./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_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_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8 --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 52b77f128d006585c4f7a83155b01083f05485a71c2322329b60fddad22988bd --- 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 [2022-12-13 17:18:27,735 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:18:27,736 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:18:27,751 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:18:27,751 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:18:27,752 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:18:27,753 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:18:27,754 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:18:27,754 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:18:27,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:18:27,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:18:27,756 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:18:27,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:18:27,757 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:18:27,758 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:18:27,759 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:18:27,759 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:18:27,760 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:18:27,761 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:18:27,762 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:18:27,763 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:18:27,764 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:18:27,765 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:18:27,765 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:18:27,767 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:18:27,767 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:18:27,768 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:18:27,768 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:18:27,768 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:18:27,769 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:18:27,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:18:27,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:18:27,770 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:18:27,771 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:18:27,771 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:18:27,771 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:18:27,772 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:18:27,772 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:18:27,772 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:18:27,773 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:18:27,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:18:27,774 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Default.epf [2022-12-13 17:18:27,795 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:18:27,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:18:27,796 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:18:27,796 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:18:27,797 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:18:27,797 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:18:27,803 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:18:27,803 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:18:27,803 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:18:27,804 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:18:27,804 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:18:27,804 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 17:18:27,804 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:18:27,804 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:18:27,805 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:18:27,805 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:18:27,805 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:18:27,805 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:18:27,806 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:18:27,806 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:18:27,806 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:18:27,806 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:18:27,806 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:18:27,806 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:18:27,807 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:18:27,807 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:18:27,807 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:18:27,807 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 17:18:27,807 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 17:18:27,808 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:18:27,808 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:18:27,808 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:18:27,808 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:18:27,808 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:18:27,808 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_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52b77f128d006585c4f7a83155b01083f05485a71c2322329b60fddad22988bd [2022-12-13 17:18:27,979 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:18:27,999 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:18:28,001 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:18:28,002 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:18:28,002 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:18:28,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:30,633 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:18:30,878 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:18:30,879 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:30,892 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/1e516f8e1/bc69b71624e5473bb8dbb857a469c60f/FLAGf9d0c7421 [2022-12-13 17:18:30,902 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/1e516f8e1/bc69b71624e5473bb8dbb857a469c60f [2022-12-13 17:18:30,904 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:18:30,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:18:30,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:18:30,906 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:18:30,909 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:18:30,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:30" (1/1) ... [2022-12-13 17:18:30,910 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@257003eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:30, skipping insertion in model container [2022-12-13 17:18:30,911 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:30" (1/1) ... [2022-12-13 17:18:30,916 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:18:30,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:18:31,181 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:18:31,453 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:18:31,457 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:31,458 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:31,460 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:31,461 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:31,478 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:18:31,479 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:18:31,486 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:18:31,499 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:18:31,529 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:18:31,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:31,531 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:31,533 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:31,534 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:31,537 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:18:31,538 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:18:31,653 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:18:31,654 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31 WrapperNode [2022-12-13 17:18:31,654 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:18:31,654 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:18:31,655 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:18:31,655 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:18:31,660 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,676 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,691 INFO L138 Inliner]: procedures = 499, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-12-13 17:18:31,691 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:18:31,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:18:31,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:18:31,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:18:31,698 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,701 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,704 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,705 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,706 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,707 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,709 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:18:31,709 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:18:31,710 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:18:31,710 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:18:31,710 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (1/1) ... [2022-12-13 17:18:31,715 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:18:31,723 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:18:31,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:18:31,735 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:18:31,758 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:18:31,759 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:18:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:18:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:18:31,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:18:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:18:31,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 17:18:31,863 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:18:31,865 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:18:31,981 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:18:31,987 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:18:31,987 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:18:31,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:31 BoogieIcfgContainer [2022-12-13 17:18:31,989 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:18:31,991 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:18:31,991 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:18:31,994 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:18:31,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:18:30" (1/3) ... [2022-12-13 17:18:31,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9e8d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:18:31, skipping insertion in model container [2022-12-13 17:18:31,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:31" (2/3) ... [2022-12-13 17:18:31,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e9e8d8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:18:31, skipping insertion in model container [2022-12-13 17:18:31,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:31" (3/3) ... [2022-12-13 17:18:31,997 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:32,015 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:18:32,015 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 17:18:32,054 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:18:32,059 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;@28b60f46, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:18:32,059 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 17:18:32,065 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:18:32,071 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 17:18:32,071 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:18:32,071 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:18:32,072 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:18:32,076 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:18:32,076 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 17:18:32,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:18:32,083 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050065660] [2022-12-13 17:18:32,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:18:32,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:18:32,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:18:32,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-12-13 17:18:32,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:18:32,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:18:32,253 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 17:18:32,254 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050065660] [2022-12-13 17:18:32,254 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2050065660] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:18:32,254 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:18:32,254 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-13 17:18:32,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637087068] [2022-12-13 17:18:32,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:18:32,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:18:32,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 17:18:32,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:18:32,280 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:18:32,281 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:18:32,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:18:32,301 INFO L93 Difference]: Finished difference Result 39 states and 44 transitions. [2022-12-13 17:18:32,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:18:32,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 17:18:32,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:18:32,307 INFO L225 Difference]: With dead ends: 39 [2022-12-13 17:18:32,307 INFO L226 Difference]: Without dead ends: 16 [2022-12-13 17:18:32,309 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:18:32,311 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 21 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:18:32,312 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 23 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:18:32,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-12-13 17:18:32,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-12-13 17:18:32,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.25) internal successors, (15), 13 states have internal predecessors, (15), 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) [2022-12-13 17:18:32,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2022-12-13 17:18:32,335 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 11 [2022-12-13 17:18:32,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:18:32,335 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2022-12-13 17:18:32,335 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:18:32,335 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2022-12-13 17:18:32,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 17:18:32,336 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:18:32,336 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:18:32,336 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 17:18:32,336 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:18:32,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:18:32,337 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 17:18:32,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 17:18:32,337 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1084448092] [2022-12-13 17:18:32,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:18:32,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 17:18:32,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:18:32,368 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:18:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:18:32,404 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 17:18:32,404 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:18:32,406 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 17:18:32,407 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 17:18:32,407 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 17:18:32,410 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:18:32,413 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:18:32,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:18:32 BoogieIcfgContainer [2022-12-13 17:18:32,430 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:18:32,431 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:18:32,431 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:18:32,431 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:18:32,431 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:31" (3/4) ... [2022-12-13 17:18:32,434 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 17:18:32,434 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:18:32,434 INFO L158 Benchmark]: Toolchain (without parser) took 1528.66ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 77.3MB in the beginning and 79.6MB in the end (delta: -2.4MB). Peak memory consumption was 24.3MB. Max. memory is 16.1GB. [2022-12-13 17:18:32,434 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:18:32,435 INFO L158 Benchmark]: CACSL2BoogieTranslator took 747.65ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 76.9MB in the beginning and 83.5MB in the end (delta: -6.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2022-12-13 17:18:32,435 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.92ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:18:32,436 INFO L158 Benchmark]: Boogie Preprocessor took 17.24ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:18:32,436 INFO L158 Benchmark]: RCFGBuilder took 279.42ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 65.1MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 17:18:32,436 INFO L158 Benchmark]: TraceAbstraction took 439.16ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 80.7MB in the end (delta: -16.2MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:18:32,436 INFO L158 Benchmark]: Witness Printer took 3.08ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 79.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:18:32,438 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 117.4MB. Free memory is still 88.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 747.65ms. Allocated memory was 117.4MB in the beginning and 142.6MB in the end (delta: 25.2MB). Free memory was 76.9MB in the beginning and 83.5MB in the end (delta: -6.5MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 36.92ms. Allocated memory is still 142.6MB. Free memory was 82.8MB in the beginning and 80.0MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.24ms. Allocated memory is still 142.6MB. Free memory was 80.0MB in the beginning and 78.6MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 279.42ms. Allocated memory is still 142.6MB. Free memory was 78.6MB in the beginning and 65.1MB in the end (delta: 13.5MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 439.16ms. Allocated memory is still 142.6MB. Free memory was 64.4MB in the beginning and 80.7MB in the end (delta: -16.2MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 3.08ms. Allocated memory is still 142.6MB. Free memory was 80.7MB in the beginning and 79.6MB 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: 1560]: 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); [L1548] static int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1569] RET printLine("Calling bad()...") VAL [\old(argc)=2147483650, argc=2147483650, argv={2147483649:2147483651}, argv={2147483649:2147483651}, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1570] CALL CWE191_Integer_Underflow__int_rand_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [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()=5, rand()=0, rand()=4, rand()=1, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=2147483648, staticFive=5] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] COND TRUE staticFive==5 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1560] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1560]: 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: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 21 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 21 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 23 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 18 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2022-12-13 17:18:32,456 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8 --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 52b77f128d006585c4f7a83155b01083f05485a71c2322329b60fddad22988bd --- 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 [2022-12-13 17:18:34,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 17:18:34,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 17:18:34,041 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 17:18:34,041 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 17:18:34,042 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 17:18:34,043 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 17:18:34,045 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 17:18:34,047 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 17:18:34,048 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 17:18:34,049 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 17:18:34,050 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 17:18:34,050 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 17:18:34,051 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 17:18:34,052 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 17:18:34,053 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 17:18:34,054 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 17:18:34,055 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 17:18:34,057 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 17:18:34,058 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 17:18:34,060 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 17:18:34,061 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 17:18:34,062 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 17:18:34,063 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 17:18:34,067 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 17:18:34,067 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 17:18:34,068 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 17:18:34,069 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 17:18:34,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 17:18:34,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 17:18:34,070 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 17:18:34,071 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 17:18:34,072 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 17:18:34,073 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 17:18:34,074 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 17:18:34,074 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 17:18:34,075 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 17:18:34,075 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 17:18:34,075 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 17:18:34,076 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 17:18:34,077 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 17:18:34,078 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/config/svcomp-Overflow-64bit-Automizer_Bitvector.epf [2022-12-13 17:18:34,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 17:18:34,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 17:18:34,101 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 17:18:34,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 17:18:34,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 17:18:34,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 17:18:34,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 17:18:34,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 17:18:34,103 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 17:18:34,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 17:18:34,103 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 17:18:34,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 17:18:34,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 17:18:34,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 17:18:34,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 17:18:34,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 17:18:34,104 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-12-13 17:18:34,105 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-12-13 17:18:34,105 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-12-13 17:18:34,105 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 17:18:34,105 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 17:18:34,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 17:18:34,106 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 17:18:34,106 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 17:18:34,106 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 17:18:34,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:18:34,106 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 17:18:34,107 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 17:18:34,107 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 17:18:34,107 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-12-13 17:18:34,107 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * Logic for external solver=AUFBV [2022-12-13 17:18:34,108 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 17:18:34,109 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_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 52b77f128d006585c4f7a83155b01083f05485a71c2322329b60fddad22988bd [2022-12-13 17:18:34,346 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 17:18:34,360 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 17:18:34,362 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 17:18:34,363 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 17:18:34,363 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 17:18:34,364 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:36,907 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 17:18:37,129 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 17:18:37,129 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/sv-benchmarks/c/Juliet_Test/CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:37,142 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/7a5265490/3eefccfaba5343c08978de3a278430e8/FLAG9d5946631 [2022-12-13 17:18:37,476 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/data/7a5265490/3eefccfaba5343c08978de3a278430e8 [2022-12-13 17:18:37,480 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 17:18:37,483 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 17:18:37,485 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 17:18:37,485 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 17:18:37,491 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 17:18:37,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:37" (1/1) ... [2022-12-13 17:18:37,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f96d6e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:37, skipping insertion in model container [2022-12-13 17:18:37,495 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 05:18:37" (1/1) ... [2022-12-13 17:18:37,504 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 17:18:37,555 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 17:18:37,810 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:18:38,117 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:18:38,123 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:38,124 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:38,126 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:38,127 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:38,149 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:18:38,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:18:38,161 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 17:18:38,174 WARN L611 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-12-13 17:18:38,210 WARN L623 FunctionHandler]: Unknown extern function puts [2022-12-13 17:18:38,211 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:38,211 WARN L623 FunctionHandler]: Unknown extern function __ctype_b_loc [2022-12-13 17:18:38,213 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:38,213 WARN L623 FunctionHandler]: Unknown extern function iswxdigit [2022-12-13 17:18:38,216 WARN L623 FunctionHandler]: Unknown extern function time [2022-12-13 17:18:38,217 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 17:18:38,344 INFO L208 MainTranslator]: Completed translation [2022-12-13 17:18:38,345 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38 WrapperNode [2022-12-13 17:18:38,345 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 17:18:38,346 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 17:18:38,346 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 17:18:38,346 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 17:18:38,353 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,374 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,393 INFO L138 Inliner]: procedures = 504, calls = 54, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 60 [2022-12-13 17:18:38,393 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 17:18:38,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 17:18:38,394 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 17:18:38,394 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 17:18:38,401 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,402 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,405 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,405 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,413 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,415 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,417 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,418 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,422 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 17:18:38,422 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 17:18:38,423 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 17:18:38,423 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 17:18:38,423 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (1/1) ... [2022-12-13 17:18:38,429 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 17:18:38,438 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 17:18:38,447 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 17:18:38,450 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 17:18:38,477 INFO L130 BoogieDeclarations]: Found specification of procedure printLine [2022-12-13 17:18:38,477 INFO L138 BoogieDeclarations]: Found implementation of procedure printLine [2022-12-13 17:18:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-12-13 17:18:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 17:18:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 17:18:38,478 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 17:18:38,478 INFO L130 BoogieDeclarations]: Found specification of procedure time [2022-12-13 17:18:38,595 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 17:18:38,596 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 17:18:38,700 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 17:18:38,706 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 17:18:38,706 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-12-13 17:18:38,708 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:38 BoogieIcfgContainer [2022-12-13 17:18:38,709 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 17:18:38,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 17:18:38,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 17:18:38,714 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 17:18:38,714 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 05:18:37" (1/3) ... [2022-12-13 17:18:38,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c58fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:18:38, skipping insertion in model container [2022-12-13 17:18:38,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 05:18:38" (2/3) ... [2022-12-13 17:18:38,715 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46c58fa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 05:18:38, skipping insertion in model container [2022-12-13 17:18:38,716 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:38" (3/3) ... [2022-12-13 17:18:38,717 INFO L112 eAbstractionObserver]: Analyzing ICFG CWE191_Integer_Underflow__int_rand_predec_07_bad.i [2022-12-13 17:18:38,734 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 17:18:38,734 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-12-13 17:18:38,776 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 17:18:38,782 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;@63752bb9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 17:18:38,782 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-12-13 17:18:38,786 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-12-13 17:18:38,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-12-13 17:18:38,793 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:18:38,793 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:18:38,794 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:18:38,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:18:38,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1654475935, now seen corresponding path program 1 times [2022-12-13 17:18:38,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:18:38,810 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1726482195] [2022-12-13 17:18:38,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:18:38,811 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 [2022-12-13 17:18:38,811 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:18:38,812 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:18:38,813 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:38,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 17:18:38,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 2 conjunts are in the unsatisfiable core [2022-12-13 17:18:38,914 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-12-13 17:18:38,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 17:18:38,963 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-12-13 17:18:38,964 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-12-13 17:18:38,964 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1726482195] [2022-12-13 17:18:38,964 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1726482195] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 17:18:38,965 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 17:18:38,965 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 17:18:38,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [515698409] [2022-12-13 17:18:38,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 17:18:38,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 17:18:38,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-12-13 17:18:38,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 17:18:39,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:18:39,002 INFO L87 Difference]: Start difference. First operand has 23 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 19 states have internal predecessors, (23), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:18:39,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-12-13 17:18:39,029 INFO L93 Difference]: Finished difference Result 38 states and 44 transitions. [2022-12-13 17:18:39,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 17:18:39,032 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-12-13 17:18:39,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-12-13 17:18:39,036 INFO L225 Difference]: With dead ends: 38 [2022-12-13 17:18:39,036 INFO L226 Difference]: Without dead ends: 14 [2022-12-13 17:18:39,038 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 17:18:39,040 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 16 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 22 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-12-13 17:18:39,041 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 22 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-12-13 17:18:39,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-12-13 17:18:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-12-13 17:18:39,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 11 states have (on average 1.1818181818181819) internal successors, (13), 11 states have internal predecessors, (13), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:18:39,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2022-12-13 17:18:39,064 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2022-12-13 17:18:39,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-12-13 17:18:39,065 INFO L495 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2022-12-13 17:18:39,065 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.0) internal successors, (9), 2 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-12-13 17:18:39,065 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2022-12-13 17:18:39,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-12-13 17:18:39,065 INFO L187 NwaCegarLoop]: Found error trace [2022-12-13 17:18:39,065 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 17:18:39,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:39,266 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:39,268 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-12-13 17:18:39,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 17:18:39,269 INFO L85 PathProgramCache]: Analyzing trace with hash 804858586, now seen corresponding path program 1 times [2022-12-13 17:18:39,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-12-13 17:18:39,272 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [277666762] [2022-12-13 17:18:39,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 17:18:39,273 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 [2022-12-13 17:18:39,274 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/mathsat [2022-12-13 17:18:39,277 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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) [2022-12-13 17:18:39,280 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:39,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:18:39,478 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 17:18:39,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 17:18:39,583 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2022-12-13 17:18:39,584 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 17:18:39,586 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 2 remaining) [2022-12-13 17:18:39,589 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 2 remaining) [2022-12-13 17:18:39,608 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:39,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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 [2022-12-13 17:18:39,801 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2022-12-13 17:18:39,812 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 17:18:39,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 05:18:39 BoogieIcfgContainer [2022-12-13 17:18:39,851 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 17:18:39,851 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 17:18:39,851 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 17:18:39,852 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 17:18:39,852 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 05:18:38" (3/4) ... [2022-12-13 17:18:39,854 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 17:18:39,889 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 17:18:39,889 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 17:18:39,890 INFO L158 Benchmark]: Toolchain (without parser) took 2407.81ms. Allocated memory is still 69.2MB. Free memory was 38.0MB in the beginning and 24.5MB in the end (delta: 13.6MB). Peak memory consumption was 12.1MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,890 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 17:18:39,891 INFO L158 Benchmark]: CACSL2BoogieTranslator took 860.68ms. Allocated memory is still 69.2MB. Free memory was 37.9MB in the beginning and 37.1MB in the end (delta: 755.0kB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,891 INFO L158 Benchmark]: Boogie Procedure Inliner took 46.94ms. Allocated memory is still 69.2MB. Free memory was 37.1MB in the beginning and 34.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,892 INFO L158 Benchmark]: Boogie Preprocessor took 28.35ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 31.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,892 INFO L158 Benchmark]: RCFGBuilder took 286.34ms. Allocated memory is still 69.2MB. Free memory was 31.9MB in the beginning and 35.5MB in the end (delta: -3.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,892 INFO L158 Benchmark]: TraceAbstraction took 1139.83ms. Allocated memory is still 69.2MB. Free memory was 34.8MB in the beginning and 26.9MB in the end (delta: 7.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,893 INFO L158 Benchmark]: Witness Printer took 38.15ms. Allocated memory is still 69.2MB. Free memory was 26.9MB in the beginning and 24.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2022-12-13 17:18:39,895 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 50.3MB. Free memory is still 28.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 860.68ms. Allocated memory is still 69.2MB. Free memory was 37.9MB in the beginning and 37.1MB in the end (delta: 755.0kB). Peak memory consumption was 18.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 46.94ms. Allocated memory is still 69.2MB. Free memory was 37.1MB in the beginning and 34.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.35ms. Allocated memory is still 69.2MB. Free memory was 34.0MB in the beginning and 31.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 286.34ms. Allocated memory is still 69.2MB. Free memory was 31.9MB in the beginning and 35.5MB in the end (delta: -3.6MB). Peak memory consumption was 10.0MB. Max. memory is 16.1GB. * TraceAbstraction took 1139.83ms. Allocated memory is still 69.2MB. Free memory was 34.8MB in the beginning and 26.9MB in the end (delta: 7.9MB). Peak memory consumption was 5.1MB. Max. memory is 16.1GB. * Witness Printer took 38.15ms. Allocated memory is still 69.2MB. Free memory was 26.9MB in the beginning and 24.5MB in the end (delta: 2.5MB). Peak memory consumption was 4.2MB. 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: 1560]: 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); [L1548] static int staticFive = 5; VAL [GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1569] 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}, staticFive=5] [L1414] COND TRUE line != ((void *)0) [L1569] 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, staticFive=5] [L1570] CALL CWE191_Integer_Underflow__int_rand_predec_07_bad() [L1551] int data; [L1552] data = 0 VAL [data=0, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1553] COND TRUE staticFive==5 [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()=1, rand()=65536, rand()=0, rand()=0, rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1=-2147483648, staticFive=5] [L1555] data = ((int)(rand() & 1 ? (((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) : -(((unsigned)rand()<<30) ^ ((unsigned)rand()<<15) ^ rand()) - 1)) [L1557] COND TRUE staticFive==5 VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] [L1560] --data VAL [data=-2147483648, GLOBAL_CONST_FALSE=0, GLOBAL_CONST_FIVE=5, GLOBAL_CONST_TRUE=1, globalArgc=0, globalArgv={0:0}, globalFalse=0, globalFive=5, globalTrue=1, staticFive=5] - UnprovableResult [Line: 1560]: Unable to prove that integer overflow can never occur Unable to prove that integer overflow can never occur Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 23 locations, 2 error locations. Started 1 CEGAR loops. OverallTime: 1.0s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 16 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 16 mSDsluCounter, 22 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2 IncrementalHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 22 mSDtfsCounter, 2 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 26 SizeOfPredicates, 0 NumberOfNonLiveVariables, 43 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! [2022-12-13 17:18:39,907 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_cbe72c6a-4fa3-46f5-a703-e91e66944df2/bin/uautomizer-uyxdKDjOR8/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)