./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 d0bec28414a29f5d94e08ce8b0a09d9bead349efbfc356a0522b9df0355fe2d5 --- 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 10:27:32,007 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:27:32,009 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:27:32,027 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:27:32,028 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:27:32,029 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:27:32,030 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:27:32,032 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:27:32,033 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:27:32,034 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:27:32,035 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:27:32,036 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:27:32,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:27:32,037 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:27:32,038 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:27:32,039 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:27:32,040 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:27:32,041 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:27:32,042 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:27:32,044 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:27:32,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:27:32,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:27:32,047 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:27:32,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:27:32,051 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:27:32,051 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:27:32,052 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:27:32,052 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:27:32,053 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:27:32,054 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:27:32,054 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:27:32,055 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:27:32,055 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:27:32,056 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:27:32,057 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:27:32,057 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:27:32,058 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:27:32,058 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:27:32,058 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:27:32,059 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:27:32,059 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:27:32,060 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 10:27:32,080 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:27:32,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:27:32,081 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:27:32,081 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:27:32,082 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:27:32,082 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:27:32,082 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:27:32,082 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:27:32,082 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:27:32,083 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 10:27:32,083 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:27:32,083 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:27:32,083 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 10:27:32,083 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 10:27:32,084 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:27:32,084 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 10:27:32,084 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 10:27:32,084 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 10:27:32,085 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:27:32,085 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:27:32,085 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:27:32,086 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:27:32,087 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:27:32,087 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:27:32,087 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:27:32,087 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:27:32,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:27:32,088 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:27:32,088 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 10:27:32,088 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:27:32,088 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:27:32,088 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 10:27:32,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 10:27:32,089 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:27:32,089 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:27:32,089 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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0bec28414a29f5d94e08ce8b0a09d9bead349efbfc356a0522b9df0355fe2d5 [2022-12-14 10:27:32,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:27:32,283 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:27:32,285 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:27:32,286 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:27:32,286 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:27:32,287 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:34,859 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:27:35,167 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:27:35,168 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:35,189 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/6bfebb239/25b2fd79ff6a4776bbc1313e306f8ab4/FLAGe68fcd567 [2022-12-14 10:27:35,204 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/6bfebb239/25b2fd79ff6a4776bbc1313e306f8ab4 [2022-12-14 10:27:35,206 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:27:35,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:27:35,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:27:35,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:27:35,212 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:27:35,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:27:35" (1/1) ... [2022-12-14 10:27:35,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4f42b684 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:35, skipping insertion in model container [2022-12-14 10:27:35,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:27:35" (1/1) ... [2022-12-14 10:27:35,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:27:35,284 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:27:35,684 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:27:36,078 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:27:36,082 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:36,084 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:36,085 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:36,086 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:36,434 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:27:36,438 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:27:36,439 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:27:36,446 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:27:36,463 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:27:36,502 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:27:36,504 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:36,505 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:36,507 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:36,508 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:36,521 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:27:36,522 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:27:36,523 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:27:36,793 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:27:36,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36 WrapperNode [2022-12-14 10:27:36,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:27:36,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:27:36,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:27:36,794 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:27:36,800 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,825 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,849 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 55 [2022-12-14 10:27:36,849 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:27:36,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:27:36,850 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:27:36,850 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:27:36,857 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,857 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,867 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,869 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,870 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,873 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:27:36,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:27:36,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:27:36,874 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:27:36,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (1/1) ... [2022-12-14 10:27:36,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:27:36,893 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:36,905 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:27:36,907 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:27:36,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:27:36,936 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-12-14 10:27:36,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 10:27:37,062 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:27:37,064 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:27:37,165 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:27:37,187 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:27:37,187 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:27:37,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:37 BoogieIcfgContainer [2022-12-14 10:27:37,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:27:37,191 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:27:37,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:27:37,194 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:27:37,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:27:35" (1/3) ... [2022-12-14 10:27:37,194 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f200f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:37, skipping insertion in model container [2022-12-14 10:27:37,194 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:36" (2/3) ... [2022-12-14 10:27:37,195 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f200f00 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:37, skipping insertion in model container [2022-12-14 10:27:37,195 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:37" (3/3) ... [2022-12-14 10:27:37,196 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:37,210 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:27:37,210 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:27:37,245 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:27:37,249 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;@a566629, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:27:37,250 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:27:37,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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 10:27:37,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-12-14 10:27:37,258 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:37,259 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:37,259 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:27:37,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:37,263 INFO L85 PathProgramCache]: Analyzing trace with hash -970101220, now seen corresponding path program 1 times [2022-12-14 10:27:37,270 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:37,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46023667] [2022-12-14 10:27:37,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:37,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:37,415 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 10:27:37,415 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:37,416 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46023667] [2022-12-14 10:27:37,416 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46023667] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:37,416 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:37,417 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-14 10:27:37,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530377247] [2022-12-14 10:27:37,419 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:37,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-14 10:27:37,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:37,453 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-14 10:27:37,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-14 10:27:37,455 INFO L87 Difference]: Start difference. First operand has 18 states, 11 states have (on average 1.4545454545454546) internal successors, (16), 14 states have internal predecessors, (16), 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 10:27:37,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:37,481 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2022-12-14 10:27:37,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-14 10:27:37,483 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 10:27:37,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:37,488 INFO L225 Difference]: With dead ends: 18 [2022-12-14 10:27:37,488 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 10:27:37,490 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 10:27:37,493 INFO L413 NwaCegarLoop]: 17 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, 17 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 10:27:37,494 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 17 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:27:37,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 10:27:37,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 10:27:37,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.2222222222222223) internal successors, (11), 10 states have internal predecessors, (11), 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 10:27:37,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2022-12-14 10:27:37,517 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 8 [2022-12-14 10:27:37,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:37,518 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2022-12-14 10:27:37,519 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 10:27:37,519 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2022-12-14 10:27:37,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 10:27:37,519 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:37,520 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:37,520 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 10:27:37,520 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:27:37,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:37,521 INFO L85 PathProgramCache]: Analyzing trace with hash -8366685, now seen corresponding path program 1 times [2022-12-14 10:27:37,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:37,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160161957] [2022-12-14 10:27:37,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:37,521 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:37,537 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:27:37,537 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1131962987] [2022-12-14 10:27:37,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:37,537 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:37,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:37,539 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:27:37,540 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-12-14 10:27:37,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:37,611 INFO L263 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:27:37,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:27:37,640 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 10:27:37,640 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:27:37,641 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-12-14 10:27:37,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160161957] [2022-12-14 10:27:37,641 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-12-14 10:27:37,641 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1131962987] [2022-12-14 10:27:37,641 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1131962987] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:37,641 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:37,641 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:27:37,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1989788179] [2022-12-14 10:27:37,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:37,642 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:37,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-12-14 10:27:37,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:37,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:37,643 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 10:27:37,652 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:37,652 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2022-12-14 10:27:37,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:37,653 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 9 [2022-12-14 10:27:37,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:37,653 INFO L225 Difference]: With dead ends: 17 [2022-12-14 10:27:37,653 INFO L226 Difference]: Without dead ends: 13 [2022-12-14 10:27:37,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:37,654 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 10 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 10:27:37,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 10 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:27:37,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2022-12-14 10:27:37,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2022-12-14 10:27:37,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13 states, 9 states have (on average 1.1111111111111112) internal successors, (10), 10 states have internal predecessors, (10), 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 10:27:37,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2022-12-14 10:27:37,657 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 9 [2022-12-14 10:27:37,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:37,657 INFO L495 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2022-12-14 10:27:37,657 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 2 states have internal predecessors, (7), 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 10:27:37,657 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2022-12-14 10:27:37,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:27:37,658 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:37,658 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:37,664 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-12-14 10:27:37,858 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:37,860 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:27:37,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:37,862 INFO L85 PathProgramCache]: Analyzing trace with hash 252859848, now seen corresponding path program 1 times [2022-12-14 10:27:37,862 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 10:27:37,863 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [867713716] [2022-12-14 10:27:37,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:37,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 10:27:37,935 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-12-14 10:27:37,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1699790486] [2022-12-14 10:27:37,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:37,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:37,937 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:37,940 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-12-14 10:27:37,943 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-12-14 10:27:38,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:27:38,119 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:27:38,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:27:38,159 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 10:27:38,159 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:27:38,160 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:27:38,161 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:27:38,167 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-12-14 10:27:38,362 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-12-14 10:27:38,373 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-14 10:27:38,382 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:27:38,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:27:38 BoogieIcfgContainer [2022-12-14 10:27:38,418 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:27:38,419 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:27:38,419 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:27:38,419 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:27:38,419 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:37" (3/4) ... [2022-12-14 10:27:38,422 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:27:38,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:27:38,423 INFO L158 Benchmark]: Toolchain (without parser) took 3215.48ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 97.8MB in the beginning and 95.3MB in the end (delta: 2.5MB). Peak memory consumption was 31.8MB. Max. memory is 16.1GB. [2022-12-14 10:27:38,423 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:38,424 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1585.07ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 97.4MB in the beginning and 84.5MB in the end (delta: 12.9MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. [2022-12-14 10:27:38,424 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.14ms. Allocated memory is still 163.6MB. Free memory was 84.5MB in the beginning and 80.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:27:38,424 INFO L158 Benchmark]: Boogie Preprocessor took 22.85ms. Allocated memory is still 163.6MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:38,424 INFO L158 Benchmark]: RCFGBuilder took 315.89ms. Allocated memory is still 163.6MB. Free memory was 79.2MB in the beginning and 63.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2022-12-14 10:27:38,425 INFO L158 Benchmark]: TraceAbstraction took 1227.85ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 95.3MB in the end (delta: -32.9MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:38,425 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 163.6MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:38,427 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 136.3MB. Free memory is still 111.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1585.07ms. Allocated memory was 136.3MB in the beginning and 163.6MB in the end (delta: 27.3MB). Free memory was 97.4MB in the beginning and 84.5MB in the end (delta: 12.9MB). Peak memory consumption was 65.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.14ms. Allocated memory is still 163.6MB. Free memory was 84.5MB in the beginning and 80.3MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.85ms. Allocated memory is still 163.6MB. Free memory was 80.3MB in the beginning and 79.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 315.89ms. Allocated memory is still 163.6MB. Free memory was 79.2MB in the beginning and 63.5MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * TraceAbstraction took 1227.85ms. Allocated memory is still 163.6MB. Free memory was 62.4MB in the beginning and 95.3MB in the end (delta: -32.9MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 163.6MB. Free memory is still 95.3MB. 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: 1855]: 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); [L1832] static int staticTrue = 1; [L1833] static int staticFalse = 0; [L1863] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1863] RET printLine("Calling bad()...") VAL [\old(argc)=13, argc=13, argv={18:12}, argv={18:12}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1864] CALL CWE190_Integer_Overflow__int_fgets_square_05_bad() [L1836] int data; [L1837] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1838] COND TRUE \read(staticTrue) [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)] = ""; VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1852] COND TRUE \read(staticTrue) VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1855] data * data VAL [data=2147483647, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1855]: 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, 18 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 27 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8 IncrementalHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 27 mSDtfsCounter, 8 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 25 SizeOfPredicates, 0 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 2 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 10:27:38,439 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 d0bec28414a29f5d94e08ce8b0a09d9bead349efbfc356a0522b9df0355fe2d5 --- 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 10:27:40,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 10:27:40,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 10:27:40,285 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 10:27:40,285 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 10:27:40,286 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 10:27:40,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 10:27:40,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 10:27:40,290 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 10:27:40,291 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 10:27:40,292 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 10:27:40,293 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 10:27:40,293 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 10:27:40,294 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 10:27:40,295 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 10:27:40,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 10:27:40,297 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 10:27:40,303 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 10:27:40,305 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 10:27:40,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 10:27:40,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 10:27:40,309 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 10:27:40,310 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 10:27:40,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 10:27:40,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 10:27:40,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 10:27:40,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 10:27:40,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 10:27:40,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 10:27:40,317 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 10:27:40,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 10:27:40,318 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 10:27:40,319 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 10:27:40,320 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 10:27:40,321 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 10:27:40,321 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 10:27:40,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 10:27:40,322 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 10:27:40,322 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 10:27:40,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 10:27:40,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 10:27:40,324 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 10:27:40,344 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 10:27:40,344 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 10:27:40,345 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 10:27:40,345 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 10:27:40,345 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 10:27:40,346 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 10:27:40,346 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 10:27:40,347 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 10:27:40,347 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 10:27:40,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 10:27:40,348 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 10:27:40,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 10:27:40,349 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 10:27:40,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 10:27:40,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 10:27:40,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 10:27:40,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 10:27:40,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:27:40,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 10:27:40,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 10:27:40,354 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 10:27:40,354 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 10:27:40,354 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 10:27:40,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 10:27:40,355 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 10:27:40,355 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 10:27:40,355 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_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d0bec28414a29f5d94e08ce8b0a09d9bead349efbfc356a0522b9df0355fe2d5 [2022-12-14 10:27:40,596 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 10:27:40,612 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 10:27:40,614 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 10:27:40,615 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 10:27:40,615 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 10:27:40,616 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:43,221 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 10:27:43,508 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 10:27:43,509 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:43,529 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/b23d4445b/0302dd563bac4d23b4b7b38089d3ed8f/FLAG125222600 [2022-12-14 10:27:43,543 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/data/b23d4445b/0302dd563bac4d23b4b7b38089d3ed8f [2022-12-14 10:27:43,546 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 10:27:43,547 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 10:27:43,548 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 10:27:43,548 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 10:27:43,552 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 10:27:43,552 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:27:43" (1/1) ... [2022-12-14 10:27:43,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60034ca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:43, skipping insertion in model container [2022-12-14 10:27:43,554 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 10:27:43" (1/1) ... [2022-12-14 10:27:43,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 10:27:43,609 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 10:27:43,918 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:27:44,303 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:27:44,307 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:44,308 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:44,309 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:44,310 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:44,624 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:27:44,629 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:27:44,629 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:27:44,642 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 10:27:44,661 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 10:27:44,709 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 10:27:44,711 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:44,712 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 10:27:44,714 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:44,715 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 10:27:44,727 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-12-14 10:27:44,729 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 10:27:44,730 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 10:27:44,987 INFO L208 MainTranslator]: Completed translation [2022-12-14 10:27:44,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44 WrapperNode [2022-12-14 10:27:44,987 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 10:27:44,988 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 10:27:44,988 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 10:27:44,988 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 10:27:44,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,019 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,041 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 54 [2022-12-14 10:27:45,041 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 10:27:45,042 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 10:27:45,042 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 10:27:45,042 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 10:27:45,052 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,052 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,056 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,063 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,065 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,068 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,069 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,072 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 10:27:45,073 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 10:27:45,073 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 10:27:45,074 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 10:27:45,074 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (1/1) ... [2022-12-14 10:27:45,079 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 10:27:45,088 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 10:27:45,099 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 10:27:45,101 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 10:27:45,129 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-12-14 10:27:45,129 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-12-14 10:27:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 10:27:45,130 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 10:27:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-14 10:27:45,130 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 10:27:45,257 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 10:27:45,259 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 10:27:46,077 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 10:27:46,082 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 10:27:46,082 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 10:27:46,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:46 BoogieIcfgContainer [2022-12-14 10:27:46,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 10:27:46,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 10:27:46,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 10:27:46,088 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 10:27:46,088 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 10:27:43" (1/3) ... [2022-12-14 10:27:46,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e598375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:46, skipping insertion in model container [2022-12-14 10:27:46,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 10:27:44" (2/3) ... [2022-12-14 10:27:46,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e598375 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 10:27:46, skipping insertion in model container [2022-12-14 10:27:46,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:46" (3/3) ... [2022-12-14 10:27:46,090 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_05_bad.i [2022-12-14 10:27:46,104 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 10:27:46,104 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 10:27:46,139 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 10:27:46,144 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;@13a8d32f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 10:27:46,144 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 10:27:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-12-14 10:27:46,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 10:27:46,154 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:46,155 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:46,155 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:27:46,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:46,159 INFO L85 PathProgramCache]: Analyzing trace with hash -152054014, now seen corresponding path program 1 times [2022-12-14 10:27:46,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:27:46,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2118773256] [2022-12-14 10:27:46,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:46,170 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 10:27:46,170 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:27:46,171 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:46,172 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:46,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 10:27:46,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 10:27:46,303 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 10:27:46,355 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 10:27:46,355 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 10:27:46,356 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 10:27:46,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2118773256] [2022-12-14 10:27:46,357 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2118773256] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 10:27:46,357 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 10:27:46,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 10:27:46,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1925855492] [2022-12-14 10:27:46,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 10:27:46,362 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 10:27:46,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 10:27:46,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 10:27:46,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:46,386 INFO L87 Difference]: Start difference. First operand has 24 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:27:46,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 10:27:46,412 INFO L93 Difference]: Finished difference Result 40 states and 46 transitions. [2022-12-14 10:27:46,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 10:27:46,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-14 10:27:46,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 10:27:46,418 INFO L225 Difference]: With dead ends: 40 [2022-12-14 10:27:46,419 INFO L226 Difference]: Without dead ends: 17 [2022-12-14 10:27:46,420 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 10:27:46,423 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 19 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 10:27:46,423 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 10:27:46,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-12-14 10:27:46,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-12-14 10:27:46,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 12 states have (on average 1.25) internal successors, (15), 14 states have internal predecessors, (15), 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 10:27:46,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-12-14 10:27:46,447 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2022-12-14 10:27:46,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 10:27:46,448 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-12-14 10:27:46,448 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-14 10:27:46,448 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-12-14 10:27:46,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 10:27:46,449 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 10:27:46,449 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 10:27:46,463 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:46,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:46,650 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 10:27:46,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 10:27:46,650 INFO L85 PathProgramCache]: Analyzing trace with hash -104588099, now seen corresponding path program 1 times [2022-12-14 10:27:46,651 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 10:27:46,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1011104082] [2022-12-14 10:27:46,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 10:27:46,651 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 10:27:46,651 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 10:27:46,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:46,653 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 (3)] Waiting until timeout for monitored process [2022-12-14 10:27:46,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:27:46,742 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 10:27:46,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 10:27:46,825 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 10:27:46,826 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 10:27:46,827 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 10:27:46,828 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 10:27:46,843 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 (3)] Ended with exit code 0 [2022-12-14 10:27:47,029 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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 10:27:47,040 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 10:27:47,050 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 10:27:47,084 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 10:27:47 BoogieIcfgContainer [2022-12-14 10:27:47,084 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 10:27:47,085 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 10:27:47,085 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 10:27:47,085 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 10:27:47,085 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 10:27:46" (3/4) ... [2022-12-14 10:27:47,088 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 10:27:47,088 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 10:27:47,088 INFO L158 Benchmark]: Toolchain (without parser) took 3541.01ms. Allocated memory was 67.1MB in the beginning and 130.0MB in the end (delta: 62.9MB). Free memory was 38.5MB in the beginning and 61.6MB in the end (delta: -23.2MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,088 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:47,089 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1438.99ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 38.2MB in the beginning and 52.6MB in the end (delta: -14.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 53.74ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 48.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,089 INFO L158 Benchmark]: Boogie Preprocessor took 30.53ms. Allocated memory is still 107.0MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,090 INFO L158 Benchmark]: RCFGBuilder took 1010.17ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 96.2MB in the end (delta: -49.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,090 INFO L158 Benchmark]: TraceAbstraction took 998.86ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 61.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2022-12-14 10:27:47,090 INFO L158 Benchmark]: Witness Printer took 2.89ms. Allocated memory is still 130.0MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 10:27:47,092 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 67.1MB. Free memory is still 46.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1438.99ms. Allocated memory was 67.1MB in the beginning and 107.0MB in the end (delta: 39.8MB). Free memory was 38.2MB in the beginning and 52.6MB in the end (delta: -14.4MB). Peak memory consumption was 40.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 53.74ms. Allocated memory is still 107.0MB. Free memory was 52.6MB in the beginning and 48.4MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.53ms. Allocated memory is still 107.0MB. Free memory was 48.4MB in the beginning and 46.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 1010.17ms. Allocated memory was 107.0MB in the beginning and 130.0MB in the end (delta: 23.1MB). Free memory was 46.3MB in the beginning and 96.2MB in the end (delta: -49.9MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 998.86ms. Allocated memory is still 130.0MB. Free memory was 95.2MB in the beginning and 61.6MB in the end (delta: 33.6MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Witness Printer took 2.89ms. Allocated memory is still 130.0MB. Free memory is still 61.6MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1855]: 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); [L1832] static int staticTrue = 1; [L1833] static int staticFalse = 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, staticFalse=0, staticTrue=1] [L1863] 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}, staticFalse=0, staticTrue=1] [L1414] COND TRUE line != ((void *)0) [L1863] 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, staticFalse=0, staticTrue=1] [L1864] CALL CWE190_Integer_Overflow__int_fgets_square_05_bad() [L1836] int data; [L1837] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1838] COND TRUE \read(staticTrue) [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)] = ""; VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1852] COND TRUE \read(staticTrue) VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] [L1855] data * data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFalse=0, staticTrue=1] - UnprovableResult [Line: 1855]: 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, 24 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 19 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 19 mSDsluCounter, 25 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 25 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred in iteration=0, InterpolantAutomatonStates: 3, 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, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 49 ConjunctsInSsa, 2 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 10:27:47,107 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f17e7fae-bdb9-4112-90c8-92f3daf32edd/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