./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_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non.c -s /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer --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 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 03:10:00,326 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-28 03:10:00,329 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-28 03:10:00,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-28 03:10:00,397 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-28 03:10:00,402 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-28 03:10:00,404 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-28 03:10:00,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-28 03:10:00,411 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-28 03:10:00,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-28 03:10:00,419 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-28 03:10:00,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-28 03:10:00,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-28 03:10:00,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-28 03:10:00,427 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-28 03:10:00,429 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-28 03:10:00,430 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-28 03:10:00,435 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-28 03:10:00,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-28 03:10:00,447 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-28 03:10:00,449 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-28 03:10:00,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-28 03:10:00,453 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-28 03:10:00,454 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-28 03:10:00,463 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-28 03:10:00,464 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-28 03:10:00,465 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-28 03:10:00,467 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-28 03:10:00,468 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-28 03:10:00,469 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-28 03:10:00,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-28 03:10:00,471 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-28 03:10:00,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-28 03:10:00,475 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-28 03:10:00,476 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-28 03:10:00,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-28 03:10:00,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-28 03:10:00,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-28 03:10:00,479 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-28 03:10:00,480 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-28 03:10:00,481 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-28 03:10:00,485 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-11-28 03:10:00,525 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-28 03:10:00,526 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-28 03:10:00,528 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-28 03:10:00,528 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-28 03:10:00,529 INFO L138 SettingsManager]: * Use SBE=true [2020-11-28 03:10:00,529 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-28 03:10:00,529 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-28 03:10:00,530 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-28 03:10:00,530 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-28 03:10:00,530 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-28 03:10:00,532 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-28 03:10:00,532 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-28 03:10:00,532 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-28 03:10:00,533 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-28 03:10:00,533 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-28 03:10:00,533 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-28 03:10:00,534 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-28 03:10:00,534 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-28 03:10:00,534 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-28 03:10:00,535 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-28 03:10:00,535 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-28 03:10:00,535 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-28 03:10:00,535 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-28 03:10:00,536 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-28 03:10:00,536 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-28 03:10:00,537 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-28 03:10:00,537 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-28 03:10:00,537 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-28 03:10:00,537 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-28 03:10:00,538 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-28 03:10:00,538 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-28 03:10:00,538 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2355a4d05f76bd59f1e3cc71c2462258521b54a0 [2020-11-28 03:10:00,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-28 03:10:00,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-28 03:10:00,850 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-28 03:10:00,852 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-28 03:10:00,853 INFO L275 PluginConnector]: CDTParser initialized [2020-11-28 03:10:00,854 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_non.c [2020-11-28 03:10:00,939 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/data/2bf13b0f3/e269e447a7fe41319e7ed0f38a01640d/FLAGf4106935a [2020-11-28 03:10:01,458 INFO L306 CDTParser]: Found 1 translation units. [2020-11-28 03:10:01,459 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/sv-benchmarks/c/recursive-simple/sum_non.c [2020-11-28 03:10:01,473 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/data/2bf13b0f3/e269e447a7fe41319e7ed0f38a01640d/FLAGf4106935a [2020-11-28 03:10:01,821 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/data/2bf13b0f3/e269e447a7fe41319e7ed0f38a01640d [2020-11-28 03:10:01,824 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-28 03:10:01,826 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-28 03:10:01,827 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:01,828 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-28 03:10:01,831 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-28 03:10:01,832 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:01" (1/1) ... [2020-11-28 03:10:01,834 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b506eac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:01, skipping insertion in model container [2020-11-28 03:10:01,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:10:01" (1/1) ... [2020-11-28 03:10:01,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-28 03:10:01,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-28 03:10:02,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:02,057 INFO L203 MainTranslator]: Completed pre-run [2020-11-28 03:10:02,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-28 03:10:02,098 INFO L208 MainTranslator]: Completed translation [2020-11-28 03:10:02,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02 WrapperNode [2020-11-28 03:10:02,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-28 03:10:02,102 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:02,102 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-28 03:10:02,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-28 03:10:02,115 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,122 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-28 03:10:02,136 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-28 03:10:02,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-28 03:10:02,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-28 03:10:02,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,148 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,148 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,154 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... [2020-11-28 03:10:02,156 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-28 03:10:02,157 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-28 03:10:02,157 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-28 03:10:02,157 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-28 03:10:02,158 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/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 03:10:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-28 03:10:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-28 03:10:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-11-28 03:10:02,232 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-11-28 03:10:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-28 03:10:02,232 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-28 03:10:02,785 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-28 03:10:02,786 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-28 03:10:02,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:02 BoogieIcfgContainer [2020-11-28 03:10:02,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-28 03:10:02,791 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-28 03:10:02,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-28 03:10:02,795 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-28 03:10:02,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:10:01" (1/3) ... [2020-11-28 03:10:02,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5776e010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:02, skipping insertion in model container [2020-11-28 03:10:02,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:10:02" (2/3) ... [2020-11-28 03:10:02,797 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5776e010 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:10:02, skipping insertion in model container [2020-11-28 03:10:02,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:02" (3/3) ... [2020-11-28 03:10:02,798 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non.c [2020-11-28 03:10:02,816 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-28 03:10:02,821 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-28 03:10:02,833 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-28 03:10:02,873 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-28 03:10:02,873 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-28 03:10:02,873 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-28 03:10:02,874 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-28 03:10:02,874 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-28 03:10:02,874 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-28 03:10:02,874 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-28 03:10:02,874 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-28 03:10:02,896 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-11-28 03:10:02,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:10:02,901 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:02,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:10:02,902 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 03:10:02,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:02,909 INFO L82 PathProgramCache]: Analyzing trace with hash 890593104, now seen corresponding path program 1 times [2020-11-28 03:10:02,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:02,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982728588] [2020-11-28 03:10:02,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:03,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:03,207 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 03:10:03,208 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982728588] [2020-11-28 03:10:03,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:03,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-28 03:10:03,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753154378] [2020-11-28 03:10:03,214 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-28 03:10:03,215 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:03,229 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-28 03:10:03,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-28 03:10:03,232 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 6 states. [2020-11-28 03:10:03,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:03,458 INFO L93 Difference]: Finished difference Result 57 states and 60 transitions. [2020-11-28 03:10:03,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-28 03:10:03,461 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-28 03:10:03,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:03,482 INFO L225 Difference]: With dead ends: 57 [2020-11-28 03:10:03,483 INFO L226 Difference]: Without dead ends: 47 [2020-11-28 03:10:03,485 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-11-28 03:10:03,499 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2020-11-28 03:10:03,523 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 38. [2020-11-28 03:10:03,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2020-11-28 03:10:03,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2020-11-28 03:10:03,527 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 6 [2020-11-28 03:10:03,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:03,528 INFO L481 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2020-11-28 03:10:03,528 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-28 03:10:03,528 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2020-11-28 03:10:03,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-28 03:10:03,529 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:03,529 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-28 03:10:03,529 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-28 03:10:03,530 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 03:10:03,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:03,536 INFO L82 PathProgramCache]: Analyzing trace with hash 890593264, now seen corresponding path program 1 times [2020-11-28 03:10:03,537 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:03,537 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138060414] [2020-11-28 03:10:03,537 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:03,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-28 03:10:03,626 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 03:10:03,626 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138060414] [2020-11-28 03:10:03,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-28 03:10:03,627 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-28 03:10:03,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356431146] [2020-11-28 03:10:03,628 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-28 03:10:03,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-28 03:10:03,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-28 03:10:03,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-28 03:10:03,629 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand 5 states. [2020-11-28 03:10:03,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-28 03:10:03,693 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2020-11-28 03:10:03,694 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-28 03:10:03,694 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 6 [2020-11-28 03:10:03,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-28 03:10:03,695 INFO L225 Difference]: With dead ends: 38 [2020-11-28 03:10:03,695 INFO L226 Difference]: Without dead ends: 37 [2020-11-28 03:10:03,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 03:10:03,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2020-11-28 03:10:03,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2020-11-28 03:10:03,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2020-11-28 03:10:03,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2020-11-28 03:10:03,712 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 6 [2020-11-28 03:10:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-28 03:10:03,712 INFO L481 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2020-11-28 03:10:03,712 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-28 03:10:03,713 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2020-11-28 03:10:03,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-28 03:10:03,715 INFO L414 BasicCegarLoop]: Found error trace [2020-11-28 03:10:03,715 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-28 03:10:03,716 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-28 03:10:03,716 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 03:10:03,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-28 03:10:03,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1838582506, now seen corresponding path program 1 times [2020-11-28 03:10:03,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-28 03:10:03,719 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625237513] [2020-11-28 03:10:03,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-28 03:10:03,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:03,755 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:03,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-28 03:10:03,780 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-28 03:10:03,810 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-28 03:10:03,810 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-28 03:10:03,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-28 03:10:03,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 03:10:03 BoogieIcfgContainer [2020-11-28 03:10:03,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-28 03:10:03,834 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-28 03:10:03,834 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-28 03:10:03,835 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-28 03:10:03,835 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:10:02" (3/4) ... [2020-11-28 03:10:03,837 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-28 03:10:03,869 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_a8f31d65-6b83-486f-8baf-904f6342a97b/bin/uautomizer/witness.graphml [2020-11-28 03:10:03,869 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-28 03:10:03,871 INFO L168 Benchmark]: Toolchain (without parser) took 2044.37 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 62.6 MB in the beginning and 90.2 MB in the end (delta: -27.6 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:03,872 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 48.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:03,873 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.98 ms. Allocated memory is still 90.2 MB. Free memory was 62.4 MB in the beginning and 67.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:03,873 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.65 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:03,874 INFO L168 Benchmark]: Boogie Preprocessor took 19.72 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.3 MB in the end (delta: 722.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:03,875 INFO L168 Benchmark]: RCFGBuilder took 632.56 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 52.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:03,875 INFO L168 Benchmark]: TraceAbstraction took 1042.79 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 92.3 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-28 03:10:03,876 INFO L168 Benchmark]: Witness Printer took 35.05 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-28 03:10:03,880 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 90.2 MB. Free memory was 50.2 MB in the beginning and 50.1 MB in the end (delta: 48.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 271.98 ms. Allocated memory is still 90.2 MB. Free memory was 62.4 MB in the beginning and 67.5 MB in the end (delta: -5.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.65 ms. Allocated memory is still 90.2 MB. Free memory was 67.5 MB in the beginning and 66.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 19.72 ms. Allocated memory is still 90.2 MB. Free memory was 66.0 MB in the beginning and 65.3 MB in the end (delta: 722.7 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 632.56 ms. Allocated memory is still 90.2 MB. Free memory was 65.3 MB in the beginning and 52.2 MB in the end (delta: 13.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1042.79 ms. Allocated memory was 90.2 MB in the beginning and 119.5 MB in the end (delta: 29.4 MB). Free memory was 51.9 MB in the beginning and 92.3 MB in the end (delta: -40.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 35.05 ms. Allocated memory is still 119.5 MB. Free memory was 92.3 MB in the beginning and 90.2 MB in the end (delta: 2.1 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)=-2147483648, \old(n)=-1] [L7] COND TRUE n <= 0 VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] [L8] m + n VAL [\old(m)=-2147483648, \old(n)=-1, m=-2147483648, n=-1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 32 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 31 SDtfs, 87 SDslu, 71 SDs, 0 SdLazy, 111 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 10 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 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...