./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_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_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 9700c829297b3a0f92af476eb51e423ad169b0e3125adb7d75785384f84a7424 --- 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 17:06:54,719 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:06:54,721 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:06:54,739 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:06:54,739 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:06:54,740 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:06:54,741 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:06:54,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:06:54,744 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:06:54,745 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:06:54,746 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:06:54,747 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:06:54,747 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:06:54,748 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:06:54,749 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:06:54,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:06:54,751 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:06:54,752 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:06:54,754 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:06:54,755 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:06:54,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:06:54,758 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:06:54,759 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:06:54,760 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:06:54,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:06:54,763 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:06:54,763 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:06:54,764 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:06:54,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:06:54,765 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:06:54,766 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:06:54,766 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:06:54,767 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:06:54,768 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:06:54,768 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:06:54,769 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:06:54,769 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:06:54,769 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:06:54,770 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:06:54,770 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:06:54,771 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:06:54,772 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 17:06:54,790 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:06:54,790 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:06:54,791 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:06:54,791 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:06:54,791 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:06:54,792 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:06:54,796 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:06:54,796 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:06:54,797 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:06:54,797 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:06:54,797 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:06:54,797 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:06:54,797 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:06:54,798 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:06:54,798 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:06:54,798 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:06:54,798 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:06:54,798 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:06:54,799 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:06:54,799 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:06:54,799 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:06:54,799 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:06:54,799 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:06:54,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:06:54,800 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:06:54,800 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:06:54,800 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:06:54,800 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:06:54,800 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:06:54,801 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:06:54,801 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:06:54,801 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:06:54,801 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:06:54,801 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:06:54,802 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_87d39c7c-683b-47f9-ba63-bf412f1b9944/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9700c829297b3a0f92af476eb51e423ad169b0e3125adb7d75785384f84a7424 [2022-12-13 17:06:54,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:06:55,000 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:06:55,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:06:55,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:06:55,003 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:06:55,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:06:57,615 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:06:57,858 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:06:57,859 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:06:57,882 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/cfd628753/6923a0e6e8da4bad8da76458a69e6516/FLAGbcbbcebe9 [2022-12-13 17:06:57,895 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/cfd628753/6923a0e6e8da4bad8da76458a69e6516 [2022-12-13 17:06:57,897 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:06:57,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:06:57,900 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:06:57,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:06:57,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:06:57,903 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:06:57" (1/1) ... [2022-12-13 17:06:57,904 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50ffdf44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:57, skipping insertion in model container [2022-12-13 17:06:57,904 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:06:57" (1/1) ... [2022-12-13 17:06:57,910 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:06:57,946 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:06:58,169 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:06:58,584 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:06:58,588 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:06:58,590 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:06:58,593 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:06:58,593 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:06:58,608 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 17:06:58,613 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:06:58,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:06:58,622 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:06:58,635 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:06:58,666 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:06:58,667 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:06:58,668 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:06:58,670 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:06:58,670 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:06:58,673 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 17:06:58,675 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:06:58,676 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:06:58,783 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:06:58,784 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58 WrapperNode [2022-12-13 17:06:58,784 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:06:58,785 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:06:58,785 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:06:58,785 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:06:58,792 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,834 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 61 [2022-12-13 17:06:58,835 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:06:58,835 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:06:58,836 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:06:58,836 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:06:58,844 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,848 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,852 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,854 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,855 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,856 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,859 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:06:58,860 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:06:58,860 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:06:58,860 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:06:58,861 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (1/1) ... [2022-12-13 17:06:58,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:06:58,878 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:06:58,889 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:06:58,891 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:06:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 17:06:58,924 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:06:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:06:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:06:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 17:06:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:06:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:06:58,925 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:06:58,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:06:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:06:58,926 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:06:59,032 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:06:59,034 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:06:59,142 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:06:59,149 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:06:59,149 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:06:59,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:06:59 BoogieIcfgContainer [2022-12-13 17:06:59,151 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:06:59,154 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:06:59,154 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:06:59,158 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:06:59,158 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:06:57" (1/3) ... [2022-12-13 17:06:59,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321bb76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:06:59, skipping insertion in model container [2022-12-13 17:06:59,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:06:58" (2/3) ... [2022-12-13 17:06:59,159 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@321bb76f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:06:59, skipping insertion in model container [2022-12-13 17:06:59,159 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:06:59" (3/3) ... [2022-12-13 17:06:59,161 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:06:59,176 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:06:59,176 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 17:06:59,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:06:59,224 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;@1000b689, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:06:59,225 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 17:06:59,228 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 17:06:59,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 17:06:59,236 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:06:59,237 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:59,237 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:06:59,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:59,243 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 17:06:59,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:59,251 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054619308] [2022-12-13 17:06:59,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:59,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:59,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:06:59,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:06:59,455 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 17:06:59,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:06:59,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054619308] [2022-12-13 17:06:59,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054619308] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:06:59,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:06:59,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:06:59,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183142319] [2022-12-13 17:06:59,458 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:06:59,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:06:59,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:06:59,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:06:59,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:06:59,484 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:06:59,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:06:59,510 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 17:06:59,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:06:59,512 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 17:06:59,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:06:59,518 INFO L225 Difference]: With dead ends: 23 [2022-12-13 17:06:59,518 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 17:06:59,520 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:06:59,522 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 10 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:06:59,523 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 32 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:06:59,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 17:06:59,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 17:06:59,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:06:59,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 17:06:59,548 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 17:06:59,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:06:59,549 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 17:06:59,549 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:06:59,549 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 17:06:59,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 17:06:59,550 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:06:59,550 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:06:59,550 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:06:59,550 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:06:59,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:06:59,551 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-12-13 17:06:59,551 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:06:59,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474710028] [2022-12-13 17:06:59,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:06:59,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:06:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:06:59,579 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:06:59,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:06:59,607 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:06:59,607 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:06:59,608 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 17:06:59,610 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 17:06:59,610 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:06:59,613 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:06:59,615 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:06:59,632 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:06:59 BoogieIcfgContainer [2022-12-13 17:06:59,633 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:06:59,633 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:06:59,633 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:06:59,633 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:06:59,634 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:06:59" (3/4) ... [2022-12-13 17:06:59,636 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:06:59,636 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:06:59,637 INFO L158 Benchmark]: Toolchain (without parser) took 1738.16ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.2MB in the beginning and 110.9MB in the end (delta: 10.3MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,637 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 167.8MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:06:59,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 884.73ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.2MB in the beginning and 163.3MB in the end (delta: -42.1MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,638 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.91ms. Allocated memory is still 201.3MB. Free memory was 163.3MB in the beginning and 160.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,638 INFO L158 Benchmark]: Boogie Preprocessor took 23.53ms. Allocated memory is still 201.3MB. Free memory was 160.2MB in the beginning and 159.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,639 INFO L158 Benchmark]: RCFGBuilder took 291.70ms. Allocated memory is still 201.3MB. Free memory was 159.1MB in the beginning and 145.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,639 INFO L158 Benchmark]: TraceAbstraction took 478.57ms. Allocated memory is still 201.3MB. Free memory was 145.5MB in the beginning and 110.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-13 17:06:59,639 INFO L158 Benchmark]: Witness Printer took 2.97ms. Allocated memory is still 201.3MB. Free memory is still 110.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:06:59,643 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 167.8MB. Free memory is still 137.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 884.73ms. Allocated memory was 167.8MB in the beginning and 201.3MB in the end (delta: 33.6MB). Free memory was 121.2MB in the beginning and 163.3MB in the end (delta: -42.1MB). Peak memory consumption was 73.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.91ms. Allocated memory is still 201.3MB. Free memory was 163.3MB in the beginning and 160.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 23.53ms. Allocated memory is still 201.3MB. Free memory was 160.2MB in the beginning and 159.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 291.70ms. Allocated memory is still 201.3MB. Free memory was 159.1MB in the beginning and 145.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 478.57ms. Allocated memory is still 201.3MB. Free memory was 145.5MB in the beginning and 110.9MB in the end (delta: 34.6MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 2.97ms. Allocated memory is still 201.3MB. Free memory is still 110.9MB. 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. 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] [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=2147483651, argc=2147483651, argv={2147483649:2147483654}, argv={2147483649:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_preinc_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] ++data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: 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: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 10 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3 IncrementalHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 22 mSDtfsCounter, 3 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:06:59,656 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 9700c829297b3a0f92af476eb51e423ad169b0e3125adb7d75785384f84a7424 --- 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 17:07:01,389 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:07:01,391 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:07:01,404 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:07:01,404 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:07:01,405 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:07:01,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:07:01,407 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:07:01,408 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:07:01,408 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:07:01,409 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:07:01,410 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:07:01,410 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:07:01,411 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:07:01,413 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:07:01,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:07:01,416 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:07:01,418 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:07:01,421 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:07:01,425 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:07:01,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:07:01,429 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:07:01,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:07:01,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:07:01,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:07:01,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:07:01,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:07:01,443 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:07:01,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:07:01,445 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:07:01,445 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:07:01,446 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:07:01,447 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:07:01,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:07:01,450 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:07:01,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:07:01,451 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:07:01,451 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:07:01,451 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:07:01,452 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:07:01,453 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:07:01,453 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 17:07:01,488 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:07:01,489 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:07:01,489 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:07:01,489 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:07:01,490 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:07:01,490 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:07:01,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:07:01,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:07:01,491 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:07:01,491 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:07:01,491 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:07:01,491 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:07:01,492 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:07:01,493 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:07:01,493 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:07:01,493 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:07:01,494 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:07:01,494 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_87d39c7c-683b-47f9-ba63-bf412f1b9944/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9700c829297b3a0f92af476eb51e423ad169b0e3125adb7d75785384f84a7424 [2022-12-13 17:07:01,732 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:07:01,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:07:01,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:07:01,753 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:07:01,753 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:07:01,754 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:07:04,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:07:04,598 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:07:04,598 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:07:04,619 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/85bd2fdad/8bded69e432c4bcea037a0b25e6544fc/FLAG979879f0b [2022-12-13 17:07:04,632 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/data/85bd2fdad/8bded69e432c4bcea037a0b25e6544fc [2022-12-13 17:07:04,635 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:07:04,636 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:07:04,638 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:07:04,638 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:07:04,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:07:04,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:07:04" (1/1) ... [2022-12-13 17:07:04,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35df0d79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:04, skipping insertion in model container [2022-12-13 17:07:04,643 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:07:04" (1/1) ... [2022-12-13 17:07:04,650 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:07:04,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:07:04,941 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:07:05,314 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:07:05,318 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:07:05,319 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:07:05,320 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:07:05,321 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:07:05,335 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 17:07:05,339 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:07:05,340 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:07:05,350 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:07:05,363 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:07:05,408 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:07:05,410 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:07:05,411 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:07:05,413 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:07:05,414 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:07:05,418 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 17:07:05,420 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:07:05,420 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:07:05,532 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:07:05,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05 WrapperNode [2022-12-13 17:07:05,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:07:05,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:07:05,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:07:05,534 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:07:05,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,577 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 59 [2022-12-13 17:07:05,577 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:07:05,578 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:07:05,578 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:07:05,578 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:07:05,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,590 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,600 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,604 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,605 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,607 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:07:05,608 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:07:05,608 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:07:05,608 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:07:05,608 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (1/1) ... [2022-12-13 17:07:05,613 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:07:05,621 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:07:05,631 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:07:05,633 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:07:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 17:07:05,668 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:07:05,668 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:07:05,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:07:05,669 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 17:07:05,785 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:07:05,786 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:07:05,902 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:07:05,908 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:07:05,908 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:07:05,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:07:05 BoogieIcfgContainer [2022-12-13 17:07:05,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:07:05,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:07:05,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:07:05,916 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:07:05,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:07:04" (1/3) ... [2022-12-13 17:07:05,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a692a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:07:05, skipping insertion in model container [2022-12-13 17:07:05,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:07:05" (2/3) ... [2022-12-13 17:07:05,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21a692a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:07:05, skipping insertion in model container [2022-12-13 17:07:05,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:07:05" (3/3) ... [2022-12-13 17:07:05,919 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_preinc_42_bad.i [2022-12-13 17:07:05,938 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:07:05,938 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 17:07:05,985 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:07:05,990 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;@373e42fc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:07:05,991 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 17:07:05,994 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 17:07:06,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 17:07:06,002 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:07:06,002 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:07:06,003 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:07:06,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:07:06,009 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-12-13 17:07:06,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:07:06,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2130494235] [2022-12-13 17:07:06,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:07:06,023 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 17:07:06,023 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:07:06,025 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,026 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:07:06,164 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 17:07:06,173 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:07:06,189 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 17:07:06,189 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:07:06,190 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:07:06,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2130494235] [2022-12-13 17:07:06,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2130494235] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:07:06,190 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:07:06,191 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 17:07:06,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [828799532] [2022-12-13 17:07:06,192 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:07:06,195 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 17:07:06,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:07:06,218 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 17:07:06,218 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:07:06,220 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:07:06,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:07:06,233 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-12-13 17:07:06,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 17:07:06,235 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2022-12-13 17:07:06,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:07:06,239 INFO L225 Difference]: With dead ends: 23 [2022-12-13 17:07:06,239 INFO L226 Difference]: Without dead ends: 15 [2022-12-13 17:07:06,241 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 17:07:06,244 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:07:06,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:07:06,257 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-13 17:07:06,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-13 17:07:06,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 12 states have internal predecessors, (13), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:07:06,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2022-12-13 17:07:06,269 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 12 [2022-12-13 17:07:06,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:07:06,271 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2022-12-13 17:07:06,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 10.0) internal successors, (10), 2 states have internal predecessors, (10), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:07:06,271 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2022-12-13 17:07:06,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 17:07:06,272 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:07:06,272 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:07:06,282 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,472 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,473 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:07:06,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:07:06,473 INFO L85 PathProgramCache]: Analyzing trace with hash -509435128, now seen corresponding path program 1 times [2022-12-13 17:07:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:07:06,474 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1478385500] [2022-12-13 17:07:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:07:06,474 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 17:07:06,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:07:06,475 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,476 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:07:06,548 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:07:06,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:07:06,601 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 17:07:06,601 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:07:06,603 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 17:07:06,604 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 17:07:06,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2022-12-13 17:07:06,805 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/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 17:07:06,816 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:07:06,826 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:07:06,877 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:07:06 BoogieIcfgContainer [2022-12-13 17:07:06,877 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:07:06,877 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:07:06,877 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:07:06,878 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:07:06,878 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:07:05" (3/4) ... [2022-12-13 17:07:06,882 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:07:06,882 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:07:06,882 INFO L158 Benchmark]: Toolchain (without parser) took 2246.14ms. Allocated memory is still 75.5MB. Free memory was 49.7MB in the beginning and 27.7MB in the end (delta: 22.0MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,883 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 54.5MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:07:06,883 INFO L158 Benchmark]: CACSL2BoogieTranslator took 895.09ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 39.4MB in the end (delta: 10.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,884 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.02ms. Allocated memory is still 75.5MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,884 INFO L158 Benchmark]: Boogie Preprocessor took 29.32ms. Allocated memory is still 75.5MB. Free memory was 36.3MB in the beginning and 34.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,885 INFO L158 Benchmark]: RCFGBuilder took 303.21ms. Allocated memory is still 75.5MB. Free memory was 34.2MB in the beginning and 39.6MB in the end (delta: -5.4MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,885 INFO L158 Benchmark]: TraceAbstraction took 963.74ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 28.1MB in the end (delta: 10.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,885 INFO L158 Benchmark]: Witness Printer took 4.51ms. Allocated memory is still 75.5MB. Free memory was 28.1MB in the beginning and 27.7MB in the end (delta: 387.6kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:07:06,888 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 54.5MB. Free memory was 32.8MB in the beginning and 32.7MB in the end (delta: 85.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 895.09ms. Allocated memory is still 75.5MB. Free memory was 49.5MB in the beginning and 39.4MB in the end (delta: 10.1MB). Peak memory consumption was 28.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.02ms. Allocated memory is still 75.5MB. Free memory was 39.4MB in the beginning and 36.3MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 29.32ms. Allocated memory is still 75.5MB. Free memory was 36.3MB in the beginning and 34.2MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 303.21ms. Allocated memory is still 75.5MB. Free memory was 34.2MB in the beginning and 39.6MB in the end (delta: -5.4MB). Peak memory consumption was 7.7MB. Max. memory is 16.1GB. * TraceAbstraction took 963.74ms. Allocated memory is still 75.5MB. Free memory was 39.0MB in the beginning and 28.1MB in the end (delta: 10.9MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. * Witness Printer took 4.51ms. Allocated memory is still 75.5MB. Free memory was 28.1MB in the beginning and 27.7MB in the end (delta: 387.6kB). 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: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1554. 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] [L1577] 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) [L1577] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] CALL CWE190_Integer_Overflow__int_fgets_preinc_42_bad() [L1565] int data; [L1566] data = 0 [L1567] CALL, EXPR badSource(data) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1552] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1554] data = atoi(inputBuffer) [L1551] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1561] return data; VAL [\old(data)=0, \result=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] RET, EXPR badSource(data) [L1567] data = badSource(data) [L1569] ++data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1569]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 11 SizeOfPredicates, 0 NumberOfNonLiveVariables, 70 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:07:06,902 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_87d39c7c-683b-47f9-ba63-bf412f1b9944/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample