./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh --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 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:24:05,020 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:24:05,022 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:24:05,040 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:24:05,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:24:05,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:24:05,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:24:05,044 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:24:05,046 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:24:05,046 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:24:05,047 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:24:05,048 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:24:05,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:24:05,049 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:24:05,050 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:24:05,051 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:24:05,052 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:24:05,053 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:24:05,054 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:24:05,056 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:24:05,057 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:24:05,058 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:24:05,059 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:24:05,060 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:24:05,063 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:24:05,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:24:05,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:24:05,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:24:05,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:24:05,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:24:05,065 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:24:05,066 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:24:05,067 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:24:05,068 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:24:05,068 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:24:05,069 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:24:05,069 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:24:05,069 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:24:05,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:24:05,070 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:24:05,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:24:05,072 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:24:05,091 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:24:05,092 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:24:05,092 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:24:05,092 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:24:05,093 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:24:05,093 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:24:05,093 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:24:05,093 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:24:05,093 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:24:05,093 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:24:05,094 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:24:05,094 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:24:05,094 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:24:05,094 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:24:05,094 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:24:05,094 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:24:05,095 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:24:05,095 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:24:05,095 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:24:05,095 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:24:05,096 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:24:05,097 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:24:05,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:24:05,097 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:24:05,097 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:24:05,097 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:05,097 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:24:05,098 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:24:05,099 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_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2022-12-14 10:24:05,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:24:05,333 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:24:05,335 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:24:05,336 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:24:05,336 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:24:05,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:07,918 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:24:08,212 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:24:08,212 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:08,230 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/0d5a31d61/aa9e0dab1e424fb6bcf484cc16fe5f22/FLAGead740970 [2022-12-14 10:24:08,244 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/0d5a31d61/aa9e0dab1e424fb6bcf484cc16fe5f22 [2022-12-14 10:24:08,247 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:24:08,248 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:24:08,249 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:08,250 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:24:08,253 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:24:08,254 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:08" (1/1) ... [2022-12-14 10:24:08,255 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55eb3809 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:08, skipping insertion in model container [2022-12-14 10:24:08,255 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:08" (1/1) ... [2022-12-14 10:24:08,262 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:24:08,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:24:08,674 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:24:09,082 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:24:09,086 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:09,088 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:09,090 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:09,091 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:09,502 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:24:09,507 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:24:09,507 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:09,514 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:24:09,527 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:24:09,556 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:24:09,557 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:09,558 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:09,560 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:09,560 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:09,570 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:24:09,571 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:24:09,572 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:09,895 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:24:09,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09 WrapperNode [2022-12-14 10:24:09,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:09,897 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:09,897 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:24:09,897 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:24:09,902 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,920 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,938 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 53 [2022-12-14 10:24:09,939 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:09,939 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:24:09,939 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:24:09,940 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:24:09,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,947 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,947 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,951 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,952 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,953 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,954 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,955 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:24:09,956 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:24:09,956 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:24:09,956 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:24:09,957 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (1/1) ... [2022-12-14 10:24:09,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:09,975 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:24:09,984 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:24:09,986 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:24:10,015 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:24:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:24:10,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:24:10,016 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:24:10,132 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:24:10,134 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:24:10,229 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:24:10,251 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:24:10,251 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:24:10,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:10 BoogieIcfgContainer [2022-12-14 10:24:10,253 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:24:10,255 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:24:10,255 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:24:10,257 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:24:10,257 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:24:08" (1/3) ... [2022-12-14 10:24:10,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460bcbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:24:10, skipping insertion in model container [2022-12-14 10:24:10,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:09" (2/3) ... [2022-12-14 10:24:10,258 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@460bcbfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:24:10, skipping insertion in model container [2022-12-14 10:24:10,258 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:10" (3/3) ... [2022-12-14 10:24:10,259 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:10,272 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:24:10,273 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:24:10,304 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:24:10,308 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;@386b1e19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:24:10,308 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:24:10,311 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 10:24:10,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:24:10,317 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:24:10,318 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:24:10,318 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:24:10,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:24:10,322 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2022-12-14 10:24:10,328 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:24:10,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950049361] [2022-12-14 10:24:10,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:10,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:24:10,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:24:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-14 10:24:10,494 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:24:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950049361] [2022-12-14 10:24:10,495 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950049361] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:24:10,495 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:24:10,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:24:10,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322307570] [2022-12-14 10:24:10,497 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:24:10,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:24:10,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:24:10,526 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:24:10,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:24:10,529 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 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 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:24:10,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:24:10,554 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-12-14 10:24:10,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:24:10,556 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 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 8 [2022-12-14 10:24:10,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:24:10,562 INFO L225 Difference]: With dead ends: 15 [2022-12-14 10:24:10,562 INFO L226 Difference]: Without dead ends: 11 [2022-12-14 10:24:10,564 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:24:10,568 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:24:10,569 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:24:10,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-12-14 10:24:10,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-12-14 10:24:10,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-14 10:24:10,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-12-14 10:24:10,598 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-12-14 10:24:10,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:24:10,599 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-12-14 10:24:10,599 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:24:10,599 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-12-14 10:24:10,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:24:10,600 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:24:10,600 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:24:10,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:24:10,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:24:10,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:24:10,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2022-12-14 10:24:10,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:24:10,602 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665959487] [2022-12-14 10:24:10,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:10,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:24:10,632 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:24:10,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [654179388] [2022-12-14 10:24:10,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:10,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:24:10,633 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:24:10,633 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:24:10,634 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:24:10,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:24:10,715 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:24:10,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:24:10,757 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:24:10,758 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:24:10,759 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:24:10,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:24:10,766 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:24:10,961 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:24:10,971 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:24:10,981 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:24:11,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:24:11 BoogieIcfgContainer [2022-12-14 10:24:11,035 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:24:11,037 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:24:11,037 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:24:11,038 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:24:11,039 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:10" (3/4) ... [2022-12-14 10:24:11,046 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:24:11,047 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:24:11,049 INFO L158 Benchmark]: Toolchain (without parser) took 2799.63ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 113.5MB in the beginning and 72.4MB in the end (delta: 41.1MB). Peak memory consumption was 71.4MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,050 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory was 124.0MB in the beginning and 124.0MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:24:11,051 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1646.84ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 113.5MB in the beginning and 130.9MB in the end (delta: -17.4MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,053 INFO L158 Benchmark]: Boogie Procedure Inliner took 42.37ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 126.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,054 INFO L158 Benchmark]: Boogie Preprocessor took 16.06ms. Allocated memory is still 180.4MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,055 INFO L158 Benchmark]: RCFGBuilder took 297.07ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 109.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,056 INFO L158 Benchmark]: TraceAbstraction took 780.72ms. Allocated memory is still 180.4MB. Free memory was 108.9MB in the beginning and 72.4MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. [2022-12-14 10:24:11,056 INFO L158 Benchmark]: Witness Printer took 9.99ms. Allocated memory is still 180.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:24:11,061 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory was 124.0MB in the beginning and 124.0MB in the end (delta: 29.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1646.84ms. Allocated memory was 148.9MB in the beginning and 180.4MB in the end (delta: 31.5MB). Free memory was 113.5MB in the beginning and 130.9MB in the end (delta: -17.4MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 42.37ms. Allocated memory is still 180.4MB. Free memory was 129.9MB in the beginning and 126.7MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 16.06ms. Allocated memory is still 180.4MB. Free memory was 126.7MB in the beginning and 124.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 297.07ms. Allocated memory is still 180.4MB. Free memory was 124.6MB in the beginning and 109.9MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 780.72ms. Allocated memory is still 180.4MB. Free memory was 108.9MB in the beginning and 72.4MB in the end (delta: 36.5MB). Peak memory consumption was 35.7MB. Max. memory is 16.1GB. * Witness Printer took 9.99ms. Allocated memory is still 180.4MB. Free memory is still 72.4MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. 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); [L1859] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1859] RET printLine("Calling bad()...") VAL [\old(argc)=27, argc=27, argv={28:26}, argv={28:26}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1851]: 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, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.7s, 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, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred 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, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:24:11,082 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh --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 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-14 10:24:13,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:24:13,010 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:24:13,022 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:24:13,023 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:24:13,024 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:24:13,026 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:24:13,029 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:24:13,031 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:24:13,033 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:24:13,034 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:24:13,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:24:13,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:24:13,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:24:13,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:24:13,041 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:24:13,042 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:24:13,043 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:24:13,046 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:24:13,049 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:24:13,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:24:13,053 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:24:13,054 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:24:13,055 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:24:13,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:24:13,063 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:24:13,063 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:24:13,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:24:13,065 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:24:13,066 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:24:13,067 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:24:13,068 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:24:13,074 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:24:13,074 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:24:13,075 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:24:13,076 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:24:13,076 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:24:13,077 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:24:13,077 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:24:13,078 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:24:13,078 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:24:13,079 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 10:24:13,104 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:24:13,105 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:24:13,105 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:24:13,105 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:24:13,106 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:24:13,106 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:24:13,106 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:24:13,106 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:24:13,106 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:24:13,106 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:24:13,107 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:24:13,107 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:24:13,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:24:13,108 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:24:13,109 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:24:13,110 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:24:13,110 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:24:13,110 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:24:13,110 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:13,110 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:24:13,111 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:24:13,112 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 600ea9758929cea5cc6c3604ff8aab9d74df31565d48a3e42be9c13c5a97fcc2 [2022-12-14 10:24:13,349 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:24:13,363 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:24:13,365 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:24:13,366 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:24:13,366 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:24:13,367 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:15,929 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:24:16,207 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:24:16,208 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:16,227 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/8cb631944/d4b2655b73754e4a866adb1ef9a6bbe2/FLAGa163fa279 [2022-12-14 10:24:16,241 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/data/8cb631944/d4b2655b73754e4a866adb1ef9a6bbe2 [2022-12-14 10:24:16,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:24:16,245 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:24:16,246 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:16,246 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:24:16,250 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:24:16,250 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:16" (1/1) ... [2022-12-14 10:24:16,251 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24993ffd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:16, skipping insertion in model container [2022-12-14 10:24:16,252 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:24:16" (1/1) ... [2022-12-14 10:24:16,259 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:24:16,318 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:24:16,695 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:24:17,115 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:24:17,119 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:17,120 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:17,122 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:17,122 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:17,440 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:24:17,444 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:24:17,445 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:17,454 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:24:17,467 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:24:17,514 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:24:17,515 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:17,516 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:24:17,518 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:17,519 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:24:17,530 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:24:17,532 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:24:17,533 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:24:17,791 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:24:17,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17 WrapperNode [2022-12-14 10:24:17,791 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:24:17,792 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:17,792 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:24:17,792 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:24:17,796 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,839 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 52 [2022-12-14 10:24:17,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:24:17,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:24:17,840 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:24:17,840 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:24:17,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,847 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,849 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,850 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,855 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,857 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:24:17,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:24:17,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:24:17,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:24:17,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (1/1) ... [2022-12-14 10:24:17,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:24:17,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:24:17,885 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:24:17,887 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:24:17,909 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:24:17,910 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:24:17,910 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:24:17,910 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:24:18,031 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:24:18,033 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:24:20,413 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:24:20,417 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:24:20,417 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:24:20,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:20 BoogieIcfgContainer [2022-12-14 10:24:20,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:24:20,420 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:24:20,420 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:24:20,422 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:24:20,422 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:24:16" (1/3) ... [2022-12-14 10:24:20,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69667c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:24:20, skipping insertion in model container [2022-12-14 10:24:20,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:24:17" (2/3) ... [2022-12-14 10:24:20,423 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69667c90 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:24:20, skipping insertion in model container [2022-12-14 10:24:20,423 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:20" (3/3) ... [2022-12-14 10:24:20,424 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_31_bad.i [2022-12-14 10:24:20,437 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:24:20,437 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:24:20,470 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:24:20,477 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;@66daf08a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:24:20,477 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:24:20,480 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 10:24:20,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:24:20,487 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:24:20,488 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:24:20,488 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:24:20,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:24:20,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-12-14 10:24:20,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:24:20,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1005623200] [2022-12-14 10:24:20,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:24:20,505 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:24:20,505 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:24:20,537 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-12-14 10:24:20,538 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-12-14 10:24:20,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:24:20,667 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:24:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:24:20,763 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:24:20,765 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:24:20,766 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:24:20,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:24:20,784 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:24:20,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-12-14 10:24:20,982 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 10:24:20,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:24:21,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:24:21 BoogieIcfgContainer [2022-12-14 10:24:21,028 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:24:21,028 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:24:21,028 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:24:21,028 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:24:21,029 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:24:20" (3/4) ... [2022-12-14 10:24:21,031 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:24:21,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:24:21,032 INFO L158 Benchmark]: Toolchain (without parser) took 4787.34ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 37.1MB in the beginning and 38.5MB in the end (delta: -1.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,033 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 41.9MB. Free memory was 20.6MB in the beginning and 20.6MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:24:21,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1545.06ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 36.9MB in the beginning and 31.7MB in the end (delta: 5.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.14ms. Allocated memory is still 75.5MB. Free memory was 31.7MB in the beginning and 27.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,034 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 75.5MB. Free memory was 27.9MB in the beginning and 25.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,035 INFO L158 Benchmark]: RCFGBuilder took 2557.38ms. Allocated memory is still 75.5MB. Free memory was 25.4MB in the beginning and 40.0MB in the end (delta: -14.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,035 INFO L158 Benchmark]: TraceAbstraction took 607.97ms. Allocated memory is still 75.5MB. Free memory was 39.5MB in the beginning and 38.8MB in the end (delta: 768.9kB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. [2022-12-14 10:24:21,035 INFO L158 Benchmark]: Witness Printer took 3.31ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 38.5MB in the end (delta: 321.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:24:21,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 41.9MB. Free memory was 20.6MB in the beginning and 20.6MB in the end (delta: 42.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1545.06ms. Allocated memory was 62.9MB in the beginning and 75.5MB in the end (delta: 12.6MB). Free memory was 36.9MB in the beginning and 31.7MB in the end (delta: 5.2MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.14ms. Allocated memory is still 75.5MB. Free memory was 31.7MB in the beginning and 27.9MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 75.5MB. Free memory was 27.9MB in the beginning and 25.4MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2557.38ms. Allocated memory is still 75.5MB. Free memory was 25.4MB in the beginning and 40.0MB in the end (delta: -14.7MB). Peak memory consumption was 10.2MB. Max. memory is 16.1GB. * TraceAbstraction took 607.97ms. Allocated memory is still 75.5MB. Free memory was 39.5MB in the beginning and 38.8MB in the end (delta: 768.9kB). Peak memory consumption was 2.5MB. Max. memory is 16.1GB. * Witness Printer took 3.31ms. Allocated memory is still 75.5MB. Free memory was 38.8MB in the beginning and 38.5MB in the end (delta: 321.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1851]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1859] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1859] RET printLine("Calling bad()...") VAL [\old(argc)=12, argc=12, argv={13:12}, argv={13:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1860] CALL CWE190_Integer_Overflow__int_fgets_square_31_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1848] int dataCopy = data; [L1849] int data = dataCopy; VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1851] data * data VAL [data=-2147483648, data=-2147483648, dataCopy=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1851]: 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, 22 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 10:24:21,054 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_27ab78a1-10fb-483e-9688-32f69192b109/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample