./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 38b53e6a Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a1b665e81b209ec1deb7c6e73a8211a3a042d9bef010adb8f6cd4b8cff4a8cda --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:40:55,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:40:55,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:40:55,596 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:40:55,596 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:40:55,597 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:40:55,601 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:40:55,618 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:40:55,620 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:40:55,627 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:40:55,629 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:40:55,630 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:40:55,630 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:40:55,631 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:40:55,632 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:40:55,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:40:55,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:40:55,635 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:40:55,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:40:55,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:40:55,639 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:40:55,641 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:40:55,642 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:40:55,643 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:40:55,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:40:55,646 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:40:55,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:40:55,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:40:55,648 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:40:55,649 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:40:55,649 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:40:55,652 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:40:55,653 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:40:55,654 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:40:55,655 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:40:55,655 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:40:55,656 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:40:55,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:40:55,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:40:55,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:40:55,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:40:55,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-11-25 15:40:55,701 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:40:55,702 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:40:55,702 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:40:55,702 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:40:55,703 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:40:55,703 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:40:55,704 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:40:55,704 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:40:55,704 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:40:55,704 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:40:55,704 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:40:55,705 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:40:55,706 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:40:55,706 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:40:55,706 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:40:55,706 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:40:55,712 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:40:55,713 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:40:55,713 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:40:55,713 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:40:55,714 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:40:55,714 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:40:55,714 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-11-25 15:40:55,715 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-11-25 15:40:55,715 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:40:55,716 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:40:55,716 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:40:55,716 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:40:55,716 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b665e81b209ec1deb7c6e73a8211a3a042d9bef010adb8f6cd4b8cff4a8cda [2022-11-25 15:40:56,038 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:40:56,078 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:40:56,081 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:40:56,082 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:40:56,083 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:40:56,084 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:40:59,033 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:40:59,447 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:40:59,447 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:40:59,480 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/d458eae73/33cd8ddbaa01488b8d036e103bfae7b7/FLAG81bba404a [2022-11-25 15:40:59,499 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/d458eae73/33cd8ddbaa01488b8d036e103bfae7b7 [2022-11-25 15:40:59,504 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:40:59,507 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:40:59,509 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:40:59,509 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:40:59,514 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:40:59,515 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:40:59" (1/1) ... [2022-11-25 15:40:59,516 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2af4f882 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:40:59, skipping insertion in model container [2022-11-25 15:40:59,516 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:40:59" (1/1) ... [2022-11-25 15:40:59,524 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:40:59,594 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:41:00,017 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:41:00,553 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:41:00,562 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:00,567 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:00,572 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:00,573 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:00,600 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:41:00,602 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:41:00,611 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:41:00,632 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:41:00,678 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:41:00,680 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:00,681 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:00,683 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:00,684 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:00,690 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:41:00,691 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:41:00,809 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:41:00,809 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00 WrapperNode [2022-11-25 15:41:00,809 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:41:00,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:41:00,811 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:41:00,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:41:00,819 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,861 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,918 INFO L138 Inliner]: procedures = 501, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-25 15:41:00,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:41:00,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:41:00,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:41:00,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:41:00,932 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,932 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,935 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,935 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,941 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,943 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,944 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,948 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:41:00,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:41:00,949 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:41:00,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:41:00,950 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (1/1) ... [2022-11-25 15:41:00,958 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:41:00,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:41:00,985 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:41:01,015 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:41:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:41:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:41:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:41:01,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:41:01,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:41:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:41:01,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-11-25 15:41:01,283 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:41:01,285 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:41:01,411 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:41:01,420 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:41:01,420 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:41:01,422 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:01 BoogieIcfgContainer [2022-11-25 15:41:01,422 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:41:01,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:41:01,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:41:01,429 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:41:01,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:40:59" (1/3) ... [2022-11-25 15:41:01,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d276275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:41:01, skipping insertion in model container [2022-11-25 15:41:01,431 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:00" (2/3) ... [2022-11-25 15:41:01,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4d276275 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:41:01, skipping insertion in model container [2022-11-25 15:41:01,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:01" (3/3) ... [2022-11-25 15:41:01,437 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:41:01,457 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:41:01,457 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:41:01,521 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:41:01,528 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=PETRI_NET, 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;@58fec55e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:41:01,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:41:01,533 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:41:01,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:41:01,574 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:41:01,575 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:41:01,575 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:41:01,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:41:01,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-11-25 15:41:01,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-11-25 15:41:01,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813915654] [2022-11-25 15:41:01,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:41:01,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-11-25 15:41:01,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:41:01,826 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:41:01,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:41:01,945 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-11-25 15:41:01,947 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:41:01,948 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:41:01,950 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:41:01,951 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-11-25 15:41:01,956 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 15:41:01,960 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:41:01,997 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:41:01 BoogieIcfgContainer [2022-11-25 15:41:01,997 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:41:01,999 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:41:01,999 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:41:02,000 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:41:02,000 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:01" (3/4) ... [2022-11-25 15:41:02,004 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-11-25 15:41:02,004 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:41:02,006 INFO L158 Benchmark]: Toolchain (without parser) took 2498.97ms. Allocated memory is still 163.6MB. Free memory was 128.9MB in the beginning and 116.6MB in the end (delta: 12.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2022-11-25 15:41:02,006 INFO L158 Benchmark]: CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:02,008 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1300.63ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 80.4MB in the end (delta: 47.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. [2022-11-25 15:41:02,009 INFO L158 Benchmark]: Boogie Procedure Inliner took 109.57ms. Allocated memory is still 163.6MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-11-25 15:41:02,010 INFO L158 Benchmark]: Boogie Preprocessor took 27.97ms. Allocated memory is still 163.6MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:02,016 INFO L158 Benchmark]: RCFGBuilder took 473.09ms. Allocated memory is still 163.6MB. Free memory was 75.8MB in the beginning and 62.3MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 15:41:02,016 INFO L158 Benchmark]: TraceAbstraction took 571.47ms. Allocated memory is still 163.6MB. Free memory was 61.5MB in the beginning and 117.6MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:02,017 INFO L158 Benchmark]: Witness Printer took 5.27ms. Allocated memory is still 163.6MB. Free memory was 117.6MB in the beginning and 116.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:02,019 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30ms. Allocated memory is still 123.7MB. Free memory is still 92.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1300.63ms. Allocated memory is still 163.6MB. Free memory was 128.1MB in the beginning and 80.4MB in the end (delta: 47.7MB). Peak memory consumption was 46.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 109.57ms. Allocated memory is still 163.6MB. Free memory was 80.4MB in the beginning and 77.0MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 27.97ms. Allocated memory is still 163.6MB. Free memory was 77.0MB in the beginning and 75.8MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 473.09ms. Allocated memory is still 163.6MB. Free memory was 75.8MB in the beginning and 62.3MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 571.47ms. Allocated memory is still 163.6MB. Free memory was 61.5MB in the beginning and 117.6MB in the end (delta: -56.1MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.27ms. Allocated memory is still 163.6MB. Free memory was 117.6MB in the beginning and 116.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 1551]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: overapproximation of bitwiseXor at line 1560, overapproximation of bitwiseAnd at line 1560. 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); VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1] [L1566] 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) [L1566] RET printLine("Calling bad()...") VAL [\old(argc)=2147483649, argc=2147483649, argv={2147483648:2147483650}, argv={2147483648:2147483650}, 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 CWE191_Integer_Underflow__int_rand_sub_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [={-1:0}, 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()=65535, rand()=1, rand()=0, rand()=2147483647, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL funcPtr(data) [L1551] data - 1 VAL [\old(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: 1551]: 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: 0.5s, 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=23occurred 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, 11 NumberOfCodeBlocks, 11 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 [2022-11-25 15:41:02,057 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/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_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash a1b665e81b209ec1deb7c6e73a8211a3a042d9bef010adb8f6cd4b8cff4a8cda --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-38b53e6 [2022-11-25 15:41:04,516 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-11-25 15:41:04,518 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-11-25 15:41:04,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-11-25 15:41:04,575 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-11-25 15:41:04,579 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-11-25 15:41:04,582 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-11-25 15:41:04,585 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-11-25 15:41:04,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-11-25 15:41:04,594 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-11-25 15:41:04,595 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-11-25 15:41:04,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-11-25 15:41:04,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-11-25 15:41:04,601 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-11-25 15:41:04,602 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-11-25 15:41:04,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-11-25 15:41:04,610 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-11-25 15:41:04,611 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-11-25 15:41:04,613 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-11-25 15:41:04,617 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-11-25 15:41:04,619 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-11-25 15:41:04,623 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-11-25 15:41:04,625 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-11-25 15:41:04,626 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-11-25 15:41:04,630 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-11-25 15:41:04,635 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-11-25 15:41:04,635 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-11-25 15:41:04,637 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-11-25 15:41:04,638 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-11-25 15:41:04,639 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-11-25 15:41:04,640 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-11-25 15:41:04,641 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-11-25 15:41:04,642 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-11-25 15:41:04,644 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-11-25 15:41:04,645 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-11-25 15:41:04,645 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-11-25 15:41:04,646 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-11-25 15:41:04,646 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-11-25 15:41:04,646 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-11-25 15:41:04,647 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-11-25 15:41:04,648 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-11-25 15:41:04,649 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-11-25 15:41:04,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-11-25 15:41:04,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-11-25 15:41:04,691 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-11-25 15:41:04,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-11-25 15:41:04,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-11-25 15:41:04,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-11-25 15:41:04,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-11-25 15:41:04,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-11-25 15:41:04,694 INFO L138 SettingsManager]: * Use SBE=true [2022-11-25 15:41:04,694 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-11-25 15:41:04,695 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-11-25 15:41:04,696 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-11-25 15:41:04,696 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-11-25 15:41:04,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-11-25 15:41:04,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-11-25 15:41:04,697 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-11-25 15:41:04,697 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-11-25 15:41:04,697 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-11-25 15:41:04,697 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-11-25 15:41:04,697 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-11-25 15:41:04,698 INFO L138 SettingsManager]: * Use constant arrays=true [2022-11-25 15:41:04,698 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-11-25 15:41:04,698 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-11-25 15:41:04,698 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-11-25 15:41:04,699 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-11-25 15:41:04,699 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:41:04,699 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-11-25 15:41:04,699 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-11-25 15:41:04,700 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-11-25 15:41:04,700 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-11-25 15:41:04,700 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-11-25 15:41:04,700 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-11-25 15:41:04,701 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-11-25 15:41:04,701 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-11-25 15:41:04,701 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-11-25 15:41:04,701 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-11-25 15:41:04,701 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a1b665e81b209ec1deb7c6e73a8211a3a042d9bef010adb8f6cd4b8cff4a8cda [2022-11-25 15:41:05,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-11-25 15:41:05,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-11-25 15:41:05,118 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-11-25 15:41:05,120 INFO L271 PluginConnector]: Initializing CDTParser... [2022-11-25 15:41:05,120 INFO L275 PluginConnector]: CDTParser initialized [2022-11-25 15:41:05,121 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:41:08,179 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-11-25 15:41:08,550 INFO L351 CDTParser]: Found 1 translation units. [2022-11-25 15:41:08,550 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:41:08,575 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/cdd4c4ae5/aa56c72e40ef412abe5968f9ca0f3460/FLAG9ce05d8ef [2022-11-25 15:41:08,597 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/data/cdd4c4ae5/aa56c72e40ef412abe5968f9ca0f3460 [2022-11-25 15:41:08,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-11-25 15:41:08,601 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-11-25 15:41:08,602 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-11-25 15:41:08,602 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-11-25 15:41:08,613 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-11-25 15:41:08,617 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:41:08" (1/1) ... [2022-11-25 15:41:08,618 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@615c7219 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:08, skipping insertion in model container [2022-11-25 15:41:08,618 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 03:41:08" (1/1) ... [2022-11-25 15:41:08,626 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-11-25 15:41:08,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-11-25 15:41:09,064 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:41:09,541 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:41:09,547 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:09,551 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:09,559 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:09,559 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:09,606 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:41:09,609 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:41:09,631 INFO L203 MainTranslator]: Completed pre-run [2022-11-25 15:41:09,663 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-11-25 15:41:09,751 WARN L623 FunctionHandler]: Unknown extern function puts [2022-11-25 15:41:09,753 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:09,754 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-11-25 15:41:09,756 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:09,757 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-11-25 15:41:09,762 WARN L623 FunctionHandler]: Unknown extern function time [2022-11-25 15:41:09,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-11-25 15:41:09,926 INFO L208 MainTranslator]: Completed translation [2022-11-25 15:41:09,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09 WrapperNode [2022-11-25 15:41:09,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-11-25 15:41:09,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-11-25 15:41:09,928 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-11-25 15:41:09,928 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-11-25 15:41:09,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:09,958 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:09,983 INFO L138 Inliner]: procedures = 506, calls = 56, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 60 [2022-11-25 15:41:09,983 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-11-25 15:41:09,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-11-25 15:41:09,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-11-25 15:41:09,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-11-25 15:41:10,008 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,029 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,038 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,041 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,042 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,057 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-11-25 15:41:10,058 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-11-25 15:41:10,058 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-11-25 15:41:10,058 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-11-25 15:41:10,059 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (1/1) ... [2022-11-25 15:41:10,077 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-11-25 15:41:10,092 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 [2022-11-25 15:41:10,112 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-11-25 15:41:10,146 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-11-25 15:41:10,166 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-11-25 15:41:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-11-25 15:41:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-11-25 15:41:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-11-25 15:41:10,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-11-25 15:41:10,167 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-11-25 15:41:10,168 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-11-25 15:41:10,325 INFO L235 CfgBuilder]: Building ICFG [2022-11-25 15:41:10,327 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-11-25 15:41:10,453 INFO L276 CfgBuilder]: Performing block encoding [2022-11-25 15:41:10,458 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-11-25 15:41:10,459 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-11-25 15:41:10,460 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:10 BoogieIcfgContainer [2022-11-25 15:41:10,461 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-11-25 15:41:10,463 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-11-25 15:41:10,463 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-11-25 15:41:10,466 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-11-25 15:41:10,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 03:41:08" (1/3) ... [2022-11-25 15:41:10,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3977044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:41:10, skipping insertion in model container [2022-11-25 15:41:10,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 03:41:09" (2/3) ... [2022-11-25 15:41:10,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3977044f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 03:41:10, skipping insertion in model container [2022-11-25 15:41:10,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:10" (3/3) ... [2022-11-25 15:41:10,470 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_sub_44_bad.i [2022-11-25 15:41:10,488 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-11-25 15:41:10,488 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-11-25 15:41:10,534 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-11-25 15:41:10,541 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=PETRI_NET, 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;@750f9fc9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-11-25 15:41:10,550 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-11-25 15:41:10,555 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 19 states have internal predecessors, (21), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-11-25 15:41:10,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-11-25 15:41:10,577 INFO L187 NwaCegarLoop]: Found error trace [2022-11-25 15:41:10,577 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-11-25 15:41:10,578 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-11-25 15:41:10,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-11-25 15:41:10,584 INFO L85 PathProgramCache]: Analyzing trace with hash 1415283626, now seen corresponding path program 1 times [2022-11-25 15:41:10,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-11-25 15:41:10,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1209006942] [2022-11-25 15:41:10,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-11-25 15:41:10,599 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:41:10,599 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/mathsat [2022-11-25 15:41:10,605 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-11-25 15:41:10,616 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-11-25 15:41:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:41:10,802 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-11-25 15:41:10,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-11-25 15:41:10,910 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-11-25 15:41:10,912 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-11-25 15:41:10,914 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-11-25 15:41:10,915 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-11-25 15:41:10,937 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/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 [2022-11-25 15:41:11,117 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2022-11-25 15:41:11,121 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2022-11-25 15:41:11,130 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-11-25 15:41:11,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 03:41:11 BoogieIcfgContainer [2022-11-25 15:41:11,163 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-11-25 15:41:11,164 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-11-25 15:41:11,167 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-11-25 15:41:11,167 INFO L275 PluginConnector]: Witness Printer initialized [2022-11-25 15:41:11,168 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 03:41:10" (3/4) ... [2022-11-25 15:41:11,171 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-11-25 15:41:11,235 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/witness.graphml [2022-11-25 15:41:11,235 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-11-25 15:41:11,237 INFO L158 Benchmark]: Toolchain (without parser) took 2635.66ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 32.3MB in the beginning and 48.5MB in the end (delta: -16.1MB). Peak memory consumption was 4.1MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,237 INFO L158 Benchmark]: CDTParser took 0.29ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:11,238 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1325.12ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 40.4MB in the end (delta: -8.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,239 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.71ms. Allocated memory is still 86.0MB. Free memory was 40.4MB in the beginning and 37.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,239 INFO L158 Benchmark]: Boogie Preprocessor took 73.52ms. Allocated memory is still 86.0MB. Free memory was 37.1MB in the beginning and 58.6MB in the end (delta: -21.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,240 INFO L158 Benchmark]: RCFGBuilder took 402.69ms. Allocated memory is still 86.0MB. Free memory was 58.6MB in the beginning and 45.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,241 INFO L158 Benchmark]: TraceAbstraction took 700.65ms. Allocated memory is still 86.0MB. Free memory was 44.3MB in the beginning and 50.6MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. [2022-11-25 15:41:11,241 INFO L158 Benchmark]: Witness Printer took 71.12ms. Allocated memory is still 86.0MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-11-25 15:41:11,244 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29ms. Allocated memory is still 65.0MB. Free memory was 42.6MB in the beginning and 42.6MB in the end (delta: 49.1kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1325.12ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 32.2MB in the beginning and 40.4MB in the end (delta: -8.2MB). Peak memory consumption was 17.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.71ms. Allocated memory is still 86.0MB. Free memory was 40.4MB in the beginning and 37.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 73.52ms. Allocated memory is still 86.0MB. Free memory was 37.1MB in the beginning and 58.6MB in the end (delta: -21.4MB). Peak memory consumption was 3.9MB. Max. memory is 16.1GB. * RCFGBuilder took 402.69ms. Allocated memory is still 86.0MB. Free memory was 58.6MB in the beginning and 45.2MB in the end (delta: 13.3MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 700.65ms. Allocated memory is still 86.0MB. Free memory was 44.3MB in the beginning and 50.6MB in the end (delta: -6.3MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 71.12ms. Allocated memory is still 86.0MB. Free memory was 50.6MB in the beginning and 48.5MB in the end (delta: 2.2MB). 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: 1551]: 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] [L1566] 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) [L1566] 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] [L1567] CALL CWE191_Integer_Underflow__int_rand_sub_44_bad() [L1557] int data; [L1558] void (*funcPtr) (int) = badSink; [L1559] data = 0 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 [L1560] EXPR rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1 VAL [={-1:0}, 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()=2147483647, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648] [L1560] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1561] CALL funcPtr(data) [L1551] data - 1 VAL [\old(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: 1551]: 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: 0.6s, 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=23occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 11 NumberOfCodeBlocks, 11 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 proved your program to be incorrect! [2022-11-25 15:41:11,272 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c6645304-d071-4731-8a51-1a37eeba67e8/bin/uautomizer-ZsLfNo2U6R/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 Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW)