./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_good.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_good.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur --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 Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 213fcf3310c5d95f1b64c5992e2b740a7bd1b2951b78941b8b9d86e1a100927f --- 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 [2022-11-26 00:21:36,942 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-26 00:21:36,944 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-26 00:21:36,984 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-26 00:21:36,984 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-26 00:21:36,988 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-26 00:21:36,990 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-26 00:21:36,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-26 00:21:36,996 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-26 00:21:37,001 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-26 00:21:37,003 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-26 00:21:37,005 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-26 00:21:37,006 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-26 00:21:37,008 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-26 00:21:37,010 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-26 00:21:37,011 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-26 00:21:37,013 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-26 00:21:37,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-26 00:21:37,016 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-26 00:21:37,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-26 00:21:37,024 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-26 00:21:37,026 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-26 00:21:37,027 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-26 00:21:37,028 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-26 00:21:37,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-26 00:21:37,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-26 00:21:37,039 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-26 00:21:37,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-26 00:21:37,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-26 00:21:37,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-26 00:21:37,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-26 00:21:37,044 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-26 00:21:37,046 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-26 00:21:37,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-26 00:21:37,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-26 00:21:37,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-26 00:21:37,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-26 00:21:37,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-26 00:21:37,051 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-26 00:21:37,052 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-26 00:21:37,053 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-26 00:21:37,054 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-26 00:21:37,090 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-26 00:21:37,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-26 00:21:37,091 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-26 00:21:37,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-26 00:21:37,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-26 00:21:37,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-26 00:21:37,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-26 00:21:37,094 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-26 00:21:37,094 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-26 00:21:37,094 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-26 00:21:37,095 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-26 00:21:37,095 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-26 00:21:37,096 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-26 00:21:37,096 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-26 00:21:37,096 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-26 00:21:37,097 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-26 00:21:37,097 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-26 00:21:37,097 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-26 00:21:37,098 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-26 00:21:37,098 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-26 00:21:37,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-26 00:21:37,099 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-26 00:21:37,099 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-26 00:21:37,099 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-26 00:21:37,099 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-26 00:21:37,100 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-26 00:21:37,100 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-26 00:21:37,100 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-26 00:21:37,100 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-26 00:21:37,101 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-26 00:21:37,101 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-26 00:21:37,102 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:21:37,102 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-26 00:21:37,102 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-26 00:21:37,103 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-26 00:21:37,103 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-26 00:21:37,103 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-26 00:21:37,103 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-26 00:21:37,104 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-26 00:21:37,104 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-26 00:21:37,104 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 213fcf3310c5d95f1b64c5992e2b740a7bd1b2951b78941b8b9d86e1a100927f [2022-11-26 00:21:37,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-26 00:21:37,457 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-26 00:21:37,460 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-26 00:21:37,461 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-26 00:21:37,462 INFO L275 PluginConnector]: CDTParser initialized [2022-11-26 00:21:37,463 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_good.i [2022-11-26 00:21:40,511 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-26 00:21:40,880 INFO L351 CDTParser]: Found 1 translation units. [2022-11-26 00:21:40,881 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_fgets_sub_63_good.i [2022-11-26 00:21:40,914 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/data/4dcb27028/3e0b51d73a5a45a0873fa514e3ea0515/FLAG8d45adb89 [2022-11-26 00:21:40,936 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/data/4dcb27028/3e0b51d73a5a45a0873fa514e3ea0515 [2022-11-26 00:21:40,939 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-26 00:21:40,940 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-26 00:21:40,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-26 00:21:40,944 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-26 00:21:40,948 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-26 00:21:40,949 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:21:40" (1/1) ... [2022-11-26 00:21:40,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b2bcf07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:40, skipping insertion in model container [2022-11-26 00:21:40,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 12:21:40" (1/1) ... [2022-11-26 00:21:40,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-26 00:21:41,028 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-26 00:21:41,392 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:21:41,998 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:21:42,003 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:21:42,006 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:21:42,008 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:21:42,011 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:21:42,041 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:21:42,045 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:21:42,049 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:21:42,061 INFO L203 MainTranslator]: Completed pre-run [2022-11-26 00:21:42,093 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-26 00:21:42,131 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-26 00:21:42,133 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:21:42,134 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-26 00:21:42,136 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:21:42,137 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-26 00:21:42,142 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-26 00:21:42,144 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-26 00:21:42,146 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-26 00:21:42,347 INFO L208 MainTranslator]: Completed translation [2022-11-26 00:21:42,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42 WrapperNode [2022-11-26 00:21:42,348 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-26 00:21:42,349 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-26 00:21:42,349 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-26 00:21:42,349 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-26 00:21:42,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,402 INFO L138 Inliner]: procedures = 504, calls = 79, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 75 [2022-11-26 00:21:42,402 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-26 00:21:42,403 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-26 00:21:42,403 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-26 00:21:42,403 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-26 00:21:42,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,421 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,424 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,424 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,432 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-26 00:21:42,438 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-26 00:21:42,438 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-26 00:21:42,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-26 00:21:42,439 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (1/1) ... [2022-11-26 00:21:42,463 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-26 00:21:42,474 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/z3 [2022-11-26 00:21:42,494 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-26 00:21:42,525 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-26 00:21:42,544 INFO L130 BoogieDeclarations]: Found specification of procedure printIntLine [2022-11-26 00:21:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printIntLine [2022-11-26 00:21:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-26 00:21:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-26 00:21:42,545 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-26 00:21:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-26 00:21:42,545 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-26 00:21:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-26 00:21:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-26 00:21:42,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-26 00:21:42,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-26 00:21:42,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-26 00:21:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-26 00:21:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-26 00:21:42,548 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-26 00:21:42,726 INFO L235 CfgBuilder]: Building ICFG [2022-11-26 00:21:42,728 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-26 00:21:42,934 INFO L276 CfgBuilder]: Performing block encoding [2022-11-26 00:21:42,972 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-26 00:21:42,972 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-26 00:21:42,974 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:21:42 BoogieIcfgContainer [2022-11-26 00:21:42,975 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-26 00:21:42,977 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-26 00:21:42,977 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-26 00:21:42,981 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-26 00:21:42,981 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 12:21:40" (1/3) ... [2022-11-26 00:21:42,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6e7bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:21:42, skipping insertion in model container [2022-11-26 00:21:42,982 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 12:21:42" (2/3) ... [2022-11-26 00:21:42,982 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e6e7bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 12:21:42, skipping insertion in model container [2022-11-26 00:21:42,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:21:42" (3/3) ... [2022-11-26 00:21:42,984 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_fgets_sub_63_good.i [2022-11-26 00:21:43,005 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-26 00:21:43,005 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-11-26 00:21:43,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-26 00:21:43,061 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=FINITE_AUTOMATA, 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;@fa35e5f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-26 00:21:43,061 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-11-26 00:21:43,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) [2022-11-26 00:21:43,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-11-26 00:21:43,071 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:43,072 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-11-26 00:21:43,073 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:21:43,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:43,079 INFO L85 PathProgramCache]: Analyzing trace with hash -1351265282, now seen corresponding path program 1 times [2022-11-26 00:21:43,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:21:43,087 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [870434950] [2022-11-26 00:21:43,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:43,088 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:21:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:43,680 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:21:43,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [870434950] [2022-11-26 00:21:43,681 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [870434950] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:43,682 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:43,682 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:21:43,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064580757] [2022-11-26 00:21:43,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:43,689 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:21:43,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:21:43,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:21:43,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:43,746 INFO L87 Difference]: Start difference. First operand has 27 states, 14 states have (on average 1.4285714285714286) internal successors, (20), 20 states have internal predecessors, (20), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 5 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-26 00:21:43,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:43,804 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2022-11-26 00:21:43,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:21:43,807 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 6 [2022-11-26 00:21:43,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:43,817 INFO L225 Difference]: With dead ends: 27 [2022-11-26 00:21:43,817 INFO L226 Difference]: Without dead ends: 20 [2022-11-26 00:21:43,821 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:43,827 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 15 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:43,829 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 29 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:21:43,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-11-26 00:21:43,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-11-26 00:21:43,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 12 states have (on average 1.25) internal successors, (15), 15 states have internal predecessors, (15), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:21:43,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 21 transitions. [2022-11-26 00:21:43,870 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 21 transitions. Word has length 6 [2022-11-26 00:21:43,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:43,871 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 21 transitions. [2022-11-26 00:21:43,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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) [2022-11-26 00:21:43,872 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 21 transitions. [2022-11-26 00:21:43,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-11-26 00:21:43,874 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:43,874 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:43,875 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-26 00:21:43,875 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:21:43,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:43,877 INFO L85 PathProgramCache]: Analyzing trace with hash 1060449266, now seen corresponding path program 1 times [2022-11-26 00:21:43,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:21:43,878 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117861243] [2022-11-26 00:21:43,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:43,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:21:43,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:44,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:44,124 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:21:44,125 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117861243] [2022-11-26 00:21:44,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117861243] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:44,127 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:44,127 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:21:44,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [646871274] [2022-11-26 00:21:44,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:44,129 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:21:44,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:21:44,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:21:44,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:44,133 INFO L87 Difference]: Start difference. First operand 20 states and 21 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-26 00:21:44,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:44,159 INFO L93 Difference]: Finished difference Result 20 states and 21 transitions. [2022-11-26 00:21:44,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:21:44,161 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 7 [2022-11-26 00:21:44,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:44,162 INFO L225 Difference]: With dead ends: 20 [2022-11-26 00:21:44,162 INFO L226 Difference]: Without dead ends: 19 [2022-11-26 00:21:44,164 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:44,166 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 9 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:44,168 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 18 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:21:44,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2022-11-26 00:21:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2022-11-26 00:21:44,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 14 states have internal predecessors, (14), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:21:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 20 transitions. [2022-11-26 00:21:44,175 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 20 transitions. Word has length 7 [2022-11-26 00:21:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:44,176 INFO L495 AbstractCegarLoop]: Abstraction has 19 states and 20 transitions. [2022-11-26 00:21:44,176 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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) [2022-11-26 00:21:44,176 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 20 transitions. [2022-11-26 00:21:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-11-26 00:21:44,177 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:44,178 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:44,179 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-11-26 00:21:44,179 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:21:44,180 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:44,181 INFO L85 PathProgramCache]: Analyzing trace with hash 933604081, now seen corresponding path program 1 times [2022-11-26 00:21:44,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:21:44,182 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572377866] [2022-11-26 00:21:44,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:44,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:21:44,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:44,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:44,269 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:21:44,269 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572377866] [2022-11-26 00:21:44,269 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572377866] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:44,269 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:44,270 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-11-26 00:21:44,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [654581423] [2022-11-26 00:21:44,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:44,270 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-11-26 00:21:44,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:21:44,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-11-26 00:21:44,272 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:44,272 INFO L87 Difference]: Start difference. First operand 19 states and 20 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:21:44,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:44,291 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-11-26 00:21:44,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-11-26 00:21:44,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2022-11-26 00:21:44,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:44,293 INFO L225 Difference]: With dead ends: 19 [2022-11-26 00:21:44,293 INFO L226 Difference]: Without dead ends: 18 [2022-11-26 00:21:44,293 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-11-26 00:21:44,294 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 2 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:44,295 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 24 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:21:44,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-11-26 00:21:44,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2022-11-26 00:21:44,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 12 states have (on average 1.0833333333333333) internal successors, (13), 13 states have internal predecessors, (13), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-26 00:21:44,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2022-11-26 00:21:44,300 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 15 [2022-11-26 00:21:44,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:44,301 INFO L495 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2022-11-26 00:21:44,301 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:21:44,301 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2022-11-26 00:21:44,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-11-26 00:21:44,302 INFO L187 NwaCegarLoop]: Found error trace [2022-11-26 00:21:44,302 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-26 00:21:44,302 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-11-26 00:21:44,303 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-11-26 00:21:44,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-26 00:21:44,303 INFO L85 PathProgramCache]: Analyzing trace with hash -1123044493, now seen corresponding path program 1 times [2022-11-26 00:21:44,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-26 00:21:44,304 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096385820] [2022-11-26 00:21:44,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-26 00:21:44,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-26 00:21:44,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-26 00:21:44,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-26 00:21:44,577 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-26 00:21:44,577 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096385820] [2022-11-26 00:21:44,578 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096385820] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-26 00:21:44,578 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-26 00:21:44,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-11-26 00:21:44,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029733473] [2022-11-26 00:21:44,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-26 00:21:44,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-11-26 00:21:44,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-26 00:21:44,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-11-26 00:21:44,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-11-26 00:21:44,581 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:21:44,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-26 00:21:44,637 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2022-11-26 00:21:44,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-11-26 00:21:44,638 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2022-11-26 00:21:44,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-26 00:21:44,639 INFO L225 Difference]: With dead ends: 18 [2022-11-26 00:21:44,639 INFO L226 Difference]: Without dead ends: 0 [2022-11-26 00:21:44,642 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-11-26 00:21:44,651 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 4 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-26 00:21:44,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 26 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-26 00:21:44,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-11-26 00:21:44,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-11-26 00:21:44,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-11-26 00:21:44,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-11-26 00:21:44,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2022-11-26 00:21:44,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-26 00:21:44,657 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-11-26 00:21:44,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-11-26 00:21:44,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-11-26 00:21:44,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-11-26 00:21:44,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-11-26 00:21:44,660 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-11-26 00:21:44,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-11-26 00:21:44,661 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-11-26 00:21:44,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-11-26 00:21:44,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-11-26 00:21:44,702 INFO L902 garLoopResultBuilder]: At program point printLineENTRY(lines 1412 1418) the Hoare annotation is: true [2022-11-26 00:21:44,703 INFO L899 garLoopResultBuilder]: For program point printLineEXIT(lines 1412 1418) no Hoare annotation was computed. [2022-11-26 00:21:44,703 INFO L899 garLoopResultBuilder]: For program point printIntLineEXIT(lines 1426 1429) no Hoare annotation was computed. [2022-11-26 00:21:44,704 INFO L902 garLoopResultBuilder]: At program point printIntLineENTRY(lines 1426 1429) the Hoare annotation is: true [2022-11-26 00:21:44,708 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1591) no Hoare annotation was computed. [2022-11-26 00:21:44,708 INFO L895 garLoopResultBuilder]: At program point L1569(line 1569) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|))) (and (<= 0 .cse0) (<= .cse0 0) (<= (select (select |#memory_int| |ULTIMATE.start_goodB2G_~#data~1#1.base|) |ULTIMATE.start_goodB2G_~#data~1#1.offset|) 2147483647))) [2022-11-26 00:21:44,708 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-11-26 00:21:44,709 INFO L899 garLoopResultBuilder]: For program point L1569-1(lines 1563 1570) no Hoare annotation was computed. [2022-11-26 00:21:44,709 INFO L899 garLoopResultBuilder]: For program point L1600(line 1600) no Hoare annotation was computed. [2022-11-26 00:21:44,709 INFO L899 garLoopResultBuilder]: For program point L1600-1(line 1600) no Hoare annotation was computed. [2022-11-26 00:21:44,710 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1600) no Hoare annotation was computed. [2022-11-26 00:21:44,710 INFO L899 garLoopResultBuilder]: For program point L1598(lines 1598 1606) no Hoare annotation was computed. [2022-11-26 00:21:44,710 INFO L899 garLoopResultBuilder]: For program point L1563(lines 1563 1570) no Hoare annotation was computed. [2022-11-26 00:21:44,716 INFO L895 garLoopResultBuilder]: At program point L1592(line 1592) the Hoare annotation is: (let ((.cse0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|))) (and (<= 0 .cse0) (<= .cse0 0))) [2022-11-26 00:21:44,717 INFO L899 garLoopResultBuilder]: For program point L1592-1(lines 1587 1594) no Hoare annotation was computed. [2022-11-26 00:21:44,717 INFO L895 garLoopResultBuilder]: At program point L1584(line 1584) the Hoare annotation is: (<= 0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|)) [2022-11-26 00:21:44,717 INFO L895 garLoopResultBuilder]: At program point L1584-1(line 1584) the Hoare annotation is: (<= 0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|)) [2022-11-26 00:21:44,717 INFO L902 garLoopResultBuilder]: At program point L1582(line 1582) the Hoare annotation is: true [2022-11-26 00:21:44,717 INFO L899 garLoopResultBuilder]: For program point L1582-1(line 1582) no Hoare annotation was computed. [2022-11-26 00:21:44,718 INFO L895 garLoopResultBuilder]: At program point L1605(line 1605) the Hoare annotation is: (<= 0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|)) [2022-11-26 00:21:44,718 INFO L899 garLoopResultBuilder]: For program point L1605-1(lines 1595 1607) no Hoare annotation was computed. [2022-11-26 00:21:44,718 INFO L895 garLoopResultBuilder]: At program point L1601(line 1601) the Hoare annotation is: (<= 0 (+ 2 |ULTIMATE.start_CWE191_Integer_Underflow__int_fgets_sub_63b_goodG2BSink_~data~2#1|)) [2022-11-26 00:21:44,718 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1591) no Hoare annotation was computed. [2022-11-26 00:21:44,719 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 1600) no Hoare annotation was computed. [2022-11-26 00:21:44,719 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-11-26 00:21:44,720 INFO L899 garLoopResultBuilder]: For program point L1591(line 1591) no Hoare annotation was computed. [2022-11-26 00:21:44,720 INFO L899 garLoopResultBuilder]: For program point L1591-1(line 1591) no Hoare annotation was computed. [2022-11-26 00:21:44,724 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-11-26 00:21:44,727 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-26 00:21:44,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 12:21:44 BoogieIcfgContainer [2022-11-26 00:21:44,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-26 00:21:44,742 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-26 00:21:44,742 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-26 00:21:44,742 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-26 00:21:44,743 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 12:21:42" (3/4) ... [2022-11-26 00:21:44,746 INFO L137 WitnessPrinter]: Generating witness for correct program [2022-11-26 00:21:44,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printLine [2022-11-26 00:21:44,751 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure printIntLine [2022-11-26 00:21:44,760 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 27 nodes and edges [2022-11-26 00:21:44,760 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2022-11-26 00:21:44,761 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2022-11-26 00:21:44,761 INFO L915 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2022-11-26 00:21:44,799 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/witness.graphml [2022-11-26 00:21:44,800 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-26 00:21:44,800 INFO L158 Benchmark]: Toolchain (without parser) took 3860.60ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 104.9MB in the beginning and 103.0MB in the end (delta: 1.8MB). Peak memory consumption was 51.9MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,801 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-26 00:21:44,801 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1404.86ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 104.9MB in the beginning and 152.9MB in the end (delta: -48.0MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,801 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.41ms. Allocated memory is still 203.4MB. Free memory was 152.9MB in the beginning and 150.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,802 INFO L158 Benchmark]: Boogie Preprocessor took 34.70ms. Allocated memory is still 203.4MB. Free memory was 149.7MB in the beginning and 148.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,802 INFO L158 Benchmark]: RCFGBuilder took 536.49ms. Allocated memory is still 203.4MB. Free memory was 148.7MB in the beginning and 129.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,803 INFO L158 Benchmark]: TraceAbstraction took 1762.80ms. Allocated memory is still 203.4MB. Free memory was 129.8MB in the beginning and 106.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,803 INFO L158 Benchmark]: Witness Printer took 57.89ms. Allocated memory is still 203.4MB. Free memory was 106.2MB in the beginning and 103.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-26 00:21:44,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 155.2MB. Free memory is still 100.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1404.86ms. Allocated memory was 155.2MB in the beginning and 203.4MB in the end (delta: 48.2MB). Free memory was 104.9MB in the beginning and 152.9MB in the end (delta: -48.0MB). Peak memory consumption was 59.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.41ms. Allocated memory is still 203.4MB. Free memory was 152.9MB in the beginning and 150.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.70ms. Allocated memory is still 203.4MB. Free memory was 149.7MB in the beginning and 148.7MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 536.49ms. Allocated memory is still 203.4MB. Free memory was 148.7MB in the beginning and 129.8MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 1762.80ms. Allocated memory is still 203.4MB. Free memory was 129.8MB in the beginning and 106.2MB in the end (delta: 23.7MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 57.89ms. Allocated memory is still 203.4MB. Free memory was 106.2MB in the beginning and 103.0MB in the end (delta: 3.1MB). 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 - PositiveResult [Line: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1591]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 1600]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 27 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 1.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 38 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 30 mSDsluCounter, 97 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 38 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 50 IncrementalHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 59 mSDtfsCounter, 50 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27occurred in iteration=0, InterpolantAutomatonStates: 13, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 13 PreInvPairs, 13 NumberOfFragments, 52 HoareAnnotationTreeSize, 13 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 40 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 1584]: Loop Invariant Derived loop invariant: 0 <= 2 + data RESULT: Ultimate proved your program to be correct! [2022-11-26 00:21:44,822 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_6ea98e45-4f35-421e-a97c-65ae241cafb4/bin/utaipan-ByfvJB40ur/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: TRUE