./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/bitvector/jain_5_true-unreach-call_true-no-overflow.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/bitvector/jain_5_true-unreach-call_true-no-overflow.i -s /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e73cce99fb85a27def70d0b47ca7f846df8b34e4 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 16:20:12,549 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 16:20:12,550 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 16:20:12,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 16:20:12,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 16:20:12,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 16:20:12,557 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 16:20:12,558 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 16:20:12,559 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 16:20:12,560 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 16:20:12,560 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 16:20:12,560 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 16:20:12,561 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 16:20:12,561 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 16:20:12,562 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 16:20:12,562 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 16:20:12,563 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 16:20:12,564 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 16:20:12,565 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 16:20:12,566 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 16:20:12,566 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 16:20:12,567 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 16:20:12,568 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 16:20:12,568 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 16:20:12,568 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 16:20:12,569 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 16:20:12,569 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 16:20:12,570 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 16:20:12,570 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 16:20:12,571 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 16:20:12,571 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 16:20:12,571 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 16:20:12,572 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 16:20:12,572 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 16:20:12,572 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 16:20:12,573 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 16:20:12,573 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 16:20:12,581 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 16:20:12,581 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 16:20:12,581 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 16:20:12,581 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 16:20:12,581 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 16:20:12,582 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 16:20:12,582 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 16:20:12,583 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 16:20:12,583 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 16:20:12,584 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 16:20:12,584 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 16:20:12,584 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 16:20:12,585 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 16:20:12,585 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 16:20:12,585 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_00598004-fb6d-4741-b799-d0d89d23b683/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 ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e73cce99fb85a27def70d0b47ca7f846df8b34e4 [2018-12-09 16:20:12,603 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 16:20:12,612 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 16:20:12,615 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 16:20:12,616 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 16:20:12,616 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 16:20:12,617 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/../../sv-benchmarks/c/bitvector/jain_5_true-unreach-call_true-no-overflow.i [2018-12-09 16:20:12,661 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/data/c582cde5c/861041ad99bf42e4b6e214639c4e808f/FLAGda8332bdd [2018-12-09 16:20:13,001 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 16:20:13,002 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/sv-benchmarks/c/bitvector/jain_5_true-unreach-call_true-no-overflow.i [2018-12-09 16:20:13,005 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/data/c582cde5c/861041ad99bf42e4b6e214639c4e808f/FLAGda8332bdd [2018-12-09 16:20:13,415 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/data/c582cde5c/861041ad99bf42e4b6e214639c4e808f [2018-12-09 16:20:13,417 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 16:20:13,418 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 16:20:13,419 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:13,419 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 16:20:13,422 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 16:20:13,422 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,425 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@49e0d67 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13, skipping insertion in model container [2018-12-09 16:20:13,425 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,431 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 16:20:13,443 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 16:20:13,528 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:13,530 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 16:20:13,538 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 16:20:13,546 INFO L195 MainTranslator]: Completed translation [2018-12-09 16:20:13,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13 WrapperNode [2018-12-09 16:20:13,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 16:20:13,546 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:13,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 16:20:13,546 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 16:20:13,553 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,561 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 16:20:13,561 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 16:20:13,561 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 16:20:13,561 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 16:20:13,566 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,567 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,567 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,569 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,572 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,572 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... [2018-12-09 16:20:13,573 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 16:20:13,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 16:20:13,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 16:20:13,573 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 16:20:13,574 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/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 [2018-12-09 16:20:13,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 16:20:13,638 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 16:20:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 16:20:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 16:20:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 16:20:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 16:20:13,639 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-12-09 16:20:13,639 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-12-09 16:20:13,715 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 16:20:13,715 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 16:20:13,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:13 BoogieIcfgContainer [2018-12-09 16:20:13,716 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 16:20:13,716 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 16:20:13,716 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 16:20:13,719 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 16:20:13,719 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 04:20:13" (1/3) ... [2018-12-09 16:20:13,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff1d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:13, skipping insertion in model container [2018-12-09 16:20:13,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 04:20:13" (2/3) ... [2018-12-09 16:20:13,720 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ff1d97c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 04:20:13, skipping insertion in model container [2018-12-09 16:20:13,720 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:13" (3/3) ... [2018-12-09 16:20:13,721 INFO L112 eAbstractionObserver]: Analyzing ICFG jain_5_true-unreach-call_true-no-overflow.i [2018-12-09 16:20:13,727 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 16:20:13,731 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 16:20:13,741 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 16:20:13,759 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 16:20:13,759 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 16:20:13,759 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 16:20:13,759 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 16:20:13,759 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 16:20:13,760 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 16:20:13,760 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 16:20:13,760 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 16:20:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-12-09 16:20:13,778 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-09 16:20:13,778 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:20:13,778 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:20:13,780 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:20:13,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:20:13,783 INFO L82 PathProgramCache]: Analyzing trace with hash -13144129, now seen corresponding path program 1 times [2018-12-09 16:20:13,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:20:13,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:13,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:20:13,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:13,813 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:20:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:20:13,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:20:13,921 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 16:20:13,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 16:20:13,922 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:20:13,924 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:20:13,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:20:13,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:20:13,933 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 6 states. [2018-12-09 16:20:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:20:13,994 INFO L93 Difference]: Finished difference Result 33 states and 45 transitions. [2018-12-09 16:20:13,994 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-09 16:20:13,995 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2018-12-09 16:20:13,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:20:13,999 INFO L225 Difference]: With dead ends: 33 [2018-12-09 16:20:14,000 INFO L226 Difference]: Without dead ends: 20 [2018-12-09 16:20:14,002 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-12-09 16:20:14,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-09 16:20:14,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 19. [2018-12-09 16:20:14,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-12-09 16:20:14,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2018-12-09 16:20:14,023 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 10 [2018-12-09 16:20:14,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:20:14,023 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2018-12-09 16:20:14,023 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:20:14,023 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2018-12-09 16:20:14,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2018-12-09 16:20:14,023 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 16:20:14,024 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 16:20:14,024 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 16:20:14,024 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:20:14,024 INFO L82 PathProgramCache]: Analyzing trace with hash 327764987, now seen corresponding path program 1 times [2018-12-09 16:20:14,024 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 16:20:14,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:14,025 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 16:20:14,025 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 16:20:14,025 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 16:20:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 16:20:14,099 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 16:20:14,099 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 16:20:14,099 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 16:20:14,100 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 17 with the following transitions: [2018-12-09 16:20:14,101 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [20], [23], [25], [28], [30], [31], [32], [33], [35], [36] [2018-12-09 16:20:14,120 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 16:20:14,120 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 16:20:14,209 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-12-09 16:20:14,210 INFO L272 AbstractInterpreter]: Visited 12 different actions 27 times. Merged at 2 different actions 5 times. Never widened. Performed 55 root evaluator evaluations with a maximum evaluation depth of 6. Performed 55 inverse root evaluator evaluations with a maximum inverse evaluation depth of 6. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-12-09 16:20:14,214 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 16:20:14,214 INFO L401 sIntCurrentIteration]: Generating AbsInt predicates [2018-12-09 16:20:14,242 INFO L227 lantSequenceWeakener]: Weakened 5 states. On average, predicates are now at 70% of their original sizes. [2018-12-09 16:20:14,243 INFO L416 sIntCurrentIteration]: Unifying AI predicates [2018-12-09 16:20:14,258 INFO L418 sIntCurrentIteration]: We unified 15 AI predicates to 15 [2018-12-09 16:20:14,259 INFO L427 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-12-09 16:20:14,259 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-12-09 16:20:14,259 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [8] total 12 [2018-12-09 16:20:14,259 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 16:20:14,260 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 16:20:14,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 16:20:14,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2018-12-09 16:20:14,260 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 6 states. [2018-12-09 16:20:14,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 16:20:14,294 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-12-09 16:20:14,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 16:20:14,294 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 16 [2018-12-09 16:20:14,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 16:20:14,295 INFO L225 Difference]: With dead ends: 19 [2018-12-09 16:20:14,295 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 16:20:14,295 INFO L631 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2018-12-09 16:20:14,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 16:20:14,295 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 16:20:14,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 16:20:14,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 16:20:14,296 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2018-12-09 16:20:14,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 16:20:14,296 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 16:20:14,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 16:20:14,296 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 16:20:14,296 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 16:20:14,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 16:20:14,324 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 16:20:14,324 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 16:20:14,324 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 16:20:14,324 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 10 27) the Hoare annotation is: true [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 10 27) no Hoare annotation was computed. [2018-12-09 16:20:14,324 INFO L444 ceAbstractionStarter]: At program point L24(line 24) the Hoare annotation is: (and (= (mod main_~x~0 4) 0) (= (mod main_~y~0 4) 0)) [2018-12-09 16:20:14,324 INFO L444 ceAbstractionStarter]: At program point L24-1(lines 18 25) the Hoare annotation is: (and (= (mod main_~x~0 4) 0) (= (mod main_~y~0 4) 0)) [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 25) no Hoare annotation was computed. [2018-12-09 16:20:14,324 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 10 27) no Hoare annotation was computed. [2018-12-09 16:20:14,325 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 4 9) the Hoare annotation is: true [2018-12-09 16:20:14,325 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2018-12-09 16:20:14,325 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 4 9) no Hoare annotation was computed. [2018-12-09 16:20:14,325 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2018-12-09 16:20:14,325 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2018-12-09 16:20:14,325 INFO L448 ceAbstractionStarter]: For program point L5-2(lines 4 9) no Hoare annotation was computed. [2018-12-09 16:20:14,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 04:20:14 BoogieIcfgContainer [2018-12-09 16:20:14,329 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 16:20:14,330 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 16:20:14,330 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 16:20:14,330 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 16:20:14,330 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 04:20:13" (3/4) ... [2018-12-09 16:20:14,332 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 16:20:14,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 16:20:14,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 16:20:14,335 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-12-09 16:20:14,337 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-12-09 16:20:14,337 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 16:20:14,337 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 16:20:14,358 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_00598004-fb6d-4741-b799-d0d89d23b683/bin-2019/utaipan/witness.graphml [2018-12-09 16:20:14,358 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 16:20:14,359 INFO L168 Benchmark]: Toolchain (without parser) took 941.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 956.7 MB in the beginning and 1.0 GB in the end (delta: -76.3 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:14,359 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:14,360 INFO L168 Benchmark]: CACSL2BoogieTranslator took 127.02 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:14,360 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.64 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:14,360 INFO L168 Benchmark]: Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:14,360 INFO L168 Benchmark]: RCFGBuilder took 142.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:14,360 INFO L168 Benchmark]: TraceAbstraction took 613.44 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: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. [2018-12-09 16:20:14,361 INFO L168 Benchmark]: Witness Printer took 28.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 16:20:14,362 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 127.02 ms. Allocated memory is still 1.0 GB. Free memory was 956.7 MB in the beginning and 945.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 14.64 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory is still 945.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 142.69 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 124.8 MB). Free memory was 945.9 MB in the beginning and 1.1 GB in the end (delta: -159.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 613.44 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: 72.0 MB). Peak memory consumption was 72.0 MB. Max. memory is 11.5 GB. * Witness Printer took 28.54 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: x % 4 == 0 && y % 4 == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 17 SDtfs, 10 SDslu, 60 SDs, 0 SdLazy, 20 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=1, 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, 0.8 AbsIntWeakeningRatio, 0.4 AbsIntAvgWeakeningVarsNumRemoved, 0.3333333333333333 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 13 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 54 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 24 ConstructedInterpolants, 0 QuantifiedInterpolants, 1392 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 1 PerfectInterpolantSequences, 1/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...