./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R --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 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 --- 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-38b53e6 [2022-11-25 15:36:11,828 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:36:11,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:36:11,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:36:11,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:36:11,876 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:36:11,879 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:36:11,882 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:36:11,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:36:11,889 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:36:11,890 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:36:11,891 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:36:11,891 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:36:11,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:36:11,893 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:36:11,894 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:36:11,895 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:36:11,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:36:11,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:36:11,899 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:36:11,904 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:36:11,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:36:11,910 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:36:11,911 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:36:11,926 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:36:11,926 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:36:11,926 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:36:11,927 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:36:11,928 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:36:11,929 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:36:11,929 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:36:11,930 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:36:11,930 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:36:11,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:36:11,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:36:11,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:36:11,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:36:11,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:36:11,934 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:36:11,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:36:11,937 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:36:11,939 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:36:11,984 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:36:11,984 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:36:11,985 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:36:11,985 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:36:11,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:36:11,986 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:36:11,987 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:36:11,987 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:36:11,987 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:36:11,987 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:36:11,989 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:36:11,989 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:36:11,989 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:36:11,989 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:36:11,989 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:36:11,990 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:36:11,990 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:36:11,990 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:36:11,990 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:36:11,990 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:36:11,991 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:36:11,991 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:36:11,991 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:36:11,991 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:11,992 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:36:11,992 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:36:11,992 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:36:11,992 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:36:11,993 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:36:11,993 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:36:11,993 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:36:11,994 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:36:11,994 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:36:11,994 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_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 [2022-11-25 15:36:12,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:36:12,383 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:36:12,385 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:36:12,386 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:36:12,387 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:36:12,388 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:15,487 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:36:15,982 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:36:15,983 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:16,016 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/35c7b1af0/9d255d887fd74f909d37c68fa65942ea/FLAGde5d29ea7 [2022-11-25 15:36:16,033 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/35c7b1af0/9d255d887fd74f909d37c68fa65942ea [2022-11-25 15:36:16,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:36:16,037 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:36:16,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:16,041 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:36:16,045 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:36:16,046 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:16" (1/1) ... [2022-11-25 15:36:16,047 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3081aa5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:16, skipping insertion in model container [2022-11-25 15:36:16,047 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:16" (1/1) ... [2022-11-25 15:36:16,055 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:36:16,123 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:36:16,605 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:36:17,088 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:36:17,094 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:17,096 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:17,099 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:17,100 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:17,129 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:36:17,146 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:36:17,155 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:17,167 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:36:17,186 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:36:17,234 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:36:17,236 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:17,237 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:17,240 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:17,240 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:17,246 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:36:17,248 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:36:17,249 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:17,389 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:36:17,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17 WrapperNode [2022-11-25 15:36:17,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:17,392 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:17,392 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:36:17,392 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:36:17,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,435 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,478 INFO L138 Inliner]: procedures = 501, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 56 [2022-11-25 15:36:17,479 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:17,480 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:36:17,481 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:36:17,482 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:36:17,492 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,507 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,510 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,514 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,529 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,530 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,532 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:36:17,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:36:17,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:36:17,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:36:17,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (1/1) ... [2022-11-25 15:36:17,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:17,555 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:17,575 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:36:17,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:36:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 15:36:17,629 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:36:17,629 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:36:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:36:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 15:36:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:36:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:36:17,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:36:17,630 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:36:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:36:17,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:36:17,804 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:36:17,806 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:36:17,957 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:36:17,963 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:36:17,963 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:36:17,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:17 BoogieIcfgContainer [2022-11-25 15:36:17,965 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:36:17,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:36:17,968 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:36:17,988 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:36:17,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:36:16" (1/3) ... [2022-11-25 15:36:17,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188f79a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:17, skipping insertion in model container [2022-11-25 15:36:17,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:17" (2/3) ... [2022-11-25 15:36:17,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@188f79a7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:17, skipping insertion in model container [2022-11-25 15:36:17,990 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:17" (3/3) ... [2022-11-25 15:36:17,991 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:18,029 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:36:18,030 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:36:18,103 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:36:18,113 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;@2096f95b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:36:18,113 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:36:18,118 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:36:18,126 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:36:18,126 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:18,127 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:18,128 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:36:18,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:18,137 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-11-25 15:36:18,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:18,181 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669826043] [2022-11-25 15:36:18,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,182 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:18,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-11-25 15:36:18,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:18,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:18,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-11-25 15:36:18,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669826043] [2022-11-25 15:36:18,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669826043] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:18,633 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:18,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-25 15:36:18,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [66865332] [2022-11-25 15:36:18,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:18,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-25 15:36:18,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-11-25 15:36:18,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-25 15:36:18,670 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-25 15:36:18,672 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 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) [2022-11-25 15:36:18,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:18,718 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-25 15:36:18,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-25 15:36:18,721 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 [2022-11-25 15:36:18,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:18,728 INFO L225 Difference]: With dead ends: 23 [2022-11-25 15:36:18,729 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 15:36:18,732 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 [2022-11-25 15:36:18,736 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 20 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 45 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 [2022-11-25 15:36:18,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 45 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:18,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 15:36:18,775 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 15:36:18,777 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) [2022-11-25 15:36:18,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-25 15:36:18,780 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-25 15:36:18,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:18,782 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-25 15:36:18,782 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) [2022-11-25 15:36:18,784 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-25 15:36:18,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:36:18,786 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:18,787 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:18,787 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:36:18,787 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:36:18,788 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:18,789 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-25 15:36:18,789 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:36:18,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023076663] [2022-11-25 15:36:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:18,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:36:18,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:18,868 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:36:18,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:18,914 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:36:18,915 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:36:18,917 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:36:18,919 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:36:18,919 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-25 15:36:18,923 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:36:18,927 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:36:18,955 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:36:18 BoogieIcfgContainer [2022-11-25 15:36:18,955 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:36:18,956 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:36:18,956 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:36:18,956 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:36:18,957 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:17" (3/4) ... [2022-11-25 15:36:18,960 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:36:18,961 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:36:18,961 INFO L158 Benchmark]: Toolchain (without parser) took 2924.26ms. Allocated memory is still 188.7MB. Free memory was 150.8MB in the beginning and 121.8MB in the end (delta: 29.0MB). Peak memory consumption was 32.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,962 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:18,963 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1350.37ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 86.9MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,963 INFO L158 Benchmark]: Boogie Procedure Inliner took 87.65ms. Allocated memory is still 188.7MB. Free memory was 86.9MB in the beginning and 83.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,964 INFO L158 Benchmark]: Boogie Preprocessor took 54.20ms. Allocated memory is still 188.7MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,965 INFO L158 Benchmark]: RCFGBuilder took 430.48ms. Allocated memory is still 188.7MB. Free memory was 82.7MB in the beginning and 69.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,965 INFO L158 Benchmark]: TraceAbstraction took 987.70ms. Allocated memory is still 188.7MB. Free memory was 68.0MB in the beginning and 122.8MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:18,966 INFO L158 Benchmark]: Witness Printer took 4.76ms. Allocated memory is still 188.7MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:18,969 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 134.2MB. Free memory was 78.6MB in the beginning and 78.5MB in the end (delta: 117.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1350.37ms. Allocated memory is still 188.7MB. Free memory was 149.8MB in the beginning and 86.9MB in the end (delta: 62.9MB). Peak memory consumption was 62.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 87.65ms. Allocated memory is still 188.7MB. Free memory was 86.9MB in the beginning and 83.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.20ms. Allocated memory is still 188.7MB. Free memory was 83.7MB in the beginning and 82.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 430.48ms. Allocated memory is still 188.7MB. Free memory was 82.7MB in the beginning and 69.1MB in the end (delta: 13.5MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 987.70ms. Allocated memory is still 188.7MB. Free memory was 68.0MB in the beginning and 122.8MB in the end (delta: -54.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 4.76ms. Allocated memory is still 188.7MB. Free memory was 122.8MB in the beginning and 121.8MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1548] int CWE190_Integer_Overflow__int_fgets_add_68_badData; [L1550] int CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=2147483652, argc=2147483652, argv={2147483650:2147483653}, argv={2147483650:2147483653}, CWE190_Integer_Overflow__int_fgets_add_68_badData=0, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_add_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_add_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_add_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_add_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, 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] [L1585] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 45 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, 21 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=23occurred in iteration=0, InterpolantAutomatonStates: 4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s 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 [2022-11-25 15:36:18,994 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R --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 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 --- 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-38b53e6 [2022-11-25 15:36:21,552 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:36:21,555 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:36:21,595 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:36:21,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:36:21,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:36:21,598 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:36:21,601 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:36:21,603 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:36:21,604 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:36:21,606 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:36:21,607 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:36:21,608 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:36:21,609 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:36:21,611 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:36:21,612 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:36:21,613 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:36:21,615 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:36:21,617 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:36:21,619 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:36:21,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:36:21,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:36:21,624 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:36:21,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:36:21,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:36:21,630 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:36:21,631 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:36:21,632 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:36:21,632 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:36:21,634 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:36:21,634 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:36:21,635 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:36:21,636 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:36:21,637 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:36:21,638 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:36:21,639 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:36:21,640 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:36:21,640 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:36:21,641 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:36:21,642 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:36:21,643 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:36:21,644 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 15:36:21,670 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:36:21,670 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:36:21,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:36:21,671 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:36:21,672 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:36:21,673 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:36:21,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:36:21,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:36:21,675 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:36:21,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:36:21,675 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:36:21,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:36:21,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:36:21,677 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:36:21,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:36:21,677 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:36:21,677 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 15:36:21,678 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:36:21,678 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 15:36:21,678 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:36:21,679 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:36:21,679 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:36:21,679 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:36:21,680 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:36:21,680 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:36:21,680 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:21,681 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:36:21,681 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:36:21,681 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:36:21,682 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 15:36:21,682 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 15:36:21,682 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:36:21,683 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:36:21,683 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:36:21,683 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:36:21,684 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 15:36:21,684 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_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 49223ddcf322f8b5fb5185441c735a8895934f3ad680422ffdffaa44d7208c72 [2022-11-25 15:36:22,129 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:36:22,166 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:36:22,169 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:36:22,170 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:36:22,171 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:36:22,177 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:25,518 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:36:26,085 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:36:26,086 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:26,113 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/d7eb0b107/9f7c5f7877ce4c27a54be4e21473da01/FLAG7a5023cdc [2022-11-25 15:36:26,135 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/data/d7eb0b107/9f7c5f7877ce4c27a54be4e21473da01 [2022-11-25 15:36:26,151 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:36:26,153 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:36:26,155 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:26,155 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:36:26,160 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:36:26,161 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:26" (1/1) ... [2022-11-25 15:36:26,163 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ad2f9cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:26, skipping insertion in model container [2022-11-25 15:36:26,163 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:36:26" (1/1) ... [2022-11-25 15:36:26,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:36:26,265 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:36:26,757 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:36:27,366 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:36:27,372 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:27,374 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:27,377 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:27,379 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:27,417 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:36:27,422 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:36:27,426 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:27,442 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:36:27,466 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:36:27,516 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:36:27,518 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:27,519 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:36:27,521 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:27,522 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:36:27,526 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 15:36:27,528 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:36:27,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:36:27,682 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:36:27,682 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27 WrapperNode [2022-11-25 15:36:27,682 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:36:27,683 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:27,684 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:36:27,684 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:36:27,691 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,712 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,734 INFO L138 Inliner]: procedures = 506, calls = 63, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 54 [2022-11-25 15:36:27,734 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:36:27,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:36:27,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:36:27,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:36:27,745 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,745 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,760 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,762 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:36:27,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:36:27,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:36:27,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:36:27,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (1/1) ... [2022-11-25 15:36:27,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:36:27,800 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:36:27,821 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:36:27,847 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:36:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 15:36:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:36:27,871 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:36:27,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 15:36:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 15:36:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:36:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:36:27,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:36:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 15:36:27,872 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:36:27,873 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 15:36:28,161 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:36:28,164 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:36:28,365 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:36:28,372 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:36:28,372 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:36:28,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:28 BoogieIcfgContainer [2022-11-25 15:36:28,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:36:28,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:36:28,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:36:28,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:36:28,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:36:26" (1/3) ... [2022-11-25 15:36:28,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d8565c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:28, skipping insertion in model container [2022-11-25 15:36:28,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:36:27" (2/3) ... [2022-11-25 15:36:28,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21d8565c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:36:28, skipping insertion in model container [2022-11-25 15:36:28,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:28" (3/3) ... [2022-11-25 15:36:28,383 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_add_68_bad.i [2022-11-25 15:36:28,404 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:36:28,404 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:36:28,463 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:36:28,469 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;@43de83ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:36:28,469 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:36:28,474 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 15:36:28,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:36:28,484 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:28,485 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:28,485 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:36:28,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:28,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1073154618, now seen corresponding path program 1 times [2022-11-25 15:36:28,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:36:28,509 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1575201391] [2022-11-25 15:36:28,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:28,509 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 [2022-11-25 15:36:28,510 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:36:28,519 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 15:36:28,564 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:36:28,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 15:36:28,695 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 1 conjunts are in the unsatisfiable core [2022-11-25 15:36:28,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-11-25 15:36:28,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 15:36:28,728 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-11-25 15:36:28,728 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-11-25 15:36:28,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1575201391] [2022-11-25 15:36:28,730 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1575201391] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 15:36:28,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 15:36:28,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 15:36:28,733 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847796581] [2022-11-25 15:36:28,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 15:36:28,738 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 15:36:28,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-11-25 15:36:28,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 15:36:28,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 15:36:28,786 INFO L87 Difference]: Start difference. First operand has 23 states, 16 states have (on average 1.25) internal successors, (20), 19 states have internal predecessors, (20), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 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) [2022-11-25 15:36:28,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 15:36:28,808 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2022-11-25 15:36:28,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 15:36:28,811 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 [2022-11-25 15:36:28,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 15:36:28,818 INFO L225 Difference]: With dead ends: 23 [2022-11-25 15:36:28,818 INFO L226 Difference]: Without dead ends: 14 [2022-11-25 15:36:28,821 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 [2022-11-25 15:36:28,825 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 15:36:28,827 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 15:36:28,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-11-25 15:36:28,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-11-25 15:36:28,860 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) [2022-11-25 15:36:28,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-11-25 15:36:28,863 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2022-11-25 15:36:28,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 15:36:28,864 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-11-25 15:36:28,865 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) [2022-11-25 15:36:28,865 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-11-25 15:36:28,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-11-25 15:36:28,867 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:36:28,868 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:36:28,890 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:36:29,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:36:29,085 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:36:29,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:36:29,086 INFO L85 PathProgramCache]: Analyzing trace with hash 1091945264, now seen corresponding path program 1 times [2022-11-25 15:36:29,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:36:29,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1485821167] [2022-11-25 15:36:29,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:36:29,087 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 [2022-11-25 15:36:29,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:36:29,088 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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) [2022-11-25 15:36:29,090 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:36:29,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:29,251 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:36:29,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:36:29,325 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 15:36:29,326 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:36:29,328 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:36:29,330 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:36:29,351 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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)] Forceful destruction successful, exit code 0 [2022-11-25 15:36:29,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:36:29,543 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 15:36:29,547 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:36:29,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:36:29 BoogieIcfgContainer [2022-11-25 15:36:29,583 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:36:29,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:36:29,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:36:29,585 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:36:29,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:36:28" (3/4) ... [2022-11-25 15:36:29,598 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:36:29,598 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:36:29,600 INFO L158 Benchmark]: Toolchain (without parser) took 3446.99ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 74.2MB in the end (delta: 1.6MB). Peak memory consumption was 46.6MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,601 INFO L158 Benchmark]: CDTParser took 0.61ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:36:29,601 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1527.71ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 44.7MB in the end (delta: 31.1MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,602 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.05ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 41.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,603 INFO L158 Benchmark]: Boogie Preprocessor took 30.60ms. Allocated memory is still 102.8MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,603 INFO L158 Benchmark]: RCFGBuilder took 608.25ms. Allocated memory is still 102.8MB. Free memory was 39.5MB in the beginning and 66.1MB in the end (delta: -26.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,604 INFO L158 Benchmark]: TraceAbstraction took 1206.73ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 34.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,604 INFO L158 Benchmark]: Witness Printer took 14.39ms. Allocated memory is still 102.8MB. Free memory was 34.0MB in the beginning and 74.2MB in the end (delta: -40.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:36:29,607 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61ms. Allocated memory is still 73.4MB. Free memory is still 51.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1527.71ms. Allocated memory is still 102.8MB. Free memory was 75.8MB in the beginning and 44.7MB in the end (delta: 31.1MB). Peak memory consumption was 45.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.05ms. Allocated memory is still 102.8MB. Free memory was 44.7MB in the beginning and 41.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.60ms. Allocated memory is still 102.8MB. Free memory was 41.6MB in the beginning and 39.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 608.25ms. Allocated memory is still 102.8MB. Free memory was 39.5MB in the beginning and 66.1MB in the end (delta: -26.6MB). Peak memory consumption was 12.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1206.73ms. Allocated memory is still 102.8MB. Free memory was 65.4MB in the beginning and 34.0MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. * Witness Printer took 14.39ms. Allocated memory is still 102.8MB. Free memory was 34.0MB in the beginning and 74.2MB in the end (delta: -40.2MB). Peak memory consumption was 4.2MB. 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1560. 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); [L1550] int CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1573] CALL printLine("Calling bad()...") VAL [CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1573] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1574] CALL CWE190_Integer_Overflow__int_fgets_add_68_bad() [L1554] int data; [L1555] data = 0 [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1558] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1560] data = atoi(inputBuffer) [L1557] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1567] CWE190_Integer_Overflow__int_fgets_add_68_badData = data [L1568] CALL CWE190_Integer_Overflow__int_fgets_add_68b_badSink() [L1583] int data = CWE190_Integer_Overflow__int_fgets_add_68_badData; VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, 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] [L1585] data + 1 VAL [CWE190_Integer_Overflow__int_fgets_add_68_badData=2147483647, CWE190_Integer_Overflow__int_fgets_add_68_goodB2GData=0, 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: 1585]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 0 IncrementalHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 25 mSDtfsCounter, 0 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 69 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 [2022-11-25 15:36:29,648 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5d33b9e3-83fe-4cb8-889f-1d6c8c2921e6/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample