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/float-benchs/inv_Newton.c.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-10 01:35:36,693 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-10 01:35:36,696 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-10 01:35:36,707 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-10 01:35:36,708 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-10 01:35:36,709 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-10 01:35:36,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-10 01:35:36,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-10 01:35:36,713 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-10 01:35:36,714 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-10 01:35:36,715 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-10 01:35:36,716 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-10 01:35:36,717 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-10 01:35:36,718 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-10 01:35:36,719 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-10 01:35:36,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-10 01:35:36,720 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-10 01:35:36,721 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-10 01:35:36,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-10 01:35:36,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-10 01:35:36,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-10 01:35:36,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-10 01:35:36,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-10 01:35:36,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-10 01:35:36,731 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-10 01:35:36,734 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-10 01:35:36,735 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-10 01:35:36,736 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-10 01:35:36,736 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-10 01:35:36,737 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-10 01:35:36,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-10 01:35:36,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-10 01:35:36,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-10 01:35:36,739 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-10 01:35:36,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-10 01:35:36,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-10 01:35:36,741 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 [2019-09-10 01:35:36,755 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-10 01:35:36,756 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-10 01:35:36,756 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-10 01:35:36,756 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-10 01:35:36,757 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-10 01:35:36,757 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-10 01:35:36,757 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-10 01:35:36,757 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-10 01:35:36,758 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-10 01:35:36,758 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-10 01:35:36,758 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-10 01:35:36,759 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-10 01:35:36,759 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-10 01:35:36,759 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-10 01:35:36,759 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-10 01:35:36,759 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-10 01:35:36,760 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-10 01:35:36,760 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-10 01:35:36,760 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-10 01:35:36,760 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-10 01:35:36,760 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-10 01:35:36,761 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-10 01:35:36,761 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-10 01:35:36,761 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-10 01:35:36,761 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-10 01:35:36,761 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-10 01:35:36,762 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-10 01:35:36,762 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-10 01:35:36,762 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-10 01:35:36,762 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-10 01:35:36,789 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-10 01:35:36,801 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-10 01:35:36,804 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-10 01:35:36,806 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-10 01:35:36,806 INFO L275 PluginConnector]: CDTParser initialized [2019-09-10 01:35:36,807 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/float-benchs/inv_Newton.c.p+cfa-reducer.c [2019-09-10 01:35:36,879 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24d59f4/706c3c27c7144be0a4f09a066fcdd171/FLAG38fa3661f [2019-09-10 01:35:37,275 INFO L306 CDTParser]: Found 1 translation units. [2019-09-10 01:35:37,276 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/float-benchs/inv_Newton.c.p+cfa-reducer.c [2019-09-10 01:35:37,282 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24d59f4/706c3c27c7144be0a4f09a066fcdd171/FLAG38fa3661f [2019-09-10 01:35:37,650 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8f24d59f4/706c3c27c7144be0a4f09a066fcdd171 [2019-09-10 01:35:37,663 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-10 01:35:37,665 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-10 01:35:37,669 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:37,669 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-10 01:35:37,673 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-10 01:35:37,674 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:37" (1/1) ... [2019-09-10 01:35:37,677 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45625c42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:37, skipping insertion in model container [2019-09-10 01:35:37,677 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.09 01:35:37" (1/1) ... [2019-09-10 01:35:37,685 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-10 01:35:37,711 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-10 01:35:37,960 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:37,964 INFO L188 MainTranslator]: Completed pre-run [2019-09-10 01:35:38,098 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-10 01:35:38,124 INFO L192 MainTranslator]: Completed translation [2019-09-10 01:35:38,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38 WrapperNode [2019-09-10 01:35:38,125 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-10 01:35:38,125 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-10 01:35:38,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-10 01:35:38,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-10 01:35:38,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,150 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,150 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,160 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (1/1) ... [2019-09-10 01:35:38,168 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-10 01:35:38,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-10 01:35:38,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-10 01:35:38,171 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-10 01:35:38,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (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 [2019-09-10 01:35:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-10 01:35:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-10 01:35:38,225 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-10 01:35:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-10 01:35:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_double [2019-09-10 01:35:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-10 01:35:38,225 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure inv [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-10 01:35:38,226 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-10 01:35:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-09-10 01:35:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-10 01:35:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-10 01:35:38,227 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-10 01:35:38,471 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-10 01:35:38,471 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-10 01:35:38,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:35:38 BoogieIcfgContainer [2019-09-10 01:35:38,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-10 01:35:38,474 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-10 01:35:38,474 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-10 01:35:38,477 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-10 01:35:38,478 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.09 01:35:37" (1/3) ... [2019-09-10 01:35:38,478 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bcfa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:35:38, skipping insertion in model container [2019-09-10 01:35:38,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.09 01:35:38" (2/3) ... [2019-09-10 01:35:38,479 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74bcfa06 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.09 01:35:38, skipping insertion in model container [2019-09-10 01:35:38,479 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.09 01:35:38" (3/3) ... [2019-09-10 01:35:38,481 INFO L109 eAbstractionObserver]: Analyzing ICFG inv_Newton.c.p+cfa-reducer.c [2019-09-10 01:35:38,492 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-10 01:35:38,503 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-10 01:35:38,526 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-10 01:35:38,556 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-10 01:35:38,557 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-10 01:35:38,557 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-10 01:35:38,557 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-10 01:35:38,557 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-10 01:35:38,558 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-10 01:35:38,558 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-10 01:35:38,558 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-10 01:35:38,574 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2019-09-10 01:35:38,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-09-10 01:35:38,584 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:35:38,585 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:35:38,588 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:35:38,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:38,594 INFO L82 PathProgramCache]: Analyzing trace with hash 376866062, now seen corresponding path program 1 times [2019-09-10 01:35:38,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:35:38,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:38,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:38,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:38,651 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:35:38,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:35:38,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-10 01:35:38,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:35:38,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-10 01:35:38,790 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:35:38,794 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-10 01:35:38,806 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-10 01:35:38,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-10 01:35:38,808 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 3 states. [2019-09-10 01:35:38,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:35:38,838 INFO L93 Difference]: Finished difference Result 31 states and 40 transitions. [2019-09-10 01:35:38,841 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-10 01:35:38,843 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-09-10 01:35:38,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:35:38,854 INFO L225 Difference]: With dead ends: 31 [2019-09-10 01:35:38,854 INFO L226 Difference]: Without dead ends: 27 [2019-09-10 01:35:38,857 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 [2019-09-10 01:35:38,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-10 01:35:38,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 23. [2019-09-10 01:35:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2019-09-10 01:35:38,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2019-09-10 01:35:38,902 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 15 [2019-09-10 01:35:38,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:35:38,902 INFO L475 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2019-09-10 01:35:38,903 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-10 01:35:38,903 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2019-09-10 01:35:38,904 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:35:38,904 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:35:38,904 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:35:38,904 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:35:38,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:38,905 INFO L82 PathProgramCache]: Analyzing trace with hash 958542003, now seen corresponding path program 1 times [2019-09-10 01:35:38,906 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:35:38,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:38,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:38,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:38,911 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:35:38,956 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:35:38,956 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:35:38,957 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:35:38,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:38,970 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:35:38,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-10 01:35:39,005 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2019-09-10 01:35:39,007 INFO L207 CegarAbsIntRunner]: [0], [3], [6], [10], [14], [17], [19], [21], [30], [33], [36], [38], [41], [42], [59], [60], [64], [65], [66] [2019-09-10 01:35:39,053 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:35:39,053 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:35:39,126 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:35:39,128 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Performed 32 root evaluator evaluations with a maximum evaluation depth of 3. Performed 32 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 41 variables. [2019-09-10 01:35:39,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:39,131 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:35:39,171 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 95.56% of their original sizes. [2019-09-10 01:35:39,172 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:35:39,190 INFO L420 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-09-10 01:35:39,190 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:35:39,191 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:35:39,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:35:39,192 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:35:39,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:35:39,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:35:39,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:35:39,194 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand 4 states. [2019-09-10 01:35:39,207 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-10 01:35:39,211 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPGT has no precise implementation. [2019-09-10 01:35:39,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:35:39,237 INFO L93 Difference]: Finished difference Result 26 states and 30 transitions. [2019-09-10 01:35:39,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:35:39,238 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-09-10 01:35:39,238 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:35:39,239 INFO L225 Difference]: With dead ends: 26 [2019-09-10 01:35:39,239 INFO L226 Difference]: Without dead ends: 22 [2019-09-10 01:35:39,240 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:35:39,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-09-10 01:35:39,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-09-10 01:35:39,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-09-10 01:35:39,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 26 transitions. [2019-09-10 01:35:39,244 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 26 transitions. Word has length 19 [2019-09-10 01:35:39,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:35:39,244 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 26 transitions. [2019-09-10 01:35:39,244 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:35:39,244 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 26 transitions. [2019-09-10 01:35:39,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-10 01:35:39,245 INFO L391 BasicCegarLoop]: Found error trace [2019-09-10 01:35:39,245 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-10 01:35:39,246 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-10 01:35:39,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:39,246 INFO L82 PathProgramCache]: Analyzing trace with hash 194087736, now seen corresponding path program 1 times [2019-09-10 01:35:39,246 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-10 01:35:39,247 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:39,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:39,248 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-10 01:35:39,248 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-10 01:35:39,263 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2019-09-10 01:35:39,263 INFO L258 seRefinementStrategy]: Advancing trace checker [2019-09-10 01:35:39,263 INFO L170 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-09-10 01:35:39,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-10 01:35:39,299 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2019-09-10 01:35:39,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-10 01:35:39,323 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 20 with the following transitions: [2019-09-10 01:35:39,323 INFO L207 CegarAbsIntRunner]: [0], [10], [14], [17], [19], [21], [30], [33], [36], [38], [41], [42], [54], [56], [59], [60], [64], [65], [66] [2019-09-10 01:35:39,325 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-10 01:35:39,326 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-10 01:35:39,330 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator COMPLT has no precise implementation. [2019-09-10 01:35:39,332 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-10 01:35:39,332 INFO L272 AbstractInterpreter]: Visited 9 different actions 9 times. Never merged. Never widened. Performed 27 root evaluator evaluations with a maximum evaluation depth of 3. Performed 27 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Never found a fixpoint. Largest state had 41 variables. [2019-09-10 01:35:39,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-10 01:35:39,333 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-10 01:35:39,347 INFO L227 lantSequenceWeakener]: Weakened 7 states. On average, predicates are now at 95.56% of their original sizes. [2019-09-10 01:35:39,347 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-10 01:35:39,362 INFO L420 sIntCurrentIteration]: We unified 18 AI predicates to 18 [2019-09-10 01:35:39,362 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-10 01:35:39,363 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-10 01:35:39,363 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-10 01:35:39,363 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-10 01:35:39,364 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-10 01:35:39,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-10 01:35:39,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:35:39,365 INFO L87 Difference]: Start difference. First operand 22 states and 26 transitions. Second operand 4 states. [2019-09-10 01:35:39,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-10 01:35:39,377 INFO L93 Difference]: Finished difference Result 9 states and 8 transitions. [2019-09-10 01:35:39,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-10 01:35:39,377 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2019-09-10 01:35:39,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-10 01:35:39,378 INFO L225 Difference]: With dead ends: 9 [2019-09-10 01:35:39,378 INFO L226 Difference]: Without dead ends: 0 [2019-09-10 01:35:39,379 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-10 01:35:39,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-10 01:35:39,380 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-10 01:35:39,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-10 01:35:39,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-10 01:35:39,380 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-09-10 01:35:39,381 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-10 01:35:39,381 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-10 01:35:39,381 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-10 01:35:39,381 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-10 01:35:39,381 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-10 01:35:39,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.09 01:35:39 BoogieIcfgContainer [2019-09-10 01:35:39,386 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-10 01:35:39,388 INFO L168 Benchmark]: Toolchain (without parser) took 1722.91 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 90.8 MB in the beginning and 106.8 MB in the end (delta: -16.0 MB). Peak memory consumption was 43.8 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,389 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,392 INFO L168 Benchmark]: CACSL2BoogieTranslator took 455.84 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 90.4 MB in the beginning and 179.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,393 INFO L168 Benchmark]: Boogie Preprocessor took 42.30 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 177.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,393 INFO L168 Benchmark]: RCFGBuilder took 302.11 ms. Allocated memory is still 202.4 MB. Free memory was 177.1 MB in the beginning and 159.8 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,394 INFO L168 Benchmark]: TraceAbstraction took 911.76 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 106.8 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. [2019-09-10 01:35:39,398 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 142.6 MB. Free memory was 108.9 MB in the beginning and 108.7 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 455.84 ms. Allocated memory was 142.6 MB in the beginning and 202.4 MB in the end (delta: 59.8 MB). Free memory was 90.4 MB in the beginning and 179.2 MB in the end (delta: -88.7 MB). Peak memory consumption was 19.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.30 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 177.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 302.11 ms. Allocated memory is still 202.4 MB. Free memory was 177.1 MB in the beginning and 159.8 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 911.76 ms. Allocated memory is still 202.4 MB. Free memory was 159.8 MB in the beginning and 106.8 MB in the end (delta: 53.0 MB). Peak memory consumption was 53.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: 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 3 procedures, 26 locations, 1 error locations. SAFE Result, 0.8s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 67 SDtfs, 42 SDslu, 40 SDs, 0 SdLazy, 7 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9007716049382716 AbsIntWeakeningRatio, 1.8333333333333333 AbsIntAvgWeakeningVarsNumRemoved, 2.1666666666666665 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 224 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...