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/array_3-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:31:18,316 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:31:18,318 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:31:18,332 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-10-03 02:31:18,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:31:18,346 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:31:18,347 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:31:18,349 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:31:18,350 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:31:18,352 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:31:18,354 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:31:18,361 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:31:18,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:31:18,368 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:31:18,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:31:18,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:31:18,374 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-10-03 02:31:18,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:31:18,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:31:18,380 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:31:18,381 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:31:18,383 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:31:18,383 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:31:18,384 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:31:18,384 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:31:18,384 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:31:18,386 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:31:18,387 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:31:18,388 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 [2019-10-03 02:31:18,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:31:18,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:31:18,408 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:31:18,409 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:31:18,409 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:31:18,410 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:31:18,410 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:31:18,411 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:31:18,412 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:31:18,412 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:31:18,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:31:18,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:31:18,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:31:18,413 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:31:18,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:31:18,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:31:18,415 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:31:18,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:31:18,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:31:18,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:31:18,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:31:18,417 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:31:18,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:31:18,417 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:31:18,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:31:18,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:31:18,418 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:31:18,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:31:18,419 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:31:18,419 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:31:18,479 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:31:18,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:31:18,505 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:31:18,507 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:31:18,508 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:31:18,509 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loop-acceleration/array_3-2.i [2019-10-03 02:31:18,590 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824af7ff1/42678308b1084694accecf02d551e723/FLAG450c5e2d4 [2019-10-03 02:31:19,107 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:31:19,108 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-acceleration/array_3-2.i [2019-10-03 02:31:19,117 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824af7ff1/42678308b1084694accecf02d551e723/FLAG450c5e2d4 [2019-10-03 02:31:19,472 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/824af7ff1/42678308b1084694accecf02d551e723 [2019-10-03 02:31:19,484 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:31:19,486 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:31:19,487 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:31:19,487 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:31:19,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:31:19,493 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:19,497 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18da5b9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19, skipping insertion in model container [2019-10-03 02:31:19,498 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:19,507 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:31:19,530 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:31:19,808 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:31:19,817 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:31:19,847 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:31:19,873 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:31:19,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19 WrapperNode [2019-10-03 02:31:19,873 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:31:19,874 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:31:19,874 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:31:19,875 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:31:19,998 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,011 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,028 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (1/1) ... [2019-10-03 02:31:20,030 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:31:20,031 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:31:20,031 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:31:20,031 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:31:20,033 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (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 [2019-10-03 02:31:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:31:20,115 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:31:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-10-03 02:31:20,116 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:31:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:31:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-10-03 02:31:20,116 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:31:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:31:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:31:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:31:20,117 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:31:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:31:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:31:20,118 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:31:20,373 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:31:20,373 INFO L283 CfgBuilder]: Removed 2 assume(true) statements. [2019-10-03 02:31:20,375 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:31:20 BoogieIcfgContainer [2019-10-03 02:31:20,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:31:20,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:31:20,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:31:20,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:31:20,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:31:19" (1/3) ... [2019-10-03 02:31:20,383 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3f0fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:31:20, skipping insertion in model container [2019-10-03 02:31:20,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:31:19" (2/3) ... [2019-10-03 02:31:20,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f3f0fda and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:31:20, skipping insertion in model container [2019-10-03 02:31:20,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:31:20" (3/3) ... [2019-10-03 02:31:20,388 INFO L109 eAbstractionObserver]: Analyzing ICFG array_3-2.i [2019-10-03 02:31:20,405 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:31:20,419 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:31:20,468 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:31:20,524 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:31:20,525 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:31:20,525 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:31:20,525 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:31:20,525 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:31:20,525 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:31:20,525 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:31:20,526 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:31:20,544 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2019-10-03 02:31:20,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-10-03 02:31:20,556 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:31:20,558 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:31:20,560 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:31:20,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:31:20,568 INFO L82 PathProgramCache]: Analyzing trace with hash 1584649929, now seen corresponding path program 1 times [2019-10-03 02:31:20,571 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:31:20,642 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:20,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:31:20,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:20,643 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:31:20,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:31:20,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:31:20,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:31:20,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:31:20,745 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:31:20,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:31:20,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:31:20,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:31:20,766 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2019-10-03 02:31:20,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:31:20,784 INFO L93 Difference]: Finished difference Result 25 states and 27 transitions. [2019-10-03 02:31:20,785 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:31:20,786 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 13 [2019-10-03 02:31:20,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:31:20,799 INFO L225 Difference]: With dead ends: 25 [2019-10-03 02:31:20,799 INFO L226 Difference]: Without dead ends: 18 [2019-10-03 02:31:20,801 INFO L640 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 [2019-10-03 02:31:20,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-10-03 02:31:20,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-10-03 02:31:20,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-10-03 02:31:20,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2019-10-03 02:31:20,844 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 13 [2019-10-03 02:31:20,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:31:20,845 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2019-10-03 02:31:20,845 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:31:20,845 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2019-10-03 02:31:20,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-03 02:31:20,846 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:31:20,847 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:31:20,847 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:31:20,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:31:20,848 INFO L82 PathProgramCache]: Analyzing trace with hash -963606854, now seen corresponding path program 1 times [2019-10-03 02:31:20,848 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:31:20,850 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:20,850 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:31:20,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:20,851 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:31:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:31:20,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:31:20,926 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:31:20,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:31:20,927 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:31:20,929 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:31:20,932 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:31:20,933 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:31:20,933 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2019-10-03 02:31:21,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:31:21,017 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-10-03 02:31:21,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:31:21,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 15 [2019-10-03 02:31:21,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:31:21,025 INFO L225 Difference]: With dead ends: 25 [2019-10-03 02:31:21,025 INFO L226 Difference]: Without dead ends: 25 [2019-10-03 02:31:21,027 INFO L640 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 [2019-10-03 02:31:21,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-10-03 02:31:21,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 19. [2019-10-03 02:31:21,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-10-03 02:31:21,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2019-10-03 02:31:21,038 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 15 [2019-10-03 02:31:21,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:31:21,039 INFO L475 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2019-10-03 02:31:21,039 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:31:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2019-10-03 02:31:21,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-03 02:31:21,040 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:31:21,041 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:31:21,041 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:31:21,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:31:21,042 INFO L82 PathProgramCache]: Analyzing trace with hash -544788776, now seen corresponding path program 1 times [2019-10-03 02:31:21,042 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:31:21,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:21,044 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:31:21,044 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:21,045 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:31:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:31:21,143 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:31:21,144 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:31:21,144 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:31:21,144 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:31:21,145 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:31:21,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:31:21,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:31:21,146 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 5 states. [2019-10-03 02:31:21,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:31:21,228 INFO L93 Difference]: Finished difference Result 27 states and 30 transitions. [2019-10-03 02:31:21,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:31:21,229 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 17 [2019-10-03 02:31:21,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:31:21,230 INFO L225 Difference]: With dead ends: 27 [2019-10-03 02:31:21,231 INFO L226 Difference]: Without dead ends: 24 [2019-10-03 02:31:21,231 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:31:21,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-10-03 02:31:21,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 22. [2019-10-03 02:31:21,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-10-03 02:31:21,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2019-10-03 02:31:21,237 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 17 [2019-10-03 02:31:21,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:31:21,237 INFO L475 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2019-10-03 02:31:21,238 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:31:21,238 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2019-10-03 02:31:21,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-10-03 02:31:21,239 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:31:21,239 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:31:21,239 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:31:21,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:31:21,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1315898579, now seen corresponding path program 1 times [2019-10-03 02:31:21,240 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:31:21,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:21,243 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:31:21,243 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:31:21,243 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:31:21,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:31:21,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:31:21,385 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:31:21,385 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:31:21,386 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 22 with the following transitions: [2019-10-03 02:31:21,389 INFO L207 CegarAbsIntRunner]: [0], [1], [5], [11], [13], [15], [19], [23], [26], [32], [34], [36], [43], [46], [48], [54], [55], [56], [58] [2019-10-03 02:31:21,427 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:31:21,428 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:31:21,516 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:31:21,518 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 20 variables. [2019-10-03 02:31:21,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:31:21,523 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:31:21,569 INFO L227 lantSequenceWeakener]: Weakened 4 states. On average, predicates are now at 100% of their original sizes. [2019-10-03 02:31:21,569 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:31:21,572 INFO L420 sIntCurrentIteration]: We unified 20 AI predicates to 20 [2019-10-03 02:31:21,572 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:31:21,573 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:31:21,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 6 [2019-10-03 02:31:21,574 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:31:21,574 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:31:21,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:31:21,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:31:21,575 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 2 states. [2019-10-03 02:31:21,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:31:21,577 INFO L93 Difference]: Finished difference Result 6 states and 5 transitions. [2019-10-03 02:31:21,577 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:31:21,577 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2019-10-03 02:31:21,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:31:21,577 INFO L225 Difference]: With dead ends: 6 [2019-10-03 02:31:21,578 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:31:21,578 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:31:21,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:31:21,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:31:21,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:31:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:31:21,579 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-10-03 02:31:21,580 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:31:21,580 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:31:21,580 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:31:21,580 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:31:21,580 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:31:21,587 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:31:21 BoogieIcfgContainer [2019-10-03 02:31:21,587 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:31:21,590 INFO L168 Benchmark]: Toolchain (without parser) took 2103.59 ms. Allocated memory was 130.5 MB in the beginning and 199.2 MB in the end (delta: 68.7 MB). Free memory was 86.2 MB in the beginning and 105.7 MB in the end (delta: -19.5 MB). Peak memory consumption was 49.2 MB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,591 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,592 INFO L168 Benchmark]: CACSL2BoogieTranslator took 386.80 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,593 INFO L168 Benchmark]: Boogie Preprocessor took 156.23 ms. Allocated memory was 130.5 MB in the beginning and 199.2 MB in the end (delta: 68.7 MB). Free memory was 76.2 MB in the beginning and 174.9 MB in the end (delta: -98.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,594 INFO L168 Benchmark]: RCFGBuilder took 344.90 ms. Allocated memory is still 199.2 MB. Free memory was 174.9 MB in the beginning and 161.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,595 INFO L168 Benchmark]: TraceAbstraction took 1209.90 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 105.7 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:31:21,601 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 130.5 MB. Free memory was 104.7 MB in the beginning and 104.5 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 386.80 ms. Allocated memory is still 130.5 MB. Free memory was 85.8 MB in the beginning and 76.2 MB in the end (delta: 9.6 MB). Peak memory consumption was 9.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 156.23 ms. Allocated memory was 130.5 MB in the beginning and 199.2 MB in the end (delta: 68.7 MB). Free memory was 76.2 MB in the beginning and 174.9 MB in the end (delta: -98.7 MB). Peak memory consumption was 15.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 344.90 ms. Allocated memory is still 199.2 MB. Free memory was 174.9 MB in the beginning and 161.0 MB in the end (delta: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1209.90 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 105.7 MB in the end (delta: 54.7 MB). Peak memory consumption was 54.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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, 25 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 61 SDtfs, 10 SDslu, 49 SDs, 0 SdLazy, 38 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 31 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 1 AbstIntIterations, 1 AbstIntStrong, 0.9625 AbsIntWeakeningRatio, 0.8 AbsIntAvgWeakeningVarsNumRemoved, 0.3 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 8 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 66 NumberOfCodeBlocks, 66 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 1688 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 3 PerfectInterpolantSequences, 2/5 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...