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/loop-acceleration/simple_4-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:25:22,445 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:25:22,447 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:25:22,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-20 13:25:22,468 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:25:22,469 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:25:22,470 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:25:22,471 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:25:22,472 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:25:22,473 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:25:22,474 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:25:22,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:25:22,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:25:22,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:25:22,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:25:22,481 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:25:22,483 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-20 13:25:22,487 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:25:22,487 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:25:22,488 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:25:22,489 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:25:22,490 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:25:22,490 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:25:22,491 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:25:22,491 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:25:22,491 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:25:22,492 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:25:22,493 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:25:22,494 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 [2019-09-20 13:25:22,515 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:25:22,516 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:25:22,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:25:22,517 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:25:22,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:25:22,517 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:25:22,518 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:25:22,518 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:25:22,518 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:25:22,518 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:25:22,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:25:22,520 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:25:22,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:25:22,521 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:25:22,521 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:25:22,521 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:25:22,521 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:25:22,522 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:25:22,522 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:25:22,522 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:25:22,522 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:25:22,523 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:25:22,523 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:25:22,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:25:22,523 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:25:22,524 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:25:22,524 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:25:22,524 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:25:22,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:25:22,524 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:25:22,563 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:25:22,577 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:25:22,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:25:22,587 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:25:22,588 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:25:22,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-20 13:25:22,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea61573b/8a49b0a02bb34b1c90a9d45bf467a76a/FLAG05c125e48 [2019-09-20 13:25:23,117 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:25:23,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/simple_4-2.c [2019-09-20 13:25:23,125 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea61573b/8a49b0a02bb34b1c90a9d45bf467a76a/FLAG05c125e48 [2019-09-20 13:25:23,513 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cea61573b/8a49b0a02bb34b1c90a9d45bf467a76a [2019-09-20 13:25:23,523 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:25:23,524 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:25:23,525 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:23,525 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:25:23,531 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:25:23,532 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,535 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63923cab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23, skipping insertion in model container [2019-09-20 13:25:23,536 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,544 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:25:23,561 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:25:23,724 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:23,730 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:25:23,743 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:25:23,756 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:25:23,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23 WrapperNode [2019-09-20 13:25:23,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:25:23,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:25:23,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:25:23,758 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:25:23,855 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,860 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,863 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,870 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,871 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (1/1) ... [2019-09-20 13:25:23,872 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:25:23,873 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:25:23,873 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:25:23,873 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:25:23,874 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (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 [2019-09-20 13:25:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:25:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:25:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-20 13:25:23,932 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:25:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:25:23,932 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-20 13:25:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:25:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:25:23,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:25:24,072 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:25:24,072 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-20 13:25:24,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:24 BoogieIcfgContainer [2019-09-20 13:25:24,074 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:25:24,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:25:24,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:25:24,078 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:25:24,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:25:23" (1/3) ... [2019-09-20 13:25:24,079 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c26b1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:24, skipping insertion in model container [2019-09-20 13:25:24,079 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:25:23" (2/3) ... [2019-09-20 13:25:24,080 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c26b1db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:25:24, skipping insertion in model container [2019-09-20 13:25:24,080 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:25:24" (3/3) ... [2019-09-20 13:25:24,081 INFO L109 eAbstractionObserver]: Analyzing ICFG simple_4-2.c [2019-09-20 13:25:24,091 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:25:24,098 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:25:24,112 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:25:24,141 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:25:24,142 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:25:24,142 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:25:24,142 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:25:24,142 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:25:24,142 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:25:24,143 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:25:24,143 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:25:24,159 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2019-09-20 13:25:24,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-09-20 13:25:24,168 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:24,169 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:24,172 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:24,178 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:24,178 INFO L82 PathProgramCache]: Analyzing trace with hash 1846144830, now seen corresponding path program 1 times [2019-09-20 13:25:24,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:24,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:24,231 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:24,231 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:24,232 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:24,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:24,436 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:25:24,436 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:25:24,437 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:24,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:25:24,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:25:24,489 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:25:24,495 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 3 states. [2019-09-20 13:25:24,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:24,562 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-09-20 13:25:24,563 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:25:24,566 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-09-20 13:25:24,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:24,581 INFO L225 Difference]: With dead ends: 18 [2019-09-20 13:25:24,582 INFO L226 Difference]: Without dead ends: 12 [2019-09-20 13:25:24,588 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:25:24,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-09-20 13:25:24,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-09-20 13:25:24,624 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-09-20 13:25:24,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 12 transitions. [2019-09-20 13:25:24,627 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 12 transitions. Word has length 10 [2019-09-20 13:25:24,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:24,627 INFO L475 AbstractCegarLoop]: Abstraction has 12 states and 12 transitions. [2019-09-20 13:25:24,628 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:25:24,628 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 12 transitions. [2019-09-20 13:25:24,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-09-20 13:25:24,629 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:24,630 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:24,631 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:24,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:24,632 INFO L82 PathProgramCache]: Analyzing trace with hash 1432376145, now seen corresponding path program 1 times [2019-09-20 13:25:24,633 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:24,635 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:24,635 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:24,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:24,636 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:24,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:24,791 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:24,792 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:24,792 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:25:24,793 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2019-09-20 13:25:24,795 INFO L207 CegarAbsIntRunner]: [0], [4], [11], [13], [19], [22], [24], [30], [31], [32], [34] [2019-09-20 13:25:24,824 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:25:24,824 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:25:24,876 WARN L79 EvaluatorLogger]: Possible loss of precision. Operator ARITHMOD has no precise implementation. [2019-09-20 13:25:25,308 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2019-09-20 13:25:25,311 INFO L272 AbstractInterpreter]: Visited 11 different actions 35 times. Merged at 2 different actions 8 times. Widened at 1 different actions 2 times. Performed 48 root evaluator evaluations with a maximum evaluation depth of 13. Performed 48 inverse root evaluator evaluations with a maximum inverse evaluation depth of 13. Found 1 fixpoints after 1 different actions. Largest state had 2 variables. [2019-09-20 13:25:25,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:25,316 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-09-20 13:25:25,316 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:25,317 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:25:25,339 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:25,339 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2019-09-20 13:25:25,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:25,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-20 13:25:25,359 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:25:25,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:25,407 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:25:25,440 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:25,446 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-09-20 13:25:25,446 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2019-09-20 13:25:25,446 INFO L250 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2019-09-20 13:25:25,447 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:25,448 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:25,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:25:25,449 INFO L87 Difference]: Start difference. First operand 12 states and 12 transitions. Second operand 5 states. [2019-09-20 13:25:25,470 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:25,471 INFO L93 Difference]: Finished difference Result 13 states and 13 transitions. [2019-09-20 13:25:25,471 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-20 13:25:25,471 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-09-20 13:25:25,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:25,472 INFO L225 Difference]: With dead ends: 13 [2019-09-20 13:25:25,472 INFO L226 Difference]: Without dead ends: 13 [2019-09-20 13:25:25,473 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 2 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:25:25,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-09-20 13:25:25,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2019-09-20 13:25:25,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-09-20 13:25:25,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-09-20 13:25:25,477 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-09-20 13:25:25,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:25,477 INFO L475 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-09-20 13:25:25,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:25,477 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-09-20 13:25:25,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-09-20 13:25:25,478 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:25:25,478 INFO L407 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:25:25,478 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:25:25,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:25:25,479 INFO L82 PathProgramCache]: Analyzing trace with hash 1490448798, now seen corresponding path program 2 times [2019-09-20 13:25:25,479 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:25:25,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:25,481 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:25:25,481 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:25:25,481 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:25:25,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:25:25,564 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:25:25,564 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:25,564 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:25:25,565 INFO L189 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2019-09-20 13:25:25,565 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2019-09-20 13:25:25,565 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:25:25,565 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_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 -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-20 13:25:25,593 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-20 13:25:25,593 INFO L289 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2019-09-20 13:25:25,603 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2019-09-20 13:25:25,604 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-20 13:25:25,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-20 13:25:25,606 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-20 13:25:25,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:25:25,622 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:25:25,623 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:25:25,628 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:25:25,633 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-20 13:25:25,661 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:25:25,662 INFO L322 TraceCheckSpWp]: Computing backward predicates... [2019-09-20 13:25:25,741 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:25:25,745 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:25:25,746 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [5] total 11 [2019-09-20 13:25:25,746 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:25:25,746 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:25:25,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:25:25,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:25:25,747 INFO L87 Difference]: Start difference. First operand 13 states and 13 transitions. Second operand 5 states. [2019-09-20 13:25:25,777 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:25:25,777 INFO L93 Difference]: Finished difference Result 11 states and 11 transitions. [2019-09-20 13:25:25,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:25:25,778 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2019-09-20 13:25:25,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:25:25,778 INFO L225 Difference]: With dead ends: 11 [2019-09-20 13:25:25,778 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:25:25,779 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2019-09-20 13:25:25,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:25:25,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:25:25,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:25:25,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:25:25,780 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 12 [2019-09-20 13:25:25,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:25:25,782 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:25:25,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:25:25,782 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:25:25,782 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:25:25,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:25:25 BoogieIcfgContainer [2019-09-20 13:25:25,788 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:25:25,791 INFO L168 Benchmark]: Toolchain (without parser) took 2265.83 ms. Allocated memory was 131.6 MB in the beginning and 220.7 MB in the end (delta: 89.1 MB). Free memory was 86.2 MB in the beginning and 112.2 MB in the end (delta: -26.0 MB). Peak memory consumption was 63.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,793 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,795 INFO L168 Benchmark]: CACSL2BoogieTranslator took 232.75 ms. Allocated memory is still 131.6 MB. Free memory was 86.0 MB in the beginning and 76.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,796 INFO L168 Benchmark]: Boogie Preprocessor took 114.29 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 76.8 MB in the beginning and 176.1 MB in the end (delta: -99.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,798 INFO L168 Benchmark]: RCFGBuilder took 201.18 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,799 INFO L168 Benchmark]: TraceAbstraction took 1713.26 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 164.7 MB in the beginning and 112.2 MB in the end (delta: 52.5 MB). Peak memory consumption was 74.0 MB. Max. memory is 7.1 GB. [2019-09-20 13:25:25,809 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 131.6 MB. Free memory was 104.4 MB in the beginning and 104.2 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 232.75 ms. Allocated memory is still 131.6 MB. Free memory was 86.0 MB in the beginning and 76.8 MB in the end (delta: 9.2 MB). Peak memory consumption was 9.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 114.29 ms. Allocated memory was 131.6 MB in the beginning and 199.2 MB in the end (delta: 67.6 MB). Free memory was 76.8 MB in the beginning and 176.1 MB in the end (delta: -99.3 MB). Peak memory consumption was 16.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 201.18 ms. Allocated memory is still 199.2 MB. Free memory was 176.1 MB in the beginning and 165.3 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1713.26 ms. Allocated memory was 199.2 MB in the beginning and 220.7 MB in the end (delta: 21.5 MB). Free memory was 164.7 MB in the beginning and 112.2 MB in the end (delta: 52.5 MB). Peak memory consumption was 74.0 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 17 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 34 SDtfs, 1 SDslu, 50 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 60 GetRequests, 40 SyntacticMatches, 4 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 56 NumberOfCodeBlocks, 54 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 1594 SizeOfPredicates, 4 NumberOfNonLiveVariables, 47 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 7 InterpolantComputations, 3 PerfectInterpolantSequences, 6/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...