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/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 11:44:07,371 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 11:44:07,373 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 11:44:07,384 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 11:44:07,385 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 11:44:07,386 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 11:44:07,387 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 11:44:07,389 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 11:44:07,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 11:44:07,391 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 11:44:07,392 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 11:44:07,393 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 11:44:07,394 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 11:44:07,394 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 11:44:07,395 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 11:44:07,396 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 11:44:07,398 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 11:44:07,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 11:44:07,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 11:44:07,408 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 11:44:07,411 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 11:44:07,412 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 11:44:07,413 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 11:44:07,413 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 11:44:07,417 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 11:44:07,421 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 11:44:07,422 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 11:44:07,424 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 11:44:07,425 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 11:44:07,426 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 11:44:07,427 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 11:44:07,430 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 11:44:07,430 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 11:44:07,430 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 11:44:07,432 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 11:44:07,433 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 11:44:07,434 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 11:44:07,466 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 11:44:07,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 11:44:07,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 11:44:07,469 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 11:44:07,469 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 11:44:07,469 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 11:44:07,469 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 11:44:07,470 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 11:44:07,470 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 11:44:07,470 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 11:44:07,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 11:44:07,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 11:44:07,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 11:44:07,473 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 11:44:07,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 11:44:07,474 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 11:44:07,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 11:44:07,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 11:44:07,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 11:44:07,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 11:44:07,475 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 11:44:07,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:44:07,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 11:44:07,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 11:44:07,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 11:44:07,477 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 11:44:07,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 11:44:07,477 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 11:44:07,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 11:44:07,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 11:44:07,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 11:44:07,550 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 11:44:07,552 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 11:44:07,552 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 11:44:07,553 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2019-09-08 11:44:07,606 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8ae67fc/da1a177e4e244b998d222aebcec1a197/FLAGe0e13e77c [2019-09-08 11:44:08,040 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 11:44:08,041 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2019-09-08 11:44:08,052 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8ae67fc/da1a177e4e244b998d222aebcec1a197/FLAGe0e13e77c [2019-09-08 11:44:08,425 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2e8ae67fc/da1a177e4e244b998d222aebcec1a197 [2019-09-08 11:44:08,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 11:44:08,435 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 11:44:08,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 11:44:08,436 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 11:44:08,440 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 11:44:08,441 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:44:08" (1/1) ... [2019-09-08 11:44:08,444 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58227a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:08, skipping insertion in model container [2019-09-08 11:44:08,444 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:44:08" (1/1) ... [2019-09-08 11:44:08,452 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 11:44:08,517 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 11:44:08,818 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:44:08,935 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 11:44:09,049 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:44:09,084 INFO L192 MainTranslator]: Completed translation [2019-09-08 11:44:09,085 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09 WrapperNode [2019-09-08 11:44:09,085 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 11:44:09,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 11:44:09,086 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 11:44:09,086 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 11:44:09,098 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,099 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,109 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,109 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,142 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,155 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,158 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (1/1) ... [2019-09-08 11:44:09,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 11:44:09,172 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 11:44:09,172 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 11:44:09,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 11:44:09,176 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (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 11:44:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 11:44:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 11:44:09,246 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 11:44:09,246 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 11:44:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 11:44:09,247 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 11:44:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 11:44:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 11:44:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 11:44:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 11:44:09,248 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 11:44:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 11:44:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 11:44:09,249 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 11:44:09,250 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 11:44:09,251 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 11:44:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 11:44:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 11:44:09,253 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 11:44:10,013 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 11:44:10,014 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 11:44:10,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:44:10 BoogieIcfgContainer [2019-09-08 11:44:10,016 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 11:44:10,017 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 11:44:10,017 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 11:44:10,020 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 11:44:10,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:44:08" (1/3) ... [2019-09-08 11:44:10,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e36216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:44:10, skipping insertion in model container [2019-09-08 11:44:10,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:44:09" (2/3) ... [2019-09-08 11:44:10,022 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@49e36216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:44:10, skipping insertion in model container [2019-09-08 11:44:10,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:44:10" (3/3) ... [2019-09-08 11:44:10,027 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+nlh-reducer.c [2019-09-08 11:44:10,037 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 11:44:10,058 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 11:44:10,075 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 11:44:10,126 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 11:44:10,127 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 11:44:10,128 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 11:44:10,128 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 11:44:10,128 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 11:44:10,128 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 11:44:10,128 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 11:44:10,129 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 11:44:10,129 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 11:44:10,167 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states. [2019-09-08 11:44:10,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 11:44:10,179 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:10,181 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:10,183 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:10,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:10,190 INFO L82 PathProgramCache]: Analyzing trace with hash 1740828336, now seen corresponding path program 1 times [2019-09-08 11:44:10,192 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:10,193 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:10,254 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:10,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:10,255 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:10,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:10,639 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 11:44:10,642 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:10,643 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:44:10,647 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:44:10,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:44:10,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:10,665 INFO L87 Difference]: Start difference. First operand 128 states. Second operand 3 states. [2019-09-08 11:44:10,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:10,838 INFO L93 Difference]: Finished difference Result 250 states and 407 transitions. [2019-09-08 11:44:10,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:44:10,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 66 [2019-09-08 11:44:10,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:10,857 INFO L225 Difference]: With dead ends: 250 [2019-09-08 11:44:10,857 INFO L226 Difference]: Without dead ends: 187 [2019-09-08 11:44:10,861 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:10,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2019-09-08 11:44:10,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 185. [2019-09-08 11:44:10,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 185 states. [2019-09-08 11:44:10,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 264 transitions. [2019-09-08 11:44:10,928 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 264 transitions. Word has length 66 [2019-09-08 11:44:10,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:10,929 INFO L475 AbstractCegarLoop]: Abstraction has 185 states and 264 transitions. [2019-09-08 11:44:10,929 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:44:10,929 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 264 transitions. [2019-09-08 11:44:10,932 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:44:10,932 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:10,932 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:10,933 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:10,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:10,933 INFO L82 PathProgramCache]: Analyzing trace with hash -1313317093, now seen corresponding path program 1 times [2019-09-08 11:44:10,933 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:10,933 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:10,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:10,936 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:10,936 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:11,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:11,116 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 11:44:11,117 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:11,117 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:11,118 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:11,119 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:11,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:11,119 INFO L87 Difference]: Start difference. First operand 185 states and 264 transitions. Second operand 5 states. [2019-09-08 11:44:11,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:11,532 INFO L93 Difference]: Finished difference Result 459 states and 685 transitions. [2019-09-08 11:44:11,533 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:11,533 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-09-08 11:44:11,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:11,538 INFO L225 Difference]: With dead ends: 459 [2019-09-08 11:44:11,539 INFO L226 Difference]: Without dead ends: 308 [2019-09-08 11:44:11,544 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:44:11,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 308 states. [2019-09-08 11:44:11,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 308 to 306. [2019-09-08 11:44:11,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-09-08 11:44:11,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 452 transitions. [2019-09-08 11:44:11,612 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 452 transitions. Word has length 68 [2019-09-08 11:44:11,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:11,612 INFO L475 AbstractCegarLoop]: Abstraction has 306 states and 452 transitions. [2019-09-08 11:44:11,613 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:11,613 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 452 transitions. [2019-09-08 11:44:11,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:44:11,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:11,616 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:11,616 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:11,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:11,616 INFO L82 PathProgramCache]: Analyzing trace with hash -78645371, now seen corresponding path program 1 times [2019-09-08 11:44:11,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:11,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:11,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:11,619 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:11,619 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:11,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:11,791 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 11:44:11,791 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:11,792 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:11,793 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:11,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:11,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:11,794 INFO L87 Difference]: Start difference. First operand 306 states and 452 transitions. Second operand 5 states. [2019-09-08 11:44:11,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:11,989 INFO L93 Difference]: Finished difference Result 570 states and 860 transitions. [2019-09-08 11:44:11,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:11,990 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2019-09-08 11:44:11,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:11,996 INFO L225 Difference]: With dead ends: 570 [2019-09-08 11:44:11,996 INFO L226 Difference]: Without dead ends: 306 [2019-09-08 11:44:12,002 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:44:12,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 306 states. [2019-09-08 11:44:12,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 306 to 306. [2019-09-08 11:44:12,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2019-09-08 11:44:12,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 447 transitions. [2019-09-08 11:44:12,059 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 447 transitions. Word has length 69 [2019-09-08 11:44:12,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:12,060 INFO L475 AbstractCegarLoop]: Abstraction has 306 states and 447 transitions. [2019-09-08 11:44:12,061 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:12,061 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 447 transitions. [2019-09-08 11:44:12,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-08 11:44:12,072 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:12,072 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:12,073 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:12,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:12,075 INFO L82 PathProgramCache]: Analyzing trace with hash -1001586053, now seen corresponding path program 1 times [2019-09-08 11:44:12,076 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:12,076 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:12,079 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,079 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:12,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:12,324 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 11:44:12,325 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:12,325 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:44:12,326 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:44:12,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:44:12,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:44:12,326 INFO L87 Difference]: Start difference. First operand 306 states and 447 transitions. Second operand 6 states. [2019-09-08 11:44:12,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:12,550 INFO L93 Difference]: Finished difference Result 756 states and 1135 transitions. [2019-09-08 11:44:12,550 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:12,550 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 70 [2019-09-08 11:44:12,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:12,554 INFO L225 Difference]: With dead ends: 756 [2019-09-08 11:44:12,555 INFO L226 Difference]: Without dead ends: 496 [2019-09-08 11:44:12,556 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=31, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:44:12,557 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2019-09-08 11:44:12,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 494. [2019-09-08 11:44:12,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-09-08 11:44:12,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 730 transitions. [2019-09-08 11:44:12,597 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 730 transitions. Word has length 70 [2019-09-08 11:44:12,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:12,598 INFO L475 AbstractCegarLoop]: Abstraction has 494 states and 730 transitions. [2019-09-08 11:44:12,598 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:44:12,598 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 730 transitions. [2019-09-08 11:44:12,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-08 11:44:12,599 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:12,600 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:12,600 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:12,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:12,601 INFO L82 PathProgramCache]: Analyzing trace with hash -1407383114, now seen corresponding path program 1 times [2019-09-08 11:44:12,601 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:12,601 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:12,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,603 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:12,603 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:12,702 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 11:44:12,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:12,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:12,703 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:12,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:12,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:12,704 INFO L87 Difference]: Start difference. First operand 494 states and 730 transitions. Second operand 5 states. [2019-09-08 11:44:12,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:12,883 INFO L93 Difference]: Finished difference Result 950 states and 1421 transitions. [2019-09-08 11:44:12,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:12,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-08 11:44:12,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:12,887 INFO L225 Difference]: With dead ends: 950 [2019-09-08 11:44:12,887 INFO L226 Difference]: Without dead ends: 494 [2019-09-08 11:44:12,889 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:44:12,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2019-09-08 11:44:12,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 494. [2019-09-08 11:44:12,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 494 states. [2019-09-08 11:44:12,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 494 states to 494 states and 721 transitions. [2019-09-08 11:44:12,924 INFO L78 Accepts]: Start accepts. Automaton has 494 states and 721 transitions. Word has length 71 [2019-09-08 11:44:12,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:12,924 INFO L475 AbstractCegarLoop]: Abstraction has 494 states and 721 transitions. [2019-09-08 11:44:12,924 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:12,924 INFO L276 IsEmpty]: Start isEmpty. Operand 494 states and 721 transitions. [2019-09-08 11:44:12,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:12,925 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:12,926 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:12,926 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:12,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:12,926 INFO L82 PathProgramCache]: Analyzing trace with hash -1356671875, now seen corresponding path program 1 times [2019-09-08 11:44:12,927 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:12,927 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:12,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:12,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:12,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:13,074 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 11:44:13,074 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:13,074 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:13,075 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:13,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:13,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:13,076 INFO L87 Difference]: Start difference. First operand 494 states and 721 transitions. Second operand 5 states. [2019-09-08 11:44:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:13,226 INFO L93 Difference]: Finished difference Result 1373 states and 2046 transitions. [2019-09-08 11:44:13,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:13,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-09-08 11:44:13,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:13,235 INFO L225 Difference]: With dead ends: 1373 [2019-09-08 11:44:13,235 INFO L226 Difference]: Without dead ends: 999 [2019-09-08 11:44:13,237 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:44:13,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2019-09-08 11:44:13,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 683. [2019-09-08 11:44:13,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 683 states. [2019-09-08 11:44:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 683 states to 683 states and 1009 transitions. [2019-09-08 11:44:13,293 INFO L78 Accepts]: Start accepts. Automaton has 683 states and 1009 transitions. Word has length 72 [2019-09-08 11:44:13,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:13,295 INFO L475 AbstractCegarLoop]: Abstraction has 683 states and 1009 transitions. [2019-09-08 11:44:13,295 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:13,296 INFO L276 IsEmpty]: Start isEmpty. Operand 683 states and 1009 transitions. [2019-09-08 11:44:13,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:13,302 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:13,302 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:13,302 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:13,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:13,303 INFO L82 PathProgramCache]: Analyzing trace with hash -1297238062, now seen corresponding path program 1 times [2019-09-08 11:44:13,303 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:13,306 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:13,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:13,311 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:13,311 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:13,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:13,428 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 11:44:13,428 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:13,428 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:13,429 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:13,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:13,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:13,430 INFO L87 Difference]: Start difference. First operand 683 states and 1009 transitions. Second operand 5 states. [2019-09-08 11:44:13,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:13,600 INFO L93 Difference]: Finished difference Result 1929 states and 2894 transitions. [2019-09-08 11:44:13,600 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:13,601 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-09-08 11:44:13,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:13,608 INFO L225 Difference]: With dead ends: 1929 [2019-09-08 11:44:13,608 INFO L226 Difference]: Without dead ends: 1361 [2019-09-08 11:44:13,610 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:44:13,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1361 states. [2019-09-08 11:44:13,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1361 to 1109. [2019-09-08 11:44:13,708 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1109 states. [2019-09-08 11:44:13,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1109 states to 1109 states and 1657 transitions. [2019-09-08 11:44:13,715 INFO L78 Accepts]: Start accepts. Automaton has 1109 states and 1657 transitions. Word has length 72 [2019-09-08 11:44:13,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:13,716 INFO L475 AbstractCegarLoop]: Abstraction has 1109 states and 1657 transitions. [2019-09-08 11:44:13,716 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:13,716 INFO L276 IsEmpty]: Start isEmpty. Operand 1109 states and 1657 transitions. [2019-09-08 11:44:13,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:13,718 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:13,718 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:13,719 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:13,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:13,719 INFO L82 PathProgramCache]: Analyzing trace with hash 1086026633, now seen corresponding path program 1 times [2019-09-08 11:44:13,719 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:13,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:13,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:13,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:13,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:13,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:13,778 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 11:44:13,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:13,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:44:13,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:44:13,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:44:13,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:13,780 INFO L87 Difference]: Start difference. First operand 1109 states and 1657 transitions. Second operand 3 states. [2019-09-08 11:44:13,941 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:13,941 INFO L93 Difference]: Finished difference Result 2897 states and 4335 transitions. [2019-09-08 11:44:13,941 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:44:13,941 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2019-09-08 11:44:13,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:13,952 INFO L225 Difference]: With dead ends: 2897 [2019-09-08 11:44:13,952 INFO L226 Difference]: Without dead ends: 1941 [2019-09-08 11:44:13,955 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:13,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2019-09-08 11:44:14,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1939. [2019-09-08 11:44:14,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2019-09-08 11:44:14,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2849 transitions. [2019-09-08 11:44:14,106 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2849 transitions. Word has length 72 [2019-09-08 11:44:14,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:14,107 INFO L475 AbstractCegarLoop]: Abstraction has 1939 states and 2849 transitions. [2019-09-08 11:44:14,107 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:44:14,107 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2849 transitions. [2019-09-08 11:44:14,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:14,109 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:14,109 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:14,109 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:14,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:14,110 INFO L82 PathProgramCache]: Analyzing trace with hash 1254792648, now seen corresponding path program 1 times [2019-09-08 11:44:14,110 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:14,110 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:14,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:14,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:14,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:14,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:14,173 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 11:44:14,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:14,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:44:14,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:44:14,174 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:44:14,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:14,175 INFO L87 Difference]: Start difference. First operand 1939 states and 2849 transitions. Second operand 3 states. [2019-09-08 11:44:14,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:14,371 INFO L93 Difference]: Finished difference Result 3727 states and 5495 transitions. [2019-09-08 11:44:14,371 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:44:14,371 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 72 [2019-09-08 11:44:14,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:14,382 INFO L225 Difference]: With dead ends: 3727 [2019-09-08 11:44:14,382 INFO L226 Difference]: Without dead ends: 1941 [2019-09-08 11:44:14,386 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:44:14,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1941 states. [2019-09-08 11:44:14,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1941 to 1939. [2019-09-08 11:44:14,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1939 states. [2019-09-08 11:44:14,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 2841 transitions. [2019-09-08 11:44:14,515 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 2841 transitions. Word has length 72 [2019-09-08 11:44:14,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:14,516 INFO L475 AbstractCegarLoop]: Abstraction has 1939 states and 2841 transitions. [2019-09-08 11:44:14,516 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:44:14,516 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 2841 transitions. [2019-09-08 11:44:14,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:14,518 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:14,518 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:14,518 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:14,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:14,518 INFO L82 PathProgramCache]: Analyzing trace with hash -316518681, now seen corresponding path program 1 times [2019-09-08 11:44:14,519 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:14,519 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:14,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:14,520 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:14,520 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:14,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:14,620 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 11:44:14,620 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:14,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:44:14,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:44:14,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:44:14,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:44:14,622 INFO L87 Difference]: Start difference. First operand 1939 states and 2841 transitions. Second operand 6 states. [2019-09-08 11:44:15,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:15,187 INFO L93 Difference]: Finished difference Result 7717 states and 11348 transitions. [2019-09-08 11:44:15,188 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:44:15,188 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 72 [2019-09-08 11:44:15,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:15,226 INFO L225 Difference]: With dead ends: 7717 [2019-09-08 11:44:15,226 INFO L226 Difference]: Without dead ends: 5931 [2019-09-08 11:44:15,237 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:44:15,244 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5931 states. [2019-09-08 11:44:15,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5931 to 2665. [2019-09-08 11:44:15,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2665 states. [2019-09-08 11:44:15,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 3907 transitions. [2019-09-08 11:44:15,555 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 3907 transitions. Word has length 72 [2019-09-08 11:44:15,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:15,556 INFO L475 AbstractCegarLoop]: Abstraction has 2665 states and 3907 transitions. [2019-09-08 11:44:15,556 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:44:15,556 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 3907 transitions. [2019-09-08 11:44:15,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-09-08 11:44:15,559 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:15,559 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:15,560 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:15,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:15,560 INFO L82 PathProgramCache]: Analyzing trace with hash -413972804, now seen corresponding path program 1 times [2019-09-08 11:44:15,560 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:15,561 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:15,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:15,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:15,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:15,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:15,655 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 11:44:15,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:15,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:15,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:15,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:15,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:15,657 INFO L87 Difference]: Start difference. First operand 2665 states and 3907 transitions. Second operand 5 states. [2019-09-08 11:44:15,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:15,971 INFO L93 Difference]: Finished difference Result 5325 states and 7826 transitions. [2019-09-08 11:44:15,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:44:15,972 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 72 [2019-09-08 11:44:15,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:15,990 INFO L225 Difference]: With dead ends: 5325 [2019-09-08 11:44:15,991 INFO L226 Difference]: Without dead ends: 3539 [2019-09-08 11:44:15,997 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:44:16,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2019-09-08 11:44:16,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3037. [2019-09-08 11:44:16,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-09-08 11:44:16,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4457 transitions. [2019-09-08 11:44:16,263 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4457 transitions. Word has length 72 [2019-09-08 11:44:16,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:16,263 INFO L475 AbstractCegarLoop]: Abstraction has 3037 states and 4457 transitions. [2019-09-08 11:44:16,263 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:44:16,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4457 transitions. [2019-09-08 11:44:16,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-09-08 11:44:16,265 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:16,265 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:16,265 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:16,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:16,266 INFO L82 PathProgramCache]: Analyzing trace with hash -534576289, now seen corresponding path program 1 times [2019-09-08 11:44:16,266 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:16,266 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:16,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:16,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:16,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:16,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:16,507 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 11:44:16,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:16,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 11:44:16,508 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 11:44:16,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 11:44:16,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-08 11:44:16,509 INFO L87 Difference]: Start difference. First operand 3037 states and 4457 transitions. Second operand 10 states. [2019-09-08 11:44:17,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:17,856 INFO L93 Difference]: Finished difference Result 8959 states and 13123 transitions. [2019-09-08 11:44:17,856 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 11:44:17,856 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 73 [2019-09-08 11:44:17,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:17,884 INFO L225 Difference]: With dead ends: 8959 [2019-09-08 11:44:17,885 INFO L226 Difference]: Without dead ends: 6080 [2019-09-08 11:44:17,891 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:44:17,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6080 states. [2019-09-08 11:44:18,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6080 to 3037. [2019-09-08 11:44:18,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-09-08 11:44:18,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4448 transitions. [2019-09-08 11:44:18,304 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4448 transitions. Word has length 73 [2019-09-08 11:44:18,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:18,305 INFO L475 AbstractCegarLoop]: Abstraction has 3037 states and 4448 transitions. [2019-09-08 11:44:18,305 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 11:44:18,305 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4448 transitions. [2019-09-08 11:44:18,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-08 11:44:18,306 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:18,307 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:18,307 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:18,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:18,308 INFO L82 PathProgramCache]: Analyzing trace with hash -558530542, now seen corresponding path program 1 times [2019-09-08 11:44:18,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:18,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:18,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:18,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:18,310 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:18,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:18,506 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 11:44:18,506 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:18,506 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:44:18,506 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:44:18,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:44:18,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:44:18,507 INFO L87 Difference]: Start difference. First operand 3037 states and 4448 transitions. Second operand 9 states. [2019-09-08 11:44:19,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:19,395 INFO L93 Difference]: Finished difference Result 7403 states and 10875 transitions. [2019-09-08 11:44:19,395 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 11:44:19,395 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 74 [2019-09-08 11:44:19,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:19,415 INFO L225 Difference]: With dead ends: 7403 [2019-09-08 11:44:19,415 INFO L226 Difference]: Without dead ends: 4489 [2019-09-08 11:44:19,421 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2019-09-08 11:44:19,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4489 states. [2019-09-08 11:44:19,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4489 to 3037. [2019-09-08 11:44:19,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-09-08 11:44:19,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4447 transitions. [2019-09-08 11:44:19,747 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4447 transitions. Word has length 74 [2019-09-08 11:44:19,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:19,747 INFO L475 AbstractCegarLoop]: Abstraction has 3037 states and 4447 transitions. [2019-09-08 11:44:19,747 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:44:19,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4447 transitions. [2019-09-08 11:44:19,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2019-09-08 11:44:19,749 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:19,749 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:19,749 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:19,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:19,750 INFO L82 PathProgramCache]: Analyzing trace with hash -862822767, now seen corresponding path program 1 times [2019-09-08 11:44:19,750 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:19,750 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:19,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:19,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:19,751 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:19,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:19,928 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 11:44:19,928 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:19,928 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 11:44:19,928 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 11:44:19,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 11:44:19,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-08 11:44:19,929 INFO L87 Difference]: Start difference. First operand 3037 states and 4447 transitions. Second operand 10 states. [2019-09-08 11:44:21,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:21,167 INFO L93 Difference]: Finished difference Result 9010 states and 13179 transitions. [2019-09-08 11:44:21,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 11:44:21,173 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 74 [2019-09-08 11:44:21,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:21,189 INFO L225 Difference]: With dead ends: 9010 [2019-09-08 11:44:21,189 INFO L226 Difference]: Without dead ends: 6095 [2019-09-08 11:44:21,196 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=122, Invalid=340, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:44:21,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6095 states. [2019-09-08 11:44:21,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6095 to 3037. [2019-09-08 11:44:21,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-09-08 11:44:21,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4441 transitions. [2019-09-08 11:44:21,614 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4441 transitions. Word has length 74 [2019-09-08 11:44:21,614 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:21,614 INFO L475 AbstractCegarLoop]: Abstraction has 3037 states and 4441 transitions. [2019-09-08 11:44:21,615 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 11:44:21,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4441 transitions. [2019-09-08 11:44:21,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-08 11:44:21,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:21,616 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:21,616 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:21,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:21,616 INFO L82 PathProgramCache]: Analyzing trace with hash 551115414, now seen corresponding path program 1 times [2019-09-08 11:44:21,616 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:21,616 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:21,617 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:21,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:21,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:21,804 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 11:44:21,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:21,804 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 11:44:21,805 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 11:44:21,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 11:44:21,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 11:44:21,805 INFO L87 Difference]: Start difference. First operand 3037 states and 4441 transitions. Second operand 10 states. [2019-09-08 11:44:23,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:23,413 INFO L93 Difference]: Finished difference Result 8636 states and 12619 transitions. [2019-09-08 11:44:23,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 11:44:23,413 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 75 [2019-09-08 11:44:23,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:23,426 INFO L225 Difference]: With dead ends: 8636 [2019-09-08 11:44:23,426 INFO L226 Difference]: Without dead ends: 5706 [2019-09-08 11:44:23,433 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=140, Invalid=412, Unknown=0, NotChecked=0, Total=552 [2019-09-08 11:44:23,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5706 states. [2019-09-08 11:44:23,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5706 to 3037. [2019-09-08 11:44:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3037 states. [2019-09-08 11:44:23,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3037 states to 3037 states and 4438 transitions. [2019-09-08 11:44:23,798 INFO L78 Accepts]: Start accepts. Automaton has 3037 states and 4438 transitions. Word has length 75 [2019-09-08 11:44:23,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:23,798 INFO L475 AbstractCegarLoop]: Abstraction has 3037 states and 4438 transitions. [2019-09-08 11:44:23,798 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 11:44:23,799 INFO L276 IsEmpty]: Start isEmpty. Operand 3037 states and 4438 transitions. [2019-09-08 11:44:23,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-08 11:44:23,800 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:23,800 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:23,800 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:23,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:23,801 INFO L82 PathProgramCache]: Analyzing trace with hash -1743128931, now seen corresponding path program 1 times [2019-09-08 11:44:23,801 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:23,801 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:23,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:23,802 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:23,802 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:25,551 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 11:44:25,551 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:25,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2019-09-08 11:44:25,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 11:44:25,552 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 11:44:25,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=490, Unknown=0, NotChecked=0, Total=552 [2019-09-08 11:44:25,553 INFO L87 Difference]: Start difference. First operand 3037 states and 4438 transitions. Second operand 24 states. [2019-09-08 11:44:25,707 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2019-09-08 11:44:26,334 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 41 [2019-09-08 11:44:26,478 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 39 [2019-09-08 11:44:26,692 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 11:44:26,970 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-08 11:44:27,259 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-08 11:44:27,625 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-08 11:44:28,173 WARN L188 SmtUtils]: Spent 484.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 109 [2019-09-08 11:44:28,739 WARN L188 SmtUtils]: Spent 503.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 128 [2019-09-08 11:44:29,043 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-08 11:44:29,321 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 74 [2019-09-08 11:44:29,669 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-08 11:44:29,999 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-08 11:44:30,202 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:44:30,366 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:44:30,526 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:44:30,855 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-08 11:44:31,219 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 11:44:31,551 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 11:44:31,907 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 11:44:35,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:35,547 INFO L93 Difference]: Finished difference Result 17523 states and 25772 transitions. [2019-09-08 11:44:35,548 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2019-09-08 11:44:35,548 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 76 [2019-09-08 11:44:35,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:35,583 INFO L225 Difference]: With dead ends: 17523 [2019-09-08 11:44:35,583 INFO L226 Difference]: Without dead ends: 15374 [2019-09-08 11:44:35,591 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 506 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=546, Invalid=2210, Unknown=0, NotChecked=0, Total=2756 [2019-09-08 11:44:35,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15374 states. [2019-09-08 11:44:36,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15374 to 3041. [2019-09-08 11:44:36,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3041 states. [2019-09-08 11:44:36,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3041 states to 3041 states and 4440 transitions. [2019-09-08 11:44:36,163 INFO L78 Accepts]: Start accepts. Automaton has 3041 states and 4440 transitions. Word has length 76 [2019-09-08 11:44:36,164 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:36,164 INFO L475 AbstractCegarLoop]: Abstraction has 3041 states and 4440 transitions. [2019-09-08 11:44:36,164 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 11:44:36,164 INFO L276 IsEmpty]: Start isEmpty. Operand 3041 states and 4440 transitions. [2019-09-08 11:44:36,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-08 11:44:36,165 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:36,166 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:36,166 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:36,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:36,166 INFO L82 PathProgramCache]: Analyzing trace with hash -1066393092, now seen corresponding path program 1 times [2019-09-08 11:44:36,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:36,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:36,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:36,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:36,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:36,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:37,209 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 11:44:37,209 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:37,209 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-08 11:44:37,209 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 11:44:37,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 11:44:37,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-08 11:44:37,210 INFO L87 Difference]: Start difference. First operand 3041 states and 4440 transitions. Second operand 19 states. [2019-09-08 11:44:37,735 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 40 [2019-09-08 11:44:37,928 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:44:38,310 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 79 [2019-09-08 11:44:38,735 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-08 11:44:38,898 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:44:39,275 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:44:39,584 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-08 11:44:39,754 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-08 11:44:39,997 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-08 11:44:42,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:42,558 INFO L93 Difference]: Finished difference Result 14585 states and 21434 transitions. [2019-09-08 11:44:42,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 11:44:42,559 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 76 [2019-09-08 11:44:42,559 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:42,580 INFO L225 Difference]: With dead ends: 14585 [2019-09-08 11:44:42,581 INFO L226 Difference]: Without dead ends: 12406 [2019-09-08 11:44:42,588 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 11:44:42,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12406 states. [2019-09-08 11:44:43,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12406 to 3035. [2019-09-08 11:44:43,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3035 states. [2019-09-08 11:44:43,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3035 states to 3035 states and 4426 transitions. [2019-09-08 11:44:43,162 INFO L78 Accepts]: Start accepts. Automaton has 3035 states and 4426 transitions. Word has length 76 [2019-09-08 11:44:43,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:43,163 INFO L475 AbstractCegarLoop]: Abstraction has 3035 states and 4426 transitions. [2019-09-08 11:44:43,163 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 11:44:43,163 INFO L276 IsEmpty]: Start isEmpty. Operand 3035 states and 4426 transitions. [2019-09-08 11:44:43,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2019-09-08 11:44:43,164 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:43,165 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:43,165 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:43,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:43,165 INFO L82 PathProgramCache]: Analyzing trace with hash -1096969605, now seen corresponding path program 1 times [2019-09-08 11:44:43,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:43,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:43,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:43,167 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:43,167 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:43,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:44,451 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 11:44:44,451 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:44,452 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2019-09-08 11:44:44,452 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 11:44:44,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 11:44:44,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=408, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:44:44,453 INFO L87 Difference]: Start difference. First operand 3035 states and 4426 transitions. Second operand 22 states. [2019-09-08 11:44:45,101 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 35 [2019-09-08 11:44:45,334 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-08 11:44:45,545 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 56 [2019-09-08 11:44:45,823 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2019-09-08 11:44:46,124 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 75 [2019-09-08 11:44:46,483 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 85 [2019-09-08 11:44:46,692 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 11:44:46,911 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 11:44:47,210 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:44:47,489 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 11:44:47,723 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 11:44:48,032 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-08 11:44:48,284 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 53 [2019-09-08 11:44:51,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:51,744 INFO L93 Difference]: Finished difference Result 11018 states and 16161 transitions. [2019-09-08 11:44:51,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-09-08 11:44:51,744 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 76 [2019-09-08 11:44:51,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:51,756 INFO L225 Difference]: With dead ends: 11018 [2019-09-08 11:44:51,757 INFO L226 Difference]: Without dead ends: 8859 [2019-09-08 11:44:51,763 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 269 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=392, Invalid=1414, Unknown=0, NotChecked=0, Total=1806 [2019-09-08 11:44:51,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8859 states. [2019-09-08 11:44:52,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8859 to 3040. [2019-09-08 11:44:52,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3040 states. [2019-09-08 11:44:52,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3040 states to 3040 states and 4431 transitions. [2019-09-08 11:44:52,455 INFO L78 Accepts]: Start accepts. Automaton has 3040 states and 4431 transitions. Word has length 76 [2019-09-08 11:44:52,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:52,455 INFO L475 AbstractCegarLoop]: Abstraction has 3040 states and 4431 transitions. [2019-09-08 11:44:52,455 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 11:44:52,456 INFO L276 IsEmpty]: Start isEmpty. Operand 3040 states and 4431 transitions. [2019-09-08 11:44:52,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:44:52,457 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:52,457 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:52,457 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:52,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:52,458 INFO L82 PathProgramCache]: Analyzing trace with hash -1433675777, now seen corresponding path program 1 times [2019-09-08 11:44:52,458 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:52,458 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:52,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:52,459 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:52,459 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:52,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:52,942 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 11:44:52,943 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:52,943 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-08 11:44:52,945 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 11:44:52,946 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 11:44:52,946 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-08 11:44:52,946 INFO L87 Difference]: Start difference. First operand 3040 states and 4431 transitions. Second operand 13 states. [2019-09-08 11:44:53,331 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 37 [2019-09-08 11:44:53,504 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-08 11:44:53,693 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 48 [2019-09-08 11:44:53,842 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-08 11:44:53,996 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 41 [2019-09-08 11:44:54,137 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 43 [2019-09-08 11:44:54,382 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 40 [2019-09-08 11:44:56,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:56,127 INFO L93 Difference]: Finished difference Result 10254 states and 15041 transitions. [2019-09-08 11:44:56,127 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 11:44:56,127 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 77 [2019-09-08 11:44:56,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:56,137 INFO L225 Difference]: With dead ends: 10254 [2019-09-08 11:44:56,138 INFO L226 Difference]: Without dead ends: 8071 [2019-09-08 11:44:56,143 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2019-09-08 11:44:56,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8071 states. [2019-09-08 11:44:56,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8071 to 3005. [2019-09-08 11:44:56,845 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3005 states. [2019-09-08 11:44:56,848 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3005 states to 3005 states and 4387 transitions. [2019-09-08 11:44:56,848 INFO L78 Accepts]: Start accepts. Automaton has 3005 states and 4387 transitions. Word has length 77 [2019-09-08 11:44:56,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:56,848 INFO L475 AbstractCegarLoop]: Abstraction has 3005 states and 4387 transitions. [2019-09-08 11:44:56,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 11:44:56,848 INFO L276 IsEmpty]: Start isEmpty. Operand 3005 states and 4387 transitions. [2019-09-08 11:44:56,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:44:56,849 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:56,849 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:56,849 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:56,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:56,850 INFO L82 PathProgramCache]: Analyzing trace with hash -1127829965, now seen corresponding path program 1 times [2019-09-08 11:44:56,850 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:56,850 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:56,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:56,851 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:56,851 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:56,909 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 11:44:56,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:56,910 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 11:44:56,910 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 11:44:56,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 11:44:56,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-08 11:44:56,911 INFO L87 Difference]: Start difference. First operand 3005 states and 4387 transitions. Second operand 4 states. [2019-09-08 11:44:57,789 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:57,789 INFO L93 Difference]: Finished difference Result 7152 states and 10506 transitions. [2019-09-08 11:44:57,789 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 11:44:57,789 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 77 [2019-09-08 11:44:57,790 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:57,794 INFO L225 Difference]: With dead ends: 7152 [2019-09-08 11:44:57,794 INFO L226 Difference]: Without dead ends: 4282 [2019-09-08 11:44:57,801 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-08 11:44:57,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4282 states. [2019-09-08 11:44:58,693 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4282 to 4280. [2019-09-08 11:44:58,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4280 states. [2019-09-08 11:44:58,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4280 states to 4280 states and 6238 transitions. [2019-09-08 11:44:58,698 INFO L78 Accepts]: Start accepts. Automaton has 4280 states and 6238 transitions. Word has length 77 [2019-09-08 11:44:58,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:44:58,698 INFO L475 AbstractCegarLoop]: Abstraction has 4280 states and 6238 transitions. [2019-09-08 11:44:58,699 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 11:44:58,699 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states and 6238 transitions. [2019-09-08 11:44:58,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:44:58,700 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:44:58,700 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:44:58,700 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:44:58,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:44:58,700 INFO L82 PathProgramCache]: Analyzing trace with hash -351296585, now seen corresponding path program 1 times [2019-09-08 11:44:58,700 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:44:58,701 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:44:58,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:58,702 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:44:58,702 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:44:58,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:44:58,773 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 11:44:58,773 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:44:58,774 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:44:58,775 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:44:58,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:44:58,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:44:58,776 INFO L87 Difference]: Start difference. First operand 4280 states and 6238 transitions. Second operand 5 states. [2019-09-08 11:45:00,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:00,704 INFO L93 Difference]: Finished difference Result 6868 states and 9983 transitions. [2019-09-08 11:45:00,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:45:00,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2019-09-08 11:45:00,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:00,710 INFO L225 Difference]: With dead ends: 6868 [2019-09-08 11:45:00,710 INFO L226 Difference]: Without dead ends: 6866 [2019-09-08 11:45:00,712 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 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 11:45:00,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6866 states. [2019-09-08 11:45:01,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6866 to 4320. [2019-09-08 11:45:01,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4320 states. [2019-09-08 11:45:01,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4320 states to 4320 states and 6262 transitions. [2019-09-08 11:45:01,561 INFO L78 Accepts]: Start accepts. Automaton has 4320 states and 6262 transitions. Word has length 77 [2019-09-08 11:45:01,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:01,561 INFO L475 AbstractCegarLoop]: Abstraction has 4320 states and 6262 transitions. [2019-09-08 11:45:01,561 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:45:01,561 INFO L276 IsEmpty]: Start isEmpty. Operand 4320 states and 6262 transitions. [2019-09-08 11:45:01,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:45:01,562 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:01,562 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:01,562 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:01,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:01,562 INFO L82 PathProgramCache]: Analyzing trace with hash 1786573686, now seen corresponding path program 1 times [2019-09-08 11:45:01,562 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:01,562 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:01,563 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:01,564 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:01,564 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:01,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:02,136 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 11:45:02,136 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:02,137 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-08 11:45:02,137 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 11:45:02,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 11:45:02,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:45:02,137 INFO L87 Difference]: Start difference. First operand 4320 states and 6262 transitions. Second operand 14 states. [2019-09-08 11:45:02,703 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-09-08 11:45:02,911 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 11:45:03,121 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 11:45:03,316 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 11:45:03,612 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 55 [2019-09-08 11:45:03,922 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-08 11:45:08,049 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:08,049 INFO L93 Difference]: Finished difference Result 20997 states and 30599 transitions. [2019-09-08 11:45:08,051 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 11:45:08,051 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 77 [2019-09-08 11:45:08,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:08,069 INFO L225 Difference]: With dead ends: 20997 [2019-09-08 11:45:08,069 INFO L226 Difference]: Without dead ends: 16893 [2019-09-08 11:45:08,077 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=179, Invalid=523, Unknown=0, NotChecked=0, Total=702 [2019-09-08 11:45:08,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16893 states. [2019-09-08 11:45:09,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16893 to 4317. [2019-09-08 11:45:09,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4317 states. [2019-09-08 11:45:09,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4317 states to 4317 states and 6255 transitions. [2019-09-08 11:45:09,171 INFO L78 Accepts]: Start accepts. Automaton has 4317 states and 6255 transitions. Word has length 77 [2019-09-08 11:45:09,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:09,171 INFO L475 AbstractCegarLoop]: Abstraction has 4317 states and 6255 transitions. [2019-09-08 11:45:09,171 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 11:45:09,171 INFO L276 IsEmpty]: Start isEmpty. Operand 4317 states and 6255 transitions. [2019-09-08 11:45:09,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-08 11:45:09,172 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:09,172 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:09,172 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:09,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:09,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1990630795, now seen corresponding path program 1 times [2019-09-08 11:45:09,173 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:09,173 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:09,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:09,173 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:09,173 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:09,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:09,526 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-09-08 11:45:09,787 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 11:45:10,003 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 11:45:10,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:10,004 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-08 11:45:10,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 11:45:10,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 11:45:10,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:45:10,004 INFO L87 Difference]: Start difference. First operand 4317 states and 6255 transitions. Second operand 14 states. [2019-09-08 11:45:10,587 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:45:10,737 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:45:10,881 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 11:45:11,090 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 11:45:11,296 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-09-08 11:45:15,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:15,921 INFO L93 Difference]: Finished difference Result 19962 states and 29082 transitions. [2019-09-08 11:45:15,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 11:45:15,921 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 78 [2019-09-08 11:45:15,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:15,938 INFO L225 Difference]: With dead ends: 19962 [2019-09-08 11:45:15,938 INFO L226 Difference]: Without dead ends: 16919 [2019-09-08 11:45:15,945 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 80 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2019-09-08 11:45:15,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16919 states. [2019-09-08 11:45:17,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16919 to 4297. [2019-09-08 11:45:17,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4297 states. [2019-09-08 11:45:17,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6231 transitions. [2019-09-08 11:45:17,269 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6231 transitions. Word has length 78 [2019-09-08 11:45:17,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:17,269 INFO L475 AbstractCegarLoop]: Abstraction has 4297 states and 6231 transitions. [2019-09-08 11:45:17,269 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 11:45:17,270 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6231 transitions. [2019-09-08 11:45:17,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-08 11:45:17,270 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:17,271 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:17,271 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:17,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:17,271 INFO L82 PathProgramCache]: Analyzing trace with hash -692602443, now seen corresponding path program 1 times [2019-09-08 11:45:17,271 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:17,271 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:17,272 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:17,273 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:17,273 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:17,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:18,497 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-09-08 11:45:19,002 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 11:45:19,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:19,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [25] imperfect sequences [] total 25 [2019-09-08 11:45:19,003 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 11:45:19,003 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 11:45:19,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=536, Unknown=0, NotChecked=0, Total=600 [2019-09-08 11:45:19,004 INFO L87 Difference]: Start difference. First operand 4297 states and 6231 transitions. Second operand 25 states. [2019-09-08 11:45:19,158 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:45:19,672 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 11:45:19,875 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 42 [2019-09-08 11:45:20,154 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-08 11:45:20,392 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:45:20,671 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-08 11:45:20,942 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-08 11:45:21,234 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 77 [2019-09-08 11:45:21,673 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 100 [2019-09-08 11:45:21,948 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-08 11:45:22,226 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2019-09-08 11:45:22,389 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 11:45:22,683 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-08 11:45:22,832 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-08 11:45:23,133 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2019-09-08 11:45:23,411 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:45:23,749 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 11:45:23,951 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:45:24,173 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-08 11:45:24,427 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 11:45:29,007 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:45:40,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:40,440 INFO L93 Difference]: Finished difference Result 42210 states and 61514 transitions. [2019-09-08 11:45:40,441 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2019-09-08 11:45:40,441 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 78 [2019-09-08 11:45:40,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:40,480 INFO L225 Difference]: With dead ends: 42210 [2019-09-08 11:45:40,480 INFO L226 Difference]: Without dead ends: 39523 [2019-09-08 11:45:40,492 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 632 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=513, Invalid=2457, Unknown=0, NotChecked=0, Total=2970 [2019-09-08 11:45:40,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39523 states. [2019-09-08 11:45:42,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39523 to 4301. [2019-09-08 11:45:42,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4301 states. [2019-09-08 11:45:42,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4301 states to 4301 states and 6235 transitions. [2019-09-08 11:45:42,194 INFO L78 Accepts]: Start accepts. Automaton has 4301 states and 6235 transitions. Word has length 78 [2019-09-08 11:45:42,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:42,194 INFO L475 AbstractCegarLoop]: Abstraction has 4301 states and 6235 transitions. [2019-09-08 11:45:42,194 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 11:45:42,194 INFO L276 IsEmpty]: Start isEmpty. Operand 4301 states and 6235 transitions. [2019-09-08 11:45:42,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-08 11:45:42,195 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:42,195 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:42,195 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:42,196 INFO L82 PathProgramCache]: Analyzing trace with hash -911326508, now seen corresponding path program 1 times [2019-09-08 11:45:42,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:42,196 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:42,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:42,197 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:42,197 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:42,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:42,999 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 11:45:43,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:43,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-08 11:45:43,001 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 11:45:43,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 11:45:43,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-08 11:45:43,002 INFO L87 Difference]: Start difference. First operand 4301 states and 6235 transitions. Second operand 16 states. [2019-09-08 11:45:43,524 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2019-09-08 11:45:43,678 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:45:43,880 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 55 [2019-09-08 11:45:44,039 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:45:44,196 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:45:44,420 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 11:45:44,621 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-08 11:45:44,798 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-08 11:45:49,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:49,469 INFO L93 Difference]: Finished difference Result 13581 states and 19775 transitions. [2019-09-08 11:45:49,469 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 11:45:49,469 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 78 [2019-09-08 11:45:49,469 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:49,481 INFO L225 Difference]: With dead ends: 13581 [2019-09-08 11:45:49,481 INFO L226 Difference]: Without dead ends: 10883 [2019-09-08 11:45:49,487 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=217, Invalid=713, Unknown=0, NotChecked=0, Total=930 [2019-09-08 11:45:49,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10883 states. [2019-09-08 11:45:51,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10883 to 4297. [2019-09-08 11:45:51,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4297 states. [2019-09-08 11:45:51,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4297 states to 4297 states and 6230 transitions. [2019-09-08 11:45:51,093 INFO L78 Accepts]: Start accepts. Automaton has 4297 states and 6230 transitions. Word has length 78 [2019-09-08 11:45:51,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:51,093 INFO L475 AbstractCegarLoop]: Abstraction has 4297 states and 6230 transitions. [2019-09-08 11:45:51,093 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 11:45:51,093 INFO L276 IsEmpty]: Start isEmpty. Operand 4297 states and 6230 transitions. [2019-09-08 11:45:51,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-08 11:45:51,094 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:51,094 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:45:51,094 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:51,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:51,094 INFO L82 PathProgramCache]: Analyzing trace with hash -249763912, now seen corresponding path program 1 times [2019-09-08 11:45:51,095 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:51,095 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:51,095 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:51,096 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:51,096 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:51,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:51,701 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 11:45:51,702 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:51,702 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-08 11:45:51,704 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 11:45:51,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 11:45:51,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-08 11:45:51,705 INFO L87 Difference]: Start difference. First operand 4297 states and 6230 transitions. Second operand 12 states. [2019-09-08 11:45:52,295 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:45:52,502 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:45:52,716 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:45:52,894 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2019-09-08 11:45:53,085 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-08 11:45:53,280 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 11:45:53,459 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 52 [2019-09-08 11:45:53,663 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:45:53,860 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-08 11:45:54,055 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-08 11:46:00,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:00,693 INFO L93 Difference]: Finished difference Result 19911 states and 29079 transitions. [2019-09-08 11:46:00,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 11:46:00,693 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 79 [2019-09-08 11:46:00,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:00,713 INFO L225 Difference]: With dead ends: 19911 [2019-09-08 11:46:00,713 INFO L226 Difference]: Without dead ends: 17204 [2019-09-08 11:46:00,719 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=200, Invalid=502, Unknown=0, NotChecked=0, Total=702 [2019-09-08 11:46:00,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17204 states. [2019-09-08 11:46:02,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17204 to 4191. [2019-09-08 11:46:02,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4191 states. [2019-09-08 11:46:02,452 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4191 states to 4191 states and 6083 transitions. [2019-09-08 11:46:02,453 INFO L78 Accepts]: Start accepts. Automaton has 4191 states and 6083 transitions. Word has length 79 [2019-09-08 11:46:02,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:02,453 INFO L475 AbstractCegarLoop]: Abstraction has 4191 states and 6083 transitions. [2019-09-08 11:46:02,453 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 11:46:02,453 INFO L276 IsEmpty]: Start isEmpty. Operand 4191 states and 6083 transitions. [2019-09-08 11:46:02,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-08 11:46:02,456 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:02,460 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:02,460 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:02,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:02,460 INFO L82 PathProgramCache]: Analyzing trace with hash -252969834, now seen corresponding path program 1 times [2019-09-08 11:46:02,460 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:02,460 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:02,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:02,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:02,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:02,524 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:02,524 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:46:02,524 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:46:02,524 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:46:02,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:46:02,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:02,525 INFO L87 Difference]: Start difference. First operand 4191 states and 6083 transitions. Second operand 3 states. [2019-09-08 11:46:05,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:05,997 INFO L93 Difference]: Finished difference Result 12023 states and 17409 transitions. [2019-09-08 11:46:05,997 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:46:05,997 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 101 [2019-09-08 11:46:05,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:06,005 INFO L225 Difference]: With dead ends: 12023 [2019-09-08 11:46:06,005 INFO L226 Difference]: Without dead ends: 7923 [2019-09-08 11:46:06,013 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:06,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7923 states. [2019-09-08 11:46:08,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7923 to 7553. [2019-09-08 11:46:08,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7553 states. [2019-09-08 11:46:08,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7553 states to 7553 states and 10871 transitions. [2019-09-08 11:46:08,811 INFO L78 Accepts]: Start accepts. Automaton has 7553 states and 10871 transitions. Word has length 101 [2019-09-08 11:46:08,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:08,811 INFO L475 AbstractCegarLoop]: Abstraction has 7553 states and 10871 transitions. [2019-09-08 11:46:08,811 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:46:08,811 INFO L276 IsEmpty]: Start isEmpty. Operand 7553 states and 10871 transitions. [2019-09-08 11:46:08,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 11:46:08,813 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:08,813 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:08,813 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:08,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:08,814 INFO L82 PathProgramCache]: Analyzing trace with hash 1870600444, now seen corresponding path program 1 times [2019-09-08 11:46:08,814 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:08,814 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:08,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:08,815 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:08,815 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:08,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:08,862 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:08,863 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:46:08,863 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:46:08,863 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:46:08,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:46:08,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:08,864 INFO L87 Difference]: Start difference. First operand 7553 states and 10871 transitions. Second operand 3 states. [2019-09-08 11:46:14,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:14,399 INFO L93 Difference]: Finished difference Result 21741 states and 31129 transitions. [2019-09-08 11:46:14,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:46:14,400 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 102 [2019-09-08 11:46:14,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:14,419 INFO L225 Difference]: With dead ends: 21741 [2019-09-08 11:46:14,419 INFO L226 Difference]: Without dead ends: 14279 [2019-09-08 11:46:14,431 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:14,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14279 states. [2019-09-08 11:46:20,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14279 to 13633. [2019-09-08 11:46:20,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13633 states. [2019-09-08 11:46:20,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13633 states to 13633 states and 19343 transitions. [2019-09-08 11:46:20,186 INFO L78 Accepts]: Start accepts. Automaton has 13633 states and 19343 transitions. Word has length 102 [2019-09-08 11:46:20,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:20,186 INFO L475 AbstractCegarLoop]: Abstraction has 13633 states and 19343 transitions. [2019-09-08 11:46:20,186 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:46:20,186 INFO L276 IsEmpty]: Start isEmpty. Operand 13633 states and 19343 transitions. [2019-09-08 11:46:20,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-08 11:46:20,189 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:20,189 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:20,189 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:20,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:20,189 INFO L82 PathProgramCache]: Analyzing trace with hash -1255908476, now seen corresponding path program 1 times [2019-09-08 11:46:20,190 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:20,190 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:20,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:20,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:20,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:20,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:20,241 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:20,242 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:46:20,242 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:46:20,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:46:20,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:46:20,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:20,243 INFO L87 Difference]: Start difference. First operand 13633 states and 19343 transitions. Second operand 3 states. [2019-09-08 11:46:27,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:27,787 INFO L93 Difference]: Finished difference Result 29065 states and 41335 transitions. [2019-09-08 11:46:27,787 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:46:27,787 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 103 [2019-09-08 11:46:27,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:27,805 INFO L225 Difference]: With dead ends: 29065 [2019-09-08 11:46:27,805 INFO L226 Difference]: Without dead ends: 19415 [2019-09-08 11:46:27,816 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:27,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19415 states. [2019-09-08 11:46:34,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19415 to 18437. [2019-09-08 11:46:34,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18437 states. [2019-09-08 11:46:34,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18437 states to 18437 states and 25955 transitions. [2019-09-08 11:46:34,908 INFO L78 Accepts]: Start accepts. Automaton has 18437 states and 25955 transitions. Word has length 103 [2019-09-08 11:46:34,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:34,908 INFO L475 AbstractCegarLoop]: Abstraction has 18437 states and 25955 transitions. [2019-09-08 11:46:34,908 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:46:34,908 INFO L276 IsEmpty]: Start isEmpty. Operand 18437 states and 25955 transitions. [2019-09-08 11:46:34,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-08 11:46:34,909 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:34,910 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:34,910 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:34,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:34,910 INFO L82 PathProgramCache]: Analyzing trace with hash 1449436591, now seen corresponding path program 1 times [2019-09-08 11:46:34,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:34,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:34,911 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:34,911 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:34,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:34,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:34,976 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:46:34,976 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:46:34,977 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:46:34,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:46:34,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:46:34,977 INFO L87 Difference]: Start difference. First operand 18437 states and 25955 transitions. Second operand 5 states. [2019-09-08 11:46:50,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:50,882 INFO L93 Difference]: Finished difference Result 57417 states and 79955 transitions. [2019-09-08 11:46:50,883 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 11:46:50,883 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2019-09-08 11:46:50,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:50,919 INFO L225 Difference]: With dead ends: 57417 [2019-09-08 11:46:50,919 INFO L226 Difference]: Without dead ends: 39107 [2019-09-08 11:46:50,935 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:46:50,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39107 states. [2019-09-08 11:46:58,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39107 to 19677. [2019-09-08 11:46:58,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19677 states. [2019-09-08 11:46:58,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19677 states to 19677 states and 27195 transitions. [2019-09-08 11:46:58,765 INFO L78 Accepts]: Start accepts. Automaton has 19677 states and 27195 transitions. Word has length 105 [2019-09-08 11:46:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:58,766 INFO L475 AbstractCegarLoop]: Abstraction has 19677 states and 27195 transitions. [2019-09-08 11:46:58,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:46:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 19677 states and 27195 transitions. [2019-09-08 11:46:58,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2019-09-08 11:46:58,772 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:58,772 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:46:58,772 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:58,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:58,773 INFO L82 PathProgramCache]: Analyzing trace with hash -1023699448, now seen corresponding path program 1 times [2019-09-08 11:46:58,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:58,773 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:58,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:58,774 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:58,774 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:58,829 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 11:46:58,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:46:58,829 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:46:58,829 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:46:58,830 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:46:58,830 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:46:58,830 INFO L87 Difference]: Start difference. First operand 19677 states and 27195 transitions. Second operand 3 states. [2019-09-08 11:47:14,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:47:14,007 INFO L93 Difference]: Finished difference Result 56545 states and 77597 transitions. [2019-09-08 11:47:14,007 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:47:14,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 128 [2019-09-08 11:47:14,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:47:14,046 INFO L225 Difference]: With dead ends: 56545 [2019-09-08 11:47:14,047 INFO L226 Difference]: Without dead ends: 36995 [2019-09-08 11:47:14,064 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:47:14,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36995 states. [2019-09-08 11:47:26,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36995 to 33769. [2019-09-08 11:47:26,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33769 states. [2019-09-08 11:47:26,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33769 states to 33769 states and 46071 transitions. [2019-09-08 11:47:26,996 INFO L78 Accepts]: Start accepts. Automaton has 33769 states and 46071 transitions. Word has length 128 [2019-09-08 11:47:26,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:47:26,996 INFO L475 AbstractCegarLoop]: Abstraction has 33769 states and 46071 transitions. [2019-09-08 11:47:26,996 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:47:26,996 INFO L276 IsEmpty]: Start isEmpty. Operand 33769 states and 46071 transitions. [2019-09-08 11:47:27,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2019-09-08 11:47:27,003 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:47:27,003 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:47:27,004 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:47:27,004 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:47:27,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1639758373, now seen corresponding path program 1 times [2019-09-08 11:47:27,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:47:27,004 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:47:27,005 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:27,005 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:47:27,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:27,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:47:27,269 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 19 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:47:27,269 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:47:27,269 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 11:47:27,287 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:47:27,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:47:27,428 INFO L256 TraceCheckSpWp]: Trace formula consists of 830 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 11:47:27,442 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:47:27,931 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:47:28,366 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 17 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Stream closed [2019-09-08 11:47:28,381 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:47:28,381 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11] total 20 [2019-09-08 11:47:28,382 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 11:47:28,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 11:47:28,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=332, Unknown=0, NotChecked=0, Total=380 [2019-09-08 11:47:28,383 INFO L87 Difference]: Start difference. First operand 33769 states and 46071 transitions. Second operand 20 states. [2019-09-08 11:47:31,311 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:47:31,666 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 44 [2019-09-08 11:47:32,431 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-08 11:47:32,845 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:47:33,486 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-08 11:47:34,381 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:47:34,590 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 11:47:34,871 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:47:35,411 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-08 11:47:35,586 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 11:47:35,830 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-08 11:47:36,355 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:47:36,563 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:47:37,217 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:47:37,453 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:47:37,713 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-08 11:47:38,460 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:47:38,659 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2019-09-08 11:47:41,069 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:47:41,263 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:47:41,699 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-09-08 11:47:41,952 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:47:42,391 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:47:44,977 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-08 11:47:45,371 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:47:47,647 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:47:48,270 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:47:50,520 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:47:50,789 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-08 11:47:50,978 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:47:51,190 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-08 11:47:52,244 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:47:52,600 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:47:52,851 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:47:53,235 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-08 11:47:53,551 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:47:53,849 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:47:54,250 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:47:54,672 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:47:55,142 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2019-09-08 11:47:55,525 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:47:56,129 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:47:56,460 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-08 11:47:58,840 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:47:59,940 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:00,431 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:48:00,986 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:48:01,172 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-08 11:48:15,971 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:16,267 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:16,992 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 11:48:22,792 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:48:23,010 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:48:26,289 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:48:26,610 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:48:27,042 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:48:27,398 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:48:27,828 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:48:28,245 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-08 11:48:29,542 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:48:29,874 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-08 11:48:33,088 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:48:33,330 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:35,104 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:48:36,120 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:37,451 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-08 11:48:37,690 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 50 [2019-09-08 11:48:37,944 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:48:38,153 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-09-08 11:48:38,406 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-08 11:48:38,573 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:48:39,014 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:48:39,316 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:48:39,554 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 49 [2019-09-08 11:48:40,058 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 50 [2019-09-08 11:48:42,851 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:48:43,312 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-08 11:48:43,792 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:48:44,142 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 66 [2019-09-08 11:48:44,720 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-08 11:48:45,164 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:48:45,620 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-08 11:48:45,988 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:48:46,388 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:48:46,838 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:48:47,328 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:48:47,730 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:48:47,990 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:48:48,274 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:48:48,567 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:48:48,826 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:48:49,198 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:48:49,690 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:48:50,069 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:48:51,726 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:48:52,102 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:52,439 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:48:52,667 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:48:52,949 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-08 11:48:53,137 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-08 11:48:53,337 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-08 11:48:53,517 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-08 11:48:53,801 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:48:54,003 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-08 11:48:54,172 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-08 11:48:54,446 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-09-08 11:48:54,799 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-08 11:48:55,036 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-08 11:48:55,249 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2019-09-08 11:48:55,645 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:48:55,920 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 11:48:56,320 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-08 11:48:56,728 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:48:57,221 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:49:01,392 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:49:01,774 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:49:02,313 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-08 11:49:02,582 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2019-09-08 11:49:02,821 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 11:49:03,125 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-08 11:49:03,287 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-08 11:49:03,691 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:49:04,009 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 11:49:04,352 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 11:49:04,706 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:49:05,158 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:49:05,608 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 66 [2019-09-08 11:49:06,230 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:49:06,998 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:49:07,461 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:49:07,856 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:49:08,166 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:49:08,357 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:49:08,601 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:49:08,797 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:49:09,084 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-08 11:49:09,273 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:49:09,460 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 52 [2019-09-08 11:49:09,854 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-08 11:49:10,447 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-08 11:49:10,745 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-08 11:49:10,931 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-08 11:49:11,525 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 11:49:11,742 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 11:49:11,926 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 11:49:13,538 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:49:13,863 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-09-08 11:49:14,192 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:49:14,402 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 56 [2019-09-08 11:49:14,829 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 11:49:15,284 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 11:49:15,485 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-08 11:49:15,867 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2019-09-08 11:49:16,797 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 63 [2019-09-08 11:49:17,082 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-08 11:49:17,561 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-08 11:49:17,863 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 11:49:18,242 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2019-09-08 11:49:18,433 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-08 11:49:22,641 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:49:24,183 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 11:49:24,432 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2019-09-08 11:49:24,804 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-08 11:49:25,053 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 51 [2019-09-08 11:49:26,582 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-08 11:49:26,938 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:49:27,194 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-08 11:49:27,384 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 55 [2019-09-08 11:49:27,585 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:49:28,367 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-08 11:49:28,609 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-08 11:49:28,888 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-08 11:49:29,903 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 11:49:30,697 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 58 [2019-09-08 11:49:31,267 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 11:49:31,577 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-08 11:49:31,925 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-08 11:49:32,161 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:49:33,050 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 11:49:33,284 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 11:49:33,617 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 64 [2019-09-08 11:49:33,958 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:49:34,264 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:49:34,553 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:49:35,245 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 11:49:35,545 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-08 11:49:36,596 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 70 [2019-09-08 11:49:36,972 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:49:38,298 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2019-09-08 11:49:39,415 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:49:39,796 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-08 11:49:40,180 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:49:41,798 WARN L188 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:49:42,387 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-08 11:49:42,668 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 55 [2019-09-08 11:49:45,184 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 11:49:46,015 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 65 [2019-09-08 11:49:48,500 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-08 11:49:48,897 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 64 [2019-09-08 11:49:49,298 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:49:49,752 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:49:50,018 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:49:50,629 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-08 11:49:50,868 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-08 11:49:51,477 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 11:49:52,110 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 11:49:52,630 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2019-09-08 11:49:53,200 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 11:49:53,419 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 59 [2019-09-08 11:49:54,134 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:49:54,414 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:49:55,485 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 11:49:57,329 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 63 [2019-09-08 11:51:39,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:51:39,467 INFO L93 Difference]: Finished difference Result 269718 states and 361455 transitions. [2019-09-08 11:51:39,467 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 262 states. [2019-09-08 11:51:39,468 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 129 [2019-09-08 11:51:39,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:51:40,080 INFO L225 Difference]: With dead ends: 269718 [2019-09-08 11:51:40,080 INFO L226 Difference]: Without dead ends: 236076 [2019-09-08 11:51:40,211 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 400 GetRequests, 121 SyntacticMatches, 1 SemanticMatches, 278 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33544 ImplicationChecksByTransitivity, 78.3s TimeCoverageRelationStatistics Valid=9245, Invalid=68871, Unknown=4, NotChecked=0, Total=78120 [2019-09-08 11:51:40,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 236076 states. [2019-09-08 11:52:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 236076 to 87361. [2019-09-08 11:52:27,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 87361 states. [2019-09-08 11:52:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87361 states to 87361 states and 117861 transitions. [2019-09-08 11:52:27,278 INFO L78 Accepts]: Start accepts. Automaton has 87361 states and 117861 transitions. Word has length 129 [2019-09-08 11:52:27,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:52:27,279 INFO L475 AbstractCegarLoop]: Abstraction has 87361 states and 117861 transitions. [2019-09-08 11:52:27,279 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 11:52:27,279 INFO L276 IsEmpty]: Start isEmpty. Operand 87361 states and 117861 transitions. [2019-09-08 11:52:27,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2019-09-08 11:52:27,296 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:52:27,296 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:52:27,296 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:52:27,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:52:27,297 INFO L82 PathProgramCache]: Analyzing trace with hash 992877774, now seen corresponding path program 1 times [2019-09-08 11:52:27,297 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:52:27,297 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:52:27,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:52:27,300 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:52:27,300 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:52:27,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:52:27,688 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 11 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:52:27,689 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:52:27,689 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) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:52:27,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:52:27,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:52:27,887 INFO L256 TraceCheckSpWp]: Trace formula consists of 835 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 11:52:27,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:52:28,287 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:52:28,416 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:52:28,841 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:52:28,861 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:52:28,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 21 [2019-09-08 11:52:28,863 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 11:52:28,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 11:52:28,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=368, Unknown=0, NotChecked=0, Total=420 [2019-09-08 11:52:28,864 INFO L87 Difference]: Start difference. First operand 87361 states and 117861 transitions. Second operand 21 states. [2019-09-08 11:52:29,220 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-08 11:52:30,206 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-08 11:52:30,906 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:52:31,534 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 11:52:31,902 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:52:32,345 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:52:32,880 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:52:33,152 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 11:52:34,239 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:52:34,629 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-08 11:52:34,999 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:52:35,340 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 11:52:36,016 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:52:36,444 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:52:36,898 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:52:37,229 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:52:38,256 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:52:38,744 WARN L188 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:52:39,392 WARN L188 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 11:52:39,865 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:52:41,225 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 85 [2019-09-08 11:52:42,252 WARN L188 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 11:52:42,603 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:52:43,097 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:52:43,645 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 11:52:44,136 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:52:44,564 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 11:52:45,348 WARN L188 SmtUtils]: Spent 531.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 11:52:45,867 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:52:46,560 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:52:46,942 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:52:47,438 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:52:47,869 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2019-09-08 11:52:48,271 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:52:48,682 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:52:49,522 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:52:49,865 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-08 11:52:50,173 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:52:50,681 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2019-09-08 11:52:51,305 WARN L188 SmtUtils]: Spent 481.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:52:51,673 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:52:52,131 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-08 11:52:52,560 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:52:53,133 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:52:53,691 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:52:54,228 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 11:52:54,746 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:52:55,091 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:52:55,391 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:52:56,039 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:52:56,558 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-08 11:52:57,109 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:52:59,727 WARN L188 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:53:01,757 WARN L188 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:53:02,161 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:53:02,960 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-08 11:53:03,874 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:53:04,774 WARN L188 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:53:05,336 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:53:06,306 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:53:07,141 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:53:07,610 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:53:08,112 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-08 11:53:08,668 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:53:09,236 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:53:09,703 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 11:53:10,868 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-08 11:53:11,156 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:53:12,010 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:53:12,392 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:53:12,842 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:53:13,316 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2019-09-08 11:53:14,005 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:53:14,698 WARN L188 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:53:15,518 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:53:15,864 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:53:20,734 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-08 11:53:21,371 WARN L188 SmtUtils]: Spent 454.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:53:22,254 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:53:22,640 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-08 11:53:23,032 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:53:23,664 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:53:24,124 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:53:24,624 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:53:25,742 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:53:26,162 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:53:26,576 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-08 11:53:28,840 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 84 [2019-09-08 11:53:29,364 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:53:31,348 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 11:53:31,678 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:53:32,076 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:53:32,735 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:53:33,235 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 94 [2019-09-08 11:53:34,401 WARN L188 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:53:34,936 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:53:35,348 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 11:53:38,360 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:54:20,086 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:54:21,925 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-08 11:54:22,348 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-08 11:54:22,720 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-08 11:54:23,226 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-08 11:54:24,358 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:54:33,295 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:54:35,288 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:54:35,735 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:54:36,202 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 89 [2019-09-08 11:54:36,743 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:54:37,266 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:54:37,911 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-08 11:54:38,563 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:54:39,856 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:54:54,106 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:54:54,654 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:54:55,548 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:07,800 WARN L188 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 11:55:08,934 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:55:09,526 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:09,914 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:10,516 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:55:11,161 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-08 11:55:12,036 WARN L188 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:19,900 WARN L188 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:20,913 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:21,395 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:55:21,959 WARN L188 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 97 [2019-09-08 11:55:22,655 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:23,192 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:23,746 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:24,124 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:24,669 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:25,164 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:55:25,734 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:26,228 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:55:26,726 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:27,306 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:55:27,891 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:55:28,647 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:32,528 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:55:35,825 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:36,310 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-08 11:55:36,867 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-08 11:55:37,576 WARN L188 SmtUtils]: Spent 517.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:38,092 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:38,448 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:38,819 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:55:39,334 WARN L188 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:55:40,312 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 90 [2019-09-08 11:55:40,844 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 11:55:47,039 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 11:55:47,400 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 11:55:47,864 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 11:55:52,439 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 11:55:52,894 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 11:55:53,312 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:55:53,761 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 92 [2019-09-08 11:55:54,277 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 98 [2019-09-08 11:55:54,929 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 11:55:55,574 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 11:55:56,139 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:55:56,498 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 11:55:56,881 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 11:56:06,263 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 87 [2019-09-08 11:56:11,078 WARN L188 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 11:56:11,602 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 11:56:12,249 WARN L188 SmtUtils]: Spent 533.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 89 [2019-09-08 11:56:23,832 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-08 11:56:24,196 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:56:27,797 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-08 11:56:28,247 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 11:56:28,715 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 93 [2019-09-08 11:56:29,092 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-08 11:56:29,947 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 99 [2019-09-08 11:56:30,471 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:56:36,902 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2019-09-08 11:56:37,265 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:56:40,707 WARN L188 SmtUtils]: Spent 489.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 95 [2019-09-08 11:56:41,273 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 96 [2019-09-08 11:56:41,957 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 101 [2019-09-08 11:56:42,361 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 11:56:42,728 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84