./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_18_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_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/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_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_18_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/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_19c83161-fe53-48a4-b651-65d339615c7b/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 4474ed33aeda21aa529a5164459ae1edd2377be33bdab5376b52176dcbae2be6 --- 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 12:45:56,035 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:45:56,037 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:45:56,055 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:45:56,055 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:45:56,056 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:45:56,057 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:45:56,059 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:45:56,060 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:45:56,061 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:45:56,062 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:45:56,063 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:45:56,063 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:45:56,064 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:45:56,065 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:45:56,066 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:45:56,067 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:45:56,068 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:45:56,069 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:45:56,071 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:45:56,072 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:45:56,073 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:45:56,074 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:45:56,075 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:45:56,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 12:45:56,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 12:45:56,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 12:45:56,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 12:45:56,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 12:45:56,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 12:45:56,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:45:56,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:45:56,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:45:56,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:45:56,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:45:56,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:45:56,085 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:45:56,085 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:45:56,085 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:45:56,086 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:45:56,086 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:45:56,087 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 12:45:56,111 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:45:56,112 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:45:56,112 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 12:45:56,112 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 12:45:56,119 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 12:45:56,120 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 12:45:56,120 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:45:56,121 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:45:56,121 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:45:56,121 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:45:56,121 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 12:45:56,121 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:45:56,121 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:45:56,122 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:45:56,123 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:45:56,123 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:45:56,123 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:45:56,123 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:45:56,123 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:45:56,123 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 12:45:56,124 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 12:45:56,125 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 12:45:56,125 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 12:45:56,125 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 12:45:56,125 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_19c83161-fe53-48a4-b651-65d339615c7b/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4474ed33aeda21aa529a5164459ae1edd2377be33bdab5376b52176dcbae2be6 [2022-12-13 12:45:56,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:45:56,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:45:56,308 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:45:56,309 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:45:56,309 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:45:56,310 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_18_bad.i [2022-12-13 12:45:58,942 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:45:59,184 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:45:59,184 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fscanf_sub_18_bad.i [2022-12-13 12:45:59,196 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/data/26f513925/771ebc8b565443f5b01cc5f328d1cbb3/FLAG0d347bf26 [2022-12-13 12:45:59,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/data/26f513925/771ebc8b565443f5b01cc5f328d1cbb3 [2022-12-13 12:45:59,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:45:59,211 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 12:45:59,212 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:45:59,212 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:45:59,215 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:45:59,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:45:59,216 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f151ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59, skipping insertion in model container [2022-12-13 12:45:59,216 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:45:59,222 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:45:59,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:45:59,488 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:45:59,795 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:45:59,799 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:45:59,800 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:45:59,802 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:45:59,803 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:45:59,820 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:45:59,820 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:45:59,827 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:45:59,843 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 12:45:59,877 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 12:45:59,878 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:45:59,879 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 12:45:59,880 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:45:59,881 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 12:45:59,884 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 12:45:59,885 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:45:59,981 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:45:59,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59 WrapperNode [2022-12-13 12:45:59,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:45:59,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:45:59,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:45:59,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:45:59,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,003 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,018 INFO L138 Inliner]: procedures = 499, calls = 59, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 46 [2022-12-13 12:46:00,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:46:00,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:46:00,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:46:00,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:46:00,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,028 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,032 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,034 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,037 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:46:00,038 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:46:00,038 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:46:00,038 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:46:00,038 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (1/1) ... [2022-12-13 12:46:00,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:46:00,052 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 12:46:00,063 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 12:46:00,065 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 12:46:00,093 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:46:00,093 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:46:00,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:46:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 12:46:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:46:00,094 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:46:00,214 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 12:46:00,216 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:46:00,316 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 12:46:00,322 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:46:00,322 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 12:46:00,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:46:00 BoogieIcfgContainer [2022-12-13 12:46:00,323 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:46:00,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:46:00,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:46:00,328 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:46:00,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:45:59" (1/3) ... [2022-12-13 12:46:00,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bd090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:46:00, skipping insertion in model container [2022-12-13 12:46:00,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:45:59" (2/3) ... [2022-12-13 12:46:00,329 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34bd090f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:46:00, skipping insertion in model container [2022-12-13 12:46:00,329 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:46:00" (3/3) ... [2022-12-13 12:46:00,330 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fscanf_sub_18_bad.i [2022-12-13 12:46:00,343 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:46:00,344 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 12:46:00,379 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:46:00,383 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;@2a56ce9a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 12:46:00,384 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 12:46:00,387 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 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 12:46:00,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 12:46:00,392 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 12:46:00,393 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:46:00,393 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 12:46:00,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:46:00,397 INFO L85 PathProgramCache]: Analyzing trace with hash 1176095353, now seen corresponding path program 1 times [2022-12-13 12:46:00,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:46:00,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632328699] [2022-12-13 12:46:00,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:46:00,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:46:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:46:00,502 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 12:46:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 12:46:00,532 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 12:46:00,534 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 12:46:00,535 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 12:46:00,536 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 12:46:00,536 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:46:00,539 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 12:46:00,542 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:46:00,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:46:00 BoogieIcfgContainer [2022-12-13 12:46:00,558 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:46:00,558 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 12:46:00,558 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 12:46:00,559 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 12:46:00,559 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:46:00" (3/4) ... [2022-12-13 12:46:00,560 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 12:46:00,587 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 12:46:00,587 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 12:46:00,588 INFO L158 Benchmark]: Toolchain (without parser) took 1377.83ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 94.6MB in the end (delta: -5.2MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,588 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 134.2MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:46:00,589 INFO L158 Benchmark]: CACSL2BoogieTranslator took 770.64ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 130.3MB in the end (delta: -40.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,589 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.46ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 127.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,589 INFO L158 Benchmark]: Boogie Preprocessor took 18.36ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 125.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 12:46:00,590 INFO L158 Benchmark]: RCFGBuilder took 286.03ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 113.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,590 INFO L158 Benchmark]: TraceAbstraction took 232.63ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 96.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,590 INFO L158 Benchmark]: Witness Printer took 28.69ms. Allocated memory is still 172.0MB. Free memory was 96.6MB in the beginning and 94.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 12:46:00,592 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 134.2MB. Free memory is still 101.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 770.64ms. Allocated memory was 134.2MB in the beginning and 172.0MB in the end (delta: 37.7MB). Free memory was 89.3MB in the beginning and 130.3MB in the end (delta: -40.9MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.46ms. Allocated memory is still 172.0MB. Free memory was 130.3MB in the beginning and 127.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.36ms. Allocated memory is still 172.0MB. Free memory was 127.1MB in the beginning and 125.9MB in the end (delta: 1.1MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 286.03ms. Allocated memory is still 172.0MB. Free memory was 125.0MB in the beginning and 113.5MB in the end (delta: 11.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 232.63ms. Allocated memory is still 172.0MB. Free memory was 112.4MB in the beginning and 96.6MB in the end (delta: 15.8MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Witness Printer took 28.69ms. Allocated memory is still 172.0MB. Free memory was 96.6MB in the beginning and 94.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1558]: integer overflow possible integer overflow possible We found a 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] [L1565] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={2:0}] [L1414] COND TRUE line != ((void *)0) [L1565] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741830}, argv={1073741826:1073741830}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] CALL CWE191_Integer_Underflow__int_fscanf_sub_18_bad() [L1550] int data; [L1551] data = 0 VAL [data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] EXPR \read(data) VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1558] data - 1 VAL [\read(data)=-2147483648, data={5:0}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1558]: 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, 21 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2022-12-13 12:46:00,609 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_19c83161-fe53-48a4-b651-65d339615c7b/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)