./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_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_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/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_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/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_42ff81a9-4958-4285-a7c0-b7db20da019f/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 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:19:44,924 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:19:44,926 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:19:44,946 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:19:44,947 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:19:44,948 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:19:44,949 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:19:44,950 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:19:44,952 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:19:44,953 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:19:44,954 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:19:44,955 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:19:44,955 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:19:44,956 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:19:44,957 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:19:44,958 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:19:44,959 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:19:44,960 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:19:44,962 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:19:44,963 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:19:44,965 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:19:44,967 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:19:44,967 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:19:44,968 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:19:44,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:19:44,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:19:44,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:19:44,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:19:44,971 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:19:44,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:19:44,972 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:19:44,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:19:44,973 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:19:44,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:19:44,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:19:44,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:19:44,974 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:19:44,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:19:44,975 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:19:44,975 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:19:44,976 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:19:44,976 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 22:19:44,989 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:19:44,989 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:19:44,990 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:19:44,990 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:19:44,990 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:19:44,990 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:19:44,991 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:19:44,991 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:19:44,991 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:19:44,992 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:19:44,992 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:19:44,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:19:44,993 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:19:44,993 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_42ff81a9-4958-4285-a7c0-b7db20da019f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f [2022-12-13 22:19:45,164 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:19:45,180 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:19:45,182 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:19:45,183 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:19:45,183 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:19:45,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:47,686 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:19:47,921 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:19:47,921 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:47,937 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/07bf0bb7a/c65efa68f87d4169991369462ce81321/FLAG5f861173d [2022-12-13 22:19:48,257 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/07bf0bb7a/c65efa68f87d4169991369462ce81321 [2022-12-13 22:19:48,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:19:48,261 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:19:48,263 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:19:48,263 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:19:48,267 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:19:48,268 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:19:48" (1/1) ... [2022-12-13 22:19:48,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c32c595 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:48, skipping insertion in model container [2022-12-13 22:19:48,270 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:19:48" (1/1) ... [2022-12-13 22:19:48,278 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:19:48,313 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:19:48,546 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:19:48,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:19:48,942 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:48,943 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:48,945 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:48,945 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:48,961 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:19:48,964 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:19:48,967 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:19:48,975 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:19:48,989 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:19:49,024 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:19:49,026 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:49,026 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:49,028 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:49,029 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:49,032 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:19:49,034 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:19:49,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:19:49,122 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:19:49,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49 WrapperNode [2022-12-13 22:19:49,123 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:19:49,123 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:19:49,124 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:19:49,124 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:19:49,129 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,143 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,159 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 58 [2022-12-13 22:19:49,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:19:49,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:19:49,160 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:19:49,160 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:19:49,167 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,167 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,168 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,169 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,172 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,174 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,177 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:19:49,178 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:19:49,178 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:19:49,178 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:19:49,178 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (1/1) ... [2022-12-13 22:19:49,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:19:49,193 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:19:49,205 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:19:49,207 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 22:19:49,234 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:19:49,234 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:19:49,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:19:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:19:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 22:19:49,235 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 22:19:49,335 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:19:49,337 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:19:49,422 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:19:49,426 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:19:49,426 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:19:49,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:49 BoogieIcfgContainer [2022-12-13 22:19:49,428 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:19:49,430 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:19:49,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:19:49,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:19:49,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:19:48" (1/3) ... [2022-12-13 22:19:49,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9bdb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:19:49, skipping insertion in model container [2022-12-13 22:19:49,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:49" (2/3) ... [2022-12-13 22:19:49,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c9bdb7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:19:49, skipping insertion in model container [2022-12-13 22:19:49,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:49" (3/3) ... [2022-12-13 22:19:49,434 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:49,448 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:19:49,448 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:19:49,484 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:19:49,489 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;@26bdd61e, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:19:49,489 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:19:49,492 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 22:19:49,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 22:19:49,498 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:19:49,499 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:19:49,499 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:19:49,503 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:19:49,503 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 22:19:49,511 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:19:49,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745558720] [2022-12-13 22:19:49,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:19:49,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:19:49,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:19:49,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 22:19:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:19:49,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:19:49,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 22:19:49,812 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745558720] [2022-12-13 22:19:49,813 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745558720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:19:49,813 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:19:49,813 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 22:19:49,815 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459405884] [2022-12-13 22:19:49,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:19:49,819 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 22:19:49,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 22:19:49,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 22:19:49,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 22:19:49,842 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:19:49,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:19:49,875 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 22:19:49,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 22:19:49,877 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 22:19:49,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:19:49,882 INFO L225 Difference]: With dead ends: 24 [2022-12-13 22:19:49,882 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 22:19:49,884 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 22:19:49,886 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 21 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:19:49,887 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 46 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:19:49,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 22:19:49,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 22:19:49,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:19:49,908 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 22:19:49,909 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 22:19:49,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:19:49,910 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 22:19:49,910 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:19:49,910 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 22:19:49,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:19:49,911 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:19:49,911 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:19:49,911 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 22:19:49,912 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:19:49,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:19:49,912 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 22:19:49,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 22:19:49,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155451315] [2022-12-13 22:19:49,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:19:49,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 22:19:49,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:19:49,935 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:19:49,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:19:49,968 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 22:19:49,968 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:19:49,970 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 22:19:49,972 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 22:19:49,972 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 22:19:49,974 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:19:49,977 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:19:49,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:19:49 BoogieIcfgContainer [2022-12-13 22:19:49,996 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:19:49,997 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:19:49,997 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:19:49,997 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:19:49,998 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:49" (3/4) ... [2022-12-13 22:19:50,000 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:19:50,000 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:19:50,001 INFO L158 Benchmark]: Toolchain (without parser) took 1739.82ms. Allocated memory is still 130.0MB. Free memory was 93.2MB in the beginning and 70.6MB in the end (delta: 22.6MB). Peak memory consumption was 24.4MB. Max. memory is 16.1GB. [2022-12-13 22:19:50,001 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:50,002 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.37ms. Allocated memory is still 130.0MB. Free memory was 92.6MB in the beginning and 79.2MB in the end (delta: 13.4MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. [2022-12-13 22:19:50,002 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.53ms. Allocated memory is still 130.0MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:19:50,002 INFO L158 Benchmark]: Boogie Preprocessor took 17.66ms. Allocated memory is still 130.0MB. Free memory was 76.5MB in the beginning and 75.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:19:50,003 INFO L158 Benchmark]: RCFGBuilder took 250.32ms. Allocated memory is still 130.0MB. Free memory was 75.0MB in the beginning and 62.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 22:19:50,003 INFO L158 Benchmark]: TraceAbstraction took 566.87ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 70.6MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:50,003 INFO L158 Benchmark]: Witness Printer took 3.58ms. Allocated memory is still 130.0MB. Free memory is still 70.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:50,006 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 98.6MB. Free memory was 71.4MB in the beginning and 71.4MB in the end (delta: 24.3kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 860.37ms. Allocated memory is still 130.0MB. Free memory was 92.6MB in the beginning and 79.2MB in the end (delta: 13.4MB). Peak memory consumption was 53.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.53ms. Allocated memory is still 130.0MB. Free memory was 79.2MB in the beginning and 76.5MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.66ms. Allocated memory is still 130.0MB. Free memory was 76.5MB in the beginning and 75.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 250.32ms. Allocated memory is still 130.0MB. Free memory was 75.0MB in the beginning and 62.5MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 566.87ms. Allocated memory is still 130.0MB. Free memory was 61.8MB in the beginning and 70.6MB in the end (delta: -8.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.58ms. Allocated memory is still 130.0MB. Free memory is still 70.6MB. 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483649:2147483654}, argv={2147483649:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_preinc_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_52c_badSink(data) [L1582] ++data VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 46 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 22 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 22:19:50,018 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/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_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/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_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/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_42ff81a9-4958-4285-a7c0-b7db20da019f/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 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 22:19:51,743 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 22:19:51,744 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 22:19:51,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 22:19:51,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 22:19:51,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 22:19:51,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 22:19:51,775 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 22:19:51,776 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 22:19:51,776 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 22:19:51,777 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 22:19:51,778 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 22:19:51,778 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 22:19:51,778 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 22:19:51,779 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 22:19:51,780 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 22:19:51,780 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 22:19:51,781 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 22:19:51,782 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 22:19:51,783 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 22:19:51,784 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 22:19:51,785 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 22:19:51,785 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 22:19:51,786 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 22:19:51,788 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 22:19:51,789 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 22:19:51,789 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 22:19:51,789 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 22:19:51,790 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 22:19:51,790 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 22:19:51,791 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 22:19:51,791 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 22:19:51,792 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 22:19:51,792 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 22:19:51,793 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 22:19:51,793 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 22:19:51,794 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 22:19:51,794 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 22:19:51,794 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 22:19:51,794 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 22:19:51,795 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 22:19:51,796 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 22:19:51,811 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 22:19:51,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 22:19:51,812 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 22:19:51,812 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 22:19:51,812 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 22:19:51,812 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 22:19:51,813 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 22:19:51,813 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 22:19:51,813 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 22:19:51,813 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 22:19:51,814 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 22:19:51,815 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 22:19:51,815 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 22:19:51,815 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 22:19:51,815 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 22:19:51,815 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 22:19:51,816 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 22:19:51,816 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 22:19:51,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:19:51,816 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 22:19:51,816 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 22:19:51,816 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 22:19:51,817 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 22:19:51,818 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 22:19:51,818 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_42ff81a9-4958-4285-a7c0-b7db20da019f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 23dfb1860d3db11a4bf55a5abb2f67cfdd70d96e626f49ec0817ac74bf6afc3f [2022-12-13 22:19:52,035 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 22:19:52,050 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 22:19:52,052 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 22:19:52,053 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 22:19:52,053 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 22:19:52,054 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:54,646 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 22:19:54,878 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 22:19:54,878 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:54,892 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/245e74c2f/f33b1e8d12444e838431dddcb35bd988/FLAGc0a4f4757 [2022-12-13 22:19:54,903 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/data/245e74c2f/f33b1e8d12444e838431dddcb35bd988 [2022-12-13 22:19:54,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 22:19:54,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 22:19:54,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 22:19:54,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 22:19:54,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 22:19:54,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:19:54" (1/1) ... [2022-12-13 22:19:54,912 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5549f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:54, skipping insertion in model container [2022-12-13 22:19:54,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 10:19:54" (1/1) ... [2022-12-13 22:19:54,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 22:19:54,966 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 22:19:55,244 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:19:55,559 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:19:55,563 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:55,564 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:55,565 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:55,566 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:55,583 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:19:55,585 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:19:55,589 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:19:55,600 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 22:19:55,615 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 22:19:55,654 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 22:19:55,656 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:55,657 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 22:19:55,658 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:55,659 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 22:19:55,662 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 22:19:55,663 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 22:19:55,665 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 22:19:55,770 INFO L208 MainTranslator]: Completed translation [2022-12-13 22:19:55,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55 WrapperNode [2022-12-13 22:19:55,771 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 22:19:55,771 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 22:19:55,772 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 22:19:55,772 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 22:19:55,777 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,794 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,809 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 57 [2022-12-13 22:19:55,809 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 22:19:55,809 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 22:19:55,809 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 22:19:55,810 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 22:19:55,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,818 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,818 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,824 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,825 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,827 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,830 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 22:19:55,831 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 22:19:55,831 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 22:19:55,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 22:19:55,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (1/1) ... [2022-12-13 22:19:55,836 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 22:19:55,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 22:19:55,855 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 22:19:55,857 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 22:19:55,881 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 22:19:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 22:19:55,882 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 22:19:55,882 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 22:19:56,014 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 22:19:56,016 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 22:19:56,121 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 22:19:56,127 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 22:19:56,127 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 22:19:56,129 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:56 BoogieIcfgContainer [2022-12-13 22:19:56,129 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 22:19:56,132 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 22:19:56,132 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 22:19:56,135 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 22:19:56,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 10:19:54" (1/3) ... [2022-12-13 22:19:56,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd43543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:19:56, skipping insertion in model container [2022-12-13 22:19:56,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 10:19:55" (2/3) ... [2022-12-13 22:19:56,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2cd43543 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 10:19:56, skipping insertion in model container [2022-12-13 22:19:56,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:56" (3/3) ... [2022-12-13 22:19:56,137 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_52_bad.i [2022-12-13 22:19:56,156 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 22:19:56,156 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 22:19:56,188 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 22:19:56,192 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;@6f3e7e8f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 22:19:56,192 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 22:19:56,195 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 22:19:56,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 22:19:56,203 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:19:56,203 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:19:56,204 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:19:56,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:19:56,209 INFO L85 PathProgramCache]: Analyzing trace with hash -391249206, now seen corresponding path program 1 times [2022-12-13 22:19:56,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:19:56,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [305443425] [2022-12-13 22:19:56,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:19:56,222 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:19:56,222 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:19:56,223 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:19:56,224 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-13 22:19:56,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 22:19:56,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 22:19:56,358 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 22:19:56,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 22:19:56,380 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 22:19:56,380 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 22:19:56,380 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [305443425] [2022-12-13 22:19:56,380 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [305443425] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 22:19:56,381 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 22:19:56,386 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 22:19:56,387 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1768850347] [2022-12-13 22:19:56,387 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 22:19:56,390 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 22:19:56,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 22:19:56,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 22:19:56,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:19:56,412 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:19:56,426 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 22:19:56,426 INFO L93 Difference]: Finished difference Result 24 states and 27 transitions. [2022-12-13 22:19:56,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 22:19:56,427 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 22:19:56,427 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 22:19:56,431 INFO L225 Difference]: With dead ends: 24 [2022-12-13 22:19:56,432 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 22:19:56,433 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 22:19:56,436 INFO L413 NwaCegarLoop]: 26 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, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 22:19:56,436 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 22:19:56,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 22:19:56,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 22:19:56,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 22:19:56,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 22:19:56,462 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 22:19:56,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 22:19:56,463 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 22:19:56,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 22:19:56,463 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 22:19:56,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 22:19:56,464 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 22:19:56,464 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 22:19:56,474 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-13 22:19:56,665 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:19:56,666 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 22:19:56,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 22:19:56,668 INFO L85 PathProgramCache]: Analyzing trace with hash 756176556, now seen corresponding path program 1 times [2022-12-13 22:19:56,671 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 22:19:56,671 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2032951807] [2022-12-13 22:19:56,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 22:19:56,673 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:19:56,674 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 22:19:56,677 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-13 22:19:56,680 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 22:19:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:19:56,795 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 22:19:56,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 22:19:56,852 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 22:19:56,852 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 22:19:56,854 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 22:19:56,856 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 22:19:56,869 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 22:19:57,057 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-13 22:19:57,070 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 22:19:57,082 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 22:19:57,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 10:19:57 BoogieIcfgContainer [2022-12-13 22:19:57,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 22:19:57,126 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 22:19:57,126 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 22:19:57,126 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 22:19:57,126 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 10:19:56" (3/4) ... [2022-12-13 22:19:57,129 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 22:19:57,129 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 22:19:57,129 INFO L158 Benchmark]: Toolchain (without parser) took 2222.89ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 80.5MB in the end (delta: 17.4MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2022-12-13 22:19:57,129 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:57,130 INFO L158 Benchmark]: CACSL2BoogieTranslator took 863.89ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 86.3MB in the end (delta: 11.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. [2022-12-13 22:19:57,130 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.57ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 83.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 22:19:57,131 INFO L158 Benchmark]: Boogie Preprocessor took 20.69ms. Allocated memory is still 123.7MB. Free memory was 83.3MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 22:19:57,131 INFO L158 Benchmark]: RCFGBuilder took 298.91ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 67.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 22:19:57,132 INFO L158 Benchmark]: TraceAbstraction took 993.41ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 80.5MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:57,132 INFO L158 Benchmark]: Witness Printer took 2.98ms. Allocated memory is still 123.7MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 22:19:57,135 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 75.5MB. Free memory is still 53.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 863.89ms. Allocated memory is still 123.7MB. Free memory was 97.9MB in the beginning and 86.3MB in the end (delta: 11.7MB). Peak memory consumption was 63.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.57ms. Allocated memory is still 123.7MB. Free memory was 86.3MB in the beginning and 83.3MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.69ms. Allocated memory is still 123.7MB. Free memory was 83.3MB in the beginning and 81.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 298.91ms. Allocated memory is still 123.7MB. Free memory was 81.2MB in the beginning and 67.3MB in the end (delta: 13.9MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 993.41ms. Allocated memory is still 123.7MB. Free memory was 66.5MB in the beginning and 80.5MB in the end (delta: -14.0MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 2.98ms. Allocated memory is still 123.7MB. Free memory is still 80.5MB. 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: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1569] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_preinc_52_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_preinc_52b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_preinc_52c_badSink(data) [L1582] ++data VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1582]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 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, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 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 22:19:57,147 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_42ff81a9-4958-4285-a7c0-b7db20da019f/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample