java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf -i ../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i -------------------------------------------------------------------------------- This is Ultimate 0.1.23-8c3fbe1 [2018-10-22 16:09:32,742 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 16:09:32,745 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 16:09:32,765 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 16:09:32,765 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 16:09:32,766 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 16:09:32,768 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 16:09:32,770 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 16:09:32,773 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 16:09:32,776 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 16:09:32,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 16:09:32,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 16:09:32,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 16:09:32,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 16:09:32,782 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 16:09:32,786 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 16:09:32,787 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 16:09:32,797 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 16:09:32,802 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 16:09:32,804 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 16:09:32,808 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 16:09:32,809 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 16:09:32,813 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 16:09:32,815 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 16:09:32,815 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 16:09:32,816 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 16:09:32,817 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 16:09:32,817 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 16:09:32,820 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 16:09:32,822 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 16:09:32,823 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 16:09:32,823 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 16:09:32,823 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 16:09:32,824 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 16:09:32,825 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 16:09:32,826 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 16:09:32,826 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default.epf [2018-10-22 16:09:32,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 16:09:32,854 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 16:09:32,855 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 16:09:32,858 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 16:09:32,858 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 16:09:32,858 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 16:09:32,858 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 16:09:32,858 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 16:09:32,859 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-22 16:09:32,859 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 16:09:32,859 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 16:09:32,859 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 16:09:32,860 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 16:09:32,861 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 16:09:32,863 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 16:09:32,863 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 16:09:32,864 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 16:09:32,864 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 16:09:32,864 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 16:09:32,864 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 16:09:32,864 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 16:09:32,865 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 16:09:32,865 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 16:09:32,865 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 16:09:32,866 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 16:09:32,866 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 16:09:32,866 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 16:09:32,866 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-22 16:09:32,866 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-22 16:09:32,931 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 16:09:32,950 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 16:09:32,955 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 16:09:32,957 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 16:09:32,957 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 16:09:32,958 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 16:09:33,022 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/43f305e29/f62d2f8511fd407994a869120595b2a9/FLAG84852418d [2018-10-22 16:09:33,514 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 16:09:33,516 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-new/count_by_1_true-unreach-call_true-termination.i [2018-10-22 16:09:33,523 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/43f305e29/f62d2f8511fd407994a869120595b2a9/FLAG84852418d [2018-10-22 16:09:33,544 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/43f305e29/f62d2f8511fd407994a869120595b2a9 [2018-10-22 16:09:33,558 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 16:09:33,560 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-22 16:09:33,561 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 16:09:33,561 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 16:09:33,567 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 16:09:33,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6609cc8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33, skipping insertion in model container [2018-10-22 16:09:33,572 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,585 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 16:09:33,611 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 16:09:33,792 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:09:33,796 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 16:09:33,812 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 16:09:33,829 INFO L193 MainTranslator]: Completed translation [2018-10-22 16:09:33,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33 WrapperNode [2018-10-22 16:09:33,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 16:09:33,831 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 16:09:33,831 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 16:09:33,831 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 16:09:33,840 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,846 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,852 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 16:09:33,852 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 16:09:33,852 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 16:09:33,853 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 16:09:33,862 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,862 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,863 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,866 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,873 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... [2018-10-22 16:09:33,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 16:09:33,875 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 16:09:33,875 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 16:09:33,875 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 16:09:33,876 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-22 16:09:33,938 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 16:09:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 16:09:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 16:09:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 16:09:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 16:09:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 16:09:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 16:09:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 16:09:34,289 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 16:09:34,289 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:09:34 BoogieIcfgContainer [2018-10-22 16:09:34,289 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 16:09:34,290 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 16:09:34,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 16:09:34,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 16:09:34,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 04:09:33" (1/3) ... [2018-10-22 16:09:34,295 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6fb3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:09:34, skipping insertion in model container [2018-10-22 16:09:34,295 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 04:09:33" (2/3) ... [2018-10-22 16:09:34,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a6fb3b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 04:09:34, skipping insertion in model container [2018-10-22 16:09:34,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 04:09:34" (3/3) ... [2018-10-22 16:09:34,298 INFO L112 eAbstractionObserver]: Analyzing ICFG count_by_1_true-unreach-call_true-termination.i [2018-10-22 16:09:34,308 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 16:09:34,316 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 16:09:34,334 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 16:09:34,368 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 16:09:34,369 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 16:09:34,369 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 16:09:34,369 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 16:09:34,369 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 16:09:34,370 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 16:09:34,370 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 16:09:34,370 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 16:09:34,370 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 16:09:34,388 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-10-22 16:09:34,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-10-22 16:09:34,395 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:09:34,396 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:09:34,398 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:09:34,404 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:09:34,404 INFO L82 PathProgramCache]: Analyzing trace with hash 563245249, now seen corresponding path program 1 times [2018-10-22 16:09:34,407 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:09:34,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:09:34,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,459 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:09:34,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:09:34,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:09:34,511 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:09:34,511 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-22 16:09:34,511 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:09:34,515 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-22 16:09:34,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-22 16:09:34,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 16:09:34,529 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 2 states. [2018-10-22 16:09:34,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:09:34,552 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-10-22 16:09:34,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-22 16:09:34,553 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2018-10-22 16:09:34,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:09:34,562 INFO L225 Difference]: With dead ends: 32 [2018-10-22 16:09:34,562 INFO L226 Difference]: Without dead ends: 13 [2018-10-22 16:09:34,566 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-22 16:09:34,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-10-22 16:09:34,597 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-10-22 16:09:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-10-22 16:09:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2018-10-22 16:09:34,601 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 10 [2018-10-22 16:09:34,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:09:34,602 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2018-10-22 16:09:34,602 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-22 16:09:34,602 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2018-10-22 16:09:34,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-10-22 16:09:34,603 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:09:34,603 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:09:34,604 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:09:34,604 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:09:34,604 INFO L82 PathProgramCache]: Analyzing trace with hash -496423, now seen corresponding path program 1 times [2018-10-22 16:09:34,605 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:09:34,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,606 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:09:34,606 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,606 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:09:34,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:09:34,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:09:34,694 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 16:09:34,694 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-22 16:09:34,695 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:09:34,700 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-22 16:09:34,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-22 16:09:34,703 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 16:09:34,703 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 3 states. [2018-10-22 16:09:34,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:09:34,782 INFO L93 Difference]: Finished difference Result 21 states and 21 transitions. [2018-10-22 16:09:34,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-22 16:09:34,783 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-10-22 16:09:34,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:09:34,784 INFO L225 Difference]: With dead ends: 21 [2018-10-22 16:09:34,784 INFO L226 Difference]: Without dead ends: 16 [2018-10-22 16:09:34,786 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-22 16:09:34,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-10-22 16:09:34,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2018-10-22 16:09:34,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-10-22 16:09:34,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2018-10-22 16:09:34,793 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 11 [2018-10-22 16:09:34,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:09:34,795 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2018-10-22 16:09:34,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-22 16:09:34,795 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2018-10-22 16:09:34,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-10-22 16:09:34,796 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 16:09:34,796 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 16:09:34,797 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 16:09:34,797 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:09:34,797 INFO L82 PathProgramCache]: Analyzing trace with hash -1177044387, now seen corresponding path program 1 times [2018-10-22 16:09:34,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 16:09:34,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,799 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 16:09:34,799 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 16:09:34,799 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 16:09:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 16:09:34,957 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 16:09:34,957 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 16:09:34,958 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 16:09:34,959 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 15 with the following transitions: [2018-10-22 16:09:34,962 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [11], [13], [15], [22], [25], [27], [33], [34], [35], [37] [2018-10-22 16:09:35,046 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 16:09:35,047 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 16:09:35,275 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 16:09:35,277 INFO L272 AbstractInterpreter]: Visited 12 different actions 36 times. Merged at 3 different actions 18 times. Widened at 1 different actions 2 times. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2018-10-22 16:09:35,291 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 16:09:35,291 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 16:09:35,359 INFO L232 lantSequenceWeakener]: Weakened 1 states. On average, predicates are now at 50% of their original sizes. [2018-10-22 16:09:35,359 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 16:09:35,493 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 16:09:35,495 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 16:09:35,495 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [4] total 9 [2018-10-22 16:09:35,495 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 16:09:35,496 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-22 16:09:35,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-22 16:09:35,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-10-22 16:09:35,500 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand 7 states. [2018-10-22 16:09:35,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 16:09:35,680 INFO L93 Difference]: Finished difference Result 15 states and 15 transitions. [2018-10-22 16:09:35,680 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 16:09:35,681 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 14 [2018-10-22 16:09:35,681 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 16:09:35,681 INFO L225 Difference]: With dead ends: 15 [2018-10-22 16:09:35,681 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 16:09:35,682 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 14 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2018-10-22 16:09:35,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 16:09:35,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 16:09:35,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 16:09:35,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 16:09:35,684 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-10-22 16:09:35,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 16:09:35,684 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 16:09:35,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-22 16:09:35,684 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 16:09:35,684 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 16:09:35,689 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 16:09:35,849 WARN L179 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 13 DAG size of output: 8 [2018-10-22 16:09:35,856 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 16:09:35,857 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:09:35,857 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 16:09:35,857 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 16:09:35,858 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 16:09:35,858 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 16:09:35,858 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 15) the Hoare annotation is: true [2018-10-22 16:09:35,858 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 15) no Hoare annotation was computed. [2018-10-22 16:09:35,858 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-10-22 16:09:35,858 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 15) no Hoare annotation was computed. [2018-10-22 16:09:35,859 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-10-22 16:09:35,859 INFO L425 ceAbstractionStarter]: For program point L12-3(line 12) no Hoare annotation was computed. [2018-10-22 16:09:35,859 INFO L421 ceAbstractionStarter]: At program point L12-4(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= 0 .cse0) (<= .cse0 2000000))) [2018-10-22 16:09:35,859 INFO L421 ceAbstractionStarter]: At program point L12-5(line 12) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= .cse0 2000000) (<= 2000000 .cse0))) [2018-10-22 16:09:35,860 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 16:09:35,860 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 16:09:35,860 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:09:35,860 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 16:09:35,860 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 16:09:35,861 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 16:09:35,870 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 04:09:35 BoogieIcfgContainer [2018-10-22 16:09:35,870 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 16:09:35,871 INFO L168 Benchmark]: Toolchain (without parser) took 2312.97 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -714.1 MB). Peak memory consumption was 32.5 MB. Max. memory is 7.1 GB. [2018-10-22 16:09:35,873 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 16:09:35,874 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2018-10-22 16:09:35,875 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 16:09:35,876 INFO L168 Benchmark]: Boogie Preprocessor took 22.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-22 16:09:35,876 INFO L168 Benchmark]: RCFGBuilder took 414.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -796.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2018-10-22 16:09:35,877 INFO L168 Benchmark]: TraceAbstraction took 1579.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. [2018-10-22 16:09:35,882 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.5 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 269.68 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.4 GB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 21.21 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.59 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * RCFGBuilder took 414.45 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 746.6 MB). Free memory was 1.4 GB in the beginning and 2.2 GB in the end (delta: -796.9 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1579.78 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 72.3 MB). Peak memory consumption was 72.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 12]: Loop Invariant Derived loop invariant: 0 <= 2 * i && 2 * i <= 2000000 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.5s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 6 SDslu, 29 SDs, 0 SdLazy, 9 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 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, 0.3s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.8846153846153846 AbsIntWeakeningRatio, 0.3076923076923077 AbsIntAvgWeakeningVarsNumRemoved, 0.46153846153846156 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 11 NumberOfFragments, 27 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 19 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 520 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...