java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/array-examples/standard_copy5_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-09 05:28:01,674 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-09 05:28:01,676 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-09 05:28:01,687 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-09 05:28:01,696 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-09 05:28:01,697 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-09 05:28:01,698 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-09 05:28:01,699 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-09 05:28:01,700 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-09 05:28:01,701 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-09 05:28:01,703 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-09 05:28:01,705 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-09 05:28:01,706 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-09 05:28:01,707 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-09 05:28:01,708 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-09 05:28:01,709 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-09 05:28:01,711 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-09 05:28:01,714 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-09 05:28:01,715 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-09 05:28:01,715 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-09 05:28:01,716 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-09 05:28:01,717 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-09 05:28:01,717 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-09 05:28:01,718 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-09 05:28:01,718 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-09 05:28:01,719 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-09 05:28:01,719 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-09 05:28:01,720 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-09 05:28:01,721 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-09 05:28:01,735 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-09 05:28:01,735 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-09 05:28:01,736 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-09 05:28:01,736 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-09 05:28:01,736 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-09 05:28:01,737 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-09 05:28:01,737 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-09 05:28:01,737 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-09 05:28:01,737 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-09 05:28:01,737 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-09 05:28:01,738 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-09 05:28:01,738 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-09 05:28:01,738 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-09 05:28:01,739 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-09 05:28:01,739 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-09 05:28:01,739 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-09 05:28:01,739 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-09 05:28:01,739 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-09 05:28:01,740 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-09 05:28:01,740 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-09 05:28:01,740 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-09 05:28:01,740 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-09 05:28:01,740 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-09 05:28:01,741 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-09 05:28:01,741 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-09 05:28:01,741 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-09 05:28:01,741 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-09 05:28:01,741 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-09 05:28:01,742 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-09 05:28:01,742 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-09 05:28:01,775 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-09 05:28:01,788 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-09 05:28:01,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-09 05:28:01,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-09 05:28:01,796 INFO L275 PluginConnector]: CDTParser initialized [2019-09-09 05:28:01,797 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-examples/standard_copy5_ground-1.i [2019-09-09 05:28:01,871 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5209ef5b/09b2449c9b2a416cafcaeef97eb28e81/FLAGb75fa0b10 [2019-09-09 05:28:02,336 INFO L306 CDTParser]: Found 1 translation units. [2019-09-09 05:28:02,337 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-examples/standard_copy5_ground-1.i [2019-09-09 05:28:02,343 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5209ef5b/09b2449c9b2a416cafcaeef97eb28e81/FLAGb75fa0b10 [2019-09-09 05:28:02,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d5209ef5b/09b2449c9b2a416cafcaeef97eb28e81 [2019-09-09 05:28:02,687 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-09 05:28:02,688 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-09 05:28:02,689 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-09 05:28:02,689 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-09 05:28:02,693 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-09 05:28:02,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:02,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3da81aa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02, skipping insertion in model container [2019-09-09 05:28:02,697 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:02,704 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-09 05:28:02,720 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-09 05:28:02,916 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:28:02,919 INFO L188 MainTranslator]: Completed pre-run [2019-09-09 05:28:02,942 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-09 05:28:02,959 INFO L192 MainTranslator]: Completed translation [2019-09-09 05:28:02,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02 WrapperNode [2019-09-09 05:28:02,960 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-09 05:28:02,960 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-09 05:28:02,960 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-09 05:28:02,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-09 05:28:03,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,061 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,082 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,089 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,091 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... [2019-09-09 05:28:03,093 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-09 05:28:03,094 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-09 05:28:03,094 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-09 05:28:03,094 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-09 05:28:03,095 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-09-09 05:28:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-09 05:28:03,156 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-09 05:28:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-09 05:28:03,157 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-09 05:28:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-09 05:28:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-09 05:28:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-09 05:28:03,157 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-09 05:28:03,158 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-09 05:28:03,499 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-09 05:28:03,500 INFO L283 CfgBuilder]: Removed 7 assume(true) statements. [2019-09-09 05:28:03,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:28:03 BoogieIcfgContainer [2019-09-09 05:28:03,508 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-09 05:28:03,509 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-09 05:28:03,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-09 05:28:03,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-09 05:28:03,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.09 05:28:02" (1/3) ... [2019-09-09 05:28:03,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138a5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:28:03, skipping insertion in model container [2019-09-09 05:28:03,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.09 05:28:02" (2/3) ... [2019-09-09 05:28:03,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3138a5be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.09 05:28:03, skipping insertion in model container [2019-09-09 05:28:03,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.09 05:28:03" (3/3) ... [2019-09-09 05:28:03,516 INFO L109 eAbstractionObserver]: Analyzing ICFG standard_copy5_ground-1.i [2019-09-09 05:28:03,524 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-09 05:28:03,531 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-09 05:28:03,545 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-09 05:28:03,567 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-09 05:28:03,567 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-09 05:28:03,567 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-09 05:28:03,568 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-09 05:28:03,568 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-09 05:28:03,568 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-09 05:28:03,568 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-09 05:28:03,568 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-09 05:28:03,582 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states. [2019-09-09 05:28:03,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-09 05:28:03,591 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:03,592 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:03,594 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:03,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:03,600 INFO L82 PathProgramCache]: Analyzing trace with hash -2095174276, now seen corresponding path program 1 times [2019-09-09 05:28:03,603 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:03,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:03,646 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:03,646 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:03,646 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:28:03,749 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:03,749 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-09 05:28:03,749 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:03,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:28:03,767 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:28:03,768 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:03,770 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 2 states. [2019-09-09 05:28:03,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:03,790 INFO L93 Difference]: Finished difference Result 39 states and 45 transitions. [2019-09-09 05:28:03,790 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:28:03,792 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 23 [2019-09-09 05:28:03,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:03,801 INFO L225 Difference]: With dead ends: 39 [2019-09-09 05:28:03,802 INFO L226 Difference]: Without dead ends: 34 [2019-09-09 05:28:03,804 INFO L628 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 [2019-09-09 05:28:03,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-09-09 05:28:03,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-09-09 05:28:03,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-09-09 05:28:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2019-09-09 05:28:03,846 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 23 [2019-09-09 05:28:03,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:03,847 INFO L475 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2019-09-09 05:28:03,847 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:28:03,847 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2019-09-09 05:28:03,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2019-09-09 05:28:03,848 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:03,849 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:03,849 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:03,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:03,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1625097866, now seen corresponding path program 1 times [2019-09-09 05:28:03,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:03,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:03,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:03,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:03,852 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:03,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-09 05:28:03,981 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:03,981 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:28:03,981 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:03,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:28:03,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:28:03,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:03,988 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand 3 states. [2019-09-09 05:28:04,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:04,025 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2019-09-09 05:28:04,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:28:04,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 23 [2019-09-09 05:28:04,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:04,028 INFO L225 Difference]: With dead ends: 36 [2019-09-09 05:28:04,028 INFO L226 Difference]: Without dead ends: 36 [2019-09-09 05:28:04,029 INFO L628 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 [2019-09-09 05:28:04,030 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-09-09 05:28:04,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2019-09-09 05:28:04,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2019-09-09 05:28:04,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 41 transitions. [2019-09-09 05:28:04,043 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 41 transitions. Word has length 23 [2019-09-09 05:28:04,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:04,043 INFO L475 AbstractCegarLoop]: Abstraction has 35 states and 41 transitions. [2019-09-09 05:28:04,044 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:28:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 41 transitions. [2019-09-09 05:28:04,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-09 05:28:04,045 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:04,045 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:04,046 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:04,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:04,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1623092332, now seen corresponding path program 1 times [2019-09-09 05:28:04,048 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:04,049 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:04,049 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:04,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:04,051 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:04,160 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-09 05:28:04,161 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-09 05:28:04,161 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-09 05:28:04,161 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:04,162 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-09 05:28:04,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-09 05:28:04,165 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-09 05:28:04,165 INFO L87 Difference]: Start difference. First operand 35 states and 41 transitions. Second operand 3 states. [2019-09-09 05:28:04,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:04,247 INFO L93 Difference]: Finished difference Result 45 states and 51 transitions. [2019-09-09 05:28:04,248 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-09 05:28:04,248 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-09-09 05:28:04,249 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:04,249 INFO L225 Difference]: With dead ends: 45 [2019-09-09 05:28:04,250 INFO L226 Difference]: Without dead ends: 45 [2019-09-09 05:28:04,250 INFO L628 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 [2019-09-09 05:28:04,251 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2019-09-09 05:28:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 40. [2019-09-09 05:28:04,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2019-09-09 05:28:04,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2019-09-09 05:28:04,257 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 25 [2019-09-09 05:28:04,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:04,257 INFO L475 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2019-09-09 05:28:04,258 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-09 05:28:04,258 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2019-09-09 05:28:04,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-09-09 05:28:04,261 INFO L391 BasicCegarLoop]: Found error trace [2019-09-09 05:28:04,261 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-09 05:28:04,261 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-09 05:28:04,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:04,261 INFO L82 PathProgramCache]: Analyzing trace with hash -1928668694, now seen corresponding path program 1 times [2019-09-09 05:28:04,262 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-09 05:28:04,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:04,263 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-09 05:28:04,263 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-09 05:28:04,263 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-09 05:28:04,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-09 05:28:04,357 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-09 05:28:04,358 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-09 05:28:04,358 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-09 05:28:04,359 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 36 with the following transitions: [2019-09-09 05:28:04,361 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [25], [27], [29], [33], [39], [41], [43], [47], [53], [55], [57], [61], [67], [69], [71], [75], [81], [83], [85], [89], [97], [107], [110], [112], [118], [119], [120], [122] [2019-09-09 05:28:04,410 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-09 05:28:04,410 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-09 05:28:04,473 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-09 05:28:04,474 INFO L272 AbstractInterpreter]: Visited 6 different actions 6 times. Never merged. Never widened. Performed 15 root evaluator evaluations with a maximum evaluation depth of 0. Performed 15 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 41 variables. [2019-09-09 05:28:04,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-09 05:28:04,482 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-09 05:28:04,532 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-09-09 05:28:04,532 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-09 05:28:04,535 INFO L420 sIntCurrentIteration]: We unified 34 AI predicates to 34 [2019-09-09 05:28:04,535 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-09 05:28:04,536 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-09 05:28:04,536 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 4 [2019-09-09 05:28:04,536 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-09 05:28:04,538 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-09 05:28:04,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-09 05:28:04,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:04,539 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 2 states. [2019-09-09 05:28:04,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-09 05:28:04,540 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-09-09 05:28:04,541 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-09 05:28:04,541 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 35 [2019-09-09 05:28:04,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-09 05:28:04,541 INFO L225 Difference]: With dead ends: 6 [2019-09-09 05:28:04,541 INFO L226 Difference]: Without dead ends: 0 [2019-09-09 05:28:04,542 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-09 05:28:04,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-09 05:28:04,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-09 05:28:04,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-09 05:28:04,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-09 05:28:04,543 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2019-09-09 05:28:04,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-09 05:28:04,544 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-09 05:28:04,544 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-09 05:28:04,545 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-09 05:28:04,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-09 05:28:04,551 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.09 05:28:04 BoogieIcfgContainer [2019-09-09 05:28:04,551 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-09 05:28:04,555 INFO L168 Benchmark]: Toolchain (without parser) took 1864.57 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 90.4 MB in the beginning and 102.6 MB in the end (delta: -12.1 MB). Peak memory consumption was 55.0 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:04,556 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-09-09 05:28:04,557 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 134.2 MB. Free memory was 90.4 MB in the beginning and 79.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:04,562 INFO L168 Benchmark]: Boogie Preprocessor took 133.04 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 79.8 MB in the beginning and 176.4 MB in the end (delta: -96.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:04,563 INFO L168 Benchmark]: RCFGBuilder took 414.75 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 158.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:04,564 INFO L168 Benchmark]: TraceAbstraction took 1041.81 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 102.6 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. [2019-09-09 05:28:04,575 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory is still 108.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.82 ms. Allocated memory is still 134.2 MB. Free memory was 90.4 MB in the beginning and 79.8 MB in the end (delta: 10.6 MB). Peak memory consumption was 10.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 133.04 ms. Allocated memory was 134.2 MB in the beginning and 201.3 MB in the end (delta: 67.1 MB). Free memory was 79.8 MB in the beginning and 176.4 MB in the end (delta: -96.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 414.75 ms. Allocated memory is still 201.3 MB. Free memory was 176.4 MB in the beginning and 158.0 MB in the end (delta: 18.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1041.81 ms. Allocated memory is still 201.3 MB. Free memory was 157.1 MB in the beginning and 102.6 MB in the end (delta: 54.5 MB). Peak memory consumption was 54.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 2]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 39 locations, 1 error locations. SAFE Result, 0.9s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 118 SDtfs, 6 SDslu, 56 SDs, 0 SdLazy, 30 SolverSat, 8 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, 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, 0.9044117647058824 AbsIntWeakeningRatio, 1.0588235294117647 AbsIntAvgWeakeningVarsNumRemoved, 0.17647058823529413 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 6 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 106 NumberOfCodeBlocks, 106 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2996 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 6/7 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...