./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Copenhagen_true-no-overflow_true-termination_true-valid-memsafety.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Copenhagen_true-no-overflow_true-termination_true-valid-memsafety.c -s /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 13:31:29,907 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 13:31:29,908 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 13:31:29,915 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 13:31:29,915 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 13:31:29,915 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 13:31:29,916 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 13:31:29,917 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 13:31:29,918 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 13:31:29,919 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 13:31:29,919 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 13:31:29,919 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 13:31:29,920 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 13:31:29,921 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 13:31:29,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 13:31:29,922 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 13:31:29,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 13:31:29,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 13:31:29,925 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 13:31:29,926 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 13:31:29,927 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 13:31:29,928 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 13:31:29,930 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 13:31:29,930 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 13:31:29,930 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 13:31:29,931 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 13:31:29,932 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 13:31:29,933 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 13:31:29,933 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 13:31:29,934 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 13:31:29,934 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 13:31:29,935 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 13:31:29,935 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 13:31:29,935 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 13:31:29,936 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 13:31:29,936 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 13:31:29,936 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 13:31:29,947 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 13:31:29,947 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 13:31:29,947 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 13:31:29,948 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 13:31:29,948 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 13:31:29,949 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 13:31:29,949 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 13:31:29,949 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 13:31:29,949 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 13:31:29,949 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 13:31:29,950 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 13:31:29,950 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:31:29,951 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 13:31:29,951 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 13:31:29,952 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 13:31:29,952 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 13:31:29,952 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9bcaeaea390de0d2b32b8c11c56b4b66e7b2005e [2018-11-10 13:31:29,975 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 13:31:29,984 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 13:31:29,987 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 13:31:29,988 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 13:31:29,988 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 13:31:29,989 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Copenhagen_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 13:31:30,031 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/data/11cb00346/5727a4c19a894321898dff3861cdd3b2/FLAG5429313fd [2018-11-10 13:31:30,435 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 13:31:30,436 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/sv-benchmarks/c/termination-crafted/Copenhagen_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 13:31:30,440 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/data/11cb00346/5727a4c19a894321898dff3861cdd3b2/FLAG5429313fd [2018-11-10 13:31:30,448 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/data/11cb00346/5727a4c19a894321898dff3861cdd3b2 [2018-11-10 13:31:30,450 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 13:31:30,451 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 13:31:30,452 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 13:31:30,452 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 13:31:30,455 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 13:31:30,456 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,458 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32089edc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30, skipping insertion in model container [2018-11-10 13:31:30,458 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,467 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 13:31:30,480 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 13:31:30,574 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:31:30,576 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 13:31:30,585 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 13:31:30,593 INFO L193 MainTranslator]: Completed translation [2018-11-10 13:31:30,593 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30 WrapperNode [2018-11-10 13:31:30,593 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 13:31:30,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 13:31:30,594 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 13:31:30,594 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 13:31:30,598 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,601 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,605 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 13:31:30,605 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 13:31:30,605 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 13:31:30,605 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 13:31:30,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,611 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,612 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,614 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,615 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... [2018-11-10 13:31:30,616 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 13:31:30,616 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 13:31:30,616 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 13:31:30,616 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 13:31:30,617 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 13:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 13:31:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 13:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 13:31:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 13:31:30,690 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 13:31:30,690 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 13:31:30,778 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 13:31:30,778 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:30 BoogieIcfgContainer [2018-11-10 13:31:30,778 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 13:31:30,779 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 13:31:30,779 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 13:31:30,780 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 13:31:30,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 01:31:30" (1/3) ... [2018-11-10 13:31:30,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9f39bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:31:30, skipping insertion in model container [2018-11-10 13:31:30,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 01:31:30" (2/3) ... [2018-11-10 13:31:30,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a9f39bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 01:31:30, skipping insertion in model container [2018-11-10 13:31:30,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:30" (3/3) ... [2018-11-10 13:31:30,783 INFO L112 eAbstractionObserver]: Analyzing ICFG Copenhagen_true-no-overflow_true-termination_true-valid-memsafety.c [2018-11-10 13:31:30,788 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 13:31:30,792 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 13:31:30,801 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 13:31:30,827 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 13:31:30,827 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 13:31:30,827 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 13:31:30,827 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 13:31:30,827 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 13:31:30,827 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 13:31:30,827 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 13:31:30,827 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 13:31:30,839 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-10 13:31:30,842 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-10 13:31:30,842 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:30,843 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:30,844 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:30,847 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:30,848 INFO L82 PathProgramCache]: Analyzing trace with hash 604672971, now seen corresponding path program 1 times [2018-11-10 13:31:30,849 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:30,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:30,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:30,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:30,893 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:30,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:30,952 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:30,953 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:31:30,953 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:30,955 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:31:30,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:31:30,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:31:30,965 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2018-11-10 13:31:31,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,004 INFO L93 Difference]: Finished difference Result 37 states and 40 transitions. [2018-11-10 13:31:31,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:31:31,005 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-10 13:31:31,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,013 INFO L225 Difference]: With dead ends: 37 [2018-11-10 13:31:31,013 INFO L226 Difference]: Without dead ends: 23 [2018-11-10 13:31:31,016 INFO L605 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 [2018-11-10 13:31:31,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-10 13:31:31,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 18. [2018-11-10 13:31:31,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 13:31:31,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-10 13:31:31,044 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 8 [2018-11-10 13:31:31,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,044 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-10 13:31:31,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:31:31,044 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-10 13:31:31,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 13:31:31,045 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:31,045 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:31,045 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:31,045 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1564992965, now seen corresponding path program 1 times [2018-11-10 13:31:31,046 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:31,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:31,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,048 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:31,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:31,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:31,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:31,072 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:31:31,072 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:31,073 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:31:31,073 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:31:31,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:31:31,073 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 3 states. [2018-11-10 13:31:31,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,080 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-10 13:31:31,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:31:31,081 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-10 13:31:31,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,081 INFO L225 Difference]: With dead ends: 18 [2018-11-10 13:31:31,081 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 13:31:31,082 INFO L605 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 [2018-11-10 13:31:31,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 13:31:31,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 13:31:31,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 13:31:31,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-10 13:31:31,084 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 9 [2018-11-10 13:31:31,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,084 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-10 13:31:31,084 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:31:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-10 13:31:31,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 13:31:31,085 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:31,085 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:31,085 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:31,085 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1270141709, now seen corresponding path program 1 times [2018-11-10 13:31:31,085 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:31,086 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,086 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:31,087 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,087 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:31,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:31,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:31,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:31,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:31:31,123 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:31,123 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:31:31,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:31:31,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:31:31,124 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 4 states. [2018-11-10 13:31:31,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,160 INFO L93 Difference]: Finished difference Result 23 states and 24 transitions. [2018-11-10 13:31:31,161 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-10 13:31:31,161 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 13:31:31,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,161 INFO L225 Difference]: With dead ends: 23 [2018-11-10 13:31:31,162 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 13:31:31,162 INFO L605 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 [2018-11-10 13:31:31,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 13:31:31,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 19. [2018-11-10 13:31:31,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 13:31:31,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-11-10 13:31:31,165 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-11-10 13:31:31,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,165 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-11-10 13:31:31,165 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:31:31,165 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-11-10 13:31:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 13:31:31,166 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:31,166 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:31,166 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:31,167 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,167 INFO L82 PathProgramCache]: Analyzing trace with hash 719687367, now seen corresponding path program 1 times [2018-11-10 13:31:31,167 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:31,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,168 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:31,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:31,186 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:31,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:31,186 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 13:31:31,186 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:31,187 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 13:31:31,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 13:31:31,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 13:31:31,187 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 3 states. [2018-11-10 13:31:31,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,197 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-10 13:31:31,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 13:31:31,198 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 13:31:31,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,198 INFO L225 Difference]: With dead ends: 19 [2018-11-10 13:31:31,198 INFO L226 Difference]: Without dead ends: 18 [2018-11-10 13:31:31,199 INFO L605 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 [2018-11-10 13:31:31,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-10 13:31:31,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-10 13:31:31,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-10 13:31:31,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2018-11-10 13:31:31,202 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2018-11-10 13:31:31,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,202 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2018-11-10 13:31:31,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 13:31:31,202 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2018-11-10 13:31:31,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-10 13:31:31,203 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:31,203 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:31,203 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:31,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,203 INFO L82 PathProgramCache]: Analyzing trace with hash -270353407, now seen corresponding path program 1 times [2018-11-10 13:31:31,204 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:31,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,205 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:31,205 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,205 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:31,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:31,228 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:31,229 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 13:31:31,229 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 13:31:31,229 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:31,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 13:31:31,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 13:31:31,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 13:31:31,231 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 4 states. [2018-11-10 13:31:31,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,282 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2018-11-10 13:31:31,283 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 13:31:31,283 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-10 13:31:31,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,283 INFO L225 Difference]: With dead ends: 18 [2018-11-10 13:31:31,284 INFO L226 Difference]: Without dead ends: 17 [2018-11-10 13:31:31,284 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-10 13:31:31,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-10 13:31:31,286 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-11-10 13:31:31,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-11-10 13:31:31,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2018-11-10 13:31:31,287 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 14 [2018-11-10 13:31:31,287 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,287 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2018-11-10 13:31:31,287 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 13:31:31,287 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2018-11-10 13:31:31,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-11-10 13:31:31,288 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 13:31:31,288 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 13:31:31,288 INFO L424 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 13:31:31,288 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,288 INFO L82 PathProgramCache]: Analyzing trace with hash -2111584829, now seen corresponding path program 1 times [2018-11-10 13:31:31,289 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 13:31:31,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,290 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 13:31:31,290 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 13:31:31,290 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 13:31:31,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 13:31:31,323 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 13:31:31,324 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 13:31:31,324 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 13:31:31,325 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-11-10 13:31:31,326 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [14], [16], [18], [19], [20], [22], [28], [29], [30] [2018-11-10 13:31:31,354 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 13:31:31,354 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 13:31:31,426 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 13:31:31,426 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-11-10 13:31:31,431 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 13:31:31,431 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 13:31:31,485 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 38.1% of their original sizes. [2018-11-10 13:31:31,485 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 13:31:31,518 INFO L415 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-11-10 13:31:31,518 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 13:31:31,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 13:31:31,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2018-11-10 13:31:31,519 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 13:31:31,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 13:31:31,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 13:31:31,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-11-10 13:31:31,520 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 6 states. [2018-11-10 13:31:31,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 13:31:31,600 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2018-11-10 13:31:31,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 13:31:31,600 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-11-10 13:31:31,600 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 13:31:31,601 INFO L225 Difference]: With dead ends: 17 [2018-11-10 13:31:31,601 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 13:31:31,601 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 18 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2018-11-10 13:31:31,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 13:31:31,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 13:31:31,602 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 13:31:31,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 13:31:31,602 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-11-10 13:31:31,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 13:31:31,602 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 13:31:31,603 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 13:31:31,603 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 13:31:31,603 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 13:31:31,607 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 13:31:31,681 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 13:31:31,682 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 13:31:31,682 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 13:31:31,682 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 22) the Hoare annotation is: true [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 22) no Hoare annotation was computed. [2018-11-10 13:31:31,682 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point L18(line 18) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 18) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L421 ceAbstractionStarter]: At program point L16-3(lines 16 20) the Hoare annotation is: (let ((.cse0 (* 2 main_~x~0))) (and (<= 0 (+ .cse0 4294967296)) (<= 0 (+ (* 2 main_~y~0) 4294967296)) (<= main_~y~0 2147483647) (<= .cse0 4294967294))) [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 22) no Hoare annotation was computed. [2018-11-10 13:31:31,683 INFO L425 ceAbstractionStarter]: For program point L16-4(lines 16 20) no Hoare annotation was computed. [2018-11-10 13:31:31,684 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-10 13:31:31,689 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 01:31:31 BoogieIcfgContainer [2018-11-10 13:31:31,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 13:31:31,690 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 13:31:31,690 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 13:31:31,690 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 13:31:31,690 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 01:31:30" (3/4) ... [2018-11-10 13:31:31,692 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 13:31:31,695 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 13:31:31,696 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 13:31:31,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 13:31:31,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 13:31:31,698 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 13:31:31,721 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3703f30f-80a2-4f51-a219-dd8eed9a24fd/bin-2019/utaipan/witness.graphml [2018-11-10 13:31:31,722 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 13:31:31,722 INFO L168 Benchmark]: Toolchain (without parser) took 1271.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 960.3 MB in the beginning and 1.0 GB in the end (delta: -62.0 MB). Peak memory consumption was 79.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:31,723 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:31,723 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.12 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:31,724 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.30 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:31,724 INFO L168 Benchmark]: Boogie Preprocessor took 10.73 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 13:31:31,724 INFO L168 Benchmark]: RCFGBuilder took 162.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:31,725 INFO L168 Benchmark]: TraceAbstraction took 911.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:31,725 INFO L168 Benchmark]: Witness Printer took 31.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.4 MB). Peak memory consumption was 3.4 MB. Max. memory is 11.5 GB. [2018-11-10 13:31:31,727 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 141.12 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.30 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.73 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 162.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -180.9 MB). Peak memory consumption was 22.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 911.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 104.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 11.5 GB. * Witness Printer took 31.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB 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: 18]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 18]: 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: 16]: Loop Invariant Derived loop invariant: ((0 <= 2 * x + 4294967296 && 0 <= 2 * y + 4294967296) && y <= 2147483647) && 2 * x <= 4294967294 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 6 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 36 SDslu, 67 SDs, 0 SdLazy, 47 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 33 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9333333333333333 AbsIntWeakeningRatio, 0.5333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 5.066666666666666 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 27 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 128 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1276 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 5 PerfectInterpolantSequences, 6/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...