./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 --- 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 05:44:35,052 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:44:35,054 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:44:35,073 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:44:35,073 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:44:35,075 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:44:35,076 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:44:35,077 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:44:35,079 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:44:35,080 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:44:35,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:44:35,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:44:35,082 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:44:35,083 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:44:35,085 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:44:35,086 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:44:35,087 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:44:35,088 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:44:35,089 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:44:35,091 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:44:35,093 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:44:35,094 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:44:35,095 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:44:35,096 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:44:35,100 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:44:35,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:44:35,101 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:44:35,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:44:35,102 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:44:35,103 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:44:35,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:44:35,104 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:44:35,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:44:35,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:44:35,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:44:35,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:44:35,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:44:35,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:44:35,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:44:35,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:44:35,109 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:44:35,110 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Default.epf [2022-12-14 05:44:35,131 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:44:35,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:44:35,132 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:44:35,132 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:44:35,132 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:44:35,133 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:44:35,133 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:44:35,133 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:44:35,133 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:44:35,133 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-12-14 05:44:35,133 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:44:35,134 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:44:35,134 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-12-14 05:44:35,134 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-12-14 05:44:35,134 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:44:35,134 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-12-14 05:44:35,135 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-12-14 05:44:35,135 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-12-14 05:44:35,135 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:44:35,135 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:44:35,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:44:35,136 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:44:35,137 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:44:35,137 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:44:35,137 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:44:35,137 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:44:35,137 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:44:35,138 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:44:35,138 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:44:35,138 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_3f11ec24-75f9-4f1c-9e05-62593fa63585/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 [2022-12-14 05:44:35,326 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:44:35,346 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:44:35,348 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:44:35,349 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:44:35,350 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:44:35,351 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:37,904 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:44:38,148 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:44:38,149 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:38,168 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/438a1179c/87a31d2f13e04e0299b9a89d252c8a2c/FLAG32b7f4112 [2022-12-14 05:44:38,181 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/438a1179c/87a31d2f13e04e0299b9a89d252c8a2c [2022-12-14 05:44:38,184 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:44:38,185 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:44:38,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:44:38,186 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:44:38,190 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:44:38,191 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:38" (1/1) ... [2022-12-14 05:44:38,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b7f9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:38, skipping insertion in model container [2022-12-14 05:44:38,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:38" (1/1) ... [2022-12-14 05:44:38,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:44:38,231 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:44:38,475 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:44:38,765 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:44:38,769 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:38,771 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:38,772 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:38,773 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:38,794 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:44:38,795 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:44:38,803 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:44:38,821 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:44:38,866 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:44:38,869 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:38,870 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:38,873 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:38,873 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:38,880 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:44:38,881 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:44:39,010 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:44:39,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39 WrapperNode [2022-12-14 05:44:39,010 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:44:39,011 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:44:39,011 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:44:39,011 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:44:39,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,042 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,059 INFO L138 Inliner]: procedures = 499, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-12-14 05:44:39,059 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:44:39,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:44:39,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:44:39,060 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:44:39,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,072 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,079 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,084 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:44:39,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:44:39,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:44:39,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:44:39,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (1/1) ... [2022-12-14 05:44:39,098 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:44:39,109 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:39,121 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:44:39,123 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:44:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:44:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:44:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:44:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:44:39,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:44:39,157 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:44:39,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-14 05:44:39,268 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:44:39,270 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:44:39,398 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:44:39,452 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:44:39,452 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:44:39,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:39 BoogieIcfgContainer [2022-12-14 05:44:39,455 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:44:39,456 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:44:39,457 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:44:39,459 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:44:39,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:44:38" (1/3) ... [2022-12-14 05:44:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e60712d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:39, skipping insertion in model container [2022-12-14 05:44:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:39" (2/3) ... [2022-12-14 05:44:39,460 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e60712d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:39, skipping insertion in model container [2022-12-14 05:44:39,460 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:39" (3/3) ... [2022-12-14 05:44:39,461 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:39,475 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:44:39,475 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:44:39,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:44:39,513 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4b533c91, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:44:39,513 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:44:39,516 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.5) internal successors, (18), 16 states have internal predecessors, (18), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 05:44:39,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-12-14 05:44:39,522 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:39,522 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:39,523 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:44:39,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:39,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1068305250, now seen corresponding path program 1 times [2022-12-14 05:44:39,538 INFO L118 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2022-12-14 05:44:39,538 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917686981] [2022-12-14 05:44:39,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:39,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-14 05:44:39,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:44:39,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:44:39,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:44:39,705 INFO L130 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2022-12-14 05:44:39,706 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:44:39,707 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:44:39,709 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:44:39,709 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-14 05:44:39,713 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-12-14 05:44:39,716 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:44:39,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:44:39 BoogieIcfgContainer [2022-12-14 05:44:39,734 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:44:39,735 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:44:39,735 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:44:39,735 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:44:39,735 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:39" (3/4) ... [2022-12-14 05:44:39,738 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-14 05:44:39,738 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:44:39,739 INFO L158 Benchmark]: Toolchain (without parser) took 1553.60ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 89.4MB in the beginning and 143.9MB in the end (delta: -54.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-12-14 05:44:39,739 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:44:39,739 INFO L158 Benchmark]: CACSL2BoogieTranslator took 824.27ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 89.1MB in the beginning and 128.2MB in the end (delta: -39.1MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. [2022-12-14 05:44:39,740 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.39ms. Allocated memory is still 195.0MB. Free memory was 128.2MB in the beginning and 124.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-14 05:44:39,740 INFO L158 Benchmark]: Boogie Preprocessor took 30.07ms. Allocated memory is still 195.0MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:44:39,740 INFO L158 Benchmark]: RCFGBuilder took 363.95ms. Allocated memory is still 195.0MB. Free memory was 123.1MB in the beginning and 104.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-14 05:44:39,741 INFO L158 Benchmark]: TraceAbstraction took 277.90ms. Allocated memory is still 195.0MB. Free memory was 104.3MB in the beginning and 143.9MB in the end (delta: -39.6MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:44:39,741 INFO L158 Benchmark]: Witness Printer took 3.10ms. Allocated memory is still 195.0MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:44:39,743 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 134.2MB. Free memory is still 73.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 824.27ms. Allocated memory was 134.2MB in the beginning and 195.0MB in the end (delta: 60.8MB). Free memory was 89.1MB in the beginning and 128.2MB in the end (delta: -39.1MB). Peak memory consumption was 41.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.39ms. Allocated memory is still 195.0MB. Free memory was 128.2MB in the beginning and 124.4MB in the end (delta: 3.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 30.07ms. Allocated memory is still 195.0MB. Free memory was 124.4MB in the beginning and 123.1MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 363.95ms. Allocated memory is still 195.0MB. Free memory was 123.1MB in the beginning and 104.3MB in the end (delta: 18.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 277.90ms. Allocated memory is still 195.0MB. Free memory was 104.3MB in the beginning and 143.9MB in the end (delta: -39.6MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.10ms. Allocated memory is still 195.0MB. Free memory is still 143.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1565]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1555, overapproximation of bitwiseAnd at line 1555. 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); [L1578] 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) [L1578] RET printLine("Calling bad()...") VAL [\old(argc)=2147516417, argc=2147516417, argv={2147516419:2147516418}, argv={2147516419:2147516418}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1579] CALL CWE191_Integer_Underflow__int_rand_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1563] case 7: [L1565] data-- VAL [data=-2147483648, 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: 1565]: 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, 20 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=20occurred 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, 9 NumberOfCodeBlocks, 9 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 05:44:39,756 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/config/TaipanReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 --- 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 05:44:41,426 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-14 05:44:41,427 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-14 05:44:41,451 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-14 05:44:41,452 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-14 05:44:41,453 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-14 05:44:41,454 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-14 05:44:41,456 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-14 05:44:41,458 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-14 05:44:41,459 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-14 05:44:41,460 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-14 05:44:41,461 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-14 05:44:41,462 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-14 05:44:41,463 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-14 05:44:41,464 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-14 05:44:41,465 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-14 05:44:41,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-14 05:44:41,467 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-14 05:44:41,469 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-14 05:44:41,471 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-14 05:44:41,473 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-14 05:44:41,474 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-14 05:44:41,475 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-14 05:44:41,476 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-14 05:44:41,480 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-14 05:44:41,480 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-14 05:44:41,480 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-14 05:44:41,481 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-14 05:44:41,482 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-14 05:44:41,483 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-14 05:44:41,483 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-14 05:44:41,484 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-14 05:44:41,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-14 05:44:41,485 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-14 05:44:41,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-14 05:44:41,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-14 05:44:41,488 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-14 05:44:41,488 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-14 05:44:41,488 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-14 05:44:41,489 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-14 05:44:41,490 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-14 05:44:41,490 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/config/svcomp-Overflow-64bit-Taipan_Bitvector.epf [2022-12-14 05:44:41,513 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-14 05:44:41,513 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-14 05:44:41,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-14 05:44:41,514 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-14 05:44:41,514 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * User list type=DISABLED [2022-12-14 05:44:41,515 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * Explicit value domain=true [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * Octagon Domain=false [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-12-14 05:44:41,515 INFO L138 SettingsManager]: * Interval Domain=false [2022-12-14 05:44:41,516 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-14 05:44:41,516 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-14 05:44:41,517 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-14 05:44:41,518 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-14 05:44:41,518 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:44:41,519 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-14 05:44:41,519 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-12-14 05:44:41,520 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-14 05:44:41,520 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_3f11ec24-75f9-4f1c-9e05-62593fa63585/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 90aa6c1ebc353e827c4144d5889d21bd353c41e4cd52414fcd72b08d0d8a7ec6 [2022-12-14 05:44:41,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-14 05:44:41,766 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-14 05:44:41,767 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-14 05:44:41,768 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-14 05:44:41,768 INFO L275 PluginConnector]: CDTParser initialized [2022-12-14 05:44:41,769 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:44,398 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-14 05:44:44,673 INFO L351 CDTParser]: Found 1 translation units. [2022-12-14 05:44:44,673 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:44,693 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/7228fab18/d63ffeb7ba304b4e9c80c8c56c7a9b00/FLAG6606dfdb2 [2022-12-14 05:44:44,708 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/data/7228fab18/d63ffeb7ba304b4e9c80c8c56c7a9b00 [2022-12-14 05:44:44,711 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-14 05:44:44,712 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-14 05:44:44,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-14 05:44:44,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-14 05:44:44,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-14 05:44:44,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:44" (1/1) ... [2022-12-14 05:44:44,719 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@191fba72 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:44, skipping insertion in model container [2022-12-14 05:44:44,719 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:44:44" (1/1) ... [2022-12-14 05:44:44,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-14 05:44:44,772 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-14 05:44:45,060 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:44:45,353 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:44:45,357 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:45,358 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:45,359 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:45,360 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:45,379 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:44:45,380 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:44:45,390 INFO L203 MainTranslator]: Completed pre-run [2022-12-14 05:44:45,403 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-14 05:44:45,457 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-14 05:44:45,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:45,459 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-14 05:44:45,461 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:45,462 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-14 05:44:45,467 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-14 05:44:45,468 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-14 05:44:45,596 INFO L208 MainTranslator]: Completed translation [2022-12-14 05:44:45,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45 WrapperNode [2022-12-14 05:44:45,596 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-14 05:44:45,597 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-14 05:44:45,597 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-14 05:44:45,597 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-14 05:44:45,602 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,618 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,632 INFO L138 Inliner]: procedures = 504, calls = 58, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 77 [2022-12-14 05:44:45,632 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-14 05:44:45,633 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-14 05:44:45,633 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-14 05:44:45,633 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-14 05:44:45,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,641 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,647 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,648 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,650 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,651 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,653 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-14 05:44:45,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-14 05:44:45,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-14 05:44:45,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-14 05:44:45,654 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (1/1) ... [2022-12-14 05:44:45,658 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-14 05:44:45,666 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 [2022-12-14 05:44:45,675 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-14 05:44:45,677 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-14 05:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-14 05:44:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-14 05:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-14 05:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-14 05:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-14 05:44:45,700 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-14 05:44:45,700 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-14 05:44:45,817 INFO L235 CfgBuilder]: Building ICFG [2022-12-14 05:44:45,818 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-14 05:44:45,935 INFO L276 CfgBuilder]: Performing block encoding [2022-12-14 05:44:45,940 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-14 05:44:45,940 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-14 05:44:45,942 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:45 BoogieIcfgContainer [2022-12-14 05:44:45,942 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-14 05:44:45,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-14 05:44:45,945 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-14 05:44:45,947 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-14 05:44:45,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:44:44" (1/3) ... [2022-12-14 05:44:45,948 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22d133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:45, skipping insertion in model container [2022-12-14 05:44:45,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:44:45" (2/3) ... [2022-12-14 05:44:45,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c22d133 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:44:45, skipping insertion in model container [2022-12-14 05:44:45,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:45" (3/3) ... [2022-12-14 05:44:45,950 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_postdec_15_bad.i [2022-12-14 05:44:45,966 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-14 05:44:45,966 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-14 05:44:46,006 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-14 05:44:46,013 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;@7eb5dced, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-14 05:44:46,013 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-14 05:44:46,017 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2022-12-14 05:44:46,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-14 05:44:46,024 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:46,025 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:46,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:44:46,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:46,030 INFO L85 PathProgramCache]: Analyzing trace with hash 56724319, now seen corresponding path program 1 times [2022-12-14 05:44:46,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:44:46,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1282036125] [2022-12-14 05:44:46,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:46,043 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 05:44:46,044 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:44:46,045 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-14 05:44:46,131 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-14 05:44:46,136 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-14 05:44:46,160 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 05:44:46,160 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-14 05:44:46,160 INFO L136 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2022-12-14 05:44:46,161 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1282036125] [2022-12-14 05:44:46,161 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1282036125] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-14 05:44:46,161 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-14 05:44:46,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-14 05:44:46,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335201578] [2022-12-14 05:44:46,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-14 05:44:46,166 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-14 05:44:46,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2022-12-14 05:44:46,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-14 05:44:46,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-14 05:44:46,189 INFO L87 Difference]: Start difference. First operand has 29 states, 21 states have (on average 1.380952380952381) internal successors, (29), 25 states have internal predecessors, (29), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 05:44:46,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-14 05:44:46,209 INFO L93 Difference]: Finished difference Result 48 states and 60 transitions. [2022-12-14 05:44:46,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-14 05:44:46,211 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 13 [2022-12-14 05:44:46,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-14 05:44:46,218 INFO L225 Difference]: With dead ends: 48 [2022-12-14 05:44:46,218 INFO L226 Difference]: Without dead ends: 15 [2022-12-14 05:44:46,220 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 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 05:44:46,223 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-14 05:44:46,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 55 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-14 05:44:46,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2022-12-14 05:44:46,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2022-12-14 05:44:46,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 12 states have (on average 1.1666666666666667) internal successors, (14), 12 states have internal predecessors, (14), 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 05:44:46,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2022-12-14 05:44:46,252 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 13 [2022-12-14 05:44:46,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-14 05:44:46,253 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2022-12-14 05:44:46,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 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 05:44:46,253 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2022-12-14 05:44:46,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-12-14 05:44:46,254 INFO L187 NwaCegarLoop]: Found error trace [2022-12-14 05:44:46,254 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-14 05:44:46,263 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,455 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,456 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-14 05:44:46,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-14 05:44:46,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1489408490, now seen corresponding path program 1 times [2022-12-14 05:44:46,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy WALRUS [2022-12-14 05:44:46,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1010329456] [2022-12-14 05:44:46,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-14 05:44:46,461 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 05:44:46,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/mathsat [2022-12-14 05:44:46,465 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,468 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:44:46,589 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-14 05:44:46,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-14 05:44:46,634 INFO L130 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2022-12-14 05:44:46,634 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-14 05:44:46,636 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-14 05:44:46,637 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-14 05:44:46,651 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,838 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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 05:44:46,848 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-14 05:44:46,860 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-14 05:44:46,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.12 05:44:46 BoogieIcfgContainer [2022-12-14 05:44:46,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-14 05:44:46,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-14 05:44:46,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-14 05:44:46,901 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-14 05:44:46,901 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:44:45" (3/4) ... [2022-12-14 05:44:46,903 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-14 05:44:46,942 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/bin/utaipan-gh47qXpMRh/witness.graphml [2022-12-14 05:44:46,942 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-14 05:44:46,943 INFO L158 Benchmark]: Toolchain (without parser) took 2230.88ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 36.0MB in the beginning and 42.4MB in the end (delta: -6.4MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,943 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory is still 27.5MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-14 05:44:46,944 INFO L158 Benchmark]: CACSL2BoogieTranslator took 883.25ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.7MB in the beginning and 41.5MB in the end (delta: -5.7MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,944 INFO L158 Benchmark]: Boogie Procedure Inliner took 35.39ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 38.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,945 INFO L158 Benchmark]: Boogie Preprocessor took 20.40ms. Allocated memory is still 73.4MB. Free memory was 38.1MB in the beginning and 36.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,945 INFO L158 Benchmark]: RCFGBuilder took 288.87ms. Allocated memory is still 73.4MB. Free memory was 36.3MB in the beginning and 39.6MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,945 INFO L158 Benchmark]: TraceAbstraction took 955.86ms. Allocated memory is still 73.4MB. Free memory was 38.9MB in the beginning and 44.8MB in the end (delta: -6.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,946 INFO L158 Benchmark]: Witness Printer took 41.45ms. Allocated memory is still 73.4MB. Free memory was 44.8MB in the beginning and 42.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-14 05:44:46,948 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 48.2MB. Free memory is still 27.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 883.25ms. Allocated memory was 60.8MB in the beginning and 73.4MB in the end (delta: 12.6MB). Free memory was 35.7MB in the beginning and 41.5MB in the end (delta: -5.7MB). Peak memory consumption was 24.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 35.39ms. Allocated memory is still 73.4MB. Free memory was 41.5MB in the beginning and 38.1MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 20.40ms. Allocated memory is still 73.4MB. Free memory was 38.1MB in the beginning and 36.3MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 288.87ms. Allocated memory is still 73.4MB. Free memory was 36.3MB in the beginning and 39.6MB in the end (delta: -3.3MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 955.86ms. Allocated memory is still 73.4MB. Free memory was 38.9MB in the beginning and 44.8MB in the end (delta: -6.0MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * Witness Printer took 41.45ms. Allocated memory is still 73.4MB. Free memory was 44.8MB in the beginning and 42.4MB in the end (delta: 2.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * 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: 1565]: 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] [L1578] 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) [L1578] 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] [L1579] CALL CWE191_Integer_Underflow__int_rand_postdec_15_bad() [L1550] int data; [L1551] data = 0 [L1554] case 6: [L1555] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1555] 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()=65536, rand()=0, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1563] case 7: [L1565] data-- VAL [data=-2147483648, 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: 1565]: 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, 29 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, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 55 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 25 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 30 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=29occurred 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, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 51 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 05:44:46,963 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_3f11ec24-75f9-4f1c-9e05-62593fa63585/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)