./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 --- 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 20:52:11,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:52:11,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:52:11,178 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:52:11,179 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:52:11,180 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:52:11,181 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:52:11,183 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:52:11,184 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:52:11,185 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:52:11,186 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:52:11,187 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:52:11,187 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:52:11,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:52:11,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:52:11,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:52:11,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:52:11,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:52:11,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:52:11,196 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:52:11,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:52:11,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:52:11,199 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:52:11,200 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:52:11,209 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:52:11,209 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:52:11,209 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:52:11,210 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:52:11,211 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:52:11,212 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:52:11,212 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:52:11,213 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:52:11,214 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:52:11,214 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:52:11,215 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:52:11,215 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:52:11,216 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:52:11,216 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:52:11,216 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:52:11,217 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:52:11,218 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:52:11,218 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:52:11,241 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:52:11,242 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:52:11,242 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:52:11,242 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:52:11,243 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:52:11,243 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:52:11,243 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:52:11,244 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:52:11,244 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:52:11,244 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:52:11,244 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:52:11,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:52:11,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:52:11,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:52:11,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:52:11,248 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:52:11,248 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:52:11,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:52:11,248 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:52:11,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:52:11,248 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:52:11,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:52:11,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:52:11,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:11,249 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:52:11,249 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:52:11,249 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:52:11,250 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:52:11,251 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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 [2022-12-13 20:52:11,438 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:52:11,454 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:52:11,455 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:52:11,456 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:52:11,457 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:52:11,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:14,019 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:52:14,287 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:52:14,287 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:14,305 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/969c875f5/a8aaa69bc56a4432be96e820ddedc0a7/FLAGf504decd1 [2022-12-13 20:52:14,320 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/969c875f5/a8aaa69bc56a4432be96e820ddedc0a7 [2022-12-13 20:52:14,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:52:14,324 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:52:14,325 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:14,325 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:52:14,329 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:52:14,329 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:14" (1/1) ... [2022-12-13 20:52:14,330 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fa6bb1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:14, skipping insertion in model container [2022-12-13 20:52:14,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:14" (1/1) ... [2022-12-13 20:52:14,338 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:52:14,381 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:52:14,637 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:14,936 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:14,940 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:14,943 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:14,945 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:14,946 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:14,969 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:14,971 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:14,972 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:14,982 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:52:15,004 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:15,048 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:15,049 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:15,050 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:15,053 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:15,053 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:15,058 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:15,060 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:15,061 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:15,195 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:52:15,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15 WrapperNode [2022-12-13 20:52:15,196 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:15,197 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:15,197 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:52:15,197 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:52:15,202 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,222 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,241 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 57 [2022-12-13 20:52:15,241 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:15,242 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:52:15,242 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:52:15,242 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:52:15,251 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,254 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,254 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,259 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,261 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,262 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,266 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:52:15,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:52:15,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:52:15,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:52:15,267 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (1/1) ... [2022-12-13 20:52:15,274 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:15,284 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:52:15,296 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:52:15,298 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:52:15,329 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:52:15,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:52:15,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:52:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:52:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:52:15,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:52:15,444 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:52:15,445 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:52:15,536 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:52:15,541 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:52:15,541 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:52:15,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:15 BoogieIcfgContainer [2022-12-13 20:52:15,542 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:52:15,544 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:52:15,544 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:52:15,546 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:52:15,546 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:52:14" (1/3) ... [2022-12-13 20:52:15,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7b1a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:15, skipping insertion in model container [2022-12-13 20:52:15,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:15" (2/3) ... [2022-12-13 20:52:15,547 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b7b1a00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:15, skipping insertion in model container [2022-12-13 20:52:15,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:15" (3/3) ... [2022-12-13 20:52:15,548 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:15,571 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:52:15,571 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:52:15,606 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:52:15,610 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;@2554ca56, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:52:15,610 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:52:15,613 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 20:52:15,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:52:15,618 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:15,619 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:15,619 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:52:15,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:15,625 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 20:52:15,634 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:52:15,634 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2067576167] [2022-12-13 20:52:15,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:15,635 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:52:15,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:15,761 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:52:15,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:15,803 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:52:15,804 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:52:15,805 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:52:15,806 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:52:15,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:52:15,811 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:52:15,814 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:52:15,834 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:52:15 BoogieIcfgContainer [2022-12-13 20:52:15,834 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:52:15,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:52:15,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:52:15,835 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:52:15,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:15" (3/4) ... [2022-12-13 20:52:15,838 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:52:15,839 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:52:15,839 INFO L158 Benchmark]: Toolchain (without parser) took 1515.57ms. Allocated memory is still 130.0MB. Free memory was 74.9MB in the beginning and 84.6MB in the end (delta: -9.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:15,840 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:15,840 INFO L158 Benchmark]: CACSL2BoogieTranslator took 871.02ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 66.0MB in the end (delta: 8.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 20:52:15,841 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.53ms. Allocated memory is still 130.0MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:15,842 INFO L158 Benchmark]: Boogie Preprocessor took 24.15ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:15,842 INFO L158 Benchmark]: RCFGBuilder took 275.89ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 49.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:52:15,842 INFO L158 Benchmark]: TraceAbstraction took 290.26ms. Allocated memory is still 130.0MB. Free memory was 48.8MB in the beginning and 85.1MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:15,843 INFO L158 Benchmark]: Witness Printer took 4.01ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 84.6MB in the end (delta: 463.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:15,846 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 104.9MB. Free memory was 73.1MB in the beginning and 73.1MB in the end (delta: 77.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 871.02ms. Allocated memory is still 130.0MB. Free memory was 74.5MB in the beginning and 66.0MB in the end (delta: 8.5MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.53ms. Allocated memory is still 130.0MB. Free memory was 66.0MB in the beginning and 63.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.15ms. Allocated memory is still 130.0MB. Free memory was 63.4MB in the beginning and 61.8MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 275.89ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 49.3MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 290.26ms. Allocated memory is still 130.0MB. Free memory was 48.8MB in the beginning and 85.1MB in the end (delta: -36.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.01ms. Allocated memory is still 130.0MB. Free memory was 85.1MB in the beginning and 84.6MB in the end (delta: 463.4kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] CWE191_Integer_Underflow__int_fgets_sub_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: 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: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:52:15,862 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 --- 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 20:52:17,506 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:52:17,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:52:17,527 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:52:17,528 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:52:17,529 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:52:17,530 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:52:17,532 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:52:17,533 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:52:17,534 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:52:17,535 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:52:17,536 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:52:17,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:52:17,538 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:52:17,539 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:52:17,540 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:52:17,541 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:52:17,542 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:52:17,544 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:52:17,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:52:17,547 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:52:17,548 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:52:17,550 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:52:17,550 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:52:17,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:52:17,555 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:52:17,555 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:52:17,556 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:52:17,556 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:52:17,557 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:52:17,558 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:52:17,558 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:52:17,559 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:52:17,560 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:52:17,561 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:52:17,561 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:52:17,562 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:52:17,562 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:52:17,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:52:17,563 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:52:17,564 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:52:17,565 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:52:17,588 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:52:17,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:52:17,589 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:52:17,589 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:52:17,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:52:17,590 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:52:17,590 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:52:17,590 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:52:17,591 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:52:17,591 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:52:17,591 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:52:17,591 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:52:17,591 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:52:17,592 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:52:17,592 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:52:17,592 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:52:17,592 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:52:17,592 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:52:17,593 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:52:17,593 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:52:17,593 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:52:17,593 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:52:17,593 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:52:17,593 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:52:17,594 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:52:17,594 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:17,594 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:52:17,594 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:52:17,594 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:52:17,595 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:52:17,599 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:52:17,599 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:52:17,599 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:52:17,599 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:52:17,599 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:52:17,600 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:52:17,600 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:52:17,600 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_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e213e4881a4fb7a4a271c29da39e29e45ce4201f3fcd8c2e6b516fd3e1e71f0 [2022-12-13 20:52:17,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:52:17,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:52:17,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:52:17,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:52:17,816 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:52:17,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:20,507 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:52:20,761 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:52:20,762 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:20,779 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/5fa451991/5c089ca9b39546adbfc2e7ed219ac53c/FLAG0ddfa8a6f [2022-12-13 20:52:20,790 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/data/5fa451991/5c089ca9b39546adbfc2e7ed219ac53c [2022-12-13 20:52:20,793 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:52:20,794 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:52:20,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:20,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:52:20,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:52:20,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:20" (1/1) ... [2022-12-13 20:52:20,799 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@280f0aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:20, skipping insertion in model container [2022-12-13 20:52:20,799 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:52:20" (1/1) ... [2022-12-13 20:52:20,804 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:52:20,850 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:52:21,136 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:21,446 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:21,450 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:21,451 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:21,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:21,453 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:21,471 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:21,473 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:21,474 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:21,485 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:52:21,500 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:52:21,535 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:52:21,536 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:21,537 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:52:21,539 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:21,539 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:52:21,545 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:52:21,546 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:52:21,547 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:52:21,639 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:52:21,639 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21 WrapperNode [2022-12-13 20:52:21,639 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:52:21,640 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:21,640 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:52:21,640 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:52:21,646 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,664 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,679 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 20:52:21,680 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:52:21,680 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:52:21,680 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:52:21,681 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:52:21,687 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,687 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,690 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,696 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,697 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,699 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,702 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:52:21,703 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:52:21,703 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:52:21,703 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:52:21,704 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (1/1) ... [2022-12-13 20:52:21,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:52:21,719 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:52:21,730 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:52:21,732 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:52:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:52:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:52:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:52:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:52:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:52:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 20:52:21,876 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:52:21,877 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:52:21,993 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:52:21,999 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:52:21,999 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:52:22,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:22 BoogieIcfgContainer [2022-12-13 20:52:22,001 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:52:22,003 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:52:22,004 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:52:22,006 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:52:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:52:20" (1/3) ... [2022-12-13 20:52:22,007 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2128c7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:22, skipping insertion in model container [2022-12-13 20:52:22,007 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:52:21" (2/3) ... [2022-12-13 20:52:22,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2128c7d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:52:22, skipping insertion in model container [2022-12-13 20:52:22,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:22" (3/3) ... [2022-12-13 20:52:22,009 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_45_bad.i [2022-12-13 20:52:22,025 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:52:22,025 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:52:22,058 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:52:22,063 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;@4079fff2, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:52:22,063 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:52:22,066 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 20:52:22,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:52:22,072 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:52:22,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:52:22,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:52:22,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:52:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 20:52:22,088 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:52:22,089 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [835733623] [2022-12-13 20:52:22,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:52:22,089 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 20:52:22,089 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:52:22,090 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 20:52:22,091 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 20:52:22,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:22,304 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:52:22,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:52:22,367 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:52:22,368 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:52:22,370 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:52:22,371 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:52:22,397 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 20:52:22,573 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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 20:52:22,586 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 20:52:22,598 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:52:22,662 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:52:22 BoogieIcfgContainer [2022-12-13 20:52:22,662 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:52:22,664 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:52:22,664 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:52:22,664 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:52:22,666 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:52:22" (3/4) ... [2022-12-13 20:52:22,673 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:52:22,673 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:52:22,675 INFO L158 Benchmark]: Toolchain (without parser) took 1880.30ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.2MB in the beginning and 42.7MB in the end (delta: 7.5MB). Peak memory consumption was 28.3MB. Max. memory is 16.1GB. [2022-12-13 20:52:22,676 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 56.6MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:22,677 INFO L158 Benchmark]: CACSL2BoogieTranslator took 845.10ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.0MB in the beginning and 56.9MB in the end (delta: -6.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2022-12-13 20:52:22,678 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.77ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 54.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:52:22,679 INFO L158 Benchmark]: Boogie Preprocessor took 22.15ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 51.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:22,679 INFO L158 Benchmark]: RCFGBuilder took 298.11ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 60.9MB in the end (delta: -9.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. [2022-12-13 20:52:22,680 INFO L158 Benchmark]: TraceAbstraction took 659.00ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 42.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 20:52:22,680 INFO L158 Benchmark]: Witness Printer took 9.60ms. Allocated memory is still 92.3MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:52:22,684 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 56.6MB. Free memory is still 35.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 845.10ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 50.0MB in the beginning and 56.9MB in the end (delta: -6.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.77ms. Allocated memory is still 92.3MB. Free memory was 56.9MB in the beginning and 54.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.15ms. Allocated memory is still 92.3MB. Free memory was 53.6MB in the beginning and 51.9MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 298.11ms. Allocated memory is still 92.3MB. Free memory was 51.5MB in the beginning and 60.9MB in the end (delta: -9.4MB). Peak memory consumption was 12.2MB. Max. memory is 16.1GB. * TraceAbstraction took 659.00ms. Allocated memory is still 92.3MB. Free memory was 60.1MB in the beginning and 42.7MB in the end (delta: 17.4MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 9.60ms. Allocated memory is still 92.3MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1567. 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); [L1548] static int CWE191_Integer_Underflow__int_fgets_sub_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1580] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, 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) [L1580] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_sub_45_badData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL CWE191_Integer_Underflow__int_fgets_sub_45_bad() [L1561] int data; [L1562] data = 0 [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1565] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1567] data = atoi(inputBuffer) [L1564] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1574] CWE191_Integer_Underflow__int_fgets_sub_45_badData = data [L1575] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_sub_45_badData; VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1555] data - 1 VAL [CWE191_Integer_Underflow__int_fgets_sub_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_sub_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_sub_45_goodG2BData=0, data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:52:22,703 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dc0a256-b23e-4e95-96ba-bf87eefe0e16/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