./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_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_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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_1acc41a7-9594-44f8-9f78-1d348701de96/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 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf --- 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 14:40:33,955 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:40:33,956 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:40:33,969 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:40:33,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:40:33,970 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:40:33,971 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:40:33,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:40:33,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:40:33,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:40:33,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:40:33,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:40:33,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:40:33,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:40:33,976 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:40:33,977 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:40:33,977 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:40:33,978 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:40:33,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:40:33,980 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:40:33,981 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:40:33,982 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:40:33,982 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:40:33,983 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:40:33,989 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:40:33,989 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:40:33,990 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:40:33,990 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:40:33,991 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:40:33,991 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:40:33,991 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:40:33,992 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:40:33,993 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:40:33,993 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:40:33,994 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:40:33,994 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:40:33,995 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:40:33,995 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:40:33,995 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:40:33,996 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:40:33,996 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:40:33,997 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 14:40:34,013 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:40:34,014 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:40:34,014 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:40:34,018 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:40:34,019 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:40:34,020 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:40:34,020 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:40:34,020 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:40:34,021 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:40:34,021 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:40:34,021 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:40:34,021 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 14:40:34,021 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:40:34,022 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:40:34,022 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:40:34,022 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:40:34,022 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:40:34,022 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:40:34,023 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:40:34,023 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:40:34,023 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:40:34,023 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:40:34,023 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:40:34,023 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:34,023 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:40:34,024 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:40:34,025 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:40:34,025 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_1acc41a7-9594-44f8-9f78-1d348701de96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf [2022-12-13 14:40:34,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:40:34,200 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:40:34,202 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:40:34,203 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:40:34,203 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:40:34,204 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:36,790 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:40:37,037 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:40:37,037 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:37,064 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/898f0c267/75ef00d2deb14d3e97a3692ced36ff2f/FLAG4483b2aa1 [2022-12-13 14:40:37,388 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/898f0c267/75ef00d2deb14d3e97a3692ced36ff2f [2022-12-13 14:40:37,395 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:40:37,398 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:40:37,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:37,402 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:40:37,412 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:40:37,413 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:37" (1/1) ... [2022-12-13 14:40:37,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5133df86 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:37, skipping insertion in model container [2022-12-13 14:40:37,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:37" (1/1) ... [2022-12-13 14:40:37,436 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:40:37,486 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:40:37,693 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:40:37,955 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:37,959 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:37,960 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:37,962 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:37,962 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:37,982 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:40:37,984 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 14:40:37,985 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:37,994 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:40:38,008 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:40:38,038 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:38,040 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:38,040 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:38,042 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:38,042 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:38,045 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:40:38,047 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 14:40:38,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:38,163 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:40:38,164 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38 WrapperNode [2022-12-13 14:40:38,164 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:38,165 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:38,165 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:40:38,165 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:40:38,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,203 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 58 [2022-12-13 14:40:38,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:38,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:40:38,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:40:38,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:40:38,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,213 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,213 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,216 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,218 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,221 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:40:38,221 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:40:38,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:40:38,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:40:38,222 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (1/1) ... [2022-12-13 14:40:38,226 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:38,235 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:38,244 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:40:38,246 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 14:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 14:40:38,273 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 14:40:38,273 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:40:38,274 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 14:40:38,274 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 14:40:38,374 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:40:38,375 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:40:38,466 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:40:38,471 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:40:38,471 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:40:38,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:38 BoogieIcfgContainer [2022-12-13 14:40:38,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:40:38,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:40:38,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:40:38,478 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:40:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:40:37" (1/3) ... [2022-12-13 14:40:38,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e41c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:38, skipping insertion in model container [2022-12-13 14:40:38,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:38" (2/3) ... [2022-12-13 14:40:38,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@51e41c48 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:38, skipping insertion in model container [2022-12-13 14:40:38,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:38" (3/3) ... [2022-12-13 14:40:38,481 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:38,496 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:40:38,496 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:40:38,531 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:38,538 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;@65b9183a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:38,538 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:40:38,542 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 14:40:38,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 14:40:38,549 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:38,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:38,550 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:40:38,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:38,556 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 14:40:38,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:38,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8907778] [2022-12-13 14:40:38,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:38,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:38,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:38,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 14:40:38,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:38,817 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 14:40:38,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 14:40:38,818 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8907778] [2022-12-13 14:40:38,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8907778] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:38,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:38,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 14:40:38,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244095991] [2022-12-13 14:40:38,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:38,825 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 14:40:38,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 14:40:38,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 14:40:38,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:38,853 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 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 14:40:38,878 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:38,878 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 14:40:38,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 14:40:38,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 12 [2022-12-13 14:40:38,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:38,887 INFO L225 Difference]: With dead ends: 23 [2022-12-13 14:40:38,888 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 14:40:38,890 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 14:40:38,894 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 11 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 14:40:38,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 32 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 14:40:38,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 14:40:38,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 14:40:38,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 14:40:38,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 14:40:38,929 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 14:40:38,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:38,930 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 14:40:38,930 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 14:40:38,930 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 14:40:38,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:40:38,931 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:38,932 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:38,932 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 14:40:38,932 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:40:38,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:38,933 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-12-13 14:40:38,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 14:40:38,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33775577] [2022-12-13 14:40:38,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:38,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 14:40:38,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:38,962 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:40:38,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:38,997 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 14:40:38,997 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:40:38,999 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 14:40:39,001 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 14:40:39,001 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 14:40:39,005 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:40:39,009 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:40:39,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:40:39 BoogieIcfgContainer [2022-12-13 14:40:39,030 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:40:39,030 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:40:39,030 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:40:39,031 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:40:39,031 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:38" (3/4) ... [2022-12-13 14:40:39,033 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:40:39,033 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:40:39,034 INFO L158 Benchmark]: Toolchain (without parser) took 1636.53ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 94.8MB in the beginning and 64.7MB in the end (delta: 30.1MB). Peak memory consumption was 59.5MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,034 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 134.2MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:40:39,035 INFO L158 Benchmark]: CACSL2BoogieTranslator took 763.37ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 117.3MB in the end (delta: -23.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,035 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.44ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,035 INFO L158 Benchmark]: Boogie Preprocessor took 16.83ms. Allocated memory is still 161.5MB. Free memory was 115.0MB in the beginning and 113.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,036 INFO L158 Benchmark]: RCFGBuilder took 251.57ms. Allocated memory is still 161.5MB. Free memory was 113.1MB in the beginning and 100.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,036 INFO L158 Benchmark]: TraceAbstraction took 555.08ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 64.9MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 14:40:39,036 INFO L158 Benchmark]: Witness Printer took 3.03ms. Allocated memory is still 161.5MB. Free memory was 64.9MB in the beginning and 64.7MB in the end (delta: 259.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:40:39,038 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 134.2MB. Free memory is still 99.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 763.37ms. Allocated memory was 134.2MB in the beginning and 161.5MB in the end (delta: 27.3MB). Free memory was 94.3MB in the beginning and 117.3MB in the end (delta: -23.0MB). Peak memory consumption was 69.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 38.44ms. Allocated memory is still 161.5MB. Free memory was 117.3MB in the beginning and 115.0MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.83ms. Allocated memory is still 161.5MB. Free memory was 115.0MB in the beginning and 113.1MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 251.57ms. Allocated memory is still 161.5MB. Free memory was 113.1MB in the beginning and 100.3MB in the end (delta: 12.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 555.08ms. Allocated memory is still 161.5MB. Free memory was 99.4MB in the beginning and 64.9MB in the end (delta: 34.5MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 3.03ms. Allocated memory is still 161.5MB. Free memory was 64.9MB in the beginning and 64.7MB in the end (delta: 259.5kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 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 1573. 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] [L1562] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483648:2147483652}, argv={2147483648:2147483652}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1563] CALL CWE190_Integer_Overflow__int_fgets_add_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1580] return data; VAL [\old(data)=0, \result=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1555] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 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 14:40:39,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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_1acc41a7-9594-44f8-9f78-1d348701de96/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 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf --- 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 14:40:40,579 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 14:40:40,581 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 14:40:40,599 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 14:40:40,600 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 14:40:40,601 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 14:40:40,602 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 14:40:40,603 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 14:40:40,605 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 14:40:40,606 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 14:40:40,607 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 14:40:40,608 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 14:40:40,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 14:40:40,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 14:40:40,610 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 14:40:40,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 14:40:40,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 14:40:40,613 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 14:40:40,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 14:40:40,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 14:40:40,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 14:40:40,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 14:40:40,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 14:40:40,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 14:40:40,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 14:40:40,624 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 14:40:40,624 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 14:40:40,625 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 14:40:40,626 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 14:40:40,627 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 14:40:40,627 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 14:40:40,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 14:40:40,628 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 14:40:40,629 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 14:40:40,650 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 14:40:40,650 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 14:40:40,651 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 14:40:40,651 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 14:40:40,651 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 14:40:40,652 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 14:40:40,653 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 14:40:40,654 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 14:40:40,677 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 14:40:40,677 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 14:40:40,678 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 14:40:40,678 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 14:40:40,679 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 14:40:40,679 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 14:40:40,679 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 14:40:40,680 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 14:40:40,680 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 14:40:40,680 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 14:40:40,680 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 14:40:40,680 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 14:40:40,681 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 14:40:40,681 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 14:40:40,681 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 14:40:40,681 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 14:40:40,681 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 14:40:40,682 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 14:40:40,682 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 14:40:40,682 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 14:40:40,682 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 14:40:40,682 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 14:40:40,683 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 14:40:40,683 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 14:40:40,683 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 14:40:40,683 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:40,683 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 14:40:40,684 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 14:40:40,684 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 14:40:40,684 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 14:40:40,684 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 14:40:40,684 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 14:40:40,685 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 14:40:40,685 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 14:40:40,685 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 14:40:40,685 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 14:40:40,685 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 14:40:40,686 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_1acc41a7-9594-44f8-9f78-1d348701de96/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5bddd5658ff9e2d2e177f124d84485d4ea1933fef16d13d695f9a7ad4ae9fbbf [2022-12-13 14:40:40,899 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 14:40:40,915 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 14:40:40,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 14:40:40,918 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 14:40:40,918 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 14:40:40,919 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:43,544 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 14:40:43,780 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 14:40:43,781 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:43,794 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/ad8626266/ad99f9d496db4f5fb5f4355abed7fd2b/FLAG152b8cd5d [2022-12-13 14:40:43,805 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/data/ad8626266/ad99f9d496db4f5fb5f4355abed7fd2b [2022-12-13 14:40:43,807 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 14:40:43,808 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 14:40:43,809 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:43,809 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 14:40:43,812 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 14:40:43,813 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:43" (1/1) ... [2022-12-13 14:40:43,813 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@21051fec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:43, skipping insertion in model container [2022-12-13 14:40:43,814 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 02:40:43" (1/1) ... [2022-12-13 14:40:43,819 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 14:40:43,855 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 14:40:44,107 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:40:44,414 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:44,418 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:44,419 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:44,421 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:44,422 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:44,441 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:40:44,444 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 14:40:44,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:44,469 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 14:40:44,489 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 14:40:44,522 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 14:40:44,523 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:44,524 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 14:40:44,525 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:44,526 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 14:40:44,528 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 14:40:44,530 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 14:40:44,531 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 14:40:44,619 INFO L208 MainTranslator]: Completed translation [2022-12-13 14:40:44,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44 WrapperNode [2022-12-13 14:40:44,619 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 14:40:44,620 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:44,620 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 14:40:44,620 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 14:40:44,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,642 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,657 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-12-13 14:40:44,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 14:40:44,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 14:40:44,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 14:40:44,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 14:40:44,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,665 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,667 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,667 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,672 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,674 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,678 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 14:40:44,678 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 14:40:44,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 14:40:44,678 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 14:40:44,679 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (1/1) ... [2022-12-13 14:40:44,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 14:40:44,694 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 14:40:44,703 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 14:40:44,705 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 14:40:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 14:40:44,728 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 14:40:44,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 14:40:44,846 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 14:40:44,847 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 14:40:44,961 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 14:40:44,967 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 14:40:44,967 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 14:40:44,969 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:44 BoogieIcfgContainer [2022-12-13 14:40:44,969 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 14:40:44,972 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 14:40:44,972 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 14:40:44,975 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 14:40:44,975 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 02:40:43" (1/3) ... [2022-12-13 14:40:44,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303fbac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:44, skipping insertion in model container [2022-12-13 14:40:44,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 02:40:44" (2/3) ... [2022-12-13 14:40:44,976 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@303fbac5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 02:40:44, skipping insertion in model container [2022-12-13 14:40:44,976 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:44" (3/3) ... [2022-12-13 14:40:44,977 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_61_bad.i [2022-12-13 14:40:44,993 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 14:40:44,993 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 14:40:45,030 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 14:40:45,035 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;@211be2dd, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 14:40:45,035 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 14:40:45,038 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 14:40:45,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 14:40:45,046 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:45,047 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:45,047 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:40:45,053 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:45,053 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 14:40:45,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:40:45,069 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [986500381] [2022-12-13 14:40:45,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:45,070 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 14:40:45,070 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:40:45,071 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,072 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 14:40:45,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 14:40:45,208 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 14:40:45,227 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 14:40:45,227 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 14:40:45,228 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 14:40:45,228 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [986500381] [2022-12-13 14:40:45,228 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [986500381] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 14:40:45,229 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 14:40:45,229 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 14:40:45,230 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152668248] [2022-12-13 14:40:45,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 14:40:45,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 14:40:45,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 14:40:45,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 14:40:45,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 14:40:45,267 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 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:40:45,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 14:40:45,284 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 14:40:45,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 14:40:45,285 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 12 [2022-12-13 14:40:45,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 14:40:45,291 INFO L225 Difference]: With dead ends: 23 [2022-12-13 14:40:45,291 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 14:40:45,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 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 14:40:45,296 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 14:40:45,297 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 14:40:45,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 14:40:45,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 14:40:45,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 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 14:40:45,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 14:40:45,324 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 14:40:45,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 14:40:45,325 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 14:40:45,325 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 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 14:40:45,325 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 14:40:45,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 14:40:45,326 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 14:40:45,326 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 14:40:45,336 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,527 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,527 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 14:40:45,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 14:40:45,528 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-12-13 14:40:45,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 14:40:45,529 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [558527595] [2022-12-13 14:40:45,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 14:40:45,529 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 14:40:45,530 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 14:40:45,531 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,532 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:45,600 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 14:40:45,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 14:40:45,656 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 14:40:45,656 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 14:40:45,657 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 14:40:45,659 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 14:40:45,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/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 14:40:45,867 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 14:40:45,875 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 14:40:45,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 02:40:45 BoogieIcfgContainer [2022-12-13 14:40:45,903 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 14:40:45,903 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 14:40:45,903 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 14:40:45,903 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 14:40:45,904 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 02:40:44" (3/4) ... [2022-12-13 14:40:45,906 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 14:40:45,907 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 14:40:45,907 INFO L158 Benchmark]: Toolchain (without parser) took 2098.83ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 82.4MB in the beginning and 77.2MB in the end (delta: 5.2MB). Peak memory consumption was 29.9MB. Max. memory is 16.1GB. [2022-12-13 14:40:45,908 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:40:45,908 INFO L158 Benchmark]: CACSL2BoogieTranslator took 810.51ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 72.0MB in the end (delta: 10.1MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. [2022-12-13 14:40:45,908 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.34ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 69.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 14:40:45,909 INFO L158 Benchmark]: Boogie Preprocessor took 20.01ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 14:40:45,909 INFO L158 Benchmark]: RCFGBuilder took 291.01ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 52.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 14:40:45,910 INFO L158 Benchmark]: TraceAbstraction took 931.08ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 52.3MB in the beginning and 77.2MB in the end (delta: -24.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:40:45,910 INFO L158 Benchmark]: Witness Printer took 3.41ms. Allocated memory is still 130.0MB. Free memory is still 77.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 14:40:45,913 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 56.6MB. Free memory is still 35.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 810.51ms. Allocated memory is still 107.0MB. Free memory was 82.1MB in the beginning and 72.0MB in the end (delta: 10.1MB). Peak memory consumption was 38.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.34ms. Allocated memory is still 107.0MB. Free memory was 72.0MB in the beginning and 69.1MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.01ms. Allocated memory is still 107.0MB. Free memory was 69.1MB in the beginning and 67.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.01ms. Allocated memory is still 107.0MB. Free memory was 67.0MB in the beginning and 52.9MB in the end (delta: 14.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 931.08ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 52.3MB in the beginning and 77.2MB in the end (delta: -24.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.41ms. Allocated memory is still 130.0MB. Free memory is still 77.2MB. 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 1573. 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] [L1562] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1562] 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] [L1563] CALL CWE190_Integer_Overflow__int_fgets_add_61_bad() [L1551] int data; [L1552] data = 0 [L1553] CALL, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1571] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1573] data = atoi(inputBuffer) [L1570] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1580] return data; VAL [\old(data)=0, \result=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1553] RET, EXPR CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1553] data = CWE190_Integer_Overflow__int_fgets_add_61b_badSource(data) [L1555] data + 1 VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 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 14:40:45,926 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1acc41a7-9594-44f8-9f78-1d348701de96/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample