./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_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_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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_ae6d8836-11df-401b-89cd-41e5199275a7/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 67ffb06f55f3e3a0d5de3e3e30d88dbb86aea47b00f25ab682eaebca9ddb1d73 --- 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 20:31:52,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:31:52,864 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:31:52,882 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:31:52,882 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:31:52,883 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:31:52,885 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:31:52,887 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:31:52,889 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:31:52,890 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:31:52,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:31:52,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:31:52,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:31:52,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:31:52,894 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:31:52,895 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:31:52,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:31:52,897 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:31:52,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:31:52,901 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:31:52,902 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:31:52,903 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:31:52,904 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:31:52,905 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:31:52,907 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:31:52,907 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:31:52,908 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:31:52,908 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:31:52,909 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:31:52,909 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:31:52,909 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:31:52,910 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:31:52,911 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:31:52,911 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:31:52,912 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:31:52,912 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:31:52,912 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:31:52,913 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:31:52,913 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:31:52,913 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:31:52,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:31:52,914 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 20:31:52,929 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:31:52,930 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:31:52,930 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:31:52,930 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:31:52,930 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:31:52,930 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:31:52,931 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:31:52,931 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:31:52,931 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:31:52,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:31:52,931 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:31:52,932 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:31:52,933 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:31:52,933 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:31:52,933 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:31:52,934 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:31:52,934 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_ae6d8836-11df-401b-89cd-41e5199275a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67ffb06f55f3e3a0d5de3e3e30d88dbb86aea47b00f25ab682eaebca9ddb1d73 [2022-12-13 20:31:53,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:31:53,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:31:53,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:31:53,119 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:31:53,119 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:31:53,120 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:31:55,627 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:31:55,869 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:31:55,869 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:31:55,888 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/b34e6aec1/95168f70a44a448ebdfa0dae685ece75/FLAG082cd7d59 [2022-12-13 20:31:56,183 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/b34e6aec1/95168f70a44a448ebdfa0dae685ece75 [2022-12-13 20:31:56,185 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:31:56,186 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:31:56,187 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:31:56,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:31:56,191 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:31:56,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:56,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ea3c5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56, skipping insertion in model container [2022-12-13 20:31:56,193 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:56,199 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:31:56,246 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:31:56,480 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:31:56,792 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:31:56,797 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:31:56,798 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:31:56,800 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:31:56,800 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:31:56,818 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:31:56,820 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:31:56,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:31:56,835 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:31:56,848 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:31:56,878 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:31:56,879 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:31:56,880 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:31:56,881 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:31:56,882 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:31:56,885 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:31:56,886 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:31:56,887 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:31:56,977 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:31:56,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56 WrapperNode [2022-12-13 20:31:56,978 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:31:56,979 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:31:56,979 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:31:56,979 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:31:56,986 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,007 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,031 INFO L138 Inliner]: procedures = 504, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 59 [2022-12-13 20:31:57,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:31:57,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:31:57,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:31:57,032 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:31:57,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,039 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,041 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,041 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,046 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,047 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,048 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,049 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:31:57,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:31:57,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:31:57,050 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:31:57,051 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (1/1) ... [2022-12-13 20:31:57,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:31:57,064 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:31:57,073 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:31:57,075 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:31:57,099 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:31:57,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:31:57,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:31:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:31:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:31:57,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 20:31:57,212 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:31:57,213 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:31:57,310 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:31:57,315 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:31:57,315 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:31:57,316 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:31:57 BoogieIcfgContainer [2022-12-13 20:31:57,317 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:31:57,319 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:31:57,319 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:31:57,321 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:31:57,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:31:56" (1/3) ... [2022-12-13 20:31:57,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eea0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:31:57, skipping insertion in model container [2022-12-13 20:31:57,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:31:56" (2/3) ... [2022-12-13 20:31:57,322 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45eea0eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:31:57, skipping insertion in model container [2022-12-13 20:31:57,322 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:31:57" (3/3) ... [2022-12-13 20:31:57,324 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:31:57,338 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:31:57,338 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:31:57,374 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:31:57,379 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;@5dce5d89, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:31:57,379 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:31:57,382 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:31:57,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:31:57,389 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:31:57,389 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:57,390 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:31:57,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:57,394 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-12-13 20:31:57,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:57,401 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1206564205] [2022-12-13 20:31:57,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:57,402 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:57,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:57,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 20:31:57,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:31:57,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:31:57,675 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 20:31:57,675 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1206564205] [2022-12-13 20:31:57,675 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1206564205] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:31:57,675 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:31:57,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 20:31:57,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1500555385] [2022-12-13 20:31:57,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:31:57,680 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-13 20:31:57,680 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 20:31:57,701 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-13 20:31:57,702 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-13 20:31:57,703 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:31:57,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:31:57,743 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-13 20:31:57,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-12-13 20:31:57,746 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 20:31:57,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:31:57,751 INFO L225 Difference]: With dead ends: 26 [2022-12-13 20:31:57,751 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 20:31:57,753 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-12-13 20:31:57,756 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 26 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 48 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:31:57,758 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 48 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:31:57,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 20:31:57,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 20:31:57,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:31:57,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 20:31:57,786 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 20:31:57,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:31:57,787 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 20:31:57,787 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:31:57,787 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 20:31:57,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:31:57,788 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:31:57,788 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:31:57,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 20:31:57,789 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:31:57,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:31:57,789 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-12-13 20:31:57,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 20:31:57,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1981202749] [2022-12-13 20:31:57,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:31:57,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 20:31:57,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:31:57,818 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:31:57,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:31:57,851 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 20:31:57,852 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:31:57,853 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:31:57,855 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:31:57,856 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 20:31:57,859 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:31:57,863 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:31:57,886 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:31:57 BoogieIcfgContainer [2022-12-13 20:31:57,886 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:31:57,887 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:31:57,887 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:31:57,887 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:31:57,887 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:31:57" (3/4) ... [2022-12-13 20:31:57,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:31:57,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:31:57,891 INFO L158 Benchmark]: Toolchain (without parser) took 1704.65ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 115.7MB in the beginning and 93.6MB in the end (delta: 22.2MB). Peak memory consumption was 55.7MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,891 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:31:57,892 INFO L158 Benchmark]: CACSL2BoogieTranslator took 790.87ms. Allocated memory is still 153.1MB. Free memory was 115.0MB in the beginning and 119.0MB in the end (delta: -4.0MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,892 INFO L158 Benchmark]: Boogie Procedure Inliner took 52.78ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 119.0MB in the beginning and 152.3MB in the end (delta: -33.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,893 INFO L158 Benchmark]: Boogie Preprocessor took 17.85ms. Allocated memory is still 184.5MB. Free memory was 152.3MB in the beginning and 151.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,894 INFO L158 Benchmark]: RCFGBuilder took 266.45ms. Allocated memory is still 184.5MB. Free memory was 151.2MB in the beginning and 137.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,894 INFO L158 Benchmark]: TraceAbstraction took 567.35ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 93.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2022-12-13 20:31:57,894 INFO L158 Benchmark]: Witness Printer took 3.45ms. Allocated memory is still 184.5MB. Free memory is still 93.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:31:57,897 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 153.1MB. Free memory is still 96.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 790.87ms. Allocated memory is still 153.1MB. Free memory was 115.0MB in the beginning and 119.0MB in the end (delta: -4.0MB). Peak memory consumption was 71.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 52.78ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 119.0MB in the beginning and 152.3MB in the end (delta: -33.3MB). Peak memory consumption was 4.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.85ms. Allocated memory is still 184.5MB. Free memory was 152.3MB in the beginning and 151.2MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 266.45ms. Allocated memory is still 184.5MB. Free memory was 151.2MB in the beginning and 137.6MB in the end (delta: 13.6MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 567.35ms. Allocated memory is still 184.5MB. Free memory was 136.6MB in the beginning and 93.6MB in the end (delta: 43.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Witness Printer took 3.45ms. Allocated memory is still 184.5MB. Free memory is still 93.6MB. 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483653, argc=2147483653, argv={2147483649:2147483654}, argv={2147483649:2147483654}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_add_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_add_54e_badSink(data) [L1592] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 27 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 26 mSDsluCounter, 48 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 24 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 24 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:31:57,913 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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_ae6d8836-11df-401b-89cd-41e5199275a7/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 67ffb06f55f3e3a0d5de3e3e30d88dbb86aea47b00f25ab682eaebca9ddb1d73 --- 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 20:31:59,604 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 20:31:59,606 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 20:31:59,623 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 20:31:59,624 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 20:31:59,624 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 20:31:59,626 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 20:31:59,627 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 20:31:59,629 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 20:31:59,629 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 20:31:59,630 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 20:31:59,631 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 20:31:59,632 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 20:31:59,633 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 20:31:59,634 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 20:31:59,635 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 20:31:59,636 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 20:31:59,637 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 20:31:59,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 20:31:59,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 20:31:59,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 20:31:59,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 20:31:59,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 20:31:59,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 20:31:59,648 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 20:31:59,648 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 20:31:59,648 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 20:31:59,649 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 20:31:59,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 20:31:59,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 20:31:59,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 20:31:59,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 20:31:59,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 20:31:59,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 20:31:59,662 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 20:31:59,663 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 20:31:59,663 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 20:31:59,664 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 20:31:59,664 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 20:31:59,665 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 20:31:59,665 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 20:31:59,666 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 20:31:59,688 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 20:31:59,688 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 20:31:59,688 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 20:31:59,688 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 20:31:59,689 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 20:31:59,689 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 20:31:59,689 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 20:31:59,689 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 20:31:59,689 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 20:31:59,689 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 20:31:59,690 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 20:31:59,691 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 20:31:59,691 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:31:59,692 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 20:31:59,692 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 20:31:59,693 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 20:31:59,693 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 20:31:59,693 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 20:31:59,693 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_ae6d8836-11df-401b-89cd-41e5199275a7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 67ffb06f55f3e3a0d5de3e3e30d88dbb86aea47b00f25ab682eaebca9ddb1d73 [2022-12-13 20:31:59,893 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 20:31:59,911 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 20:31:59,914 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 20:31:59,915 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 20:31:59,915 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 20:31:59,916 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:32:02,540 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 20:32:02,798 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 20:32:02,799 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:32:02,812 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/4343b1185/a311ec33d496416ab4aa1e8e47af7591/FLAG80d0f1184 [2022-12-13 20:32:02,822 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/data/4343b1185/a311ec33d496416ab4aa1e8e47af7591 [2022-12-13 20:32:02,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 20:32:02,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 20:32:02,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 20:32:02,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 20:32:02,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 20:32:02,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:32:02" (1/1) ... [2022-12-13 20:32:02,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@718baa9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:02, skipping insertion in model container [2022-12-13 20:32:02,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 08:32:02" (1/1) ... [2022-12-13 20:32:02,837 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 20:32:02,876 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 20:32:03,154 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:32:03,464 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:32:03,468 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:32:03,469 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:32:03,471 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:32:03,472 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:32:03,486 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:32:03,488 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:32:03,493 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:32:03,503 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 20:32:03,516 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 20:32:03,549 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 20:32:03,550 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:32:03,551 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 20:32:03,552 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:32:03,553 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 20:32:03,556 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-13 20:32:03,557 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 20:32:03,558 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 20:32:03,633 INFO L208 MainTranslator]: Completed translation [2022-12-13 20:32:03,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03 WrapperNode [2022-12-13 20:32:03,634 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 20:32:03,634 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 20:32:03,634 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 20:32:03,635 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 20:32:03,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,660 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,675 INFO L138 Inliner]: procedures = 509, calls = 66, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 58 [2022-12-13 20:32:03,675 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 20:32:03,675 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 20:32:03,676 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 20:32:03,676 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 20:32:03,682 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,684 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,685 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,690 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,693 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,694 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 20:32:03,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 20:32:03,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 20:32:03,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 20:32:03,697 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (1/1) ... [2022-12-13 20:32:03,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 20:32:03,711 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 20:32:03,720 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 20:32:03,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 20:32:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-13 20:32:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 20:32:03,745 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 20:32:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 20:32:03,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 20:32:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 20:32:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 20:32:03,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 20:32:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 20:32:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 20:32:03,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-13 20:32:03,863 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 20:32:03,864 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 20:32:03,984 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 20:32:03,990 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 20:32:03,990 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 20:32:03,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:32:03 BoogieIcfgContainer [2022-12-13 20:32:03,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 20:32:03,993 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 20:32:03,993 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 20:32:03,995 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 20:32:03,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 08:32:02" (1/3) ... [2022-12-13 20:32:03,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e511dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:32:03, skipping insertion in model container [2022-12-13 20:32:03,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 08:32:03" (2/3) ... [2022-12-13 20:32:03,996 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25e511dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 08:32:03, skipping insertion in model container [2022-12-13 20:32:03,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:32:03" (3/3) ... [2022-12-13 20:32:03,997 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_54_bad.i [2022-12-13 20:32:04,010 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 20:32:04,011 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 20:32:04,042 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 20:32:04,046 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;@3b7fd093, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 20:32:04,047 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 20:32:04,049 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-13 20:32:04,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 20:32:04,055 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:32:04,055 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:04,055 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:32:04,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:04,059 INFO L85 PathProgramCache]: Analyzing trace with hash 972561618, now seen corresponding path program 1 times [2022-12-13 20:32:04,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:32:04,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1151884650] [2022-12-13 20:32:04,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:04,072 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 20:32:04,072 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:32:04,073 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 20:32:04,190 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 1 conjunts are in the unsatisfiable core [2022-12-13 20:32:04,193 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 20:32:04,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 20:32:04,209 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 20:32:04,209 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 20:32:04,209 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1151884650] [2022-12-13 20:32:04,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1151884650] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 20:32:04,210 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 20:32:04,210 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 20:32:04,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172868016] [2022-12-13 20:32:04,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 20:32:04,214 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 20:32:04,214 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 20:32:04,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 20:32:04,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:32:04,236 INFO L87 Difference]: Start difference. First operand has 26 states, 19 states have (on average 1.2105263157894737) internal successors, (23), 22 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:32:04,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 20:32:04,248 INFO L93 Difference]: Finished difference Result 26 states and 29 transitions. [2022-12-13 20:32:04,249 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 20:32:04,250 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 20:32:04,250 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 20:32:04,254 INFO L225 Difference]: With dead ends: 26 [2022-12-13 20:32:04,254 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 20:32:04,256 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 20:32:04,258 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 20:32:04,258 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 20:32:04,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 20:32:04,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 20:32:04,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 10 states have (on average 1.2) internal successors, (12), 11 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 20:32:04,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-12-13 20:32:04,281 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-12-13 20:32:04,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 20:32:04,282 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-12-13 20:32:04,282 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 9.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 20:32:04,282 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-12-13 20:32:04,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-12-13 20:32:04,283 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 20:32:04,283 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 20:32:04,292 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,484 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 20:32:04,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 20:32:04,487 INFO L85 PathProgramCache]: Analyzing trace with hash 84639140, now seen corresponding path program 1 times [2022-12-13 20:32:04,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 20:32:04,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [319548985] [2022-12-13 20:32:04,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 20:32:04,490 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 20:32:04,490 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 20:32:04,493 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,496 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:32:04,630 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 20:32:04,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 20:32:04,681 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 20:32:04,681 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 20:32:04,683 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 20:32:04,685 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 20:32:04,702 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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 20:32:04,898 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 20:32:04,910 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 20:32:04,947 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 08:32:04 BoogieIcfgContainer [2022-12-13 20:32:04,947 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 20:32:04,947 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 20:32:04,947 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 20:32:04,947 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 20:32:04,948 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 08:32:03" (3/4) ... [2022-12-13 20:32:04,950 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 20:32:04,950 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 20:32:04,950 INFO L158 Benchmark]: Toolchain (without parser) took 2125.15ms. Allocated memory is still 86.0MB. Free memory was 61.1MB in the beginning and 57.8MB in the end (delta: 3.3MB). Peak memory consumption was 5.5MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,951 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:32:04,951 INFO L158 Benchmark]: CACSL2BoogieTranslator took 807.57ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 36.5MB in the end (delta: 24.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,951 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.76ms. Allocated memory is still 86.0MB. Free memory was 36.5MB in the beginning and 58.0MB in the end (delta: -21.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,952 INFO L158 Benchmark]: Boogie Preprocessor took 20.75ms. Allocated memory is still 86.0MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,952 INFO L158 Benchmark]: RCFGBuilder took 294.85ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 42.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,952 INFO L158 Benchmark]: TraceAbstraction took 954.00ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 58.3MB in the end (delta: -17.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. [2022-12-13 20:32:04,952 INFO L158 Benchmark]: Witness Printer took 2.77ms. Allocated memory is still 86.0MB. Free memory is still 57.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 20:32:04,954 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 41.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 807.57ms. Allocated memory is still 86.0MB. Free memory was 60.9MB in the beginning and 36.5MB in the end (delta: 24.3MB). Peak memory consumption was 30.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 40.76ms. Allocated memory is still 86.0MB. Free memory was 36.5MB in the beginning and 58.0MB in the end (delta: -21.4MB). Peak memory consumption was 4.6MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.75ms. Allocated memory is still 86.0MB. Free memory was 58.0MB in the beginning and 55.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 294.85ms. Allocated memory is still 86.0MB. Free memory was 55.9MB in the beginning and 42.1MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 954.00ms. Allocated memory is still 86.0MB. Free memory was 41.2MB in the beginning and 58.3MB in the end (delta: -17.1MB). Peak memory consumption was 8.5MB. Max. memory is 16.1GB. * Witness Printer took 2.77ms. Allocated memory is still 86.0MB. Free memory is still 57.8MB. 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: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1557. 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] [L1569] 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) [L1569] 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] [L1570] CALL CWE190_Integer_Overflow__int_fgets_add_54_bad() [L1551] int data; [L1552] data = 0 [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1555] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1557] data = atoi(inputBuffer) [L1554] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1564] CALL CWE190_Integer_Overflow__int_fgets_add_54b_badSink(data) [L1577] CALL CWE190_Integer_Overflow__int_fgets_add_54c_badSink(data) [L1582] CALL CWE190_Integer_Overflow__int_fgets_add_54d_badSink(data) [L1587] CALL CWE190_Integer_Overflow__int_fgets_add_54e_badSink(data) [L1592] data + 1 VAL [\old(data)=2147483647, data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1592]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 28 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 74 ConjunctsInSsa, 1 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 20:32:04,965 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_ae6d8836-11df-401b-89cd-41e5199275a7/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