./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:19:25,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:19:25,731 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:19:25,774 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:19:25,775 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:19:25,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:19:25,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:19:25,784 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:19:25,787 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:19:25,792 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:19:25,793 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:19:25,794 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:19:25,794 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:19:25,795 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:19:25,796 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:19:25,797 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:19:25,798 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:19:25,799 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:19:25,801 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:19:25,802 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:19:25,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:19:25,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:19:25,814 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:19:25,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:19:25,830 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:19:25,831 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:19:25,832 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:19:25,833 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:19:25,834 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:19:25,835 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:19:25,835 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:19:25,836 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:19:25,838 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:19:25,839 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:19:25,840 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:19:25,841 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:19:25,842 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:19:25,842 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:19:25,842 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:19:25,844 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:19:25,846 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:19:25,847 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-11-25 22:19:25,884 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:19:25,884 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:19:25,885 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:19:25,885 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:19:25,886 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:19:25,887 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:19:25,887 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:19:25,887 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:19:25,887 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:19:25,888 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-11-25 22:19:25,889 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:19:25,889 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:19:25,889 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-11-25 22:19:25,889 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-11-25 22:19:25,890 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:19:25,890 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-11-25 22:19:25,890 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-11-25 22:19:25,890 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-11-25 22:19:25,891 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:19:25,891 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:19:25,891 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 22:19:25,892 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:19:25,892 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:19:25,892 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:19:25,892 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:19:25,892 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:19:25,893 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:19:25,893 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:19:25,893 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:19:25,893 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:19:25,894 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:19:25,894 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:25,894 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:19:25,894 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-11-25 22:19:25,895 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:19:25,895 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:19:25,895 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-11-25 22:19:25,895 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 22:19:25,895 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:19:25,896 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:19:25,896 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_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 [2022-11-25 22:19:26,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:19:26,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:19:26,205 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:19:26,206 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:19:26,207 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:19:26,208 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:29,289 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:19:29,759 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:19:29,760 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:29,795 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/a0011f45e/786bad90fba04d618d09cbab83015174/FLAGb91f52723 [2022-11-25 22:19:29,818 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/a0011f45e/786bad90fba04d618d09cbab83015174 [2022-11-25 22:19:29,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:19:29,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:19:29,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:29,833 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:19:29,838 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:19:29,839 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:29" (1/1) ... [2022-11-25 22:19:29,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f3d95b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:29, skipping insertion in model container [2022-11-25 22:19:29,840 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:29" (1/1) ... [2022-11-25 22:19:29,851 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:19:29,941 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:19:30,498 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:19:31,140 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:19:31,146 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:31,149 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:31,151 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:31,152 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:31,719 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:19:31,731 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:19:31,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:31,755 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:19:31,789 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:19:31,852 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:19:31,853 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:31,855 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:31,857 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:31,858 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:31,872 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:19:31,874 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:19:31,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:32,293 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:19:32,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32 WrapperNode [2022-11-25 22:19:32,296 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:32,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:32,298 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:19:32,298 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:19:32,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,341 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,366 INFO L138 Inliner]: procedures = 938, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 51 [2022-11-25 22:19:32,372 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:32,373 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:19:32,373 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:19:32,373 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:19:32,385 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,385 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,387 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,388 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,393 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,397 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,398 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,400 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:19:32,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:19:32,401 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:19:32,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:19:32,402 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (1/1) ... [2022-11-25 22:19:32,410 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:32,425 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:32,444 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:19:32,457 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:19:32,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 22:19:32,487 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:19:32,488 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:19:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:19:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2022-11-25 22:19:32,488 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 22:19:32,638 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:19:32,640 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:19:32,820 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:19:32,863 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:19:32,863 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:19:32,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:19:32 BoogieIcfgContainer [2022-11-25 22:19:32,866 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:19:32,868 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:19:32,868 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:19:32,871 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:19:32,872 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:19:29" (1/3) ... [2022-11-25 22:19:32,872 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744225f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:19:32, skipping insertion in model container [2022-11-25 22:19:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:32" (2/3) ... [2022-11-25 22:19:32,873 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@744225f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:19:32, skipping insertion in model container [2022-11-25 22:19:32,873 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:19:32" (3/3) ... [2022-11-25 22:19:32,875 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:32,894 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:19:32,894 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:19:32,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:19:32,949 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;@7b283eda, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:19:32,949 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:19:32,953 INFO L276 IsEmpty]: Start isEmpty. Operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:19:32,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-11-25 22:19:32,961 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:32,962 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:19:32,963 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:19:32,969 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:32,969 INFO L85 PathProgramCache]: Analyzing trace with hash 1607565872, now seen corresponding path program 1 times [2022-11-25 22:19:32,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:19:32,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130539260] [2022-11-25 22:19:32,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:32,982 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:19:33,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-11-25 22:19:33,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-11-25 22:19:33,178 INFO L136 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2022-11-25 22:19:33,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130539260] [2022-11-25 22:19:33,179 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130539260] provided 1 perfect and 0 imperfect interpolant sequences [2022-11-25 22:19:33,179 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-11-25 22:19:33,179 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-11-25 22:19:33,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165781642] [2022-11-25 22:19:33,182 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-11-25 22:19:33,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-11-25 22:19:33,187 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2022-11-25 22:19:33,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-11-25 22:19:33,215 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:19:33,217 INFO L87 Difference]: Start difference. First operand has 15 states, 8 states have (on average 1.375) internal successors, (11), 11 states have internal predecessors, (11), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:19:33,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-11-25 22:19:33,259 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2022-11-25 22:19:33,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-11-25 22:19:33,262 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 8 [2022-11-25 22:19:33,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-11-25 22:19:33,267 INFO L225 Difference]: With dead ends: 15 [2022-11-25 22:19:33,267 INFO L226 Difference]: Without dead ends: 11 [2022-11-25 22:19:33,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-11-25 22:19:33,273 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-11-25 22:19:33,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-11-25 22:19:33,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2022-11-25 22:19:33,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2022-11-25 22:19:33,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11 states, 7 states have (on average 1.1428571428571428) internal successors, (8), 8 states have internal predecessors, (8), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 22:19:33,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2022-11-25 22:19:33,320 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 8 [2022-11-25 22:19:33,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-11-25 22:19:33,322 INFO L495 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2022-11-25 22:19:33,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 6.0) internal successors, (6), 2 states have internal predecessors, (6), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-11-25 22:19:33,322 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2022-11-25 22:19:33,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-11-25 22:19:33,323 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:33,324 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:19:33,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 22:19:33,324 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:19:33,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:33,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1705065466, now seen corresponding path program 1 times [2022-11-25 22:19:33,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-11-25 22:19:33,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676937095] [2022-11-25 22:19:33,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:33,326 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 22:19:33,363 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-11-25 22:19:33,364 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [151612516] [2022-11-25 22:19:33,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:33,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:33,364 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:33,368 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-11-25 22:19:33,377 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-11-25 22:19:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:19:33,562 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 22:19:33,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:19:33,650 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-11-25 22:19:33,651 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 22:19:33,653 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 22:19:33,655 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 22:19:33,666 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-11-25 22:19:33,861 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-11-25 22:19:33,864 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-11-25 22:19:33,869 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 22:19:33,904 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 10:19:33 BoogieIcfgContainer [2022-11-25 22:19:33,904 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 22:19:33,905 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 22:19:33,907 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 22:19:33,908 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 22:19:33,908 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:19:32" (3/4) ... [2022-11-25 22:19:33,911 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 22:19:33,911 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 22:19:33,912 INFO L158 Benchmark]: Toolchain (without parser) took 4085.89ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 131.8MB in the beginning and 148.5MB in the end (delta: -16.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-11-25 22:19:33,913 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:19:33,913 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2464.93ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 97.0MB in the end (delta: 34.3MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. [2022-11-25 22:19:33,914 INFO L158 Benchmark]: Boogie Procedure Inliner took 74.98ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 92.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 22:19:33,914 INFO L158 Benchmark]: Boogie Preprocessor took 27.70ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 91.8MB in the end (delta: 945.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 22:19:33,915 INFO L158 Benchmark]: RCFGBuilder took 464.70ms. Allocated memory is still 167.8MB. Free memory was 90.7MB in the beginning and 76.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 22:19:33,915 INFO L158 Benchmark]: TraceAbstraction took 1036.88ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 76.0MB in the beginning and 149.6MB in the end (delta: -73.5MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:19:33,916 INFO L158 Benchmark]: Witness Printer took 6.04ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 148.5MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 22:19:33,919 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 113.2MB. Free memory is still 88.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2464.93ms. Allocated memory is still 167.8MB. Free memory was 131.3MB in the beginning and 97.0MB in the end (delta: 34.3MB). Peak memory consumption was 79.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 74.98ms. Allocated memory is still 167.8MB. Free memory was 97.0MB in the beginning and 92.7MB in the end (delta: 4.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.70ms. Allocated memory is still 167.8MB. Free memory was 92.7MB in the beginning and 91.8MB in the end (delta: 945.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 464.70ms. Allocated memory is still 167.8MB. Free memory was 90.7MB in the beginning and 76.0MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 1036.88ms. Allocated memory was 167.8MB in the beginning and 203.4MB in the end (delta: 35.7MB). Free memory was 76.0MB in the beginning and 149.6MB in the end (delta: -73.5MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.04ms. Allocated memory is still 203.4MB. Free memory was 149.6MB in the beginning and 148.5MB in the end (delta: 1.0MB). 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: 1848]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of atoi at line 1840. Possible FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); [L1855] CALL printLine("Calling bad()...") VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, line={4:0}] [L1414] COND TRUE line != ((void *)0) [L1855] RET printLine("Calling bad()...") VAL [\old(argc)=27, argc=27, argv={28:26}, argv={28:26}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1856] CALL CWE190_Integer_Overflow__int_fgets_square_01_bad() [L1834] int data; [L1835] data = 0 [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; [L1838] COND TRUE fgets(inputBuffer, (3 * sizeof(data) + 2), stdin) != ((void *)0) [L1840] data = atoi(inputBuffer) [L1837] char inputBuffer[(3 * sizeof(data) + 2)] = ""; VAL [data=526016075, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1848] data * data VAL [data=526016075, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] - UnprovableResult [Line: 1848]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 15 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 12 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4 IncrementalHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 12 mSDtfsCounter, 4 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, InterpolantAutomatonStates: 2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 7 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-11-25 22:19:33,946 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 22:19:36,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 22:19:36,534 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 22:19:36,576 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 22:19:36,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 22:19:36,581 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 22:19:36,584 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 22:19:36,588 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 22:19:36,590 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 22:19:36,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 22:19:36,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 22:19:36,600 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 22:19:36,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 22:19:36,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 22:19:36,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 22:19:36,611 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 22:19:36,612 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 22:19:36,612 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 22:19:36,614 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 22:19:36,616 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 22:19:36,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 22:19:36,621 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 22:19:36,622 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 22:19:36,623 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 22:19:36,636 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 22:19:36,636 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 22:19:36,637 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 22:19:36,639 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 22:19:36,642 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 22:19:36,643 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 22:19:36,644 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 22:19:36,645 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 22:19:36,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 22:19:36,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 22:19:36,656 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 22:19:36,656 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 22:19:36,657 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 22:19:36,658 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 22:19:36,658 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 22:19:36,659 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 22:19:36,660 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 22:19:36,665 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-11-25 22:19:36,708 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 22:19:36,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 22:19:36,710 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 22:19:36,710 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 22:19:36,711 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 22:19:36,712 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 22:19:36,712 INFO L138 SettingsManager]: * User list type=DISABLED [2022-11-25 22:19:36,712 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-11-25 22:19:36,713 INFO L138 SettingsManager]: * Explicit value domain=true [2022-11-25 22:19:36,713 INFO L138 SettingsManager]: * Octagon Domain=false [2022-11-25 22:19:36,714 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-11-25 22:19:36,715 INFO L138 SettingsManager]: * Interval Domain=false [2022-11-25 22:19:36,715 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 22:19:36,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 22:19:36,716 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 22:19:36,716 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 22:19:36,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 22:19:36,717 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 22:19:36,717 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 22:19:36,717 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 22:19:36,718 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 22:19:36,718 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 22:19:36,718 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 22:19:36,719 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 22:19:36,719 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 22:19:36,719 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 22:19:36,720 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 22:19:36,720 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 22:19:36,720 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:36,720 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 22:19:36,721 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 22:19:36,721 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 22:19:36,722 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-11-25 22:19:36,722 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 22:19:36,722 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 22:19:36,723 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-11-25 22:19:36,723 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 22:19:36,723 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_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bde35519349d7c5ad96c6c4f64cc23cbdee5702940663566e54ee232d1d054d9 [2022-11-25 22:19:37,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 22:19:37,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 22:19:37,170 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 22:19:37,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 22:19:37,172 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 22:19:37,174 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/../../sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:40,521 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 22:19:40,947 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 22:19:40,956 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/sv-benchmarks/c/Juliet_Test/CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:40,989 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/fcd0bcd76/3a7bab7c5a944b27a04afe604aa7eaa7/FLAG1033cd937 [2022-11-25 22:19:41,014 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/data/fcd0bcd76/3a7bab7c5a944b27a04afe604aa7eaa7 [2022-11-25 22:19:41,017 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 22:19:41,019 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 22:19:41,022 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:41,022 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 22:19:41,026 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 22:19:41,027 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:41" (1/1) ... [2022-11-25 22:19:41,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39d6a38a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:41, skipping insertion in model container [2022-11-25 22:19:41,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 10:19:41" (1/1) ... [2022-11-25 22:19:41,037 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 22:19:41,099 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 22:19:41,643 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:19:42,378 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:19:42,383 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:42,384 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:42,386 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:42,387 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:42,842 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:19:42,848 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:19:42,849 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:42,873 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 22:19:42,907 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 22:19:42,972 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 22:19:42,974 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:42,975 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 22:19:42,977 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:42,978 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 22:19:42,995 WARN L623 FunctionHandler]: Unknown extern function fgets [2022-11-25 22:19:43,016 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 22:19:43,017 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 22:19:43,493 INFO L208 MainTranslator]: Completed translation [2022-11-25 22:19:43,493 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43 WrapperNode [2022-11-25 22:19:43,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 22:19:43,495 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:43,495 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 22:19:43,496 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 22:19:43,505 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,582 INFO L138 Inliner]: procedures = 943, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 50 [2022-11-25 22:19:43,583 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 22:19:43,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 22:19:43,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 22:19:43,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 22:19:43,606 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,607 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,615 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,615 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,635 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,637 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,639 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,642 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 22:19:43,659 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 22:19:43,659 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 22:19:43,659 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 22:19:43,660 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (1/1) ... [2022-11-25 22:19:43,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 22:19:43,683 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 [2022-11-25 22:19:43,704 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 22:19:43,743 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 22:19:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 22:19:43,764 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 22:19:43,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 22:19:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-11-25 22:19:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 22:19:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE1 [2022-11-25 22:19:43,765 INFO L130 BoogieDeclarations]: Found specification of procedure fgets [2022-11-25 22:19:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 22:19:43,766 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 22:19:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-11-25 22:19:43,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 22:19:43,979 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 22:19:43,996 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 22:19:46,745 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 22:19:46,751 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 22:19:46,751 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 22:19:46,753 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:19:46 BoogieIcfgContainer [2022-11-25 22:19:46,754 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 22:19:46,756 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 22:19:46,756 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 22:19:46,759 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 22:19:46,759 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 10:19:41" (1/3) ... [2022-11-25 22:19:46,760 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49613c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:19:46, skipping insertion in model container [2022-11-25 22:19:46,760 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 10:19:43" (2/3) ... [2022-11-25 22:19:46,761 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49613c21 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 10:19:46, skipping insertion in model container [2022-11-25 22:19:46,761 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 10:19:46" (3/3) ... [2022-11-25 22:19:46,762 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE190_Integer_Overflow__int_fgets_square_01_bad.i [2022-11-25 22:19:46,781 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 22:19:46,782 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 22:19:46,824 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 22:19:46,830 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;@4980cfb6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 22:19:46,831 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 22:19:46,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 22 states, 15 states have (on average 1.2666666666666666) internal successors, (19), 18 states have internal predecessors, (19), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-11-25 22:19:46,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 22:19:46,844 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 22:19:46,845 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 22:19:46,845 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 22:19:46,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 22:19:46,850 INFO L85 PathProgramCache]: Analyzing trace with hash -1755060030, now seen corresponding path program 1 times [2022-11-25 22:19:46,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-11-25 22:19:46,868 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1775688033] [2022-11-25 22:19:46,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 22:19:46,869 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 22:19:46,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/mathsat [2022-11-25 22:19:46,870 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 22:19:46,872 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8cd66ec9-a7ff-44c6-94d0-e47b09f77351/bin/utaipan-ByfvJB40ur/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 22:19:47,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 22:19:47,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders.