./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 44523fe1c151be8c0347b65fb3ae07590a3a442ffc04a3a25420210d7f0ed911 --- 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 06:45:34,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:45:34,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:45:34,850 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:45:34,850 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:45:34,851 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:45:34,852 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:45:34,853 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:45:34,854 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:45:34,855 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:45:34,856 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:45:34,857 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:45:34,857 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:45:34,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:45:34,858 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:45:34,859 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:45:34,860 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:45:34,861 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:45:34,862 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:45:34,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:45:34,864 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:45:34,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:45:34,866 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:45:34,867 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:45:34,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:45:34,869 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:45:34,870 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:45:34,870 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:45:34,871 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:45:34,871 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:45:34,871 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:45:34,872 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:45:34,873 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:45:34,873 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:45:34,874 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:45:34,874 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:45:34,875 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:45:34,875 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:45:34,875 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:45:34,876 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:45:34,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:45:34,877 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 06:45:34,892 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:45:34,893 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:45:34,893 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:45:34,893 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:45:34,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:45:34,894 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:45:34,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:45:34,895 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 06:45:34,895 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 06:45:34,895 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:45:34,895 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 06:45:34,895 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 06:45:34,895 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 06:45:34,896 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:45:34,896 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:45:34,896 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 06:45:34,896 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:45:34,897 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:45:34,898 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:45:34,898 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:45:34,898 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:45:34,898 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:45:34,898 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 06:45:34,898 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:45:34,898 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:45:34,899 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 06:45:34,899 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 06:45:34,899 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:45:34,899 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:45:34,899 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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44523fe1c151be8c0347b65fb3ae07590a3a442ffc04a3a25420210d7f0ed911 [2022-12-14 06:45:35,079 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:45:35,099 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:45:35,101 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:45:35,102 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:45:35,102 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:45:35,103 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:37,656 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:45:37,864 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:45:37,864 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:37,878 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/ffb658e67/9762ab5bb48747e19960e030ba0239c3/FLAG4a473ee67 [2022-12-14 06:45:38,207 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/ffb658e67/9762ab5bb48747e19960e030ba0239c3 [2022-12-14 06:45:38,209 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:45:38,210 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:45:38,211 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:45:38,211 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:45:38,214 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:45:38,214 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,215 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bfdd4d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38, skipping insertion in model container [2022-12-14 06:45:38,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:45:38,255 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:45:38,481 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:45:38,762 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:45:38,766 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:38,768 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:38,769 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:38,770 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:38,788 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:45:38,789 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:45:38,796 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:45:38,811 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:45:38,843 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:45:38,844 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:38,845 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:38,847 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:38,847 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:38,851 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:45:38,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:45:38,931 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:45:38,931 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38 WrapperNode [2022-12-14 06:45:38,931 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:45:38,932 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:45:38,932 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:45:38,932 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:45:38,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,959 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,979 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 06:45:38,980 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:45:38,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:45:38,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:45:38,981 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:45:38,987 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,990 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,997 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,998 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:38,999 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:39,002 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:45:39,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:45:39,003 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:45:39,003 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:45:39,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (1/1) ... [2022-12-14 06:45:39,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:45:39,020 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:45:39,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:45:39,034 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:45:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:45:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:45:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:45:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:45:39,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:45:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:45:39,057 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 06:45:39,150 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:45:39,152 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:45:39,266 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:45:39,345 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:45:39,345 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:45:39,347 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:39 BoogieIcfgContainer [2022-12-14 06:45:39,348 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:45:39,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:45:39,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:45:39,352 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:45:39,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:45:38" (1/3) ... [2022-12-14 06:45:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f169827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:39, skipping insertion in model container [2022-12-14 06:45:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:38" (2/3) ... [2022-12-14 06:45:39,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f169827 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:39, skipping insertion in model container [2022-12-14 06:45:39,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:39" (3/3) ... [2022-12-14 06:45:39,354 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:39,368 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:45:39,368 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:45:39,400 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:45:39,404 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;@6d55d301, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:45:39,404 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:45:39,407 INFO L276 IsEmpty]: Start isEmpty. Operand has 14 states, 8 states have (on average 1.375) 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 06:45:39,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-12-14 06:45:39,412 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:39,413 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:45:39,413 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:45:39,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:39,417 INFO L85 PathProgramCache]: Analyzing trace with hash 184305098, now seen corresponding path program 1 times [2022-12-14 06:45:39,424 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 06:45:39,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916178502] [2022-12-14 06:45:39,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:39,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 06:45:39,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:45:39,553 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:45:39,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:45:39,623 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 06:45:39,625 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:45:39,626 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:45:39,627 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:45:39,628 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 06:45:39,633 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 06:45:39,637 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:45:39,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:45:39 BoogieIcfgContainer [2022-12-14 06:45:39,657 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:45:39,657 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:45:39,657 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:45:39,658 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:45:39,658 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:39" (3/4) ... [2022-12-14 06:45:39,661 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 06:45:39,661 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:45:39,662 INFO L158 Benchmark]: Toolchain (without parser) took 1451.94ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 119.2MB in the end (delta: -9.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:45:39,662 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:45:39,662 INFO L158 Benchmark]: CACSL2BoogieTranslator took 720.81ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 106.7MB in the end (delta: 2.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. [2022-12-14 06:45:39,663 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.09ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 103.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 06:45:39,663 INFO L158 Benchmark]: Boogie Preprocessor took 21.31ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 101.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:45:39,663 INFO L158 Benchmark]: RCFGBuilder took 345.24ms. Allocated memory is still 155.2MB. Free memory was 101.8MB in the beginning and 81.5MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2022-12-14 06:45:39,664 INFO L158 Benchmark]: TraceAbstraction took 306.98ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 120.2MB in the end (delta: -39.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. [2022-12-14 06:45:39,664 INFO L158 Benchmark]: Witness Printer took 3.59ms. Allocated memory is still 155.2MB. Free memory was 120.2MB in the beginning and 119.2MB in the end (delta: 970.9kB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:45:39,667 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory was 78.4MB in the beginning and 78.3MB in the end (delta: 117.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 720.81ms. Allocated memory is still 155.2MB. Free memory was 109.4MB in the beginning and 106.7MB in the end (delta: 2.8MB). Peak memory consumption was 57.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.09ms. Allocated memory is still 155.2MB. Free memory was 106.7MB in the beginning and 103.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.31ms. Allocated memory is still 155.2MB. Free memory was 103.2MB in the beginning and 101.8MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 345.24ms. Allocated memory is still 155.2MB. Free memory was 101.8MB in the beginning and 81.5MB in the end (delta: 20.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 306.98ms. Allocated memory is still 155.2MB. Free memory was 80.8MB in the beginning and 120.2MB in the end (delta: -39.4MB). Peak memory consumption was 26.8MB. Max. memory is 16.1GB. * Witness Printer took 3.59ms. Allocated memory is still 155.2MB. Free memory was 120.2MB in the beginning and 119.2MB in the end (delta: 970.9kB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1559]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1554, overapproximation of bitwiseAnd at line 1554. 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); [L1567] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] RET printLine("Calling bad()...") VAL [\old(argc)=1073741826, argc=1073741826, argv={1073741828:1073741827}, argv={1073741828:1073741827}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_13_bad() [L1550] int data; [L1551] data = 0 [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE GLOBAL_CONST_FIVE==5 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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073741825] [L1559] data - 1 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, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=1073741825] - UnprovableResult [Line: 1559]: 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, 14 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 0.2s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-14 06:45:39,684 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally 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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 44523fe1c151be8c0347b65fb3ae07590a3a442ffc04a3a25420210d7f0ed911 --- 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 06:45:41,266 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 06:45:41,268 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 06:45:41,287 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 06:45:41,287 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 06:45:41,289 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 06:45:41,290 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 06:45:41,292 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 06:45:41,293 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 06:45:41,294 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 06:45:41,295 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 06:45:41,296 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 06:45:41,297 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 06:45:41,298 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 06:45:41,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 06:45:41,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 06:45:41,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 06:45:41,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 06:45:41,303 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 06:45:41,305 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 06:45:41,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 06:45:41,308 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 06:45:41,309 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 06:45:41,310 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 06:45:41,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 06:45:41,314 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 06:45:41,314 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 06:45:41,315 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 06:45:41,315 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 06:45:41,316 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 06:45:41,316 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 06:45:41,317 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 06:45:41,318 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 06:45:41,319 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 06:45:41,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 06:45:41,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 06:45:41,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 06:45:41,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 06:45:41,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 06:45:41,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 06:45:41,322 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 06:45:41,323 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 06:45:41,339 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 06:45:41,339 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 06:45:41,339 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 06:45:41,339 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 06:45:41,340 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 06:45:41,340 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 06:45:41,340 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 06:45:41,340 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 06:45:41,340 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 06:45:41,340 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 06:45:41,341 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 06:45:41,341 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 06:45:41,341 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 06:45:41,341 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 06:45:41,341 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 06:45:41,342 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 06:45:41,343 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 06:45:41,343 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 06:45:41,343 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 06:45:41,343 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 06:45:41,343 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:45:41,343 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 06:45:41,343 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 06:45:41,349 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 06:45:41,350 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_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 44523fe1c151be8c0347b65fb3ae07590a3a442ffc04a3a25420210d7f0ed911 [2022-12-14 06:45:41,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 06:45:41,563 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 06:45:41,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 06:45:41,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 06:45:41,566 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 06:45:41,567 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:44,224 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 06:45:44,462 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 06:45:44,462 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:44,475 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/bcb7e8ecb/a9b94c4fe003485295c80865d1fe1216/FLAG2552eb260 [2022-12-14 06:45:44,485 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/data/bcb7e8ecb/a9b94c4fe003485295c80865d1fe1216 [2022-12-14 06:45:44,487 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 06:45:44,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 06:45:44,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 06:45:44,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 06:45:44,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 06:45:44,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:44" (1/1) ... [2022-12-14 06:45:44,493 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8ec164d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:44, skipping insertion in model container [2022-12-14 06:45:44,493 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:45:44" (1/1) ... [2022-12-14 06:45:44,498 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 06:45:44,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 06:45:44,771 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:45:45,050 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:45:45,054 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:45,055 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:45,056 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:45,057 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:45,074 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:45:45,074 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:45:45,084 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 06:45:45,097 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 06:45:45,128 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 06:45:45,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:45,130 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 06:45:45,132 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:45,132 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 06:45:45,136 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 06:45:45,137 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 06:45:45,236 INFO L208 MainTranslator]: Completed translation [2022-12-14 06:45:45,236 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45 WrapperNode [2022-12-14 06:45:45,236 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 06:45:45,237 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 06:45:45,237 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 06:45:45,237 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 06:45:45,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,259 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,274 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 56 [2022-12-14 06:45:45,275 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 06:45:45,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 06:45:45,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 06:45:45,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 06:45:45,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,284 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,284 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,292 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,293 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,296 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 06:45:45,296 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 06:45:45,296 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 06:45:45,296 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 06:45:45,297 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (1/1) ... [2022-12-14 06:45:45,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 06:45:45,313 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 06:45:45,324 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 06:45:45,326 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 06:45:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 06:45:45,354 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 06:45:45,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 06:45:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 06:45:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 06:45:45,355 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 06:45:45,355 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 06:45:45,468 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 06:45:45,469 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 06:45:45,578 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 06:45:45,583 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 06:45:45,584 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 06:45:45,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:45 BoogieIcfgContainer [2022-12-14 06:45:45,586 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 06:45:45,588 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 06:45:45,588 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 06:45:45,591 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 06:45:45,591 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:45:44" (1/3) ... [2022-12-14 06:45:45,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76be0da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:45, skipping insertion in model container [2022-12-14 06:45:45,592 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:45" (2/3) ... [2022-12-14 06:45:45,592 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76be0da8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:45, skipping insertion in model container [2022-12-14 06:45:45,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:45" (3/3) ... [2022-12-14 06:45:45,594 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_13_bad.i [2022-12-14 06:45:45,608 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 06:45:45,608 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 06:45:45,650 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 06:45:45,655 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;@9be538b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 06:45:45,655 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 06:45:45,658 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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 06:45:45,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-14 06:45:45,664 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:45,665 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:45:45,665 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:45:45,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:45,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-14 06:45:45,678 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:45:45,679 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [274534691] [2022-12-14 06:45:45,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:45,679 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 06:45:45,679 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:45:45,680 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:45,681 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 06:45:45,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 42 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 06:45:45,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 06:45:45,814 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 06:45:45,814 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 06:45:45,815 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 06:45:45,815 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [274534691] [2022-12-14 06:45:45,815 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [274534691] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 06:45:45,816 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 06:45:45,816 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-14 06:45:45,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769434027] [2022-12-14 06:45:45,818 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 06:45:45,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 06:45:45,823 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 06:45:45,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 06:45:45,852 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 06:45:45,854 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 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) 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 06:45:45,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 06:45:45,879 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-14 06:45:45,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 06:45:45,882 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 06:45:45,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 06:45:45,888 INFO L225 Difference]: With dead ends: 38 [2022-12-14 06:45:45,888 INFO L226 Difference]: Without dead ends: 14 [2022-12-14 06:45:45,891 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 06:45:45,894 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 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 06:45:45,895 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 06:45:45,911 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-14 06:45:45,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-14 06:45:45,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 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 06:45:45,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-14 06:45:45,927 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-14 06:45:45,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 06:45:45,928 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-14 06:45:45,928 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 06:45:45,928 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-14 06:45:45,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 06:45:45,928 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 06:45:45,929 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 06:45:45,938 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,131 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 06:45:46,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 06:45:46,133 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-14 06:45:46,143 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 06:45:46,144 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2081778348] [2022-12-14 06:45:46,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 06:45:46,145 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 06:45:46,145 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 06:45:46,178 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,181 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:45:46,366 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 06:45:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 06:45:46,414 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 06:45:46,414 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 06:45:46,416 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 06:45:46,418 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 06:45:46,431 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,619 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 06:45:46,628 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 06:45:46,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 06:45:46,683 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 06:45:46 BoogieIcfgContainer [2022-12-14 06:45:46,683 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 06:45:46,684 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 06:45:46,684 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 06:45:46,684 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 06:45:46,685 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:45" (3/4) ... [2022-12-14 06:45:46,686 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 06:45:46,714 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 06:45:46,714 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 06:45:46,714 INFO L158 Benchmark]: Toolchain (without parser) took 2226.25ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 46.0MB in the beginning and 46.4MB in the end (delta: -347.3kB). Peak memory consumption was 16.3MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,715 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 06:45:46,715 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.76ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 46.8MB in the end (delta: -1.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,715 INFO L158 Benchmark]: Boogie Procedure Inliner took 37.59ms. Allocated memory is still 86.0MB. Free memory was 46.8MB in the beginning and 43.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,716 INFO L158 Benchmark]: Boogie Preprocessor took 20.68ms. Allocated memory is still 86.0MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,716 INFO L158 Benchmark]: RCFGBuilder took 289.50ms. Allocated memory is still 86.0MB. Free memory was 41.8MB in the beginning and 50.5MB in the end (delta: -8.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,716 INFO L158 Benchmark]: TraceAbstraction took 1095.53ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 49.0MB in the end (delta: 426.5kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,716 INFO L158 Benchmark]: Witness Printer took 29.91ms. Allocated memory is still 86.0MB. Free memory was 49.0MB in the beginning and 46.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 06:45:46,718 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 33.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.76ms. Allocated memory was 71.3MB in the beginning and 86.0MB in the end (delta: 14.7MB). Free memory was 45.8MB in the beginning and 46.8MB in the end (delta: -1.0MB). Peak memory consumption was 26.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 37.59ms. Allocated memory is still 86.0MB. Free memory was 46.8MB in the beginning and 43.9MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.68ms. Allocated memory is still 86.0MB. Free memory was 43.9MB in the beginning and 41.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 289.50ms. Allocated memory is still 86.0MB. Free memory was 41.8MB in the beginning and 50.5MB in the end (delta: -8.7MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. * TraceAbstraction took 1095.53ms. Allocated memory is still 86.0MB. Free memory was 49.4MB in the beginning and 49.0MB in the end (delta: 426.5kB). Peak memory consumption was 1.0MB. Max. memory is 16.1GB. * Witness Printer took 29.91ms. Allocated memory is still 86.0MB. Free memory was 49.0MB in the beginning and 46.4MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 1559]: integer overflow possible integer overflow possible We found a FailurePath: [L1522] const int GLOBAL_CONST_TRUE = 1; [L1523] const int GLOBAL_CONST_FALSE = 0; [L1524] const int GLOBAL_CONST_FIVE = 5; [L1525] int globalTrue = 1; [L1526] int globalFalse = 0; [L1527] int globalFive = 5; [L1546] int globalArgc = 0; [L1547] char** globalArgv = ((void *)0); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1567] 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={2:0}] [L1414] COND TRUE line != ((void *)0) [L1567] 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] [L1568] CALL CWE191_Integer_Underflow__int_rand_sub_13_bad() [L1550] int data; [L1551] 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] [L1552] COND TRUE GLOBAL_CONST_FIVE==5 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1554] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 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, rand()=0, rand()=0, rand()=65536, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1554] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1556] COND TRUE GLOBAL_CONST_FIVE==5 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] [L1559] data - 1 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] - UnprovableResult [Line: 1559]: 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, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 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, 22 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=23occurred 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, 42 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 proved your program to be incorrect! [2022-12-14 06:45:46,734 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f817fb7b-ab55-4594-b4a0-423cc7ffe814/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 Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)