./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non.c -s /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2355a4d05f76bd59f1e3cc71c2462258521b54a0 ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-28 07:30:41,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 07:30:41,776 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 07:30:41,820 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 07:30:41,821 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 07:30:41,823 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 07:30:41,825 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 07:30:41,828 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 07:30:41,832 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 07:30:41,833 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 07:30:41,835 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 07:30:41,837 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 07:30:41,837 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 07:30:41,839 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 07:30:41,841 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 07:30:41,843 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 07:30:41,844 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 07:30:41,846 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 07:30:41,849 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 07:30:41,853 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 07:30:41,855 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 07:30:41,865 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 07:30:41,867 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 07:30:41,871 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 07:30:41,877 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 07:30:41,881 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 07:30:41,882 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 07:30:41,883 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 07:30:41,885 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 07:30:41,887 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 07:30:41,887 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 07:30:41,889 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 07:30:41,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 07:30:41,893 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 07:30:41,894 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 07:30:41,895 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 07:30:41,896 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 07:30:41,896 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 07:30:41,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 07:30:41,898 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 07:30:41,899 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 07:30:41,902 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-28 07:30:41,956 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 07:30:41,956 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 07:30:41,958 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-28 07:30:41,959 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-28 07:30:41,959 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-28 07:30:41,961 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-28 07:30:41,961 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-28 07:30:41,961 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-28 07:30:41,962 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-28 07:30:41,962 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-28 07:30:41,963 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-28 07:30:41,964 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-28 07:30:41,964 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-28 07:30:41,964 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-28 07:30:41,965 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-28 07:30:41,966 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 07:30:41,966 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 07:30:41,966 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 07:30:41,967 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 07:30:41,967 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 07:30:41,967 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 07:30:41,968 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 07:30:41,968 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 07:30:41,968 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 07:30:41,969 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 07:30:41,969 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 07:30:41,969 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 07:30:41,970 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 07:30:41,970 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 07:30:41,972 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 07:30:41,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 07:30:41,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 07:30:41,974 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:30:41,974 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 07:30:41,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 07:30:41,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 07:30:41,975 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-28 07:30:41,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 07:30:41,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 07:30:41,976 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 07:30:41,976 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-28 07:30:41,976 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2355a4d05f76bd59f1e3cc71c2462258521b54a0 [2020-11-28 07:30:42,321 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 07:30:42,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 07:30:42,373 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 07:30:42,375 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 07:30:42,376 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 07:30:42,377 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/../../sv-benchmarks/c/recursive-simple/sum_non.c [2020-11-28 07:30:42,464 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/data/55177600d/1d622a6f6f8840b69e55844d6ac2f7ba/FLAG88c163e39 [2020-11-28 07:30:43,108 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 07:30:43,110 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/sv-benchmarks/c/recursive-simple/sum_non.c [2020-11-28 07:30:43,121 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/data/55177600d/1d622a6f6f8840b69e55844d6ac2f7ba/FLAG88c163e39 [2020-11-28 07:30:43,465 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/data/55177600d/1d622a6f6f8840b69e55844d6ac2f7ba [2020-11-28 07:30:43,476 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 07:30:43,477 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 07:30:43,479 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 07:30:43,481 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 07:30:43,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 07:30:43,496 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,499 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35f7303f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43, skipping insertion in model container [2020-11-28 07:30:43,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 07:30:43,524 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 07:30:43,744 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:30:43,756 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 07:30:43,775 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 07:30:43,792 INFO L208 MainTranslator]: Completed translation [2020-11-28 07:30:43,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43 WrapperNode [2020-11-28 07:30:43,793 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 07:30:43,794 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 07:30:43,794 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 07:30:43,795 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 07:30:43,805 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,813 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,833 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 07:30:43,834 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 07:30:43,834 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 07:30:43,834 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 07:30:43,845 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,845 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,847 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,851 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,853 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,855 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... [2020-11-28 07:30:43,857 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 07:30:43,858 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 07:30:43,858 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 07:30:43,858 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 07:30:43,860 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 07:30:43,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 07:30:43,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 07:30:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-28 07:30:43,941 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-28 07:30:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 07:30:43,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 07:30:44,631 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 07:30:44,631 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 07:30:44,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:30:44 BoogieIcfgContainer [2020-11-28 07:30:44,634 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 07:30:44,636 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 07:30:44,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 07:30:44,641 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 07:30:44,641 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 07:30:43" (1/3) ... [2020-11-28 07:30:44,642 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74050c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:30:44, skipping insertion in model container [2020-11-28 07:30:44,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 07:30:43" (2/3) ... [2020-11-28 07:30:44,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74050c73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 07:30:44, skipping insertion in model container [2020-11-28 07:30:44,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:30:44" (3/3) ... [2020-11-28 07:30:44,645 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2020-11-28 07:30:44,666 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 07:30:44,671 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 07:30:44,686 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 07:30:44,737 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 07:30:44,737 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 07:30:44,737 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 07:30:44,738 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 07:30:44,738 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 07:30:44,738 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 07:30:44,738 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 07:30:44,738 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 07:30:44,764 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-11-28 07:30:44,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:30:44,769 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:30:44,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:30:44,774 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:30:44,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:30:44,784 INFO L82 PathProgramCache]: Analyzing trace with hash 71429977, now seen corresponding path program 1 times [2020-11-28 07:30:44,796 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:30:44,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770874191] [2020-11-28 07:30:44,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:30:44,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:30:45,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:30:45,068 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770874191] [2020-11-28 07:30:45,069 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:30:45,069 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 07:30:45,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684261843] [2020-11-28 07:30:45,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 07:30:45,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:30:45,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 07:30:45,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:30:45,099 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2020-11-28 07:30:45,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:30:45,445 INFO L93 Difference]: Finished difference Result 48 states and 51 transitions. [2020-11-28 07:30:45,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 07:30:45,451 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 5 [2020-11-28 07:30:45,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:30:45,462 INFO L225 Difference]: With dead ends: 48 [2020-11-28 07:30:45,462 INFO L226 Difference]: Without dead ends: 46 [2020-11-28 07:30:45,472 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 07:30:45,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2020-11-28 07:30:45,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 37. [2020-11-28 07:30:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 07:30:45,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 44 transitions. [2020-11-28 07:30:45,537 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 44 transitions. Word has length 5 [2020-11-28 07:30:45,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:30:45,537 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 44 transitions. [2020-11-28 07:30:45,537 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 07:30:45,537 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 44 transitions. [2020-11-28 07:30:45,539 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-28 07:30:45,539 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:30:45,540 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-28 07:30:45,540 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 07:30:45,540 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:30:45,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:30:45,543 INFO L82 PathProgramCache]: Analyzing trace with hash 71430137, now seen corresponding path program 1 times [2020-11-28 07:30:45,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:30:45,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718928227] [2020-11-28 07:30:45,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:30:45,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 07:30:45,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-28 07:30:45,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718928227] [2020-11-28 07:30:45,658 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 07:30:45,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-28 07:30:45,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1458337489] [2020-11-28 07:30:45,659 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 07:30:45,660 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-28 07:30:45,660 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 07:30:45,661 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 07:30:45,661 INFO L87 Difference]: Start difference. First operand 37 states and 44 transitions. Second operand 5 states. [2020-11-28 07:30:45,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 07:30:45,796 INFO L93 Difference]: Finished difference Result 37 states and 44 transitions. [2020-11-28 07:30:45,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 07:30:45,798 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-28 07:30:45,798 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 07:30:45,799 INFO L225 Difference]: With dead ends: 37 [2020-11-28 07:30:45,799 INFO L226 Difference]: Without dead ends: 36 [2020-11-28 07:30:45,800 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-28 07:30:45,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-28 07:30:45,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-28 07:30:45,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2020-11-28 07:30:45,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 42 transitions. [2020-11-28 07:30:45,815 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 42 transitions. Word has length 5 [2020-11-28 07:30:45,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 07:30:45,816 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 42 transitions. [2020-11-28 07:30:45,816 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 07:30:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 42 transitions. [2020-11-28 07:30:45,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 07:30:45,817 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 07:30:45,817 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 07:30:45,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 07:30:45,818 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, sumErr5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-28 07:30:45,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 07:30:45,820 INFO L82 PathProgramCache]: Analyzing trace with hash -2080637951, now seen corresponding path program 1 times [2020-11-28 07:30:45,823 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-28 07:30:45,824 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991346848] [2020-11-28 07:30:45,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 07:30:45,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:30:45,855 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:30:45,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 07:30:45,878 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 07:30:45,899 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-28 07:30:45,900 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 07:30:45,900 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 07:30:45,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 07:30:45 BoogieIcfgContainer [2020-11-28 07:30:45,933 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 07:30:45,934 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 07:30:45,934 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 07:30:45,934 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 07:30:45,935 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 07:30:44" (3/4) ... [2020-11-28 07:30:45,937 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 07:30:45,979 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_87a9c617-9277-4601-a1c3-206c0cf00258/bin/utaipan/witness.graphml [2020-11-28 07:30:45,979 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 07:30:45,981 INFO L168 Benchmark]: Toolchain (without parser) took 2502.54 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 54.0 MB in the beginning and 80.3 MB in the end (delta: -26.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:30:45,982 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:30:45,983 INFO L168 Benchmark]: CACSL2BoogieTranslator took 314.10 ms. Allocated memory is still 86.0 MB. Free memory was 53.9 MB in the beginning and 62.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-28 07:30:45,984 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 61.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:30:45,984 INFO L168 Benchmark]: Boogie Preprocessor took 23.15 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 60.4 MB in the end (delta: 726.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 07:30:45,985 INFO L168 Benchmark]: RCFGBuilder took 776.22 ms. Allocated memory is still 86.0 MB. Free memory was 60.2 MB in the beginning and 44.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:30:45,986 INFO L168 Benchmark]: TraceAbstraction took 1297.51 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 43.7 MB in the beginning and 81.5 MB in the end (delta: -37.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. [2020-11-28 07:30:45,987 INFO L168 Benchmark]: Witness Printer took 45.17 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 80.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 07:30:45,991 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 86.0 MB. Free memory was 40.5 MB in the beginning and 40.4 MB in the end (delta: 70.0 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 314.10 ms. Allocated memory is still 86.0 MB. Free memory was 53.9 MB in the beginning and 62.7 MB in the end (delta: -8.8 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 39.02 ms. Allocated memory is still 86.0 MB. Free memory was 62.7 MB in the beginning and 61.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.15 ms. Allocated memory is still 86.0 MB. Free memory was 61.1 MB in the beginning and 60.4 MB in the end (delta: 726.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 776.22 ms. Allocated memory is still 86.0 MB. Free memory was 60.2 MB in the beginning and 44.1 MB in the end (delta: 16.0 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1297.51 ms. Allocated memory was 86.0 MB in the beginning and 104.9 MB in the end (delta: 18.9 MB). Free memory was 43.7 MB in the beginning and 81.5 MB in the end (delta: -37.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 16.1 GB. * Witness Printer took 45.17 ms. Allocated memory is still 104.9 MB. Free memory was 81.5 MB in the beginning and 80.3 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 8]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int a = __VERIFIER_nondet_int(); [L16] int b = __VERIFIER_nondet_int(); [L17] CALL sum(a, b) VAL [\old(m)=-1, \old(n)=-2147483648] [L7] COND TRUE n <= 0 VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] [L8] m + n VAL [\old(m)=-1, \old(n)=-2147483648, m=-1, n=-2147483648] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 26 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 27 SDtfs, 83 SDslu, 58 SDs, 0 SdLazy, 103 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=1, 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, 2 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 16 NumberOfCodeBlocks, 16 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 104 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! Received shutdown request...