./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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_52dc8066-88b0-4351-8749-0e96866c06e7/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 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- 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 11:38:28,077 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:38:28,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:38:28,090 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:38:28,090 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:38:28,091 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:38:28,092 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:38:28,092 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:38:28,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:38:28,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:38:28,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:38:28,095 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:38:28,095 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:38:28,096 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:38:28,097 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:38:28,098 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:38:28,098 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:38:28,099 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:38:28,100 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:38:28,101 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:38:28,102 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:38:28,102 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:38:28,103 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:38:28,104 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:38:28,105 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:38:28,106 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:38:28,106 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:38:28,106 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:38:28,107 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:38:28,107 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:38:28,107 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:38:28,108 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:38:28,109 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:38:28,109 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:38:28,110 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:38:28,110 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:38:28,111 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:38:28,111 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:38:28,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:38:28,111 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:38:28,112 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:38:28,112 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 11:38:28,138 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:38:28,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:38:28,139 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:38:28,139 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:38:28,146 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:38:28,146 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:38:28,147 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:38:28,147 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:38:28,147 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:38:28,147 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:38:28,147 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:38:28,147 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:38:28,148 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:38:28,149 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:38:28,149 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 11:38:28,149 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 11:38:28,150 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:38:28,150 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:38:28,150 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:38:28,150 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:38:28,150 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:38:28,150 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_52dc8066-88b0-4351-8749-0e96866c06e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2022-12-13 11:38:28,335 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:38:28,351 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:38:28,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:38:28,354 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:38:28,354 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:38:28,355 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:30,974 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:38:31,208 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:38:31,209 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:31,221 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/84a707511/82eba81abacc4fcb9724ea327b2cd4e5/FLAGb37fb0af7 [2022-12-13 11:38:31,231 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/84a707511/82eba81abacc4fcb9724ea327b2cd4e5 [2022-12-13 11:38:31,233 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:38:31,234 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:38:31,235 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:38:31,235 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:38:31,238 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:38:31,238 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:31,239 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1532a308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31, skipping insertion in model container [2022-12-13 11:38:31,241 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:31,246 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:38:31,278 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:38:31,494 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:38:31,764 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:38:31,769 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:31,771 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:31,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:31,774 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:31,798 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:38:31,801 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:38:31,802 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:38:31,812 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:38:31,828 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:38:31,869 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:38:31,871 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:31,872 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:31,874 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:31,875 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:31,879 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:38:31,881 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:38:31,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:38:31,961 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:38:31,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31 WrapperNode [2022-12-13 11:38:31,962 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:38:31,963 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:38:31,963 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:38:31,963 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:38:31,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:31,995 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,018 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 60 [2022-12-13 11:38:32,018 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:38:32,019 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:38:32,019 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:38:32,019 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:38:32,026 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,026 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,028 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,033 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,035 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,036 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,037 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,038 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:38:32,039 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:38:32,039 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:38:32,039 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:38:32,040 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (1/1) ... [2022-12-13 11:38:32,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:38:32,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:38:32,066 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:38:32,068 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:38:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:38:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:38:32,097 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:38:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:38:32,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 11:38:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:38:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:38:32,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:38:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:38:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:38:32,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 11:38:32,215 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:38:32,217 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:38:32,323 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:38:32,328 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:38:32,328 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:38:32,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:32 BoogieIcfgContainer [2022-12-13 11:38:32,329 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:38:32,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:38:32,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:38:32,333 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:38:32,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:38:31" (1/3) ... [2022-12-13 11:38:32,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d04ea6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:38:32, skipping insertion in model container [2022-12-13 11:38:32,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:31" (2/3) ... [2022-12-13 11:38:32,334 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d04ea6e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:38:32, skipping insertion in model container [2022-12-13 11:38:32,334 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:32" (3/3) ... [2022-12-13 11:38:32,335 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:32,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:38:32,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:38:32,384 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:38:32,389 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;@743912e0, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:38:32,389 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:38:32,392 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 11:38:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:38:32,398 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:38:32,398 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:38:32,399 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:38:32,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:38:32,403 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 11:38:32,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 11:38:32,410 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763694829] [2022-12-13 11:38:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:38:32,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 11:38:32,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:38:32,510 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:38:32,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:38:32,546 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 11:38:32,548 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:38:32,549 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:38:32,550 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:38:32,551 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 11:38:32,554 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:38:32,558 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:38:32,576 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:38:32 BoogieIcfgContainer [2022-12-13 11:38:32,576 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:38:32,577 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:38:32,577 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:38:32,577 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:38:32,577 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:32" (3/4) ... [2022-12-13 11:38:32,580 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:38:32,580 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:38:32,581 INFO L158 Benchmark]: Toolchain (without parser) took 1346.14ms. Allocated memory is still 144.7MB. Free memory was 109.3MB in the beginning and 79.7MB in the end (delta: 29.5MB). Peak memory consumption was 29.6MB. Max. memory is 16.1GB. [2022-12-13 11:38:32,581 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 144.7MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:32,581 INFO L158 Benchmark]: CACSL2BoogieTranslator took 727.28ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 46.4MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-12-13 11:38:32,582 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.52ms. Allocated memory is still 144.7MB. Free memory was 46.4MB in the beginning and 112.0MB in the end (delta: -65.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. [2022-12-13 11:38:32,582 INFO L158 Benchmark]: Boogie Preprocessor took 19.76ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:32,582 INFO L158 Benchmark]: RCFGBuilder took 290.47ms. Allocated memory is still 144.7MB. Free memory was 110.7MB in the beginning and 97.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 11:38:32,582 INFO L158 Benchmark]: TraceAbstraction took 245.39ms. Allocated memory is still 144.7MB. Free memory was 96.5MB in the beginning and 79.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-13 11:38:32,583 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 144.7MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:32,584 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 144.7MB. Free memory is still 111.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 727.28ms. Allocated memory is still 144.7MB. Free memory was 108.8MB in the beginning and 46.4MB in the end (delta: 62.4MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.52ms. Allocated memory is still 144.7MB. Free memory was 46.4MB in the beginning and 112.0MB in the end (delta: -65.6MB). Peak memory consumption was 6.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 19.76ms. Allocated memory is still 144.7MB. Free memory was 112.0MB in the beginning and 110.7MB in the end (delta: 1.3MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 290.47ms. Allocated memory is still 144.7MB. Free memory was 110.7MB in the beginning and 97.3MB in the end (delta: 13.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 245.39ms. Allocated memory is still 144.7MB. Free memory was 96.5MB in the beginning and 79.7MB in the end (delta: 16.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 144.7MB. Free memory is still 79.7MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=1073741830, argc=1073741830, argv={1073741828:1073741831}, argv={1073741828:1073741831}, CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 11:38:32,600 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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_52dc8066-88b0-4351-8749-0e96866c06e7/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 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 --- 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 11:38:34,265 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 11:38:34,267 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 11:38:34,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 11:38:34,286 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 11:38:34,287 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 11:38:34,288 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 11:38:34,290 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 11:38:34,291 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 11:38:34,292 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 11:38:34,293 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 11:38:34,294 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 11:38:34,294 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 11:38:34,295 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 11:38:34,296 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 11:38:34,297 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 11:38:34,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 11:38:34,308 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 11:38:34,310 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 11:38:34,311 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 11:38:34,313 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 11:38:34,314 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 11:38:34,315 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 11:38:34,316 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 11:38:34,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 11:38:34,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 11:38:34,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 11:38:34,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 11:38:34,321 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 11:38:34,322 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 11:38:34,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 11:38:34,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 11:38:34,323 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 11:38:34,324 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 11:38:34,325 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 11:38:34,325 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 11:38:34,326 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 11:38:34,326 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 11:38:34,326 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 11:38:34,327 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 11:38:34,327 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 11:38:34,328 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 11:38:34,349 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 11:38:34,349 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 11:38:34,349 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 11:38:34,349 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 11:38:34,350 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 11:38:34,350 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 11:38:34,351 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 11:38:34,351 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 11:38:34,351 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 11:38:34,351 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 11:38:34,351 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 11:38:34,352 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 11:38:34,353 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 11:38:34,353 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 11:38:34,353 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 11:38:34,353 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 11:38:34,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 11:38:34,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 11:38:34,354 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 11:38:34,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 11:38:34,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:38:34,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 11:38:34,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 11:38:34,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 11:38:34,355 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 11:38:34,356 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 11:38:34,356 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_52dc8066-88b0-4351-8749-0e96866c06e7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 688ad4d5fd82d8d25ee04a380b8cb7ec8cfce77a176f9dae3e918c234f392467 [2022-12-13 11:38:34,587 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 11:38:34,602 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 11:38:34,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 11:38:34,605 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 11:38:34,605 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 11:38:34,606 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:37,175 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 11:38:37,427 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 11:38:37,427 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:37,440 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/3104d2997/eb03bbd8688c422681e19ba5aaeec7d6/FLAG6490fda99 [2022-12-13 11:38:37,451 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/data/3104d2997/eb03bbd8688c422681e19ba5aaeec7d6 [2022-12-13 11:38:37,452 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 11:38:37,453 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 11:38:37,454 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 11:38:37,454 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 11:38:37,457 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 11:38:37,457 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:38:37" (1/1) ... [2022-12-13 11:38:37,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@77b93bcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:37, skipping insertion in model container [2022-12-13 11:38:37,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 11:38:37" (1/1) ... [2022-12-13 11:38:37,463 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 11:38:37,496 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 11:38:37,772 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:38:38,130 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:38:38,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:38,135 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:38,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:38,137 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:38,154 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:38:38,155 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:38:38,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:38:38,166 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 11:38:38,179 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 11:38:38,211 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 11:38:38,212 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:38,213 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 11:38:38,214 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:38,215 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 11:38:38,218 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 11:38:38,219 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 11:38:38,220 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 11:38:38,322 INFO L208 MainTranslator]: Completed translation [2022-12-13 11:38:38,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38 WrapperNode [2022-12-13 11:38:38,323 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 11:38:38,323 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 11:38:38,324 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 11:38:38,324 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 11:38:38,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,353 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,371 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 11:38:38,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 11:38:38,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 11:38:38,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 11:38:38,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 11:38:38,379 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,384 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,384 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,394 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,399 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,401 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 11:38:38,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 11:38:38,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 11:38:38,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 11:38:38,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (1/1) ... [2022-12-13 11:38:38,413 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 11:38:38,420 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 11:38:38,429 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 11:38:38,431 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 11:38:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 11:38:38,455 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 11:38:38,455 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 11:38:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 11:38:38,456 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 11:38:38,577 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 11:38:38,578 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 11:38:38,685 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 11:38:38,690 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 11:38:38,690 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 11:38:38,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:38 BoogieIcfgContainer [2022-12-13 11:38:38,692 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 11:38:38,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 11:38:38,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 11:38:38,696 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 11:38:38,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 11:38:37" (1/3) ... [2022-12-13 11:38:38,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32335146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:38:38, skipping insertion in model container [2022-12-13 11:38:38,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 11:38:38" (2/3) ... [2022-12-13 11:38:38,697 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32335146 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 11:38:38, skipping insertion in model container [2022-12-13 11:38:38,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:38" (3/3) ... [2022-12-13 11:38:38,698 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_postdec_45_bad.i [2022-12-13 11:38:38,711 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 11:38:38,711 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 11:38:38,747 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 11:38:38,752 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;@31536ac8, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 11:38:38,752 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 11:38:38,755 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 11:38:38,761 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 11:38:38,761 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 11:38:38,761 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 11:38:38,762 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 11:38:38,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 11:38:38,766 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-12-13 11:38:38,775 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 11:38:38,775 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1736238458] [2022-12-13 11:38:38,775 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 11:38:38,776 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 11:38:38,776 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 11:38:38,777 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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 11:38:38,778 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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 11:38:38,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:38:38,901 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 11:38:38,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 11:38:38,962 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 11:38:38,964 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 11:38:38,965 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 11:38:38,967 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 11:38:38,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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 11:38:39,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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 11:38:39,172 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-13 11:38:39,177 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 11:38:39,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 11:38:39 BoogieIcfgContainer [2022-12-13 11:38:39,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 11:38:39,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 11:38:39,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 11:38:39,199 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 11:38:39,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 11:38:38" (3/4) ... [2022-12-13 11:38:39,202 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 11:38:39,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 11:38:39,204 INFO L158 Benchmark]: Toolchain (without parser) took 1750.05ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 46.3MB in the beginning and 46.7MB in the end (delta: -490.4kB). Peak memory consumption was 22.0MB. Max. memory is 16.1GB. [2022-12-13 11:38:39,204 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:39,205 INFO L158 Benchmark]: CACSL2BoogieTranslator took 868.91ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 59.0MB in the end (delta: -12.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. [2022-12-13 11:38:39,205 INFO L158 Benchmark]: Boogie Procedure Inliner took 47.76ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:38:39,206 INFO L158 Benchmark]: Boogie Preprocessor took 34.58ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 11:38:39,206 INFO L158 Benchmark]: RCFGBuilder took 284.85ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 39.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 11:38:39,206 INFO L158 Benchmark]: TraceAbstraction took 504.95ms. Allocated memory is still 90.2MB. Free memory was 39.4MB in the beginning and 47.2MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:39,207 INFO L158 Benchmark]: Witness Printer took 3.79ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 46.7MB in the end (delta: 487.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 11:38:39,209 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 50.3MB. Free memory was 28.4MB in the beginning and 28.3MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 868.91ms. Allocated memory was 71.3MB in the beginning and 90.2MB in the end (delta: 18.9MB). Free memory was 46.1MB in the beginning and 59.0MB in the end (delta: -12.9MB). Peak memory consumption was 35.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 47.76ms. Allocated memory is still 90.2MB. Free memory was 59.0MB in the beginning and 56.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.58ms. Allocated memory is still 90.2MB. Free memory was 56.2MB in the beginning and 54.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 284.85ms. Allocated memory is still 90.2MB. Free memory was 54.1MB in the beginning and 39.6MB in the end (delta: 14.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 504.95ms. Allocated memory is still 90.2MB. Free memory was 39.4MB in the beginning and 47.2MB in the end (delta: -7.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.79ms. Allocated memory is still 90.2MB. Free memory was 47.2MB in the beginning and 46.7MB in the end (delta: 487.0kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1568. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] static int CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1549] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData; [L1550] static int CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData; VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1581] CALL printLine("Calling bad()...") VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1581] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE191_Integer_Underflow__int_fgets_postdec_45_badData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1582] CALL CWE191_Integer_Underflow__int_fgets_postdec_45_bad() [L1562] int data; [L1563] data = 0 [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1566] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1568] data = atoi(inputBuffer) [L1565] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1575] CWE191_Integer_Underflow__int_fgets_postdec_45_badData = data [L1576] CALL badSink() [L1553] int data = CWE191_Integer_Underflow__int_fgets_postdec_45_badData; [L1555] data-- VAL [CWE191_Integer_Underflow__int_fgets_postdec_45_badData=-2147483648, CWE191_Integer_Underflow__int_fgets_postdec_45_goodB2GData=0, CWE191_Integer_Underflow__int_fgets_postdec_45_goodG2BData=0, data=-2147483648, data--=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1555]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 11:38:39,223 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_52dc8066-88b0-4351-8749-0e96866c06e7/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