./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_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_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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_4dadd1e1-f70c-45be-897c-caf0e080f674/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 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d --- 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 16:36:30,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:36:30,778 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:36:30,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:36:30,791 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:36:30,792 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:36:30,793 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:36:30,794 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:36:30,795 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:36:30,795 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:36:30,796 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:36:30,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:36:30,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:36:30,797 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:36:30,798 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:36:30,799 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:36:30,799 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:36:30,800 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:36:30,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:36:30,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:36:30,803 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:36:30,804 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:36:30,805 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:36:30,805 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:36:30,807 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:36:30,808 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:36:30,808 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:36:30,808 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:36:30,809 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:36:30,810 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:36:30,810 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:36:30,811 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:36:30,812 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:36:30,814 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:36:30,815 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:36:30,816 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:36:30,817 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:36:30,817 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:36:30,817 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:36:30,818 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:36:30,819 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:36:30,819 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 16:36:30,834 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:36:30,834 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:36:30,834 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:36:30,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:36:30,835 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:36:30,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:36:30,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:36:30,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:36:30,835 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:36:30,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:36:30,836 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:36:30,837 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:36:30,837 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 16:36:30,837 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:36:30,838 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:36:30,838 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:36:30,838 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:36:30,838 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:36:30,838 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_4dadd1e1-f70c-45be-897c-caf0e080f674/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d [2022-12-13 16:36:31,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:36:31,026 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:36:31,028 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:36:31,029 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:36:31,029 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:36:31,030 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:33,556 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:36:33,873 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:36:33,874 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:33,894 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/64c97643c/72608fdd9c824c4c82b5ebd4f53253b5/FLAG04265451c [2022-12-13 16:36:34,150 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/64c97643c/72608fdd9c824c4c82b5ebd4f53253b5 [2022-12-13 16:36:34,154 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:36:34,157 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:36:34,159 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:36:34,159 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:36:34,165 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:36:34,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:36:34" (1/1) ... [2022-12-13 16:36:34,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30e4e82d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:34, skipping insertion in model container [2022-12-13 16:36:34,167 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:36:34" (1/1) ... [2022-12-13 16:36:34,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:36:34,216 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:36:34,549 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:36:34,938 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:36:34,943 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:34,945 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:34,947 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:34,947 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:35,329 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:36:35,334 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:36:35,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:36:35,341 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:36:35,355 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:36:35,385 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:36:35,387 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:35,387 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:35,389 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:35,389 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:35,399 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:36:35,400 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:36:35,401 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:36:35,665 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:36:35,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35 WrapperNode [2022-12-13 16:36:35,665 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:36:35,666 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:36:35,666 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:36:35,666 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:36:35,671 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,690 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,707 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-12-13 16:36:35,708 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:36:35,708 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:36:35,708 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:36:35,708 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:36:35,715 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,715 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,717 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,717 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,724 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,724 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:36:35,726 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:36:35,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:36:35,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:36:35,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (1/1) ... [2022-12-13 16:36:35,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:36:35,740 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:36:35,749 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:36:35,751 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:36:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:36:35,780 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:36:35,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:36:35,781 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 16:36:35,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 16:36:35,895 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:36:35,897 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:36:36,016 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:36:36,021 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:36:36,021 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:36:36,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:36:36 BoogieIcfgContainer [2022-12-13 16:36:36,023 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:36:36,024 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:36:36,024 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:36:36,026 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:36:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:36:34" (1/3) ... [2022-12-13 16:36:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b5b568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:36:36, skipping insertion in model container [2022-12-13 16:36:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:35" (2/3) ... [2022-12-13 16:36:36,027 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56b5b568 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:36:36, skipping insertion in model container [2022-12-13 16:36:36,027 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:36:36" (3/3) ... [2022-12-13 16:36:36,028 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:36,041 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:36:36,042 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:36:36,076 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:36:36,080 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;@6170c405, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:36:36,081 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:36:36,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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 16:36:36,089 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:36:36,089 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:36:36,090 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:36:36,090 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:36:36,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:36:36,094 INFO L85 PathProgramCache]: Analyzing trace with hash 1450936690, now seen corresponding path program 1 times [2022-12-13 16:36:36,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:36:36,101 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329506816] [2022-12-13 16:36:36,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:36:36,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:36:36,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:36:36,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 16:36:36,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:36:36,236 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:36:36,236 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 16:36:36,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329506816] [2022-12-13 16:36:36,237 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329506816] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:36:36,237 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:36:36,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:36:36,238 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834302848] [2022-12-13 16:36:36,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:36:36,242 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:36:36,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 16:36:36,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:36:36,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:36:36,265 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:36:36,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:36:36,280 INFO L93 Difference]: Finished difference Result 39 states and 49 transitions. [2022-12-13 16:36:36,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:36:36,281 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 16:36:36,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:36:36,286 INFO L225 Difference]: With dead ends: 39 [2022-12-13 16:36:36,286 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 16:36:36,288 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:36:36,291 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:36:36,291 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 26 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:36:36,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 16:36:36,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 16:36:36,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 13 states have internal predecessors, (14), 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 16:36:36,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2022-12-13 16:36:36,316 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 11 [2022-12-13 16:36:36,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:36:36,317 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2022-12-13 16:36:36,317 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:36:36,317 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2022-12-13 16:36:36,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-13 16:36:36,318 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:36:36,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:36:36,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 16:36:36,318 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:36:36,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:36:36,319 INFO L85 PathProgramCache]: Analyzing trace with hash 346229105, now seen corresponding path program 1 times [2022-12-13 16:36:36,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 16:36:36,319 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162435779] [2022-12-13 16:36:36,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:36:36,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 16:36:36,352 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-13 16:36:36,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2101048091] [2022-12-13 16:36:36,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:36:36,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:36:36,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:36:36,353 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 16:36:36,354 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 16:36:36,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:36:36,436 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 16:36:36,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:36:36,471 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 16:36:36,471 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 16:36:36,473 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 16:36:36,475 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 16:36:36,481 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 16:36:36,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 16:36:36,679 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 16:36:36,681 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 16:36:36,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 04:36:36 BoogieIcfgContainer [2022-12-13 16:36:36,704 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 16:36:36,704 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 16:36:36,704 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 16:36:36,704 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 16:36:36,705 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:36:36" (3/4) ... [2022-12-13 16:36:36,707 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 16:36:36,707 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 16:36:36,708 INFO L158 Benchmark]: Toolchain (without parser) took 2551.85ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 112.6MB in the beginning and 86.1MB in the end (delta: 26.4MB). Peak memory consumption was 65.2MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,709 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 16:36:36,709 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1506.52ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 112.0MB in the beginning and 143.8MB in the end (delta: -31.8MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,710 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.13ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 139.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,710 INFO L158 Benchmark]: Boogie Preprocessor took 17.81ms. Allocated memory is still 188.7MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,710 INFO L158 Benchmark]: RCFGBuilder took 296.14ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 123.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,711 INFO L158 Benchmark]: TraceAbstraction took 679.69ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 87.3MB in the end (delta: 36.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,711 INFO L158 Benchmark]: Witness Printer took 3.44ms. Allocated memory is still 188.7MB. Free memory was 87.3MB in the beginning and 86.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 16:36:36,714 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 153.1MB. Free memory is still 124.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1506.52ms. Allocated memory was 153.1MB in the beginning and 188.7MB in the end (delta: 35.7MB). Free memory was 112.0MB in the beginning and 143.8MB in the end (delta: -31.8MB). Peak memory consumption was 78.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.13ms. Allocated memory is still 188.7MB. Free memory was 143.8MB in the beginning and 139.6MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.81ms. Allocated memory is still 188.7MB. Free memory was 139.6MB in the beginning and 137.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 296.14ms. Allocated memory is still 188.7MB. Free memory was 137.5MB in the beginning and 123.9MB in the end (delta: 13.6MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 679.69ms. Allocated memory is still 188.7MB. Free memory was 123.9MB in the beginning and 87.3MB in the end (delta: 36.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 3.44ms. Allocated memory is still 188.7MB. Free memory was 87.3MB in the beginning and 86.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1842. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1863] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1863] RET printLine("Calling bad()...") VAL [\old(argc)=26, argc=26, argv={27:28}, argv={27:28}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1864] CALL CWE190_Integer_Overflow__int_fgets_square_16_bad() [L1834] int data; [L1835] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1836] COND TRUE 1 [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1840] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1842] data = atoi(inputBuffer) [L1839] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=715827882, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] COND TRUE 1 VAL [data=715827882, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1854] data * data VAL [data=715827882, 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: 1854]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 26 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 16:36:36,726 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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_4dadd1e1-f70c-45be-897c-caf0e080f674/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 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d --- 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 16:36:38,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 16:36:38,324 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 16:36:38,345 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 16:36:38,346 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 16:36:38,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 16:36:38,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 16:36:38,349 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 16:36:38,350 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 16:36:38,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 16:36:38,351 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 16:36:38,352 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 16:36:38,352 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 16:36:38,353 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 16:36:38,354 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 16:36:38,355 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 16:36:38,355 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 16:36:38,356 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 16:36:38,357 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 16:36:38,358 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 16:36:38,359 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 16:36:38,360 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 16:36:38,361 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 16:36:38,362 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 16:36:38,364 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 16:36:38,365 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 16:36:38,365 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 16:36:38,366 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 16:36:38,366 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 16:36:38,367 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 16:36:38,367 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 16:36:38,368 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 16:36:38,368 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 16:36:38,369 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 16:36:38,370 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 16:36:38,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 16:36:38,370 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 16:36:38,371 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 16:36:38,371 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 16:36:38,371 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 16:36:38,372 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 16:36:38,373 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 16:36:38,389 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 16:36:38,390 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 16:36:38,390 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 16:36:38,390 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 16:36:38,391 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 16:36:38,391 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 16:36:38,392 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 16:36:38,392 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 16:36:38,392 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 16:36:38,392 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 16:36:38,392 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 16:36:38,392 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 16:36:38,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 16:36:38,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:36:38,394 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 16:36:38,394 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 16:36:38,395 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 16:36:38,396 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_4dadd1e1-f70c-45be-897c-caf0e080f674/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f6a9e6642bce13b9b7eb892092d4d72a3baa12da72e5b9945db79ca3370801d [2022-12-13 16:36:38,653 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 16:36:38,671 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 16:36:38,673 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 16:36:38,674 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 16:36:38,674 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 16:36:38,675 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:41,237 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 16:36:41,506 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 16:36:41,507 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:41,522 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/7c3e37674/67059369358e48abade557d5c565d8f6/FLAGf8e687abf [2022-12-13 16:36:41,793 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/data/7c3e37674/67059369358e48abade557d5c565d8f6 [2022-12-13 16:36:41,795 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 16:36:41,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 16:36:41,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 16:36:41,797 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 16:36:41,800 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 16:36:41,800 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:36:41" (1/1) ... [2022-12-13 16:36:41,801 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d961cef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:41, skipping insertion in model container [2022-12-13 16:36:41,801 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 04:36:41" (1/1) ... [2022-12-13 16:36:41,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 16:36:41,846 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 16:36:42,130 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:36:42,547 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:36:42,551 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:42,552 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:42,554 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:42,555 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:42,866 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:36:42,870 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:36:42,871 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:36:42,881 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 16:36:42,893 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 16:36:42,923 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 16:36:42,924 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:42,925 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 16:36:42,927 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:42,927 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 16:36:42,935 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 16:36:42,936 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 16:36:42,937 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 16:36:43,153 INFO L208 MainTranslator]: Completed translation [2022-12-13 16:36:43,153 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43 WrapperNode [2022-12-13 16:36:43,153 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 16:36:43,154 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 16:36:43,154 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 16:36:43,154 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 16:36:43,159 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,183 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,203 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-12-13 16:36:43,203 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 16:36:43,204 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 16:36:43,204 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 16:36:43,204 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 16:36:43,211 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,214 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,214 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,220 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,224 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 16:36:43,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 16:36:43,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 16:36:43,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 16:36:43,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (1/1) ... [2022-12-13 16:36:43,235 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 16:36:43,245 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 16:36:43,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 16:36:43,258 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 16:36:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 16:36:43,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 16:36:43,282 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 16:36:43,283 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 16:36:43,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 16:36:43,405 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 16:36:43,406 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 16:36:45,566 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 16:36:45,570 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 16:36:45,570 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 16:36:45,571 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:36:45 BoogieIcfgContainer [2022-12-13 16:36:45,571 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 16:36:45,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 16:36:45,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 16:36:45,575 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 16:36:45,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 04:36:41" (1/3) ... [2022-12-13 16:36:45,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e37545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:36:45, skipping insertion in model container [2022-12-13 16:36:45,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 04:36:43" (2/3) ... [2022-12-13 16:36:45,576 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e37545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 04:36:45, skipping insertion in model container [2022-12-13 16:36:45,576 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 04:36:45" (3/3) ... [2022-12-13 16:36:45,577 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_16_bad.i [2022-12-13 16:36:45,590 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 16:36:45,590 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 16:36:45,621 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 16:36:45,625 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;@12dae1a9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 16:36:45,625 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 16:36:45,628 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 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 16:36:45,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 16:36:45,633 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:36:45,634 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:36:45,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:36:45,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:36:45,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1450936690, now seen corresponding path program 1 times [2022-12-13 16:36:45,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:36:45,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1498311021] [2022-12-13 16:36:45,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:36:45,650 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 16:36:45,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:36:45,652 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 16:36:45,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 16:36:45,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 16:36:45,775 INFO L263 TraceCheckSpWp]: Trace formula consists of 47 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 16:36:45,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 16:36:45,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 16:36:45,793 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 16:36:45,793 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 16:36:45,793 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1498311021] [2022-12-13 16:36:45,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1498311021] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 16:36:45,794 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 16:36:45,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 16:36:45,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713241205] [2022-12-13 16:36:45,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 16:36:45,798 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 16:36:45,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 16:36:45,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 16:36:45,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:36:45,820 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 20 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:36:45,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 16:36:45,833 INFO L93 Difference]: Finished difference Result 40 states and 49 transitions. [2022-12-13 16:36:45,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 16:36:45,835 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 16:36:45,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 16:36:45,839 INFO L225 Difference]: With dead ends: 40 [2022-12-13 16:36:45,839 INFO L226 Difference]: Without dead ends: 17 [2022-12-13 16:36:45,841 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 16:36:45,843 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 16:36:45,843 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 16:36:45,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-13 16:36:45,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-13 16:36:45,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 16:36:45,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-13 16:36:45,866 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-12-13 16:36:45,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 16:36:45,867 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-13 16:36:45,867 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 16:36:45,867 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-13 16:36:45,868 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 16:36:45,868 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 16:36:45,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 16:36:45,882 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 16:36:46,069 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 16:36:46,071 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 16:36:46,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 16:36:46,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1512851975, now seen corresponding path program 1 times [2022-12-13 16:36:46,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 16:36:46,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799056843] [2022-12-13 16:36:46,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 16:36:46,078 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 16:36:46,079 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 16:36:46,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/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 16:36:46,086 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_4dadd1e1-f70c-45be-897c-caf0e080f674/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-12-13 16:36:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 16:36:46,219 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.