./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/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 64bit --witnessprinter.graph.data.programhash ff3652fa62b489d4e6a4a85c8349c06d13bd2232 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 11:24:45,889 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 11:24:45,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 11:24:45,898 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 11:24:45,898 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 11:24:45,899 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 11:24:45,900 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 11:24:45,901 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 11:24:45,902 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 11:24:45,902 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 11:24:45,903 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 11:24:45,903 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 11:24:45,904 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 11:24:45,905 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 11:24:45,905 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 11:24:45,906 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 11:24:45,907 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 11:24:45,908 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 11:24:45,909 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 11:24:45,910 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 11:24:45,911 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 11:24:45,912 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 11:24:45,913 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 11:24:45,914 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 11:24:45,914 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 11:24:45,914 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 11:24:45,915 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 11:24:45,916 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 11:24:45,916 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 11:24:45,917 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 11:24:45,917 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 11:24:45,918 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 11:24:45,918 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 11:24:45,918 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 11:24:45,919 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 11:24:45,919 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 11:24:45,919 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-28 11:24:45,929 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 11:24:45,930 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 11:24:45,930 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 11:24:45,930 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 11:24:45,931 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 11:24:45,931 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 11:24:45,931 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 11:24:45,931 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 11:24:45,931 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-28 11:24:45,931 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 11:24:45,932 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 11:24:45,932 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 11:24:45,933 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 11:24:45,933 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 11:24:45,934 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 11:24:45,934 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ff3652fa62b489d4e6a4a85c8349c06d13bd2232 [2018-11-28 11:24:45,955 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 11:24:45,964 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 11:24:45,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 11:24:45,967 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 11:24:45,967 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 11:24:45,968 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-28 11:24:46,005 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/data/9f25881f3/57c4f52f37e9441e91a19e1f72638f18/FLAG384d33a53 [2018-11-28 11:24:46,343 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 11:24:46,344 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/sv-benchmarks/c/termination-crafted-lit/PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-28 11:24:46,348 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/data/9f25881f3/57c4f52f37e9441e91a19e1f72638f18/FLAG384d33a53 [2018-11-28 11:24:46,766 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/data/9f25881f3/57c4f52f37e9441e91a19e1f72638f18 [2018-11-28 11:24:46,768 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 11:24:46,769 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 11:24:46,770 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 11:24:46,770 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 11:24:46,772 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 11:24:46,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,774 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e5d50a9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46, skipping insertion in model container [2018-11-28 11:24:46,774 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 11:24:46,787 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 11:24:46,881 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:24:46,884 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 11:24:46,894 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 11:24:46,901 INFO L195 MainTranslator]: Completed translation [2018-11-28 11:24:46,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46 WrapperNode [2018-11-28 11:24:46,902 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 11:24:46,902 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 11:24:46,902 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 11:24:46,902 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 11:24:46,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,911 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,915 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 11:24:46,915 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 11:24:46,915 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 11:24:46,915 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 11:24:46,920 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,921 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,921 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,923 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,925 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... [2018-11-28 11:24:46,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 11:24:46,927 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 11:24:46,927 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 11:24:46,927 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 11:24:46,927 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/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 [2018-11-28 11:24:46,996 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 11:24:46,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 11:24:46,997 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 11:24:46,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 11:24:46,997 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 11:24:46,997 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 11:24:47,086 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 11:24:47,086 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-11-28 11:24:47,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:47 BoogieIcfgContainer [2018-11-28 11:24:47,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 11:24:47,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 11:24:47,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 11:24:47,090 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 11:24:47,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 11:24:46" (1/3) ... [2018-11-28 11:24:47,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c28d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:24:47, skipping insertion in model container [2018-11-28 11:24:47,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 11:24:46" (2/3) ... [2018-11-28 11:24:47,091 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17c28d8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 11:24:47, skipping insertion in model container [2018-11-28 11:24:47,091 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:47" (3/3) ... [2018-11-28 11:24:47,093 INFO L112 eAbstractionObserver]: Analyzing ICFG PodelskiRybalchenko-TACAS2011-Fig2_true-termination_true-no-overflow.c [2018-11-28 11:24:47,100 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 11:24:47,106 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-28 11:24:47,118 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-28 11:24:47,141 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 11:24:47,142 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 11:24:47,142 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 11:24:47,142 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 11:24:47,142 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 11:24:47,142 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 11:24:47,142 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 11:24:47,142 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 11:24:47,142 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 11:24:47,155 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-28 11:24:47,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-28 11:24:47,159 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,160 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,161 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,165 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-11-28 11:24:47,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,209 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,209 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:24:47,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 11:24:47,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:24:47,290 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:24:47,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:24:47,291 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-11-28 11:24:47,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,368 INFO L93 Difference]: Finished difference Result 53 states and 75 transitions. [2018-11-28 11:24:47,368 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-28 11:24:47,369 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-28 11:24:47,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,375 INFO L225 Difference]: With dead ends: 53 [2018-11-28 11:24:47,375 INFO L226 Difference]: Without dead ends: 30 [2018-11-28 11:24:47,377 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-28 11:24:47,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2018-11-28 11:24:47,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 23. [2018-11-28 11:24:47,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-11-28 11:24:47,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 28 transitions. [2018-11-28 11:24:47,399 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 28 transitions. Word has length 8 [2018-11-28 11:24:47,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,399 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 28 transitions. [2018-11-28 11:24:47,399 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:24:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 28 transitions. [2018-11-28 11:24:47,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:24:47,399 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,400 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,400 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,400 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,400 INFO L82 PathProgramCache]: Analyzing trace with hash 350544817, now seen corresponding path program 1 times [2018-11-28 11:24:47,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,400 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,402 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,402 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,426 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:24:47,427 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:24:47,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:24:47,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:24:47,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,428 INFO L87 Difference]: Start difference. First operand 23 states and 28 transitions. Second operand 3 states. [2018-11-28 11:24:47,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,439 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-11-28 11:24:47,439 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:24:47,439 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 11:24:47,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,440 INFO L225 Difference]: With dead ends: 23 [2018-11-28 11:24:47,440 INFO L226 Difference]: Without dead ends: 22 [2018-11-28 11:24:47,441 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-28 11:24:47,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2018-11-28 11:24:47,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2018-11-28 11:24:47,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2018-11-28 11:24:47,444 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 9 [2018-11-28 11:24:47,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,444 INFO L480 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2018-11-28 11:24:47,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:24:47,444 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2018-11-28 11:24:47,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-28 11:24:47,445 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,445 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,445 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,445 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,446 INFO L82 PathProgramCache]: Analyzing trace with hash 350546515, now seen corresponding path program 1 times [2018-11-28 11:24:47,446 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,446 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,447 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,447 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,465 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:24:47,465 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:24:47,465 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:24:47,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:24:47,465 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,466 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 3 states. [2018-11-28 11:24:47,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,479 INFO L93 Difference]: Finished difference Result 23 states and 27 transitions. [2018-11-28 11:24:47,479 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:24:47,480 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-28 11:24:47,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,480 INFO L225 Difference]: With dead ends: 23 [2018-11-28 11:24:47,480 INFO L226 Difference]: Without dead ends: 16 [2018-11-28 11:24:47,481 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-28 11:24:47,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-11-28 11:24:47,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-28 11:24:47,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2018-11-28 11:24:47,483 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 9 [2018-11-28 11:24:47,483 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,484 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2018-11-28 11:24:47,484 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:24:47,484 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2018-11-28 11:24:47,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 11:24:47,484 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,484 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,485 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,485 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753438, now seen corresponding path program 1 times [2018-11-28 11:24:47,487 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,487 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,488 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,489 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,489 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,518 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 11:24:47,518 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 11:24:47,518 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 11:24:47,518 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 11:24:47,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 11:24:47,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,519 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 3 states. [2018-11-28 11:24:47,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,541 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2018-11-28 11:24:47,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 11:24:47,542 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-28 11:24:47,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,542 INFO L225 Difference]: With dead ends: 15 [2018-11-28 11:24:47,542 INFO L226 Difference]: Without dead ends: 14 [2018-11-28 11:24:47,543 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 11:24:47,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-28 11:24:47,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-28 11:24:47,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-28 11:24:47,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2018-11-28 11:24:47,545 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 11 [2018-11-28 11:24:47,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,545 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2018-11-28 11:24:47,545 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 11:24:47,545 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2018-11-28 11:24:47,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-28 11:24:47,545 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,545 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,546 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,546 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,546 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753493, now seen corresponding path program 1 times [2018-11-28 11:24:47,546 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,546 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,547 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,547 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,582 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:24:47,582 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:24:47,607 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,618 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:47,631 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,645 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:24:47,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 3 [2018-11-28 11:24:47,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 11:24:47,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 11:24:47,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:24:47,646 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 4 states. [2018-11-28 11:24:47,666 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,666 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-28 11:24:47,667 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 11:24:47,667 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-11-28 11:24:47,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,667 INFO L225 Difference]: With dead ends: 22 [2018-11-28 11:24:47,667 INFO L226 Difference]: Without dead ends: 21 [2018-11-28 11:24:47,667 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 11:24:47,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-28 11:24:47,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 17. [2018-11-28 11:24:47,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-28 11:24:47,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-11-28 11:24:47,670 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 11 [2018-11-28 11:24:47,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,670 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-11-28 11:24:47,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 11:24:47,670 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-11-28 11:24:47,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-28 11:24:47,671 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 11:24:47,671 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 11:24:47,671 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-28 11:24:47,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 11:24:47,671 INFO L82 PathProgramCache]: Analyzing trace with hash 943045765, now seen corresponding path program 2 times [2018-11-28 11:24:47,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 11:24:47,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 11:24:47,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,673 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 11:24:47,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 11:24:47,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 11:24:47,701 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 11:24:47,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 11:24:47,701 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 11:24:47,707 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-11-28 11:24:47,712 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2018-11-28 11:24:47,712 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-11-28 11:24:47,713 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 11:24:47,727 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-11-28 11:24:47,742 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 11:24:47,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3] total 6 [2018-11-28 11:24:47,742 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 11:24:47,742 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 11:24:47,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-28 11:24:47,743 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 7 states. [2018-11-28 11:24:47,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 11:24:47,829 INFO L93 Difference]: Finished difference Result 31 states and 36 transitions. [2018-11-28 11:24:47,829 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 11:24:47,829 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-11-28 11:24:47,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 11:24:47,830 INFO L225 Difference]: With dead ends: 31 [2018-11-28 11:24:47,830 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 11:24:47,830 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2018-11-28 11:24:47,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 11:24:47,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 11:24:47,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 11:24:47,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 11:24:47,831 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-28 11:24:47,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 11:24:47,831 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 11:24:47,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 11:24:47,832 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 11:24:47,832 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 11:24:47,836 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 11:24:47,878 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 11:24:47,878 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:24:47,878 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 11:24:47,878 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 11:24:47,878 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 11:24:47,878 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 11:24:47,878 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:24:47,878 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 21) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 1 main_~y~0) (<= 0 main_~x~0)) [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 21) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 23) the Hoare annotation is: (<= main_~x~0 2147483647) [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 20) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point L20(line 20) no Hoare annotation was computed. [2018-11-28 11:24:47,879 INFO L448 ceAbstractionStarter]: For program point L20-1(line 20) no Hoare annotation was computed. [2018-11-28 11:24:47,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 11:24:47 BoogieIcfgContainer [2018-11-28 11:24:47,890 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 11:24:47,890 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 11:24:47,890 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 11:24:47,890 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 11:24:47,890 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 11:24:47" (3/4) ... [2018-11-28 11:24:47,893 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 11:24:47,897 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 11:24:47,898 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 11:24:47,900 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 11:24:47,900 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 11:24:47,900 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 11:24:47,927 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_91d68b82-2609-4ebf-8efd-fdb1e0332f5f/bin-2019/uautomizer/witness.graphml [2018-11-28 11:24:47,927 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 11:24:47,928 INFO L168 Benchmark]: Toolchain (without parser) took 1159.18 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 958.7 MB in the beginning and 962.6 MB in the end (delta: -3.9 MB). Peak memory consumption was 80.0 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:47,929 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:47,929 INFO L168 Benchmark]: CACSL2BoogieTranslator took 131.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:47,930 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:47,930 INFO L168 Benchmark]: Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 11:24:47,930 INFO L168 Benchmark]: RCFGBuilder took 159.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:47,930 INFO L168 Benchmark]: TraceAbstraction took 802.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.0 MB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:47,931 INFO L168 Benchmark]: Witness Printer took 37.39 ms. Allocated memory is still 1.1 GB. Free memory was 966.0 MB in the beginning and 962.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-28 11:24:47,933 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 131.95 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 12.44 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 159.73 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 83.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -118.7 MB). Peak memory consumption was 18.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 802.46 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 966.0 MB in the end (delta: 100.6 MB). Peak memory consumption was 100.6 MB. Max. memory is 11.5 GB. * Witness Printer took 37.39 ms. Allocated memory is still 1.1 GB. Free memory was 966.0 MB in the beginning and 962.6 MB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 20]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (x <= 2147483647 && 1 <= y) && 0 <= x - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.7s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 63 SDslu, 54 SDs, 0 SdLazy, 102 SolverSat, 27 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=1, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 12 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 17 NumberOfFragments, 17 HoareAnnotationTreeSize, 6 FomulaSimplifications, 134 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 79 ConstructedInterpolants, 0 QuantifiedInterpolants, 1701 SizeOfPredicates, 1 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 7 ConjunctsInUnsatCore, 8 InterpolantComputations, 4 PerfectInterpolantSequences, 6/19 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...