./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/verifythis/tree_max_incorrect.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/verifythis/tree_max_incorrect.c -s /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d175b23e7b65a104262a874bc9fb10ae6a765c43 ................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-25 08:57:17,853 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:57:17,855 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:57:17,868 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:57:17,869 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:57:17,870 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:57:17,871 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:57:17,879 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:57:17,883 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:57:17,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:57:17,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:57:17,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:57:17,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:57:17,892 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:57:17,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:57:17,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:57:17,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:57:17,895 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:57:17,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:57:17,900 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:57:17,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:57:17,906 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:57:17,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:57:17,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:57:17,911 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:57:17,911 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:57:17,911 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:57:17,913 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:57:17,913 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:57:17,914 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:57:17,914 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:57:17,915 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:57:17,915 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:57:17,916 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:57:17,917 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:57:17,917 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:57:17,917 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:57:17,917 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:57:17,918 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:57:17,918 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:57:17,919 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:57:17,920 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-25 08:57:17,943 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:57:17,944 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:57:17,944 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:57:17,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:57:17,945 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:57:17,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:57:17,945 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:57:17,945 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-25 08:57:17,946 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:57:17,947 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:57:17,947 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:57:17,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-25 08:57:17,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:57:17,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:57:17,947 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-25 08:57:17,948 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-25 08:57:17,948 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-25 08:57:17,948 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:57:17,948 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-25 08:57:17,948 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-25 08:57:17,949 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:57:17,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-25 08:57:17,949 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-25 08:57:17,949 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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_14272bf1-a14c-4b71-afd1-7401dfc62821/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 ! call(__VERIFIER_error())) ) 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 -> d175b23e7b65a104262a874bc9fb10ae6a765c43 [2019-11-25 08:57:18,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:57:18,130 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:57:18,133 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:57:18,134 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:57:18,134 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:57:18,136 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/../../sv-benchmarks/c/verifythis/tree_max_incorrect.c [2019-11-25 08:57:18,191 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/data/1ab306e1e/b1c25ab45394407b96dc0e256367a5dd/FLAG484110f92 [2019-11-25 08:57:18,527 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:57:18,528 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/sv-benchmarks/c/verifythis/tree_max_incorrect.c [2019-11-25 08:57:18,532 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/data/1ab306e1e/b1c25ab45394407b96dc0e256367a5dd/FLAG484110f92 [2019-11-25 08:57:18,914 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/data/1ab306e1e/b1c25ab45394407b96dc0e256367a5dd [2019-11-25 08:57:18,917 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:57:18,918 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:57:18,919 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:18,919 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:57:18,922 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:57:18,922 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:18" (1/1) ... [2019-11-25 08:57:18,924 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c264066 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:18, skipping insertion in model container [2019-11-25 08:57:18,924 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:57:18" (1/1) ... [2019-11-25 08:57:18,930 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:57:18,945 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:57:19,151 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:19,160 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:57:19,233 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:57:19,257 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:57:19,258 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19 WrapperNode [2019-11-25 08:57:19,258 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:57:19,258 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:19,259 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:57:19,259 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:57:19,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,277 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:57:19,299 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:57:19,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:57:19,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:57:19,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,313 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,323 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,333 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,341 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,344 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... [2019-11-25 08:57:19,350 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:57:19,350 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:57:19,350 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:57:19,351 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:57:19,351 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/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 [2019-11-25 08:57:19,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-11-25 08:57:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure max [2019-11-25 08:57:19,414 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2019-11-25 08:57:19,414 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_tree [2019-11-25 08:57:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_tree [2019-11-25 08:57:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-11-25 08:57:19,415 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-11-25 08:57:19,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-11-25 08:57:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-25 08:57:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-11-25 08:57:19,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:57:19,417 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:57:19,417 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-25 08:57:19,689 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:57:19,690 INFO L284 CfgBuilder]: Removed 8 assume(true) statements. [2019-11-25 08:57:19,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:19 BoogieIcfgContainer [2019-11-25 08:57:19,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:57:19,692 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-25 08:57:19,692 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-25 08:57:19,694 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-25 08:57:19,695 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.11 08:57:18" (1/3) ... [2019-11-25 08:57:19,695 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205d09bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:19, skipping insertion in model container [2019-11-25 08:57:19,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:57:19" (2/3) ... [2019-11-25 08:57:19,696 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@205d09bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.11 08:57:19, skipping insertion in model container [2019-11-25 08:57:19,696 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:19" (3/3) ... [2019-11-25 08:57:19,698 INFO L109 eAbstractionObserver]: Analyzing ICFG tree_max_incorrect.c [2019-11-25 08:57:19,716 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-25 08:57:19,722 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-25 08:57:19,732 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-25 08:57:19,748 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-25 08:57:19,748 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-25 08:57:19,749 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-25 08:57:19,749 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:57:19,749 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:57:19,749 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-25 08:57:19,749 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:57:19,749 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-25 08:57:19,765 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states. [2019-11-25 08:57:19,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2019-11-25 08:57:19,771 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:19,771 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:19,772 INFO L410 AbstractCegarLoop]: === Iteration 1 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:19,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:19,777 INFO L82 PathProgramCache]: Analyzing trace with hash -891537794, now seen corresponding path program 1 times [2019-11-25 08:57:19,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:19,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2033458788] [2019-11-25 08:57:19,785 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:19,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,118 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:57:20,120 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2033458788] [2019-11-25 08:57:20,121 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:20,121 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-11-25 08:57:20,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299319702] [2019-11-25 08:57:20,127 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-25 08:57:20,128 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:20,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-25 08:57:20,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-11-25 08:57:20,143 INFO L87 Difference]: Start difference. First operand 40 states. Second operand 8 states. [2019-11-25 08:57:20,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:20,632 INFO L93 Difference]: Finished difference Result 73 states and 96 transitions. [2019-11-25 08:57:20,633 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-11-25 08:57:20,634 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2019-11-25 08:57:20,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:20,648 INFO L225 Difference]: With dead ends: 73 [2019-11-25 08:57:20,649 INFO L226 Difference]: Without dead ends: 34 [2019-11-25 08:57:20,657 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:57:20,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-11-25 08:57:20,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-11-25 08:57:20,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-11-25 08:57:20,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 43 transitions. [2019-11-25 08:57:20,712 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 43 transitions. Word has length 18 [2019-11-25 08:57:20,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:20,713 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 43 transitions. [2019-11-25 08:57:20,713 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-25 08:57:20,714 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 43 transitions. [2019-11-25 08:57:20,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2019-11-25 08:57:20,721 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:20,721 INFO L410 BasicCegarLoop]: trace histogram [3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:20,722 INFO L410 AbstractCegarLoop]: === Iteration 2 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:20,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:20,722 INFO L82 PathProgramCache]: Analyzing trace with hash 1509693249, now seen corresponding path program 1 times [2019-11-25 08:57:20,722 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:20,723 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309309853] [2019-11-25 08:57:20,723 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:20,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:20,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:57:21,014 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-11-25 08:57:21,014 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309309853] [2019-11-25 08:57:21,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:57:21,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-11-25 08:57:21,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534854130] [2019-11-25 08:57:21,017 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-11-25 08:57:21,017 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:57:21,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-11-25 08:57:21,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-11-25 08:57:21,018 INFO L87 Difference]: Start difference. First operand 34 states and 43 transitions. Second operand 9 states. [2019-11-25 08:57:21,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:57:21,277 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2019-11-25 08:57:21,278 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-25 08:57:21,278 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 28 [2019-11-25 08:57:21,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-25 08:57:21,280 INFO L225 Difference]: With dead ends: 47 [2019-11-25 08:57:21,280 INFO L226 Difference]: Without dead ends: 36 [2019-11-25 08:57:21,281 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-11-25 08:57:21,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-11-25 08:57:21,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-11-25 08:57:21,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-11-25 08:57:21,289 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 46 transitions. [2019-11-25 08:57:21,289 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 46 transitions. Word has length 28 [2019-11-25 08:57:21,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-25 08:57:21,290 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 46 transitions. [2019-11-25 08:57:21,290 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-11-25 08:57:21,290 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 46 transitions. [2019-11-25 08:57:21,292 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-11-25 08:57:21,292 INFO L402 BasicCegarLoop]: Found error trace [2019-11-25 08:57:21,292 INFO L410 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:57:21,293 INFO L410 AbstractCegarLoop]: === Iteration 3 === [checkErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-25 08:57:21,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:57:21,293 INFO L82 PathProgramCache]: Analyzing trace with hash -896236761, now seen corresponding path program 1 times [2019-11-25 08:57:21,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:57:21,294 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708574164] [2019-11-25 08:57:21,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:57:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:21,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:57:21,379 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:57:21,380 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-25 08:57:21,416 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.11 08:57:21 BoogieIcfgContainer [2019-11-25 08:57:21,416 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-25 08:57:21,417 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:57:21,417 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:57:21,417 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:57:21,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:57:19" (3/4) ... [2019-11-25 08:57:21,420 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-11-25 08:57:21,476 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_14272bf1-a14c-4b71-afd1-7401dfc62821/bin/uautomizer/witness.graphml [2019-11-25 08:57:21,477 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:57:21,478 INFO L168 Benchmark]: Toolchain (without parser) took 2560.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.1 MB in the beginning and 962.3 MB in the end (delta: -12.2 MB). Peak memory consumption was 127.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,479 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:21,480 INFO L168 Benchmark]: CACSL2BoogieTranslator took 339.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,480 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,481 INFO L168 Benchmark]: Boogie Preprocessor took 51.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:21,481 INFO L168 Benchmark]: RCFGBuilder took 340.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,482 INFO L168 Benchmark]: TraceAbstraction took 1724.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.3 MB in the end (delta: 139.7 MB). Peak memory consumption was 139.7 MB. Max. memory is 11.5 GB. [2019-11-25 08:57:21,482 INFO L168 Benchmark]: Witness Printer took 59.94 ms. Allocated memory is still 1.2 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:57:21,485 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 967.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 339.49 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.1 MB in the beginning and 1.1 GB in the end (delta: -184.3 MB). Peak memory consumption was 23.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 40.14 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 51.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 340.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 29.1 MB). Peak memory consumption was 29.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1724.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 962.3 MB in the end (delta: 139.7 MB). Peak memory consumption was 139.7 MB. Max. memory is 11.5 GB. * Witness Printer took 59.94 ms. Allocated memory is still 1.2 GB. Free memory is still 962.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L58] CALL nondet_tree() [L18] COND FALSE !(__VERIFIER_nondet_bool()) [L21] struct node *n = (struct node *)malloc(sizeof(struct node)); [L22] n->data = __VERIFIER_nondet_int() [L23] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() [L19] return 0; VAL [\result={0:0}] [L23] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L23] n->left = nondet_tree() [L24] CALL, EXPR nondet_tree() [L18] COND TRUE __VERIFIER_nondet_bool() [L19] return 0; VAL [\result={0:0}] [L24] RET, EXPR nondet_tree() VAL [malloc(sizeof(struct node))={-1:0}, n={-1:0}, nondet_tree()={0:0}] [L24] n->right = nondet_tree() [L25] return n; VAL [\result={-1:0}, malloc(sizeof(struct node))={-1:0}, n={-1:0}] [L58] RET nondet_tree() [L53] CALL, EXPR max(n) VAL [n={-1:0}] [L30] COND FALSE !(!n) [L33] EXPR n->left VAL [n={-1:0}, n={-1:0}, n->left={0:0}] [L33] CALL, EXPR max(n->left) VAL [n={0:0}] [L30] COND TRUE !n [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L33] RET, EXPR max(n->left) VAL [max(n->left)=-2147483648, n={-1:0}, n={-1:0}, n->left={0:0}] [L33] int a = max(n->left); [L34] EXPR n->right VAL [a=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] CALL, EXPR max(n->right) VAL [n={0:0}] [L30] COND TRUE !n [L31] return -2147483648; VAL [\result=-2147483648, n={0:0}, n={0:0}] [L34] RET, EXPR max(n->right) VAL [a=-2147483648, max(n->right)=-2147483648, n={-1:0}, n={-1:0}, n->right={0:0}] [L34] int b = max(n->right); [L35] COND TRUE a >= b [L35] return a; VAL [\result=-2147483648, a=-2147483648, b=-2147483648, n={-1:0}, n={-1:0}] [L53] RET, EXPR max(n) [L53] int a = max(n); [L54] CALL check(n, a) [L41] COND TRUE \read(*n) [L42] n->data [L9] COND TRUE !cond [L9] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 40 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 3, TraceHistogramMax: 3, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 69 SDslu, 223 SDs, 0 SdLazy, 320 SolverSat, 30 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 34 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=0, 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, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 5128 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 9/9 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...