./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b --- 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 13:30:28,714 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:30:28,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:30:28,728 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:30:28,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:30:28,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:30:28,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:30:28,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:30:28,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:30:28,732 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:30:28,733 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:30:28,734 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:30:28,734 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:30:28,735 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:30:28,735 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:30:28,736 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:30:28,737 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:30:28,737 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:30:28,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:30:28,739 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:30:28,740 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:30:28,742 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:30:28,742 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:30:28,743 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:30:28,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:30:28,745 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:30:28,746 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:30:28,746 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:30:28,747 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:30:28,747 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:30:28,747 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:30:28,748 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:30:28,748 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:30:28,749 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:30:28,750 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:30:28,750 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:30:28,750 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:30:28,750 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:30:28,751 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:30:28,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:30:28,752 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:30:28,752 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 13:30:28,766 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:30:28,766 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:30:28,767 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:30:28,767 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:30:28,767 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:30:28,768 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:30:28,768 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:30:28,768 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:30:28,768 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:30:28,768 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:30:28,769 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:30:28,769 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:30:28,769 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:30:28,769 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:30:28,770 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:30:28,770 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:30:28,770 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:30:28,770 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:30:28,771 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:30:28,771 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:30:28,771 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:30:28,771 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:30:28,771 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:30:28,771 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:28,772 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:30:28,772 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:30:28,773 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:30:28,773 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:30:28,773 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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b [2022-12-13 13:30:28,957 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:30:28,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:30:28,976 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:30:28,977 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:30:28,978 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:30:28,979 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:31,623 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:30:31,881 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:30:31,882 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:31,901 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/4b2fc02cd/90224ffdbecd4998b7052505402f1c69/FLAG8bd95ca16 [2022-12-13 13:30:31,912 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/4b2fc02cd/90224ffdbecd4998b7052505402f1c69 [2022-12-13 13:30:31,914 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:30:31,915 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:30:31,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:31,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:30:31,919 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:30:31,919 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:31" (1/1) ... [2022-12-13 13:30:31,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14c0fe90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:31, skipping insertion in model container [2022-12-13 13:30:31,921 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:31" (1/1) ... [2022-12-13 13:30:31,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:30:31,968 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:30:32,260 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:30:32,608 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:30:32,613 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:32,614 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:32,617 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:32,618 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:32,635 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:30:32,640 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:30:32,641 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:32,650 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:30:32,667 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:30:32,713 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:30:32,714 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:32,716 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:32,718 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:32,719 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:32,723 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:30:32,725 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:30:32,726 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:32,852 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:30:32,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32 WrapperNode [2022-12-13 13:30:32,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:32,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:32,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:30:32,854 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:30:32,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,886 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,909 INFO L138 Inliner]: procedures = 502, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-13 13:30:32,910 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:32,911 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:30:32,911 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:30:32,911 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:30:32,919 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,919 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,923 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,923 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,932 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,934 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,939 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:30:32,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:30:32,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:30:32,940 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:30:32,940 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (1/1) ... [2022-12-13 13:30:32,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:32,959 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:32,970 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:30:32,972 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 13:30:33,003 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 13:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 13:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 13:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:30:33,004 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-13 13:30:33,004 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-13 13:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 13:30:33,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:30:33,126 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:30:33,128 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:30:33,234 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:30:33,239 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:30:33,239 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:30:33,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:33 BoogieIcfgContainer [2022-12-13 13:30:33,241 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:30:33,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:30:33,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:30:33,246 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:30:33,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:30:31" (1/3) ... [2022-12-13 13:30:33,247 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1c05ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:33, skipping insertion in model container [2022-12-13 13:30:33,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:32" (2/3) ... [2022-12-13 13:30:33,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b1c05ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:33, skipping insertion in model container [2022-12-13 13:30:33,248 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:33" (3/3) ... [2022-12-13 13:30:33,249 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:33,264 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:30:33,264 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:30:33,298 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:30:33,305 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;@69667655, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:30:33,305 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:30:33,309 INFO L276 IsEmpty]: Start isEmpty. Operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 13:30:33,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 13:30:33,316 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:33,317 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:33,317 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:30:33,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:33,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1811171087, now seen corresponding path program 1 times [2022-12-13 13:30:33,331 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:33,331 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554477063] [2022-12-13 13:30:33,331 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:33,332 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:33,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:33,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 13:30:33,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:33,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2022-12-13 13:30:33,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:33,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2022-12-13 13:30:33,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:33,613 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-12-13 13:30:33,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:30:33,614 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554477063] [2022-12-13 13:30:33,615 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [554477063] provided 0 perfect and 1 imperfect interpolant sequences [2022-12-13 13:30:33,615 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1478699276] [2022-12-13 13:30:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:33,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-13 13:30:33,616 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:33,617 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-13 13:30:33,618 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-13 13:30:33,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:33,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 13:30:33,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:33,737 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-12-13 13:30:33,738 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:33,738 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1478699276] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:33,738 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-12-13 13:30:33,738 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2022-12-13 13:30:33,740 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726257620] [2022-12-13 13:30:33,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:33,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:30:33,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:30:33,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:30:33,773 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:33,775 INFO L87 Difference]: Start difference. First operand has 32 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 25 states have internal predecessors, (29), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 13:30:33,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:33,805 INFO L93 Difference]: Finished difference Result 58 states and 68 transitions. [2022-12-13 13:30:33,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:30:33,808 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2022-12-13 13:30:33,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:33,814 INFO L225 Difference]: With dead ends: 58 [2022-12-13 13:30:33,814 INFO L226 Difference]: Without dead ends: 24 [2022-12-13 13:30:33,818 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-13 13:30:33,821 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 8 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:33,822 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 76 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:33,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-12-13 13:30:33,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2022-12-13 13:30:33,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.1176470588235294) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 13:30:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2022-12-13 13:30:33,854 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 22 [2022-12-13 13:30:33,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:33,856 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2022-12-13 13:30:33,856 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 13:30:33,856 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2022-12-13 13:30:33,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-12-13 13:30:33,858 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:33,858 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:33,863 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-13 13:30:34,058 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-12-13 13:30:34,060 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:30:34,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:34,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1344832596, now seen corresponding path program 1 times [2022-12-13 13:30:34,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:30:34,064 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383693177] [2022-12-13 13:30:34,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:34,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:30:34,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:30:34,152 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:30:34,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:30:34,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:30:34,237 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:30:34,238 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 13:30:34,240 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 13:30:34,240 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:30:34,243 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:30:34,246 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:30:34,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:30:34 BoogieIcfgContainer [2022-12-13 13:30:34,279 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:30:34,280 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:30:34,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:30:34,280 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:30:34,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:33" (3/4) ... [2022-12-13 13:30:34,283 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:30:34,283 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:30:34,284 INFO L158 Benchmark]: Toolchain (without parser) took 2369.14ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 107.8MB in the beginning and 113.5MB in the end (delta: -5.7MB). Peak memory consumption was 23.2MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,285 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:34,285 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.04ms. Allocated memory is still 144.7MB. Free memory was 107.8MB in the beginning and 102.2MB in the end (delta: 5.6MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,286 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.76ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,286 INFO L158 Benchmark]: Boogie Preprocessor took 28.16ms. Allocated memory is still 144.7MB. Free memory was 99.4MB in the beginning and 97.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,287 INFO L158 Benchmark]: RCFGBuilder took 301.37ms. Allocated memory is still 144.7MB. Free memory was 97.5MB in the beginning and 84.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,287 INFO L158 Benchmark]: TraceAbstraction took 1036.06ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 83.8MB in the beginning and 113.9MB in the end (delta: -30.1MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. [2022-12-13 13:30:34,288 INFO L158 Benchmark]: Witness Printer took 3.48ms. Allocated memory is still 174.1MB. Free memory was 113.9MB in the beginning and 113.5MB in the end (delta: 369.6kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:34,291 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 144.7MB. Free memory is still 114.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.04ms. Allocated memory is still 144.7MB. Free memory was 107.8MB in the beginning and 102.2MB in the end (delta: 5.6MB). Peak memory consumption was 42.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.76ms. Allocated memory is still 144.7MB. Free memory was 102.2MB in the beginning and 99.4MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.16ms. Allocated memory is still 144.7MB. Free memory was 99.4MB in the beginning and 97.5MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 301.37ms. Allocated memory is still 144.7MB. Free memory was 97.5MB in the beginning and 84.4MB in the end (delta: 13.1MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1036.06ms. Allocated memory was 144.7MB in the beginning and 174.1MB in the end (delta: 29.4MB). Free memory was 83.8MB in the beginning and 113.9MB in the end (delta: -30.1MB). Peak memory consumption was 1.3MB. Max. memory is 16.1GB. * Witness Printer took 3.48ms. Allocated memory is still 174.1MB. Free memory was 113.9MB in the beginning and 113.5MB in the end (delta: 369.6kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] RET printLine("Calling bad()...") VAL [\old(argc)=1073741829, argc=1073741829, argv={1073741826:1073741831}, argv={1073741826:1073741831}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1576] COND TRUE data < 0 VAL [data=-1073741825, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [data=-1073741825, 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: 1578]: 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 3 procedures, 32 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8 mSDsluCounter, 76 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 26 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 50 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 105 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 4/6 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 13:30:34,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b --- 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 13:30:35,983 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:30:35,985 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:30:36,001 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:30:36,001 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:30:36,002 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:30:36,003 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:30:36,005 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:30:36,007 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:30:36,008 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:30:36,008 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:30:36,010 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:30:36,010 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:30:36,011 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:30:36,012 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:30:36,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:30:36,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:30:36,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:30:36,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:30:36,018 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:30:36,019 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:30:36,020 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:30:36,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:30:36,023 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:30:36,026 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:30:36,027 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:30:36,027 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:30:36,028 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:30:36,028 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:30:36,029 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:30:36,029 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:30:36,030 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:30:36,031 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:30:36,031 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:30:36,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:30:36,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:30:36,041 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:30:36,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:30:36,042 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:30:36,043 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:30:36,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:30:36,044 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 13:30:36,069 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:30:36,070 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:30:36,070 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:30:36,070 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:30:36,071 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:30:36,071 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:30:36,072 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:30:36,072 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:30:36,072 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:30:36,072 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:30:36,073 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 13:30:36,074 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 13:30:36,074 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 13:30:36,074 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 13:30:36,074 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:30:36,074 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:30:36,075 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:30:36,075 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:30:36,075 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:30:36,075 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:30:36,075 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:36,076 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:30:36,076 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:30:36,076 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:30:36,076 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 13:30:36,076 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 13:30:36,076 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:30:36,077 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:30:36,077 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:30:36,077 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:30:36,077 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 13:30:36,077 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:30:36,078 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_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8ed9c85949a16856c9f15031fec24cb827e576ae518a401576d428e5f7d6073b [2022-12-13 13:30:36,315 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:30:36,331 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:30:36,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:30:36,334 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:30:36,334 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:30:36,335 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:38,981 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:30:39,249 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:30:39,249 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:39,268 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/8b44537ba/8042cebe517047c1b6a493122f0a83b1/FLAGc3794d978 [2022-12-13 13:30:39,283 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/data/8b44537ba/8042cebe517047c1b6a493122f0a83b1 [2022-12-13 13:30:39,286 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:30:39,287 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:30:39,288 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:39,288 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:30:39,292 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:30:39,293 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:39" (1/1) ... [2022-12-13 13:30:39,294 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28488677 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:39, skipping insertion in model container [2022-12-13 13:30:39,294 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:30:39" (1/1) ... [2022-12-13 13:30:39,301 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:30:39,341 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:30:39,650 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:30:39,981 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:30:39,985 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:39,986 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:39,988 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:39,988 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:40,003 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:30:40,007 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:30:40,008 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:40,018 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:30:40,030 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 13:30:40,060 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 13:30:40,061 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:40,062 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 13:30:40,063 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:40,064 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 13:30:40,066 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 13:30:40,068 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 13:30:40,068 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:30:40,157 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:30:40,157 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40 WrapperNode [2022-12-13 13:30:40,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:30:40,158 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:40,158 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:30:40,158 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:30:40,165 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,192 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,212 INFO L138 Inliner]: procedures = 507, calls = 64, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 59 [2022-12-13 13:30:40,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:30:40,213 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:30:40,213 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:30:40,213 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:30:40,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,227 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,229 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,230 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:30:40,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:30:40,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:30:40,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:30:40,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (1/1) ... [2022-12-13 13:30:40,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:30:40,247 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:30:40,256 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:30:40,259 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 13:30:40,286 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:30:40,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:30:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:30:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure staticReturnsTrue [2022-12-13 13:30:40,287 INFO L138 BoogieDeclarations]: Found implementation of procedure staticReturnsTrue [2022-12-13 13:30:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:30:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 13:30:40,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 13:30:40,422 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:30:40,424 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:30:40,550 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:30:40,556 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:30:40,556 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 13:30:40,558 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:40 BoogieIcfgContainer [2022-12-13 13:30:40,558 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:30:40,560 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:30:40,560 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:30:40,564 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:30:40,564 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:30:39" (1/3) ... [2022-12-13 13:30:40,564 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7443896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:40, skipping insertion in model container [2022-12-13 13:30:40,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:30:40" (2/3) ... [2022-12-13 13:30:40,565 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7443896b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:30:40, skipping insertion in model container [2022-12-13 13:30:40,565 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:40" (3/3) ... [2022-12-13 13:30:40,566 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_multiply_08_bad.i [2022-12-13 13:30:40,583 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:30:40,583 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 13:30:40,625 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:30:40,631 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;@37fb7a2f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:30:40,631 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 13:30:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-12-13 13:30:40,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-12-13 13:30:40,642 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:40,643 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:40,643 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:30:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:40,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1814819498, now seen corresponding path program 1 times [2022-12-13 13:30:40,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:40,661 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1642777707] [2022-12-13 13:30:40,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:40,662 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 13:30:40,662 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:40,663 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:40,664 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:30:40,747 INFO L263 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 3 conjunts are in the unsatisfiable core [2022-12-13 13:30:40,752 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 13:30:40,807 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:30:40,808 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 13:30:40,808 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 13:30:40,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1642777707] [2022-12-13 13:30:40,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1642777707] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:30:40,809 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:30:40,809 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-12-13 13:30:40,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134872251] [2022-12-13 13:30:40,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:30:40,814 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 13:30:40,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 13:30:40,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 13:30:40,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:30:40,844 INFO L87 Difference]: Start difference. First operand has 30 states, 20 states have (on average 1.35) internal successors, (27), 23 states have internal predecessors, (27), 5 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 13:30:40,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 13:30:40,883 INFO L93 Difference]: Finished difference Result 51 states and 60 transitions. [2022-12-13 13:30:40,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 13:30:40,885 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) Word has length 20 [2022-12-13 13:30:40,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 13:30:40,890 INFO L225 Difference]: With dead ends: 51 [2022-12-13 13:30:40,890 INFO L226 Difference]: Without dead ends: 23 [2022-12-13 13:30:40,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 13:30:40,895 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 0 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 13:30:40,896 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 13:30:40,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-12-13 13:30:40,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-12-13 13:30:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 15 states have (on average 1.2) internal successors, (18), 17 states have internal predecessors, (18), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-13 13:30:40,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-12-13 13:30:40,925 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 20 [2022-12-13 13:30:40,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 13:30:40,926 INFO L495 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-12-13 13:30:40,926 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 3 states have internal predecessors, (14), 2 states have call successors, (3), 2 states have call predecessors, (3), 3 states have return successors, (3), 3 states have call predecessors, (3), 2 states have call successors, (3) [2022-12-13 13:30:40,927 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-12-13 13:30:40,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-12-13 13:30:40,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 13:30:40,928 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:30:40,941 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,130 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 13:30:41,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:30:41,133 INFO L85 PathProgramCache]: Analyzing trace with hash -761264401, now seen corresponding path program 1 times [2022-12-13 13:30:41,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 13:30:41,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1318171008] [2022-12-13 13:30:41,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:30:41,138 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 13:30:41,139 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 13:30:41,142 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,145 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:30:41,342 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:30:41,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:30:41,397 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 13:30:41,397 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:30:41,399 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 13:30:41,401 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 13:30:41,410 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,602 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/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 13:30:41,612 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 13:30:41,621 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:30:41,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:30:41 BoogieIcfgContainer [2022-12-13 13:30:41,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:30:41,678 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:30:41,678 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:30:41,679 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:30:41,679 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:30:40" (3/4) ... [2022-12-13 13:30:41,682 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:30:41,682 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:30:41,682 INFO L158 Benchmark]: Toolchain (without parser) took 2395.45ms. Allocated memory is still 90.2MB. Free memory was 65.8MB in the beginning and 48.9MB in the end (delta: 16.9MB). Peak memory consumption was 17.7MB. Max. memory is 16.1GB. [2022-12-13 13:30:41,683 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 43.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:41,683 INFO L158 Benchmark]: CACSL2BoogieTranslator took 869.09ms. Allocated memory is still 90.2MB. Free memory was 65.5MB in the beginning and 47.4MB in the end (delta: 18.1MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. [2022-12-13 13:30:41,684 INFO L158 Benchmark]: Boogie Procedure Inliner took 54.64ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 44.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:30:41,684 INFO L158 Benchmark]: Boogie Preprocessor took 20.69ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 42.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:41,685 INFO L158 Benchmark]: RCFGBuilder took 323.55ms. Allocated memory is still 90.2MB. Free memory was 42.1MB in the beginning and 56.0MB in the end (delta: -13.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2022-12-13 13:30:41,685 INFO L158 Benchmark]: TraceAbstraction took 1117.45ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 49.4MB in the end (delta: 5.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. [2022-12-13 13:30:41,686 INFO L158 Benchmark]: Witness Printer took 3.63ms. Allocated memory is still 90.2MB. Free memory was 49.4MB in the beginning and 48.9MB in the end (delta: 523.4kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:30:41,688 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 65.0MB. Free memory was 43.6MB in the beginning and 43.6MB in the end (delta: 73.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 869.09ms. Allocated memory is still 90.2MB. Free memory was 65.5MB in the beginning and 47.4MB in the end (delta: 18.1MB). Peak memory consumption was 34.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 54.64ms. Allocated memory is still 90.2MB. Free memory was 47.4MB in the beginning and 44.6MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.69ms. Allocated memory is still 90.2MB. Free memory was 44.2MB in the beginning and 42.5MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 323.55ms. Allocated memory is still 90.2MB. Free memory was 42.1MB in the beginning and 56.0MB in the end (delta: -13.9MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1117.45ms. Allocated memory is still 90.2MB. Free memory was 54.9MB in the beginning and 49.4MB in the end (delta: 5.5MB). Peak memory consumption was 5.0MB. Max. memory is 16.1GB. * Witness Printer took 3.63ms. Allocated memory is still 90.2MB. Free memory was 49.4MB in the beginning and 48.9MB in the end (delta: 523.4kB). 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: 1578]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1566. 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] [L1586] 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) [L1586] 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] [L1587] CALL CWE191_Integer_Underflow__int_fgets_multiply_08_bad() [L1558] int data; [L1559] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1560] RET staticReturnsTrue() VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1560] COND TRUE staticReturnsTrue() [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1566] data = atoi(inputBuffer) [L1563] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL staticReturnsTrue() VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1550] return 1; VAL [\result=1, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] RET staticReturnsTrue() VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticReturnsTrue()=1] [L1574] COND TRUE staticReturnsTrue() [L1576] COND TRUE data < 0 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1578] data * 2 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1578]: 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 3 procedures, 30 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 2, 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, 99 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 64 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6 IncrementalHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 35 mSDtfsCounter, 6 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 60 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 3/3 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 13:30:41,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc23954d-a67e-4abf-9f4c-8cf458b4b727/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample