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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 06:27:53,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 06:27:53,563 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 06:27:53,575 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 06:27:53,576 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 06:27:53,577 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 06:27:53,578 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 06:27:53,580 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 06:27:53,582 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 06:27:53,583 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 06:27:53,584 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 06:27:53,585 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 06:27:53,585 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 06:27:53,586 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 06:27:53,587 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 06:27:53,588 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 06:27:53,589 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 06:27:53,590 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 06:27:53,595 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 06:27:53,597 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 06:27:53,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 06:27:53,605 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 06:27:53,609 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 06:27:53,610 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 06:27:53,612 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 06:27:53,627 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 06:27:53,630 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 06:27:53,632 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 06:27:53,633 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 06:27:53,658 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 06:27:53,659 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 06:27:53,662 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 06:27:53,662 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 06:27:53,662 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 06:27:53,662 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 06:27:53,663 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 06:27:53,663 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 06:27:53,663 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 06:27:53,663 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 06:27:53,664 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 06:27:53,665 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 06:27:53,665 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 06:27:53,666 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 06:27:53,666 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 06:27:53,666 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 06:27:53,666 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 06:27:53,666 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 06:27:53,667 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 06:27:53,667 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 06:27:53,667 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 06:27:53,668 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 06:27:53,668 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 06:27:53,668 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 06:27:53,669 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 06:27:53,669 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 06:27:53,669 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 06:27:53,669 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 06:27:53,669 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 06:27:53,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 06:27:53,716 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 06:27:53,720 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 06:27:53,721 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 06:27:53,722 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 06:27:53,723 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2019-09-08 06:27:53,781 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bcb59b/79d68c9d83964cad916a2769a1fbb720/FLAGa98957572 [2019-09-08 06:27:54,253 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 06:27:54,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive-simple/id_i5_o5-2.c [2019-09-08 06:27:54,261 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bcb59b/79d68c9d83964cad916a2769a1fbb720/FLAGa98957572 [2019-09-08 06:27:54,597 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6c5bcb59b/79d68c9d83964cad916a2769a1fbb720 [2019-09-08 06:27:54,607 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 06:27:54,609 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 06:27:54,614 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 06:27:54,615 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 06:27:54,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 06:27:54,620 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:54,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c6034e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54, skipping insertion in model container [2019-09-08 06:27:54,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:54,631 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 06:27:54,648 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 06:27:54,882 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:27:54,890 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 06:27:54,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 06:27:54,928 INFO L192 MainTranslator]: Completed translation [2019-09-08 06:27:54,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54 WrapperNode [2019-09-08 06:27:54,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 06:27:54,931 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 06:27:54,931 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 06:27:54,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 06:27:54,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:54,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:54,958 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:55,036 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:55,040 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:55,042 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:55,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (1/1) ... [2019-09-08 06:27:55,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 06:27:55,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 06:27:55,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 06:27:55,045 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 06:27:55,046 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (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 [2019-09-08 06:27:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 06:27:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 06:27:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2019-09-08 06:27:55,114 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 06:27:55,114 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-08 06:27:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 06:27:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure id [2019-09-08 06:27:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 06:27:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 06:27:55,115 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 06:27:55,293 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 06:27:55,293 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 06:27:55,295 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:27:55 BoogieIcfgContainer [2019-09-08 06:27:55,295 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 06:27:55,296 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 06:27:55,296 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 06:27:55,299 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 06:27:55,300 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 06:27:54" (1/3) ... [2019-09-08 06:27:55,300 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1737d088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:27:55, skipping insertion in model container [2019-09-08 06:27:55,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 06:27:54" (2/3) ... [2019-09-08 06:27:55,301 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1737d088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 06:27:55, skipping insertion in model container [2019-09-08 06:27:55,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 06:27:55" (3/3) ... [2019-09-08 06:27:55,303 INFO L109 eAbstractionObserver]: Analyzing ICFG id_i5_o5-2.c [2019-09-08 06:27:55,313 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 06:27:55,320 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 06:27:55,335 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 06:27:55,364 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 06:27:55,365 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 06:27:55,365 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 06:27:55,365 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 06:27:55,365 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 06:27:55,365 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 06:27:55,366 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 06:27:55,366 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 06:27:55,366 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 06:27:55,383 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-09-08 06:27:55,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-09-08 06:27:55,389 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:55,390 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:55,392 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:55,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:55,398 INFO L82 PathProgramCache]: Analyzing trace with hash -872342019, now seen corresponding path program 1 times [2019-09-08 06:27:55,400 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:55,401 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:55,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:55,450 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:55,450 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:55,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:55,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 06:27:55,591 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 06:27:55,591 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 06:27:55,599 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 06:27:55,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 06:27:55,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 06:27:55,626 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 5 states. [2019-09-08 06:27:55,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:55,741 INFO L93 Difference]: Finished difference Result 30 states and 33 transitions. [2019-09-08 06:27:55,743 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 06:27:55,744 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2019-09-08 06:27:55,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:55,754 INFO L225 Difference]: With dead ends: 30 [2019-09-08 06:27:55,755 INFO L226 Difference]: Without dead ends: 18 [2019-09-08 06:27:55,758 INFO L628 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 [2019-09-08 06:27:55,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-09-08 06:27:55,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-09-08 06:27:55,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-09-08 06:27:55,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-09-08 06:27:55,804 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2019-09-08 06:27:55,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:55,805 INFO L475 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-09-08 06:27:55,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 06:27:55,805 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-09-08 06:27:55,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 06:27:55,807 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:55,807 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:55,808 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:55,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:55,808 INFO L82 PathProgramCache]: Analyzing trace with hash -953570577, now seen corresponding path program 1 times [2019-09-08 06:27:55,809 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:55,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:55,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:55,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:55,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:55,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:55,889 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 06:27:55,890 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:55,890 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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 [2019-09-08 06:27:55,919 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:55,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:55,939 INFO L256 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 06:27:55,945 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:55,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 06:27:55,991 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:55,992 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 6 [2019-09-08 06:27:55,993 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 06:27:55,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 06:27:55,993 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-09-08 06:27:55,994 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 6 states. [2019-09-08 06:27:56,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:56,063 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2019-09-08 06:27:56,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 06:27:56,064 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 19 [2019-09-08 06:27:56,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:56,065 INFO L225 Difference]: With dead ends: 25 [2019-09-08 06:27:56,065 INFO L226 Difference]: Without dead ends: 21 [2019-09-08 06:27:56,066 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:27:56,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-09-08 06:27:56,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-09-08 06:27:56,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-09-08 06:27:56,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 22 transitions. [2019-09-08 06:27:56,073 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 22 transitions. Word has length 19 [2019-09-08 06:27:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:56,074 INFO L475 AbstractCegarLoop]: Abstraction has 21 states and 22 transitions. [2019-09-08 06:27:56,074 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 06:27:56,074 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 22 transitions. [2019-09-08 06:27:56,075 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-09-08 06:27:56,076 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:56,076 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:56,076 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:56,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:56,077 INFO L82 PathProgramCache]: Analyzing trace with hash 397359997, now seen corresponding path program 2 times [2019-09-08 06:27:56,077 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:56,077 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:56,078 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 06:27:56,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:56,198 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 06:27:56,199 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:56,199 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP 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) [2019-09-08 06:27:56,214 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:56,246 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 06:27:56,246 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:56,247 INFO L256 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 8 conjunts are in the unsatisfiable core [2019-09-08 06:27:56,251 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:56,278 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 06:27:56,285 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:56,286 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2019-09-08 06:27:56,286 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 06:27:56,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 06:27:56,287 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2019-09-08 06:27:56,287 INFO L87 Difference]: Start difference. First operand 21 states and 22 transitions. Second operand 7 states. [2019-09-08 06:27:56,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:56,358 INFO L93 Difference]: Finished difference Result 28 states and 29 transitions. [2019-09-08 06:27:56,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 06:27:56,359 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 25 [2019-09-08 06:27:56,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:56,361 INFO L225 Difference]: With dead ends: 28 [2019-09-08 06:27:56,361 INFO L226 Difference]: Without dead ends: 24 [2019-09-08 06:27:56,362 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2019-09-08 06:27:56,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-09-08 06:27:56,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2019-09-08 06:27:56,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2019-09-08 06:27:56,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2019-09-08 06:27:56,369 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 25 [2019-09-08 06:27:56,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:56,369 INFO L475 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2019-09-08 06:27:56,370 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 06:27:56,370 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2019-09-08 06:27:56,371 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-09-08 06:27:56,371 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:56,371 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:56,372 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:56,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:56,372 INFO L82 PathProgramCache]: Analyzing trace with hash 1198310127, now seen corresponding path program 3 times [2019-09-08 06:27:56,373 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:56,373 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:56,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,374 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:27:56,374 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:56,542 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 06:27:56,542 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:56,542 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:27:56,574 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:56,597 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2019-09-08 06:27:56,597 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:56,598 INFO L256 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 06:27:56,601 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 06:27:56,647 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:56,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 8 [2019-09-08 06:27:56,650 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 06:27:56,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 06:27:56,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 06:27:56,651 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 8 states. [2019-09-08 06:27:56,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:56,772 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2019-09-08 06:27:56,772 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 06:27:56,773 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 31 [2019-09-08 06:27:56,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:56,774 INFO L225 Difference]: With dead ends: 31 [2019-09-08 06:27:56,774 INFO L226 Difference]: Without dead ends: 27 [2019-09-08 06:27:56,775 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2019-09-08 06:27:56,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-09-08 06:27:56,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-09-08 06:27:56,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-09-08 06:27:56,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2019-09-08 06:27:56,781 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 31 [2019-09-08 06:27:56,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:56,782 INFO L475 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2019-09-08 06:27:56,782 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 06:27:56,782 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2019-09-08 06:27:56,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-09-08 06:27:56,783 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:56,784 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:56,784 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:56,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:56,785 INFO L82 PathProgramCache]: Analyzing trace with hash 1080764669, now seen corresponding path program 4 times [2019-09-08 06:27:56,785 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:56,785 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:56,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,786 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:27:56,786 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:56,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:56,916 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 06:27:56,917 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:56,917 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:27:56,939 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:56,955 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 06:27:56,955 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:56,956 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 06:27:56,961 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:56,995 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 06:27:56,999 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:56,999 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 9 [2019-09-08 06:27:57,000 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 06:27:57,000 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 06:27:57,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-09-08 06:27:57,001 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 9 states. [2019-09-08 06:27:57,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:57,095 INFO L93 Difference]: Finished difference Result 34 states and 35 transitions. [2019-09-08 06:27:57,096 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 06:27:57,096 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 37 [2019-09-08 06:27:57,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:57,097 INFO L225 Difference]: With dead ends: 34 [2019-09-08 06:27:57,097 INFO L226 Difference]: Without dead ends: 30 [2019-09-08 06:27:57,098 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=65, Invalid=117, Unknown=0, NotChecked=0, Total=182 [2019-09-08 06:27:57,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-09-08 06:27:57,103 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-09-08 06:27:57,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-08 06:27:57,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2019-09-08 06:27:57,104 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 37 [2019-09-08 06:27:57,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:57,105 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2019-09-08 06:27:57,105 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 06:27:57,105 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2019-09-08 06:27:57,107 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 06:27:57,107 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:57,107 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:57,107 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:57,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:57,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1752970513, now seen corresponding path program 5 times [2019-09-08 06:27:57,108 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:57,108 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:57,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:57,109 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:27:57,109 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:57,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:57,403 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-08 06:27:57,406 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:57,407 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 06:27:57,431 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:57,461 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2019-09-08 06:27:57,461 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:57,462 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 27 conjunts are in the unsatisfiable core [2019-09-08 06:27:57,465 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:57,512 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2019-09-08 06:27:57,516 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 06:27:57,517 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15] total 15 [2019-09-08 06:27:57,517 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 06:27:57,517 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 06:27:57,518 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-09-08 06:27:57,518 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand 15 states. [2019-09-08 06:27:57,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:57,624 INFO L93 Difference]: Finished difference Result 37 states and 38 transitions. [2019-09-08 06:27:57,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 06:27:57,625 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 43 [2019-09-08 06:27:57,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:57,626 INFO L225 Difference]: With dead ends: 37 [2019-09-08 06:27:57,627 INFO L226 Difference]: Without dead ends: 33 [2019-09-08 06:27:57,627 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 42 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2019-09-08 06:27:57,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-09-08 06:27:57,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-09-08 06:27:57,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-09-08 06:27:57,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 34 transitions. [2019-09-08 06:27:57,635 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 34 transitions. Word has length 43 [2019-09-08 06:27:57,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:57,635 INFO L475 AbstractCegarLoop]: Abstraction has 33 states and 34 transitions. [2019-09-08 06:27:57,635 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 06:27:57,635 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 34 transitions. [2019-09-08 06:27:57,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-09-08 06:27:57,637 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 06:27:57,637 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 06:27:57,637 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 06:27:57,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 06:27:57,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1590630787, now seen corresponding path program 6 times [2019-09-08 06:27:57,638 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 06:27:57,638 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 06:27:57,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:57,640 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 06:27:57,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 06:27:57,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 06:27:57,883 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 12 proven. 61 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2019-09-08 06:27:57,884 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 06:27:57,884 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 06:27:57,902 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE [2019-09-08 06:27:57,935 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2019-09-08 06:27:57,936 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 06:27:57,937 INFO L256 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 06:27:57,940 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 06:27:58,123 INFO L134 CoverageAnalysis]: Checked inductivity of 114 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2019-09-08 06:27:58,128 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 06:27:58,129 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [12] total 21 [2019-09-08 06:27:58,129 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 06:27:58,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 06:27:58,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2019-09-08 06:27:58,131 INFO L87 Difference]: Start difference. First operand 33 states and 34 transitions. Second operand 21 states. [2019-09-08 06:27:58,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 06:27:58,741 INFO L93 Difference]: Finished difference Result 61 states and 90 transitions. [2019-09-08 06:27:58,745 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 06:27:58,745 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 49 [2019-09-08 06:27:58,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 06:27:58,746 INFO L225 Difference]: With dead ends: 61 [2019-09-08 06:27:58,746 INFO L226 Difference]: Without dead ends: 0 [2019-09-08 06:27:58,748 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2019-09-08 06:27:58,748 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-08 06:27:58,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-08 06:27:58,748 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-08 06:27:58,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-08 06:27:58,749 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 49 [2019-09-08 06:27:58,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 06:27:58,749 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-08 06:27:58,749 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 06:27:58,749 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-08 06:27:58,750 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-08 06:27:58,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-09-08 06:27:58,815 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2019-09-08 06:27:58,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:27:58,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-09-08 06:27:58,816 INFO L446 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2019-09-08 06:27:58,816 INFO L446 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2019-09-08 06:27:58,816 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-09-08 06:27:58,816 INFO L443 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2019-09-08 06:27:58,817 INFO L446 ceAbstractionStarter]: At program point mainENTRY(lines 9 15) the Hoare annotation is: true [2019-09-08 06:27:58,817 INFO L443 ceAbstractionStarter]: For program point mainEXIT(lines 9 15) no Hoare annotation was computed. [2019-09-08 06:27:58,817 INFO L443 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2019-09-08 06:27:58,817 INFO L443 ceAbstractionStarter]: For program point L12(lines 12 14) no Hoare annotation was computed. [2019-09-08 06:27:58,817 INFO L439 ceAbstractionStarter]: At program point L11(line 11) the Hoare annotation is: (and (<= main_~input~0 5) (<= 5 main_~input~0)) [2019-09-08 06:27:58,817 INFO L443 ceAbstractionStarter]: For program point L11-1(line 11) no Hoare annotation was computed. [2019-09-08 06:27:58,817 INFO L443 ceAbstractionStarter]: For program point L12-2(lines 9 15) no Hoare annotation was computed. [2019-09-08 06:27:58,818 INFO L443 ceAbstractionStarter]: For program point idFINAL(lines 4 7) no Hoare annotation was computed. [2019-09-08 06:27:58,818 INFO L443 ceAbstractionStarter]: For program point idEXIT(lines 4 7) no Hoare annotation was computed. [2019-09-08 06:27:58,818 INFO L446 ceAbstractionStarter]: At program point idENTRY(lines 4 7) the Hoare annotation is: true [2019-09-08 06:27:58,818 INFO L439 ceAbstractionStarter]: At program point L6(line 6) the Hoare annotation is: (or (not (<= 0 |id_#in~x|)) (and (<= |id_#in~x| id_~x) (<= 1 |id_#in~x|) (<= id_~x |id_#in~x|))) [2019-09-08 06:27:58,818 INFO L443 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-09-08 06:27:58,818 INFO L443 ceAbstractionStarter]: For program point L6-1(line 6) no Hoare annotation was computed. [2019-09-08 06:27:58,821 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 06:27:58 BoogieIcfgContainer [2019-09-08 06:27:58,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-08 06:27:58,824 INFO L168 Benchmark]: Toolchain (without parser) took 4214.69 ms. Allocated memory was 134.2 MB in the beginning and 257.9 MB in the end (delta: 123.7 MB). Free memory was 91.2 MB in the beginning and 99.3 MB in the end (delta: -8.0 MB). Peak memory consumption was 115.7 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,825 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 316.63 ms. Allocated memory is still 134.2 MB. Free memory was 91.0 MB in the beginning and 82.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,828 INFO L168 Benchmark]: Boogie Preprocessor took 113.42 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 82.0 MB in the beginning and 177.5 MB in the end (delta: -95.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,831 INFO L168 Benchmark]: RCFGBuilder took 249.83 ms. Allocated memory is still 199.8 MB. Free memory was 177.5 MB in the beginning and 166.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,837 INFO L168 Benchmark]: TraceAbstraction took 3525.84 ms. Allocated memory was 199.8 MB in the beginning and 257.9 MB in the end (delta: 58.2 MB). Free memory was 166.1 MB in the beginning and 99.3 MB in the end (delta: 66.8 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. [2019-09-08 06:27:58,844 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 134.2 MB. Free memory was 108.8 MB in the beginning and 108.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 316.63 ms. Allocated memory is still 134.2 MB. Free memory was 91.0 MB in the beginning and 82.0 MB in the end (delta: 9.0 MB). Peak memory consumption was 9.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.42 ms. Allocated memory was 134.2 MB in the beginning and 199.8 MB in the end (delta: 65.5 MB). Free memory was 82.0 MB in the beginning and 177.5 MB in the end (delta: -95.4 MB). Peak memory consumption was 16.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 249.83 ms. Allocated memory is still 199.8 MB. Free memory was 177.5 MB in the beginning and 166.7 MB in the end (delta: 10.8 MB). Peak memory consumption was 10.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3525.84 ms. Allocated memory was 199.8 MB in the beginning and 257.9 MB in the end (delta: 58.2 MB). Free memory was 166.1 MB in the beginning and 99.3 MB in the end (delta: 66.8 MB). Peak memory consumption was 125.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 13]: 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, 20 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 7 OverallIterations, 7 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 114 SDtfs, 131 SDslu, 626 SDs, 0 SdLazy, 388 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 311 GetRequests, 225 SyntacticMatches, 2 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 17 PreInvPairs, 17 NumberOfFragments, 27 HoareAnnotationTreeSize, 17 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 76 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 421 NumberOfCodeBlocks, 416 NumberOfCodeBlocksAsserted, 28 NumberOfCheckSat, 408 ConstructedInterpolants, 0 QuantifiedInterpolants, 45600 SizeOfPredicates, 27 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 79 ConjunctsInUnsatCore, 13 InterpolantComputations, 2 PerfectInterpolantSequences, 347/588 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...