119 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:15:21,119 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_ec971884-083c-4d32-bd7f-74ef26cca6d2/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e1661dff488fa6f4b0ee41c76507d44218cb3dfe66353ab340638e39ccafd644 [2022-12-13 22:15:21,339 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:15:21,354 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:15:21,356 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:15:21,357 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:15:21,357 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:15:21,358 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:23,884 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:15:24,141 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:15:24,142 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:24,161 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/33a949f54/21fac5179d654684b6ae2f135899100c/FLAGfa763d681 [2022-12-13 22:15:24,173 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/data/33a949f54/21fac5179d654684b6ae2f135899100c [2022-12-13 22:15:24,175 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:15:24,177 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:15:24,178 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:15:24,178 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:15:24,181 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:15:24,182 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:24,183 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4375c589 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24, skipping insertion in model container [2022-12-13 22:15:24,183 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:24,189 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:15:24,229 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:15:24,459 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:15:24,743 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:15:24,746 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,747 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,749 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,749 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,762 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:15:24,764 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:15:24,767 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:15:24,777 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2022-12-13 22:15:24,784 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:15:24,789 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:15:24,818 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:15:24,819 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,820 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,821 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,822 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,825 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:15:24,826 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:15:24,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:15:24,831 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:15:24,845 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:15:24,881 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:15:24,882 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,883 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:15:24,884 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,884 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:15:24,887 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:15:24,888 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:15:24,889 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:15:24,978 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:15:24,979 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24 WrapperNode [2022-12-13 22:15:24,979 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:15:24,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:15:24,980 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:15:24,980 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:15:24,985 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,001 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,017 INFO L138 Inliner]: procedures = 506, calls = 68, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-12-13 22:15:25,017 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:15:25,018 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:15:25,018 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:15:25,018 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:15:25,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,025 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,027 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,034 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,038 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,040 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:15:25,041 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:15:25,041 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:15:25,041 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:15:25,041 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (1/1) ... [2022-12-13 22:15:25,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:15:25,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:15:25,064 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:15:25,067 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:15:25,094 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 22:15:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 22:15:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 22:15:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:15:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 22:15:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:15:25,095 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:15:25,095 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:15:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-12-13 22:15:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:15:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-12-13 22:15:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 22:15:25,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 22:15:25,207 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:15:25,209 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:15:25,420 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:15:25,425 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:15:25,426 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:15:25,427 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:25 BoogieIcfgContainer [2022-12-13 22:15:25,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:15:25,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:15:25,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:15:25,433 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:15:25,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:15:24" (1/3) ... [2022-12-13 22:15:25,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74559994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:15:25, skipping insertion in model container [2022-12-13 22:15:25,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:15:24" (2/3) ... [2022-12-13 22:15:25,434 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74559994 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:15:25, skipping insertion in model container [2022-12-13 22:15:25,434 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:25" (3/3) ... [2022-12-13 22:15:25,436 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_64_bad.i [2022-12-13 22:15:25,453 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:15:25,453 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:15:25,492 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:15:25,497 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;@7cfc5280, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:15:25,497 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:15:25,506 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 22:15:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 22:15:25,512 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:15:25,513 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:15:25,513 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:15:25,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:15:25,518 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 22:15:25,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:15:25,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [663474672] [2022-12-13 22:15:25,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:15:25,536 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 22:15:25,537 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:15:25,538 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:25,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:25,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:15:25,714 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 22:15:25,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:15:25,732 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 22:15:25,732 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:15:25,732 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:15:25,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [663474672] [2022-12-13 22:15:25,733 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [663474672] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:15:25,733 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:15:25,733 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:15:25,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1233789132] [2022-12-13 22:15:25,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:15:25,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:15:25,738 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:15:25,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:15:25,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:15:25,760 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 22:15:25,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:15:25,771 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 22:15:25,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:15:25,773 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 22:15:25,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:15:25,777 INFO L225 Difference]: With dead ends: 23 [2022-12-13 22:15:25,777 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 22:15:25,779 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 22:15:25,782 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 22:15:25,782 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 22:15:25,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 22:15:25,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 22:15:25,808 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 22:15:25,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 22:15:25,809 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 22:15:25,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:15:25,811 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 22:15:25,811 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 22:15:25,811 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 22:15:25,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:15:25,812 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:15:25,812 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:15:25,823 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,013 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,015 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:15:26,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:15:26,017 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 22:15:26,018 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:15:26,019 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1982040945] [2022-12-13 22:15:26,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:15:26,020 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 22:15:26,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:15:26,023 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:15:26,326 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:15:26,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:15:26,496 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 22:15:26,497 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:15:26,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 22:15:26,500 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 22:15:26,512 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,701 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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 22:15:26,711 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:15:26,720 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:15:26,761 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:15:26 BoogieIcfgContainer [2022-12-13 22:15:26,762 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:15:26,762 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:15:26,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:15:26,762 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:15:26,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:15:25" (3/4) ... [2022-12-13 22:15:26,765 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:15:26,765 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:15:26,766 INFO L158 Benchmark]: Toolchain (without parser) took 2589.37ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 55.0MB in the beginning and 48.9MB in the end (delta: 6.1MB). Peak memory consumption was 23.0MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,767 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:15:26,767 INFO L158 Benchmark]: CACSL2BoogieTranslator took 800.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.8MB in the beginning and 75.6MB in the end (delta: -20.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,767 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.85ms. Allocated memory is still 109.1MB. Free memory was 75.4MB in the beginning and 72.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,768 INFO L158 Benchmark]: Boogie Preprocessor took 22.44ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,768 INFO L158 Benchmark]: RCFGBuilder took 387.13ms. Allocated memory is still 109.1MB. Free memory was 69.9MB in the beginning and 54.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,769 INFO L158 Benchmark]: TraceAbstraction took 1331.78ms. Allocated memory is still 109.1MB. Free memory was 53.8MB in the beginning and 49.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. [2022-12-13 22:15:26,769 INFO L158 Benchmark]: Witness Printer took 3.26ms. Allocated memory is still 109.1MB. Free memory was 49.5MB in the beginning and 48.9MB in the end (delta: 612.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:15:26,771 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 28.5MB in the beginning and 28.5MB in the end (delta: 52.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 800.99ms. Allocated memory was 90.2MB in the beginning and 109.1MB in the end (delta: 18.9MB). Free memory was 54.8MB in the beginning and 75.6MB in the end (delta: -20.8MB). Peak memory consumption was 27.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.85ms. Allocated memory is still 109.1MB. Free memory was 75.4MB in the beginning and 72.0MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.44ms. Allocated memory is still 109.1MB. Free memory was 72.0MB in the beginning and 69.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 387.13ms. Allocated memory is still 109.1MB. Free memory was 69.9MB in the beginning and 54.4MB in the end (delta: 15.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1331.78ms. Allocated memory is still 109.1MB. Free memory was 53.8MB in the beginning and 49.5MB in the end (delta: 4.2MB). Peak memory consumption was 2.2MB. Max. memory is 16.1GB. * Witness Printer took 3.26ms. Allocated memory is still 109.1MB. Free memory was 49.5MB in the beginning and 48.9MB in the end (delta: 612.0kB). 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: 1579]: 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_add_64_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_add_64b_badSink(&data) [L1576] int * dataPtr = (int *)dataVoidPtr; [L1577] EXPR \read(*dataPtr) [L1577] int data = (*dataPtr); [L1579] data + 1 VAL [data=2147483647, dataPtr={7:0}, dataVoidPtr={7:0}, dataVoidPtr={7:0}, 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: 1579]: 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: 1.2s, 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, 0.2s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 113 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 22:15:26,787 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ec971884-083c-4d32-bd7f-74ef26cca6d2/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