./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/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_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/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_1c4d8418-54a0-48d1-a105-927415e18b0f/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 a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:36:51,979 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:36:51,980 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:36:52,000 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:36:52,000 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:36:52,001 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:36:52,002 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:36:52,004 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:36:52,005 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:36:52,006 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:36:52,007 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:36:52,008 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:36:52,009 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:36:52,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:36:52,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:36:52,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:36:52,012 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:36:52,013 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:36:52,015 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:36:52,017 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:36:52,018 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:36:52,019 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:36:52,020 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:36:52,021 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:36:52,024 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:36:52,025 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:36:52,025 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:36:52,026 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:36:52,026 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:36:52,027 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:36:52,028 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:36:52,029 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:36:52,029 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:36:52,030 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:36:52,031 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:36:52,031 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:36:52,032 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:36:52,032 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:36:52,032 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:36:52,033 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:36:52,034 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:36:52,035 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:36:52,059 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:36:52,059 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:36:52,060 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:36:52,060 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:36:52,061 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:36:52,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:36:52,061 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:36:52,061 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:36:52,061 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:36:52,062 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:36:52,062 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:36:52,062 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:36:52,062 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:36:52,062 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:36:52,063 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:36:52,063 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:36:52,063 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:36:52,063 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:36:52,064 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:36:52,064 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:36:52,064 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:36:52,065 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:36:52,066 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:36:52,066 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:36:52,066 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:36:52,066 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:36:52,066 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:52,067 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:36:52,067 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:36:52,067 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:36:52,067 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:36:52,067 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:36:52,068 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:36:52,068 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:36:52,068 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:36:52,068 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_1c4d8418-54a0-48d1-a105-927415e18b0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d [2022-11-25 22:36:52,287 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:36:52,312 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:36:52,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:36:52,317 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:36:52,317 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:36:52,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:36:55,345 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:36:55,809 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:36:55,810 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:36:55,837 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/e8d5e2c4d/4b524a92014f4e91a31ecc6e22bdc628/FLAG7b2db9a9b [2022-11-25 22:36:55,857 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/e8d5e2c4d/4b524a92014f4e91a31ecc6e22bdc628 [2022-11-25 22:36:55,861 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:36:55,864 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:36:55,870 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:55,870 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:36:55,878 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:36:55,880 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:55" (1/1) ... [2022-11-25 22:36:55,881 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41fe827b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:55, skipping insertion in model container [2022-11-25 22:36:55,881 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:36:55" (1/1) ... [2022-11-25 22:36:55,889 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:36:55,972 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:36:56,450 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:36:57,122 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:36:57,128 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:36:57,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:36:57,133 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:36:57,134 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:36:57,631 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:36:57,641 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:36:57,644 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:57,669 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:36:57,705 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:36:57,757 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:36:57,764 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:36:57,765 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:36:57,767 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:36:57,768 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:36:57,782 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:36:57,784 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:36:57,785 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:36:58,224 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:36:58,225 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58 WrapperNode [2022-11-25 22:36:58,225 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:36:58,226 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:58,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:36:58,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:36:58,234 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,297 INFO L138 Inliner]: procedures = 938, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-11-25 22:36:58,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:36:58,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:36:58,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:36:58,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:36:58,308 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,310 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,313 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,318 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,325 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,327 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,328 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,331 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:36:58,332 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:36:58,332 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:36:58,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:36:58,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (1/1) ... [2022-11-25 22:36:58,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:36:58,352 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:58,364 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:36:58,366 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:36:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-11-25 22:36:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:36:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:36:58,405 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:36:58,405 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:36:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:36:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-11-25 22:36:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 22:36:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:36:58,406 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:36:58,406 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:36:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:36:58,407 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:36:58,653 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:36:58,656 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:36:58,859 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:36:58,907 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:36:58,908 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:36:58,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:58 BoogieIcfgContainer [2022-11-25 22:36:58,910 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:36:58,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:36:58,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:36:58,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:36:58,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:36:55" (1/3) ... [2022-11-25 22:36:58,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5c781e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:58, skipping insertion in model container [2022-11-25 22:36:58,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:36:58" (2/3) ... [2022-11-25 22:36:58,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d5c781e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:36:58, skipping insertion in model container [2022-11-25 22:36:58,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:58" (3/3) ... [2022-11-25 22:36:58,920 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:36:58,941 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:36:58,941 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:36:59,001 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:36:59,010 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;@42a42d56, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:36:59,011 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:36:59,020 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) [2022-11-25 22:36:59,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:36:59,030 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:59,031 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:59,032 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:36:59,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:59,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2022-11-25 22:36:59,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:59,051 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324950583] [2022-11-25 22:36:59,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:59,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:59,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:36:59,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:36:59,295 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:36:59,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324950583] [2022-11-25 22:36:59,296 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324950583] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:36:59,296 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:36:59,296 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:36:59,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341462116] [2022-11-25 22:36:59,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:36:59,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:36:59,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:36:59,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:36:59,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:36:59,348 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) [2022-11-25 22:36:59,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:36:59,401 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-25 22:36:59,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:36:59,404 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 [2022-11-25 22:36:59,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:36:59,411 INFO L225 Difference]: With dead ends: 15 [2022-11-25 22:36:59,412 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:36:59,415 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 [2022-11-25 22:36:59,420 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 [2022-11-25 22:36:59,422 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] [2022-11-25 22:36:59,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:36:59,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-25 22:36:59,462 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) [2022-11-25 22:36:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-25 22:36:59,465 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-25 22:36:59,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:36:59,466 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-25 22:36:59,467 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) [2022-11-25 22:36:59,467 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-25 22:36:59,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:36:59,468 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:36:59,468 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:36:59,469 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:36:59,469 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:36:59,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:36:59,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2022-11-25 22:36:59,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:36:59,471 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674401857] [2022-11-25 22:36:59,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:59,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:36:59,541 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:36:59,541 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [205644685] [2022-11-25 22:36:59,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:36:59,542 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:36:59,542 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:36:59,546 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:36:59,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:36:59,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:36:59,752 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:36:59,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:36:59,819 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:36:59,820 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:36:59,821 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:36:59,846 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:36:59,859 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-11-25 22:37:00,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:37:00,055 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:37:00,058 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:37:00,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:37:00 BoogieIcfgContainer [2022-11-25 22:37:00,088 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:37:00,090 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:37:00,091 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:37:00,091 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:37:00,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:36:58" (3/4) ... [2022-11-25 22:37:00,095 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:37:00,095 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:37:00,097 INFO L158 Benchmark]: Toolchain (without parser) took 4232.07ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 112.5MB in the end (delta: 6.1MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,098 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:37:00,099 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2355.36ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,100 INFO L158 Benchmark]: Boogie Procedure Inliner took 71.84ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 104.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,101 INFO L158 Benchmark]: Boogie Preprocessor took 33.12ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 102.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,101 INFO L158 Benchmark]: RCFGBuilder took 578.58ms. Allocated memory is still 153.1MB. Free memory was 102.6MB in the beginning and 86.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,102 INFO L158 Benchmark]: TraceAbstraction took 1175.34ms. Allocated memory is still 153.1MB. Free memory was 85.9MB in the beginning and 112.5MB in the end (delta: -26.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2022-11-25 22:37:00,102 INFO L158 Benchmark]: Witness Printer took 4.91ms. Allocated memory is still 153.1MB. Free memory is still 112.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:37:00,113 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 113.2MB. Free memory is still 64.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2355.36ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 107.7MB in the end (delta: 10.9MB). Peak memory consumption was 92.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 71.84ms. Allocated memory is still 153.1MB. Free memory was 107.7MB in the beginning and 104.6MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.12ms. Allocated memory is still 153.1MB. Free memory was 104.6MB in the beginning and 102.6MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 578.58ms. Allocated memory is still 153.1MB. Free memory was 102.6MB in the beginning and 86.8MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1175.34ms. Allocated memory is still 153.1MB. Free memory was 85.9MB in the beginning and 112.5MB in the end (delta: -26.6MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Witness Printer took 4.91ms. Allocated memory is still 153.1MB. Free memory is still 112.5MB. 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: 1856]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1844. 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); [L1864] 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) [L1864] RET printLine("Calling bad()...") VAL [\old(argc)=19, argc=19, argv={18:13}, argv={18:13}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1865] CALL CWE190_Integer_Overflow__int_fgets_square_32_bad() [L1834] int data; [L1835] int *dataPtr1 = &data; [L1836] int *dataPtr2 = &data; [L1837] data = 0 [L1839] EXPR \read(*dataPtr1) [L1839] int data = *dataPtr1; [L1841] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1842] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1844] data = atoi(inputBuffer) [L1841] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1851] *dataPtr1 = data [L1854] EXPR \read(*dataPtr2) [L1854] int data = *dataPtr2; [L1856] data * data VAL [data=-536608769, data=-536608769, data={7:0}, dataPtr1={7:0}, dataPtr2={7:0}, 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: 1856]: 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: 1.1s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 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 [2022-11-25 22:37:00,143 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/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_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/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_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/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 a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:37:02,810 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:37:02,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:37:02,866 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:37:02,867 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:37:02,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:37:02,873 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:37:02,877 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:37:02,879 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:37:02,885 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:37:02,889 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:37:02,892 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:37:02,892 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:37:02,895 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:37:02,896 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:37:02,903 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:37:02,904 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:37:02,905 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:37:02,907 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:37:02,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:37:02,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:37:02,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:37:02,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:37:02,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:37:02,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:37:02,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:37:02,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:37:02,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:37:02,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:37:02,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:37:02,923 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:37:02,924 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:37:02,925 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:37:02,926 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:37:02,927 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:37:02,928 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:37:02,929 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:37:02,930 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:37:02,930 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:37:02,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:37:02,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:37:02,938 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 22:37:02,993 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:37:02,993 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:37:02,995 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:37:02,996 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:37:02,997 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:37:02,997 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:37:02,998 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:37:02,998 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:37:02,998 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:37:02,999 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:37:03,000 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:37:03,001 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:37:03,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:37:03,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:37:03,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:37:03,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:37:03,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:37:03,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:37:03,005 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:37:03,005 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:37:03,005 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:37:03,006 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:37:03,006 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:37:03,007 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:37:03,007 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:37:03,007 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:37:03,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:37:03,008 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:37:03,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:37:03,009 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:37:03,009 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:37:03,010 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:37:03,010 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:37:03,011 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:37:03,011 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:37:03,011 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:37:03,012 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:37:03,012 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_1c4d8418-54a0-48d1-a105-927415e18b0f/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a67dfe12a06fcc3adbf0bdb1b0af5b35df847c39990a2d3b73030372bad85c3d [2022-11-25 22:37:03,471 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:37:03,498 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:37:03,503 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:37:03,504 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:37:03,505 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:37:03,507 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:37:06,701 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:37:07,197 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:37:07,212 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:37:07,251 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/6eda52a14/231545cd053d4a07b728fbb7b1f40875/FLAGf4b22fb72 [2022-11-25 22:37:07,269 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/data/6eda52a14/231545cd053d4a07b728fbb7b1f40875 [2022-11-25 22:37:07,272 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:37:07,273 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:37:07,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:37:07,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:37:07,280 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:37:07,281 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:37:07" (1/1) ... [2022-11-25 22:37:07,283 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e4c8348 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:07, skipping insertion in model container [2022-11-25 22:37:07,283 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:37:07" (1/1) ... [2022-11-25 22:37:07,291 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:37:07,354 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:37:07,812 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:37:08,494 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:37:08,501 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:37:08,505 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:37:08,516 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:37:08,517 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:37:09,133 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:37:09,146 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:37:09,149 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:37:09,172 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:37:09,203 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:37:09,250 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:37:09,252 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:37:09,253 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:37:09,255 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:37:09,256 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:37:09,267 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:37:09,269 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:37:09,269 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:37:09,515 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:37:09,516 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09 WrapperNode [2022-11-25 22:37:09,516 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:37:09,517 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:37:09,517 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:37:09,517 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:37:09,524 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,561 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,588 INFO L138 Inliner]: procedures = 943, calls = 68, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 61 [2022-11-25 22:37:09,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:37:09,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:37:09,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:37:09,590 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:37:09,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,603 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,613 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,616 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,617 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,621 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:37:09,622 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:37:09,622 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:37:09,622 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:37:09,623 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (1/1) ... [2022-11-25 22:37:09,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:37:09,642 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:37:09,655 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:37:09,678 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:37:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:37:09,693 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:37:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:37:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:37:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:37:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 22:37:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 22:37:09,694 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:37:09,694 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:37:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:37:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:37:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-11-25 22:37:09,695 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-11-25 22:37:09,880 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:37:09,882 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:37:11,395 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:37:11,401 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:37:11,401 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:37:11,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:37:11 BoogieIcfgContainer [2022-11-25 22:37:11,403 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:37:11,406 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:37:11,406 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:37:11,409 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:37:11,409 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:37:07" (1/3) ... [2022-11-25 22:37:11,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f5a875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:37:11, skipping insertion in model container [2022-11-25 22:37:11,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:37:09" (2/3) ... [2022-11-25 22:37:11,410 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@22f5a875 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:37:11, skipping insertion in model container [2022-11-25 22:37:11,410 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:37:11" (3/3) ... [2022-11-25 22:37:11,413 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_32_bad.i [2022-11-25 22:37:11,434 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:37:11,434 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:37:11,507 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:37:11,513 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;@56b47eca, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:37:11,514 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:37:11,517 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) [2022-11-25 22:37:11,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:37:11,525 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:37:11,525 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:37:11,526 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:37:11,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:37:11,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-11-25 22:37:11,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:37:11,544 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [591828984] [2022-11-25 22:37:11,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:37:11,545 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:37:11,545 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:37:11,555 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:37:11,559 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_1c4d8418-54a0-48d1-a105-927415e18b0f/bin/utaipan-ByfvJB40ur/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