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/loops/vogal-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 02:33:22,033 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 02:33:22,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 02:33:22,047 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 02:33:22,057 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 02:33:22,058 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 02:33:22,059 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 02:33:22,060 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 02:33:22,061 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 02:33:22,062 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 02:33:22,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 02:33:22,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 02:33:22,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 02:33:22,068 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 02:33:22,069 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 02:33:22,070 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 02:33:22,071 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 02:33:22,079 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 02:33:22,080 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 02:33:22,081 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 02:33:22,081 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 02:33:22,095 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 02:33:22,095 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 02:33:22,097 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 02:33:22,097 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 02:33:22,097 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 02:33:22,097 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 02:33:22,097 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 02:33:22,098 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 02:33:22,099 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 02:33:22,099 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 02:33:22,099 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 02:33:22,099 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 02:33:22,099 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 02:33:22,100 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 02:33:22,100 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 02:33:22,100 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 02:33:22,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 02:33:22,100 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 02:33:22,101 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 02:33:22,101 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 02:33:22,101 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 02:33:22,101 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 02:33:22,101 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 02:33:22,102 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 02:33:22,130 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 02:33:22,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 02:33:22,149 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 02:33:22,150 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 02:33:22,151 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 02:33:22,152 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/loops/vogal-2.i [2019-09-08 02:33:22,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388e7a034/9eac005e062a49ee943998b2a130c62a/FLAG552bc6d33 [2019-09-08 02:33:22,653 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 02:33:22,654 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loops/vogal-2.i [2019-09-08 02:33:22,664 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388e7a034/9eac005e062a49ee943998b2a130c62a/FLAG552bc6d33 [2019-09-08 02:33:23,065 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/388e7a034/9eac005e062a49ee943998b2a130c62a [2019-09-08 02:33:23,076 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 02:33:23,078 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 02:33:23,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 02:33:23,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 02:33:23,083 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 02:33:23,084 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,087 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@335c662c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23, skipping insertion in model container [2019-09-08 02:33:23,087 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,095 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 02:33:23,114 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 02:33:23,301 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 02:33:23,308 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 02:33:23,337 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 02:33:23,438 INFO L192 MainTranslator]: Completed translation [2019-09-08 02:33:23,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23 WrapperNode [2019-09-08 02:33:23,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 02:33:23,439 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 02:33:23,440 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 02:33:23,440 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 02:33:23,454 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,454 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,464 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,464 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,485 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... [2019-09-08 02:33:23,491 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 02:33:23,491 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 02:33:23,491 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 02:33:23,491 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 02:33:23,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 02:33:23,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 02:33:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 02:33:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2019-09-08 02:33:23,555 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 02:33:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 02:33:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2019-09-08 02:33:23,555 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 02:33:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 02:33:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-08 02:33:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-08 02:33:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-08 02:33:23,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-08 02:33:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-08 02:33:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 02:33:23,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 02:33:23,887 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 02:33:23,887 INFO L283 CfgBuilder]: Removed 6 assume(true) statements. [2019-09-08 02:33:23,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:33:23 BoogieIcfgContainer [2019-09-08 02:33:23,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 02:33:23,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 02:33:23,890 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 02:33:23,893 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 02:33:23,893 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 02:33:23" (1/3) ... [2019-09-08 02:33:23,894 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c73f3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:33:23, skipping insertion in model container [2019-09-08 02:33:23,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 02:33:23" (2/3) ... [2019-09-08 02:33:23,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c73f3ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 02:33:23, skipping insertion in model container [2019-09-08 02:33:23,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 02:33:23" (3/3) ... [2019-09-08 02:33:23,897 INFO L109 eAbstractionObserver]: Analyzing ICFG vogal-2.i [2019-09-08 02:33:23,906 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 02:33:23,914 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 02:33:23,933 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 02:33:23,969 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 02:33:23,969 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 02:33:23,970 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 02:33:23,970 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 02:33:23,970 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 02:33:23,970 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 02:33:23,970 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 02:33:23,971 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 02:33:23,971 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 02:33:23,989 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-09-08 02:33:23,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-09-08 02:33:23,994 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:23,995 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:23,997 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:24,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:24,003 INFO L82 PathProgramCache]: Analyzing trace with hash 907546272, now seen corresponding path program 1 times [2019-09-08 02:33:24,004 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:24,005 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:24,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:24,058 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:24,160 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 02:33:24,163 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 02:33:24,164 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-08 02:33:24,168 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-08 02:33:24,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-08 02:33:24,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 02:33:24,186 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-09-08 02:33:24,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:24,208 INFO L93 Difference]: Finished difference Result 64 states and 91 transitions. [2019-09-08 02:33:24,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-08 02:33:24,210 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2019-09-08 02:33:24,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:24,217 INFO L225 Difference]: With dead ends: 64 [2019-09-08 02:33:24,217 INFO L226 Difference]: Without dead ends: 29 [2019-09-08 02:33:24,221 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-08 02:33:24,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-09-08 02:33:24,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-09-08 02:33:24,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-09-08 02:33:24,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 36 transitions. [2019-09-08 02:33:24,264 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 36 transitions. Word has length 17 [2019-09-08 02:33:24,265 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:24,265 INFO L475 AbstractCegarLoop]: Abstraction has 29 states and 36 transitions. [2019-09-08 02:33:24,265 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-08 02:33:24,265 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 36 transitions. [2019-09-08 02:33:24,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-09-08 02:33:24,267 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:24,267 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:24,267 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:24,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:24,268 INFO L82 PathProgramCache]: Analyzing trace with hash 1455815888, now seen corresponding path program 1 times [2019-09-08 02:33:24,268 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:24,268 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:24,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:24,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:24,377 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 02:33:24,378 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 02:33:24,378 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 02:33:24,379 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 02:33:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 02:33:24,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 02:33:24,381 INFO L87 Difference]: Start difference. First operand 29 states and 36 transitions. Second operand 3 states. [2019-09-08 02:33:24,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:24,491 INFO L93 Difference]: Finished difference Result 65 states and 85 transitions. [2019-09-08 02:33:24,492 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 02:33:24,492 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-09-08 02:33:24,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:24,495 INFO L225 Difference]: With dead ends: 65 [2019-09-08 02:33:24,496 INFO L226 Difference]: Without dead ends: 44 [2019-09-08 02:33:24,497 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 02:33:24,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-09-08 02:33:24,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 30. [2019-09-08 02:33:24,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-09-08 02:33:24,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-09-08 02:33:24,506 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 19 [2019-09-08 02:33:24,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:24,506 INFO L475 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-09-08 02:33:24,506 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 02:33:24,506 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-09-08 02:33:24,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-09-08 02:33:24,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:24,508 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] [2019-09-08 02:33:24,508 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:24,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:24,508 INFO L82 PathProgramCache]: Analyzing trace with hash -941161554, now seen corresponding path program 1 times [2019-09-08 02:33:24,509 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:24,509 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:24,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:24,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:24,609 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 02:33:24,610 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:24,610 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 02:33:24,629 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:24,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:24,664 INFO L256 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 02:33:24,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:24,742 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-08 02:33:24,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 02:33:24,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [4] total 8 [2019-09-08 02:33:24,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 02:33:24,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 02:33:24,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-08 02:33:24,749 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2019-09-08 02:33:25,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:25,042 INFO L93 Difference]: Finished difference Result 137 states and 188 transitions. [2019-09-08 02:33:25,042 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 02:33:25,042 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 21 [2019-09-08 02:33:25,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:25,044 INFO L225 Difference]: With dead ends: 137 [2019-09-08 02:33:25,045 INFO L226 Difference]: Without dead ends: 111 [2019-09-08 02:33:25,046 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2019-09-08 02:33:25,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-09-08 02:33:25,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 44. [2019-09-08 02:33:25,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-09-08 02:33:25,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 56 transitions. [2019-09-08 02:33:25,057 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 56 transitions. Word has length 21 [2019-09-08 02:33:25,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:25,058 INFO L475 AbstractCegarLoop]: Abstraction has 44 states and 56 transitions. [2019-09-08 02:33:25,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 02:33:25,058 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 56 transitions. [2019-09-08 02:33:25,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-09-08 02:33:25,059 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:25,060 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 02:33:25,060 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:25,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:25,061 INFO L82 PathProgramCache]: Analyzing trace with hash -2022961947, now seen corresponding path program 1 times [2019-09-08 02:33:25,061 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:25,061 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:25,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:25,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:25,062 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:25,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:25,222 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 02:33:25,222 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:25,223 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 02:33:25,248 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:25,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:25,287 INFO L256 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 7 conjunts are in the unsatisfiable core [2019-09-08 02:33:25,289 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:25,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 02:33:25,319 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 02:33:25,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2019-09-08 02:33:25,320 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 02:33:25,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 02:33:25,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-08 02:33:25,322 INFO L87 Difference]: Start difference. First operand 44 states and 56 transitions. Second operand 7 states. [2019-09-08 02:33:25,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:25,625 INFO L93 Difference]: Finished difference Result 207 states and 284 transitions. [2019-09-08 02:33:25,627 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 02:33:25,627 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 29 [2019-09-08 02:33:25,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:25,634 INFO L225 Difference]: With dead ends: 207 [2019-09-08 02:33:25,635 INFO L226 Difference]: Without dead ends: 174 [2019-09-08 02:33:25,636 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-09-08 02:33:25,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2019-09-08 02:33:25,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 50. [2019-09-08 02:33:25,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-09-08 02:33:25,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 63 transitions. [2019-09-08 02:33:25,666 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 63 transitions. Word has length 29 [2019-09-08 02:33:25,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:25,667 INFO L475 AbstractCegarLoop]: Abstraction has 50 states and 63 transitions. [2019-09-08 02:33:25,667 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 02:33:25,670 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 63 transitions. [2019-09-08 02:33:25,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-09-08 02:33:25,671 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:25,672 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 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] [2019-09-08 02:33:25,672 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:25,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:25,672 INFO L82 PathProgramCache]: Analyzing trace with hash -38007360, now seen corresponding path program 1 times [2019-09-08 02:33:25,673 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:25,673 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:25,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:25,676 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:25,676 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:25,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:25,831 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-08 02:33:25,832 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:25,832 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:25,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:25,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:25,897 INFO L256 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 10 conjunts are in the unsatisfiable core [2019-09-08 02:33:25,899 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:25,936 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 8 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 02:33:25,940 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:25,940 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 8 [2019-09-08 02:33:25,941 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 02:33:25,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 02:33:25,942 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-09-08 02:33:25,942 INFO L87 Difference]: Start difference. First operand 50 states and 63 transitions. Second operand 8 states. [2019-09-08 02:33:26,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:26,400 INFO L93 Difference]: Finished difference Result 306 states and 453 transitions. [2019-09-08 02:33:26,400 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 02:33:26,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-09-08 02:33:26,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:26,404 INFO L225 Difference]: With dead ends: 306 [2019-09-08 02:33:26,404 INFO L226 Difference]: Without dead ends: 269 [2019-09-08 02:33:26,407 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 30 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-09-08 02:33:26,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269 states. [2019-09-08 02:33:26,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269 to 68. [2019-09-08 02:33:26,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2019-09-08 02:33:26,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 85 transitions. [2019-09-08 02:33:26,433 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 85 transitions. Word has length 32 [2019-09-08 02:33:26,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:26,434 INFO L475 AbstractCegarLoop]: Abstraction has 68 states and 85 transitions. [2019-09-08 02:33:26,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 02:33:26,435 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 85 transitions. [2019-09-08 02:33:26,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-09-08 02:33:26,438 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:26,438 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 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] [2019-09-08 02:33:26,439 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:26,439 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:26,439 INFO L82 PathProgramCache]: Analyzing trace with hash -165054150, now seen corresponding path program 2 times [2019-09-08 02:33:26,439 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:26,440 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:26,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:26,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:26,442 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:26,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:26,656 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 02:33:26,657 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:26,657 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:26,679 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 02:33:26,721 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 02:33:26,721 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:26,723 INFO L256 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 14 conjunts are in the unsatisfiable core [2019-09-08 02:33:26,726 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:26,777 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 2 proven. 19 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 02:33:26,781 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:26,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 10 [2019-09-08 02:33:26,782 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 02:33:26,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 02:33:26,784 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-09-08 02:33:26,784 INFO L87 Difference]: Start difference. First operand 68 states and 85 transitions. Second operand 10 states. [2019-09-08 02:33:27,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:27,546 INFO L93 Difference]: Finished difference Result 445 states and 624 transitions. [2019-09-08 02:33:27,546 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-09-08 02:33:27,547 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 37 [2019-09-08 02:33:27,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:27,554 INFO L225 Difference]: With dead ends: 445 [2019-09-08 02:33:27,555 INFO L226 Difference]: Without dead ends: 392 [2019-09-08 02:33:27,559 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 34 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=495, Unknown=0, NotChecked=0, Total=600 [2019-09-08 02:33:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 392 states. [2019-09-08 02:33:27,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 392 to 82. [2019-09-08 02:33:27,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-08 02:33:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 103 transitions. [2019-09-08 02:33:27,583 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 103 transitions. Word has length 37 [2019-09-08 02:33:27,584 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:27,584 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 103 transitions. [2019-09-08 02:33:27,584 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 02:33:27,584 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 103 transitions. [2019-09-08 02:33:27,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-08 02:33:27,588 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:27,590 INFO L399 BasicCegarLoop]: trace histogram [5, 5, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:27,590 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:27,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:27,590 INFO L82 PathProgramCache]: Analyzing trace with hash -978671484, now seen corresponding path program 3 times [2019-09-08 02:33:27,591 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:27,591 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:27,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:27,592 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:27,592 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:27,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:27,761 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 25 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-08 02:33:27,761 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:27,762 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:27,782 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 02:33:27,811 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 02:33:27,811 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:27,813 INFO L256 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 02:33:27,816 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:27,988 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2019-09-08 02:33:27,989 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:33:28,008 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:33:28,009 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:33:28,009 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:15, output treesize:3 [2019-09-08 02:33:28,034 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2019-09-08 02:33:28,038 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:28,038 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2019-09-08 02:33:28,039 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 02:33:28,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 02:33:28,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2019-09-08 02:33:28,040 INFO L87 Difference]: Start difference. First operand 82 states and 103 transitions. Second operand 15 states. [2019-09-08 02:33:28,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:28,704 INFO L93 Difference]: Finished difference Result 467 states and 621 transitions. [2019-09-08 02:33:28,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 02:33:28,705 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 42 [2019-09-08 02:33:28,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:28,708 INFO L225 Difference]: With dead ends: 467 [2019-09-08 02:33:28,708 INFO L226 Difference]: Without dead ends: 397 [2019-09-08 02:33:28,712 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=107, Invalid=445, Unknown=0, NotChecked=0, Total=552 [2019-09-08 02:33:28,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-09-08 02:33:28,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 82. [2019-09-08 02:33:28,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-09-08 02:33:28,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 102 transitions. [2019-09-08 02:33:28,738 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 102 transitions. Word has length 42 [2019-09-08 02:33:28,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:28,740 INFO L475 AbstractCegarLoop]: Abstraction has 82 states and 102 transitions. [2019-09-08 02:33:28,740 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 02:33:28,740 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 102 transitions. [2019-09-08 02:33:28,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 02:33:28,744 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:28,744 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 3, 2, 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 02:33:28,744 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:28,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:28,745 INFO L82 PathProgramCache]: Analyzing trace with hash -124017128, now seen corresponding path program 1 times [2019-09-08 02:33:28,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:28,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:28,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:28,749 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:28,749 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:28,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 02:33:28,894 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:28,894 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:28,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:28,945 INFO L256 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 02:33:28,949 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:29,080 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 8 [2019-09-08 02:33:29,081 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:33:29,082 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:33:29,083 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:33:29,083 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:16, output treesize:4 [2019-09-08 02:33:29,102 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2019-09-08 02:33:29,106 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:29,106 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 16 [2019-09-08 02:33:29,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 02:33:29,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 02:33:29,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=194, Unknown=0, NotChecked=0, Total=240 [2019-09-08 02:33:29,107 INFO L87 Difference]: Start difference. First operand 82 states and 102 transitions. Second operand 16 states. [2019-09-08 02:33:29,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:29,891 INFO L93 Difference]: Finished difference Result 514 states and 685 transitions. [2019-09-08 02:33:29,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 02:33:29,892 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 45 [2019-09-08 02:33:29,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:29,895 INFO L225 Difference]: With dead ends: 514 [2019-09-08 02:33:29,895 INFO L226 Difference]: Without dead ends: 451 [2019-09-08 02:33:29,896 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=150, Invalid=720, Unknown=0, NotChecked=0, Total=870 [2019-09-08 02:33:29,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 451 states. [2019-09-08 02:33:29,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 451 to 86. [2019-09-08 02:33:29,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 86 states. [2019-09-08 02:33:29,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 106 transitions. [2019-09-08 02:33:29,911 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 106 transitions. Word has length 45 [2019-09-08 02:33:29,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:29,911 INFO L475 AbstractCegarLoop]: Abstraction has 86 states and 106 transitions. [2019-09-08 02:33:29,911 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 02:33:29,911 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 106 transitions. [2019-09-08 02:33:29,912 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2019-09-08 02:33:29,912 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:29,912 INFO L399 BasicCegarLoop]: trace histogram [7, 7, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:29,913 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:29,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:29,913 INFO L82 PathProgramCache]: Analyzing trace with hash 767730701, now seen corresponding path program 1 times [2019-09-08 02:33:29,913 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:29,913 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:29,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:29,915 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:29,915 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:29,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:30,090 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 0 proven. 49 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2019-09-08 02:33:30,091 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:30,091 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:30,115 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:30,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:30,160 INFO L256 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 02:33:30,165 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:30,237 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 49 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2019-09-08 02:33:30,241 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:30,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 14 [2019-09-08 02:33:30,241 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 02:33:30,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 02:33:30,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2019-09-08 02:33:30,242 INFO L87 Difference]: Start difference. First operand 86 states and 106 transitions. Second operand 14 states. [2019-09-08 02:33:32,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:32,141 INFO L93 Difference]: Finished difference Result 751 states and 1048 transitions. [2019-09-08 02:33:32,141 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-08 02:33:32,142 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 48 [2019-09-08 02:33:32,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:32,147 INFO L225 Difference]: With dead ends: 751 [2019-09-08 02:33:32,147 INFO L226 Difference]: Without dead ends: 686 [2019-09-08 02:33:32,149 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 44 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 502 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=216, Invalid=1854, Unknown=0, NotChecked=0, Total=2070 [2019-09-08 02:33:32,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 686 states. [2019-09-08 02:33:32,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 686 to 100. [2019-09-08 02:33:32,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2019-09-08 02:33:32,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 124 transitions. [2019-09-08 02:33:32,165 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 124 transitions. Word has length 48 [2019-09-08 02:33:32,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:32,165 INFO L475 AbstractCegarLoop]: Abstraction has 100 states and 124 transitions. [2019-09-08 02:33:32,165 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 02:33:32,166 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 124 transitions. [2019-09-08 02:33:32,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-08 02:33:32,166 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:32,166 INFO L399 BasicCegarLoop]: trace histogram [8, 8, 4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:32,167 INFO L418 AbstractCegarLoop]: === Iteration 10 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:32,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:32,167 INFO L82 PathProgramCache]: Analyzing trace with hash -1548703795, now seen corresponding path program 2 times [2019-09-08 02:33:32,167 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:32,167 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:32,168 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:32,168 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:32,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:32,298 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 02:33:32,298 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:32,298 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:32,314 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 02:33:32,354 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 02:33:32,354 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:32,356 INFO L256 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 02:33:32,358 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:32,437 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (9)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 02:33:32,442 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:32,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 16 [2019-09-08 02:33:32,442 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 02:33:32,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 02:33:32,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-08 02:33:32,443 INFO L87 Difference]: Start difference. First operand 100 states and 124 transitions. Second operand 16 states. [2019-09-08 02:33:35,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:35,499 INFO L93 Difference]: Finished difference Result 958 states and 1330 transitions. [2019-09-08 02:33:35,500 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-09-08 02:33:35,500 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 53 [2019-09-08 02:33:35,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:35,505 INFO L225 Difference]: With dead ends: 958 [2019-09-08 02:33:35,505 INFO L226 Difference]: Without dead ends: 881 [2019-09-08 02:33:35,507 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 48 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 997 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=297, Invalid=3363, Unknown=0, NotChecked=0, Total=3660 [2019-09-08 02:33:35,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 881 states. [2019-09-08 02:33:35,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 881 to 114. [2019-09-08 02:33:35,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 114 states. [2019-09-08 02:33:35,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 142 transitions. [2019-09-08 02:33:35,526 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 142 transitions. Word has length 53 [2019-09-08 02:33:35,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:35,526 INFO L475 AbstractCegarLoop]: Abstraction has 114 states and 142 transitions. [2019-09-08 02:33:35,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 02:33:35,527 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 142 transitions. [2019-09-08 02:33:35,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-08 02:33:35,527 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:35,528 INFO L399 BasicCegarLoop]: trace histogram [9, 9, 5, 5, 5, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:35,528 INFO L418 AbstractCegarLoop]: === Iteration 11 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:35,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:35,528 INFO L82 PathProgramCache]: Analyzing trace with hash 417827089, now seen corresponding path program 3 times [2019-09-08 02:33:35,528 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:35,528 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:35,529 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:35,529 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:35,530 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:35,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:35,701 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 81 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2019-09-08 02:33:35,701 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:35,701 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:35,716 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:35,746 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2019-09-08 02:33:35,747 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:35,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-08 02:33:35,750 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:35,910 INFO L134 CoverageAnalysis]: Checked inductivity of 120 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2019-09-08 02:33:35,913 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:35,913 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2019-09-08 02:33:35,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 02:33:35,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 02:33:35,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=283, Unknown=0, NotChecked=0, Total=342 [2019-09-08 02:33:35,914 INFO L87 Difference]: Start difference. First operand 114 states and 142 transitions. Second operand 19 states. [2019-09-08 02:33:37,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:37,741 INFO L93 Difference]: Finished difference Result 1437 states and 1917 transitions. [2019-09-08 02:33:37,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2019-09-08 02:33:37,747 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 58 [2019-09-08 02:33:37,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:37,753 INFO L225 Difference]: With dead ends: 1437 [2019-09-08 02:33:37,753 INFO L226 Difference]: Without dead ends: 1348 [2019-09-08 02:33:37,754 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=201, Invalid=1131, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 02:33:37,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1348 states. [2019-09-08 02:33:37,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1348 to 154. [2019-09-08 02:33:37,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154 states. [2019-09-08 02:33:37,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154 states to 154 states and 194 transitions. [2019-09-08 02:33:37,784 INFO L78 Accepts]: Start accepts. Automaton has 154 states and 194 transitions. Word has length 58 [2019-09-08 02:33:37,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:37,785 INFO L475 AbstractCegarLoop]: Abstraction has 154 states and 194 transitions. [2019-09-08 02:33:37,785 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 02:33:37,785 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states and 194 transitions. [2019-09-08 02:33:37,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-08 02:33:37,786 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:37,786 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 5, 5, 5, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:37,786 INFO L418 AbstractCegarLoop]: === Iteration 12 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:37,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:37,787 INFO L82 PathProgramCache]: Analyzing trace with hash -583840968, now seen corresponding path program 4 times [2019-09-08 02:33:37,787 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:37,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:37,787 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:37,788 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:37,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:37,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:37,906 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 2 proven. 35 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-09-08 02:33:37,907 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:37,907 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:37,925 INFO L103 rtionOrderModulation]: Keeping assertion order TERMS_WITH_SMALL_CONSTANTS_FIRST Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:37,973 INFO L249 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2019-09-08 02:33:37,974 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:37,975 INFO L256 TraceCheckSpWp]: Trace formula consists of 228 conjuncts, 26 conjunts are in the unsatisfiable core [2019-09-08 02:33:37,978 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:38,092 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 2 proven. 115 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2019-09-08 02:33:38,097 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:38,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 14] total 15 [2019-09-08 02:33:38,098 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 02:33:38,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 02:33:38,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2019-09-08 02:33:38,098 INFO L87 Difference]: Start difference. First operand 154 states and 194 transitions. Second operand 15 states. [2019-09-08 02:33:40,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:40,245 INFO L93 Difference]: Finished difference Result 846 states and 1161 transitions. [2019-09-08 02:33:40,245 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-09-08 02:33:40,245 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 62 [2019-09-08 02:33:40,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:40,249 INFO L225 Difference]: With dead ends: 846 [2019-09-08 02:33:40,249 INFO L226 Difference]: Without dead ends: 759 [2019-09-08 02:33:40,251 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 55 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 639 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=213, Invalid=2337, Unknown=0, NotChecked=0, Total=2550 [2019-09-08 02:33:40,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 759 states. [2019-09-08 02:33:40,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 759 to 172. [2019-09-08 02:33:40,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 172 states. [2019-09-08 02:33:40,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 218 transitions. [2019-09-08 02:33:40,282 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 218 transitions. Word has length 62 [2019-09-08 02:33:40,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:40,282 INFO L475 AbstractCegarLoop]: Abstraction has 172 states and 218 transitions. [2019-09-08 02:33:40,283 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 02:33:40,283 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 218 transitions. [2019-09-08 02:33:40,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 02:33:40,284 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:40,284 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 6, 6, 6, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:40,284 INFO L418 AbstractCegarLoop]: === Iteration 13 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:40,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:40,285 INFO L82 PathProgramCache]: Analyzing trace with hash -308273692, now seen corresponding path program 5 times [2019-09-08 02:33:40,285 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:40,285 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:40,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:40,286 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:40,286 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:40,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:40,470 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 51 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-09-08 02:33:40,471 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:40,471 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:40,498 INFO L103 rtionOrderModulation]: Keeping assertion order INSIDE_LOOP_FIRST1 Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:43,034 INFO L249 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 10 check-sat command(s) [2019-09-08 02:33:43,034 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:43,040 INFO L256 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 15 conjunts are in the unsatisfiable core [2019-09-08 02:33:43,042 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:43,076 INFO L134 CoverageAnalysis]: Checked inductivity of 159 backedges. 2 proven. 51 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-09-08 02:33:43,081 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:43,081 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 10 [2019-09-08 02:33:43,081 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 02:33:43,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 02:33:43,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-09-08 02:33:43,082 INFO L87 Difference]: Start difference. First operand 172 states and 218 transitions. Second operand 10 states. [2019-09-08 02:33:43,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:43,272 INFO L93 Difference]: Finished difference Result 301 states and 395 transitions. [2019-09-08 02:33:43,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 02:33:43,273 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 65 [2019-09-08 02:33:43,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:43,276 INFO L225 Difference]: With dead ends: 301 [2019-09-08 02:33:43,276 INFO L226 Difference]: Without dead ends: 202 [2019-09-08 02:33:43,277 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 64 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2019-09-08 02:33:43,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202 states. [2019-09-08 02:33:43,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202 to 190. [2019-09-08 02:33:43,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2019-09-08 02:33:43,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 242 transitions. [2019-09-08 02:33:43,306 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 242 transitions. Word has length 65 [2019-09-08 02:33:43,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:43,306 INFO L475 AbstractCegarLoop]: Abstraction has 190 states and 242 transitions. [2019-09-08 02:33:43,306 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 02:33:43,306 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 242 transitions. [2019-09-08 02:33:43,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 02:33:43,307 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:43,307 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 7, 7, 7, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 02:33:43,308 INFO L418 AbstractCegarLoop]: === Iteration 14 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:43,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:43,308 INFO L82 PathProgramCache]: Analyzing trace with hash 1433942968, now seen corresponding path program 6 times [2019-09-08 02:33:43,308 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:43,308 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:43,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:43,309 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:43,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:43,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:43,462 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 2 proven. 70 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2019-09-08 02:33:43,463 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:43,463 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 02:33:43,478 INFO L103 rtionOrderModulation]: Keeping assertion order MIX_INSIDE_OUTSIDE Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:43,528 INFO L249 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 3 check-sat command(s) [2019-09-08 02:33:43,528 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:43,529 INFO L256 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 18 conjunts are in the unsatisfiable core [2019-09-08 02:33:43,531 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:43,700 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:33:43,863 INFO L172 IndexEqualityManager]: detected equality via solver [2019-09-08 02:33:43,866 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:33:43,867 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 10 [2019-09-08 02:33:43,867 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:33:43,877 INFO L567 ElimStorePlain]: treesize reduction 5, result has 64.3 percent of original size [2019-09-08 02:33:43,878 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:33:43,879 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 3 variables, input treesize:27, output treesize:3 [2019-09-08 02:33:43,908 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2019-09-08 02:33:43,920 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 02:33:43,920 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [10] total 17 [2019-09-08 02:33:43,921 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 02:33:43,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 02:33:43,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-08 02:33:43,922 INFO L87 Difference]: Start difference. First operand 190 states and 242 transitions. Second operand 17 states. [2019-09-08 02:33:45,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:45,280 INFO L93 Difference]: Finished difference Result 447 states and 595 transitions. [2019-09-08 02:33:45,280 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-09-08 02:33:45,281 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 68 [2019-09-08 02:33:45,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:45,283 INFO L225 Difference]: With dead ends: 447 [2019-09-08 02:33:45,283 INFO L226 Difference]: Without dead ends: 333 [2019-09-08 02:33:45,284 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=192, Invalid=998, Unknown=0, NotChecked=0, Total=1190 [2019-09-08 02:33:45,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 333 states. [2019-09-08 02:33:45,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 333 to 209. [2019-09-08 02:33:45,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209 states. [2019-09-08 02:33:45,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 267 transitions. [2019-09-08 02:33:45,318 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 267 transitions. Word has length 68 [2019-09-08 02:33:45,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:45,318 INFO L475 AbstractCegarLoop]: Abstraction has 209 states and 267 transitions. [2019-09-08 02:33:45,318 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 02:33:45,319 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 267 transitions. [2019-09-08 02:33:45,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-09-08 02:33:45,319 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:45,320 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 8, 8, 8, 8, 8, 8, 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] [2019-09-08 02:33:45,320 INFO L418 AbstractCegarLoop]: === Iteration 15 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:45,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:45,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1283842895, now seen corresponding path program 1 times [2019-09-08 02:33:45,320 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:45,321 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:45,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:45,321 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:33:45,321 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:45,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:45,489 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 2 proven. 92 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-09-08 02:33:45,489 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:45,489 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:45,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:45,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:45,570 INFO L256 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 38 conjunts are in the unsatisfiable core [2019-09-08 02:33:45,571 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:45,703 INFO L134 CoverageAnalysis]: Checked inductivity of 289 backedges. 2 proven. 190 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (14)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 02:33:45,719 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:45,720 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 20] total 21 [2019-09-08 02:33:45,720 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 02:33:45,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 02:33:45,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=372, Unknown=0, NotChecked=0, Total=420 [2019-09-08 02:33:45,721 INFO L87 Difference]: Start difference. First operand 209 states and 267 transitions. Second operand 21 states. [2019-09-08 02:33:51,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:33:51,647 INFO L93 Difference]: Finished difference Result 1446 states and 1953 transitions. [2019-09-08 02:33:51,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 101 states. [2019-09-08 02:33:51,647 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 96 [2019-09-08 02:33:51,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:33:51,653 INFO L225 Difference]: With dead ends: 1446 [2019-09-08 02:33:51,653 INFO L226 Difference]: Without dead ends: 1317 [2019-09-08 02:33:51,657 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 268 GetRequests, 167 SyntacticMatches, 1 SemanticMatches, 100 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3252 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=453, Invalid=9849, Unknown=0, NotChecked=0, Total=10302 [2019-09-08 02:33:51,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1317 states. [2019-09-08 02:33:51,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1317 to 215. [2019-09-08 02:33:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 215 states. [2019-09-08 02:33:51,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 271 transitions. [2019-09-08 02:33:51,700 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 271 transitions. Word has length 96 [2019-09-08 02:33:51,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:33:51,700 INFO L475 AbstractCegarLoop]: Abstraction has 215 states and 271 transitions. [2019-09-08 02:33:51,700 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 02:33:51,701 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 271 transitions. [2019-09-08 02:33:51,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2019-09-08 02:33:51,701 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:33:51,702 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 9, 9, 9, 8, 8, 8, 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] [2019-09-08 02:33:51,702 INFO L418 AbstractCegarLoop]: === Iteration 16 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:33:51,702 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:33:51,702 INFO L82 PathProgramCache]: Analyzing trace with hash -1439630739, now seen corresponding path program 2 times [2019-09-08 02:33:51,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:33:51,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:33:51,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:51,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:33:51,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:33:51,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:33:51,893 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 2 proven. 117 refuted. 0 times theorem prover too weak. 195 trivial. 0 not checked. [2019-09-08 02:33:51,893 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:33:51,894 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:33:51,923 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-09-08 02:33:51,992 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-09-08 02:33:51,992 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:33:51,994 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 42 conjunts are in the unsatisfiable core [2019-09-08 02:33:51,996 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:33:52,263 INFO L134 CoverageAnalysis]: Checked inductivity of 314 backedges. 2 proven. 217 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-09-08 02:33:52,269 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:33:52,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 22] total 23 [2019-09-08 02:33:52,269 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 02:33:52,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 02:33:52,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=453, Unknown=0, NotChecked=0, Total=506 [2019-09-08 02:33:52,270 INFO L87 Difference]: Start difference. First operand 215 states and 271 transitions. Second operand 23 states. [2019-09-08 02:34:00,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:34:00,004 INFO L93 Difference]: Finished difference Result 1574 states and 2102 transitions. [2019-09-08 02:34:00,004 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 122 states. [2019-09-08 02:34:00,004 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 99 [2019-09-08 02:34:00,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:34:00,012 INFO L225 Difference]: With dead ends: 1574 [2019-09-08 02:34:00,012 INFO L226 Difference]: Without dead ends: 1507 [2019-09-08 02:34:00,017 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 300 GetRequests, 178 SyntacticMatches, 1 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4963 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=553, Invalid=14453, Unknown=0, NotChecked=0, Total=15006 [2019-09-08 02:34:00,018 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2019-09-08 02:34:00,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 221. [2019-09-08 02:34:00,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2019-09-08 02:34:00,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 279 transitions. [2019-09-08 02:34:00,065 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 279 transitions. Word has length 99 [2019-09-08 02:34:00,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:34:00,066 INFO L475 AbstractCegarLoop]: Abstraction has 221 states and 279 transitions. [2019-09-08 02:34:00,066 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 02:34:00,066 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 279 transitions. [2019-09-08 02:34:00,067 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 02:34:00,067 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:34:00,067 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 8, 8, 8, 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] [2019-09-08 02:34:00,067 INFO L418 AbstractCegarLoop]: === Iteration 17 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:34:00,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:34:00,068 INFO L82 PathProgramCache]: Analyzing trace with hash -215472497, now seen corresponding path program 3 times [2019-09-08 02:34:00,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:34:00,068 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:34:00,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:34:00,069 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:34:00,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:34:00,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:34:00,643 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 37 [2019-09-08 02:34:00,788 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 41 [2019-09-08 02:34:01,155 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 50 [2019-09-08 02:34:01,313 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 75 proven. 57 refuted. 0 times theorem prover too weak. 210 trivial. 0 not checked. [2019-09-08 02:34:01,313 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:34:01,313 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:34:01,324 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2019-09-08 02:34:01,853 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2019-09-08 02:34:01,853 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-09-08 02:34:01,856 INFO L256 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 72 conjunts are in the unsatisfiable core [2019-09-08 02:34:01,859 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:34:01,868 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2019-09-08 02:34:01,869 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:01,877 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:01,878 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:01,878 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:31, output treesize:27 [2019-09-08 02:34:01,911 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:01,921 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:01,931 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2019-09-08 02:34:01,932 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:01,935 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:01,936 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:01,962 INFO L567 ElimStorePlain]: treesize reduction 10, result has 79.2 percent of original size [2019-09-08 02:34:01,962 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:01,963 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:107, output treesize:27 [2019-09-08 02:34:01,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,009 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,010 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,014 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,015 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2019-09-08 02:34:02,016 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,043 INFO L567 ElimStorePlain]: treesize reduction 10, result has 79.2 percent of original size [2019-09-08 02:34:02,043 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,044 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:107, output treesize:27 [2019-09-08 02:34:02,086 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,096 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,105 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 54 [2019-09-08 02:34:02,106 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,109 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,110 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,136 INFO L567 ElimStorePlain]: treesize reduction 10, result has 79.2 percent of original size [2019-09-08 02:34:02,137 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,137 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:107, output treesize:27 [2019-09-08 02:34:02,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,180 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,195 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2019-09-08 02:34:02,196 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,198 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,199 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,223 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.4 percent of original size [2019-09-08 02:34:02,223 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,223 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:27 [2019-09-08 02:34:02,258 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,264 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,274 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2019-09-08 02:34:02,275 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,277 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,277 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,299 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.4 percent of original size [2019-09-08 02:34:02,300 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,300 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:27 [2019-09-08 02:34:02,334 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,349 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,358 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2019-09-08 02:34:02,359 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,363 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,363 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,386 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.4 percent of original size [2019-09-08 02:34:02,387 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,387 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:27 [2019-09-08 02:34:02,424 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,432 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,438 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 49 [2019-09-08 02:34:02,439 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,441 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:02,441 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,467 INFO L567 ElimStorePlain]: treesize reduction 5, result has 88.4 percent of original size [2019-09-08 02:34:02,467 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,468 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 2 variables, input treesize:97, output treesize:27 [2019-09-08 02:34:02,514 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,515 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-09-08 02:34:02,515 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,525 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:02,525 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,526 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 2 variables, input treesize:37, output treesize:24 [2019-09-08 02:34:02,566 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,576 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,585 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2019-09-08 02:34:02,586 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,592 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,596 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2019-09-08 02:34:02,597 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,638 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:02,641 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,642 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:24 [2019-09-08 02:34:02,643 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:02,648 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,655 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 46 treesize of output 48 [2019-09-08 02:34:02,656 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,662 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,667 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 46 [2019-09-08 02:34:02,667 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,703 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:02,710 INFO L496 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,710 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 3 variables, input treesize:91, output treesize:24 [2019-09-08 02:34:02,715 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:02,718 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 32 [2019-09-08 02:34:02,719 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,733 INFO L567 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:02,733 INFO L496 ElimStorePlain]: Start of recursive call 1: 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:02,734 INFO L221 ElimStorePlain]: Needed 2 recursive calls to eliminate 1 variables, input treesize:37, output treesize:33 [2019-09-08 02:34:03,539 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:03,540 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:03,541 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:03,561 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:03,562 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:03,568 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:03,569 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:03,579 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:03,581 INFO L189 IndexEqualityManager]: detected not equals via solver [2019-09-08 02:34:03,605 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:34:03,606 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 1 case distinctions, treesize of input 88 treesize of output 58 [2019-09-08 02:34:03,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:03,608 INFO L496 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:03,617 WARN L225 Elim1Store]: Array PQE input equivalent to false [2019-09-08 02:34:03,617 INFO L496 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-09-08 02:34:03,669 INFO L567 ElimStorePlain]: treesize reduction 10, result has 76.7 percent of original size [2019-09-08 02:34:03,670 INFO L496 ElimStorePlain]: Start of recursive call 1: 3 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:34:03,670 INFO L221 ElimStorePlain]: Needed 5 recursive calls to eliminate 4 variables, input treesize:363, output treesize:29 [2019-09-08 02:34:03,756 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:34:04,352 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 19 proven. 191 refuted. 0 times theorem prover too weak. 132 trivial. 0 not checked. [2019-09-08 02:34:04,356 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:34:04,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 27] total 38 [2019-09-08 02:34:04,357 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-08 02:34:04,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-08 02:34:04,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=125, Invalid=1281, Unknown=0, NotChecked=0, Total=1406 [2019-09-08 02:34:04,358 INFO L87 Difference]: Start difference. First operand 221 states and 279 transitions. Second operand 38 states. [2019-09-08 02:34:06,236 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 43 [2019-09-08 02:34:06,899 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 02:34:07,546 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 02:34:08,122 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 02:34:08,581 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 02:34:09,518 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-08 02:34:09,777 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 02:34:10,692 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 46 [2019-09-08 02:34:11,381 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 46 [2019-09-08 02:34:11,659 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 58 [2019-09-08 02:34:11,852 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 52 [2019-09-08 02:34:12,090 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 52 [2019-09-08 02:34:12,316 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 49 [2019-09-08 02:34:13,067 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 02:34:13,445 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 55 [2019-09-08 02:34:13,909 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 02:34:14,387 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 57 [2019-09-08 02:34:14,771 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 02:34:15,007 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 54 [2019-09-08 02:34:15,410 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 62 [2019-09-08 02:34:15,813 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 02:34:16,065 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 58 [2019-09-08 02:34:18,718 WARN L188 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-08 02:34:19,181 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 02:34:19,495 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 02:34:20,064 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-08 02:34:20,954 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 02:34:21,822 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 02:34:22,248 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 02:34:23,763 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-08 02:34:24,663 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 02:34:25,031 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 02:34:25,347 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 02:34:26,291 WARN L188 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 02:34:26,797 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 02:34:27,207 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-08 02:34:27,647 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 02:34:28,166 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-08 02:34:31,175 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 43 [2019-09-08 02:34:31,367 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 38 [2019-09-08 02:34:31,611 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 55 [2019-09-08 02:34:31,799 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 48 [2019-09-08 02:34:32,043 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 49 [2019-09-08 02:34:32,239 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 45 [2019-09-08 02:34:32,925 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 02:34:33,411 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 02:34:33,594 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 52 [2019-09-08 02:34:33,991 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 02:34:34,525 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 54 [2019-09-08 02:34:35,109 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 02:34:35,351 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 50 [2019-09-08 02:34:35,894 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 02:34:36,293 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 59 [2019-09-08 02:34:36,711 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 02:34:36,922 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 54 [2019-09-08 02:34:38,121 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 02:34:38,958 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 02:34:39,556 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 02:34:40,111 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 02:34:40,691 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 02:34:42,000 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 02:34:43,065 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 02:34:45,823 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-08 02:34:47,055 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 02:34:47,527 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-08 02:34:48,571 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 02:34:49,632 WARN L188 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 02:34:50,186 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 02:34:51,039 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 02:35:07,369 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-08 02:35:07,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 02:35:07,921 INFO L93 Difference]: Finished difference Result 1667 states and 2193 transitions. [2019-09-08 02:35:07,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 229 states. [2019-09-08 02:35:07,922 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 102 [2019-09-08 02:35:07,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 02:35:07,931 INFO L225 Difference]: With dead ends: 1667 [2019-09-08 02:35:07,931 INFO L226 Difference]: Without dead ends: 1628 [2019-09-08 02:35:07,943 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 88 SyntacticMatches, 3 SemanticMatches, 263 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27364 ImplicationChecksByTransitivity, 50.0s TimeCoverageRelationStatistics Valid=5237, Invalid=64723, Unknown=0, NotChecked=0, Total=69960 [2019-09-08 02:35:07,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1628 states. [2019-09-08 02:35:08,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1628 to 277. [2019-09-08 02:35:08,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 277 states. [2019-09-08 02:35:08,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 277 states to 277 states and 353 transitions. [2019-09-08 02:35:08,022 INFO L78 Accepts]: Start accepts. Automaton has 277 states and 353 transitions. Word has length 102 [2019-09-08 02:35:08,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 02:35:08,022 INFO L475 AbstractCegarLoop]: Abstraction has 277 states and 353 transitions. [2019-09-08 02:35:08,022 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-08 02:35:08,022 INFO L276 IsEmpty]: Start isEmpty. Operand 277 states and 353 transitions. [2019-09-08 02:35:08,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 02:35:08,027 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 02:35:08,027 INFO L399 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 8, 8, 8, 8, 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] [2019-09-08 02:35:08,028 INFO L418 AbstractCegarLoop]: === Iteration 18 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 02:35:08,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 02:35:08,028 INFO L82 PathProgramCache]: Analyzing trace with hash 1369482703, now seen corresponding path program 1 times [2019-09-08 02:35:08,028 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 02:35:08,028 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 02:35:08,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:35:08,029 INFO L101 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2019-09-08 02:35:08,029 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 02:35:08,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:35:08,671 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 231 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2019-09-08 02:35:08,671 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 02:35:08,671 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 02:35:08,681 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 02:35:08,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 02:35:08,748 INFO L256 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 71 conjunts are in the unsatisfiable core [2019-09-08 02:35:08,751 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 02:35:09,537 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:09,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:09,538 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:12,236 WARN L188 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 41 DAG size of output: 38 [2019-09-08 02:35:13,902 WARN L188 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-08 02:35:36,930 WARN L188 SmtUtils]: Spent 22.83 s on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2019-09-08 02:35:37,990 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:37,991 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:37,994 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 02:35:38,001 INFO L392 ElimStorePlain]: Different costs {10=[v_prenex_14, |#memory_int|], 18=[v_prenex_10]} [2019-09-08 02:35:38,053 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:35:38,054 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 74 treesize of output 106 [2019-09-08 02:35:38,055 INFO L496 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-09-08 02:35:38,124 INFO L567 ElimStorePlain]: treesize reduction 136, result has 40.6 percent of original size [2019-09-08 02:35:38,189 INFO L341 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-09-08 02:35:38,189 INFO L375 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 1 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 78 treesize of output 112 [2019-09-08 02:35:38,190 INFO L496 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-09-08 02:35:38,230 INFO L567 ElimStorePlain]: treesize reduction 52, result has 35.8 percent of original size [2019-09-08 02:35:38,230 INFO L464 ElimStorePlain]: Eliminatee v_prenex_10 vanished before elimination [2019-09-08 02:35:38,237 INFO L496 ElimStorePlain]: Start of recursive call 1: 15 dim-0 vars, 3 dim-2 vars, End of recursive call: and 1 xjuncts. [2019-09-08 02:35:38,238 INFO L221 ElimStorePlain]: Needed 3 recursive calls to eliminate 18 variables, input treesize:241, output treesize:3 [2019-09-08 02:35:38,357 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 76 proven. 231 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2019-09-08 02:35:38,361 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 02:35:38,361 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 30] total 50 [2019-09-08 02:35:38,362 INFO L454 AbstractCegarLoop]: Interpolant automaton has 50 states [2019-09-08 02:35:38,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2019-09-08 02:35:38,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=2303, Unknown=0, NotChecked=0, Total=2450 [2019-09-08 02:35:38,363 INFO L87 Difference]: Start difference. First operand 277 states and 353 transitions. Second operand 50 states. [2019-09-08 02:35:45,482 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:47,566 WARN L188 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-08 02:35:49,793 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:50,023 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:50,282 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:50,603 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:52,246 WARN L188 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:55,160 WARN L188 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:35:55,498 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 02:35:56,429 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:35:57,528 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:35:57,825 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:35:58,071 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:36:00,417 WARN L188 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:36:01,842 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:03,501 WARN L188 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:03,841 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 02:36:04,136 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:04,647 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:04,918 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:05,183 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:36:05,646 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:36:06,734 WARN L188 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:36:08,631 WARN L188 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:36:10,960 WARN L188 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:36:11,227 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:36:12,855 WARN L188 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:36:14,081 WARN L188 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:36:14,440 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:14,663 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:15,058 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 02:36:15,388 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:15,778 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:17,147 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:18,559 WARN L188 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:36:19,233 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 02:36:20,725 WARN L188 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:36:21,037 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 02:36:23,768 WARN L188 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:36:24,095 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:36:24,436 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:36:24,986 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:36:34,719 WARN L188 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2019-09-08 02:36:47,175 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:36:49,153 WARN L188 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:36:50,348 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:36:50,758 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:36:58,525 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:36:59,959 WARN L188 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:04,460 WARN L188 SmtUtils]: Spent 3.74 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:37:12,698 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:14,590 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:15,183 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:37:27,299 WARN L188 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:29,835 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:37:31,100 WARN L188 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:32,865 WARN L188 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:37:43,677 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:37:44,472 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 02:37:46,183 WARN L188 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:37:48,698 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:38:02,740 WARN L188 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2019-09-08 02:38:08,938 WARN L188 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:38:13,055 WARN L188 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-09-08 02:38:17,194 WARN L188 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:38:21,361 WARN L188 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:38:27,563 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:38:33,727 WARN L188 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 02:38:39,933 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-09-08 02:38:46,109 WARN L188 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:38:52,321 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:38:56,484 WARN L188 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:39:02,722 WARN L188 SmtUtils]: Spent 6.11 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:39:08,886 WARN L188 SmtUtils]: Spent 6.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:39:15,102 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:39:23,269 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:39:27,436 WARN L188 SmtUtils]: Spent 4.06 s on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 02:39:31,355 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 51 [2019-09-08 02:39:38,070 WARN L188 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:39:39,292 WARN L188 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 02:39:40,749 WARN L188 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:39:41,752 WARN L188 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:39:42,752 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:39:45,089 WARN L188 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:39:45,594 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:39:46,106 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:39:48,248 WARN L188 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:39:48,549 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-08 02:39:48,901 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:39:51,680 WARN L188 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 02:39:52,107 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:39:54,461 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:39:57,973 WARN L188 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:39:58,603 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 02:40:01,203 WARN L188 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 39 DAG size of output: 39 [2019-09-08 02:40:01,627 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-08 02:40:01,901 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:40:02,334 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:40:03,449 WARN L188 SmtUtils]: Spent 571.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 02:40:03,857 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:40:04,264 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:40:04,823 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:40:05,239 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 02:40:11,225 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-09-08 02:40:15,248 WARN L188 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:15,619 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:15,816 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:16,020 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:16,472 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:17,048 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:17,459 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:17,669 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:17,854 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:19,267 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:20,898 WARN L188 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:22,921 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:23,950 WARN L188 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:24,137 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:25,346 WARN L188 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:40:27,725 WARN L188 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:28,281 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:28,492 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:29,275 WARN L188 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:30,825 WARN L188 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:34,589 WARN L188 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:35,079 WARN L188 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:35,321 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:40:35,540 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:37,131 WARN L188 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:40,318 WARN L188 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:41,531 WARN L188 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:43,200 WARN L188 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:40:43,522 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:44,302 WARN L188 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:53,257 WARN L188 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:40:54,570 WARN L188 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:40:55,189 WARN L188 SmtUtils]: Spent 540.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:40:55,407 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:40:56,438 WARN L188 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:40:57,428 WARN L188 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:40:58,329 WARN L188 SmtUtils]: Spent 820.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:40:58,504 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:40:58,678 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:40:58,911 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:41:06,245 WARN L188 SmtUtils]: Spent 7.26 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:06,493 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:06,828 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:07,074 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:09,289 WARN L188 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:09,472 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:09,728 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:11,177 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:41:11,494 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:41:11,693 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:12,046 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:12,247 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:12,701 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:15,960 WARN L188 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:41:17,439 WARN L188 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:41:17,643 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:17,888 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:18,091 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:18,278 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:18,496 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:19,226 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:41:19,565 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:20,121 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:20,439 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:20,738 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:23,318 WARN L188 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:41:26,180 WARN L188 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:26,450 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:41:27,110 WARN L188 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:27,967 WARN L188 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:41:28,269 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:28,448 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:41:29,764 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:30,038 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:30,321 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:30,662 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:30,945 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:31,231 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:31,524 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:31,814 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:32,083 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 02:41:32,340 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:41:32,657 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:32,946 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:33,228 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:33,563 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:33,850 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:34,139 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:34,424 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:34,707 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:35,338 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2019-09-08 02:41:35,679 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 02:41:35,973 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:41:36,294 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:36,655 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:36,944 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:37,223 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:37,516 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 02:41:38,060 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:41:38,400 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:38,686 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:38,976 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:39,268 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:39,564 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:39,927 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:40,456 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:41:40,782 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:41,063 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:41,359 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:41,650 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:41,947 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:42,421 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:41:42,750 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:43,105 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:43,403 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 02:41:43,687 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:44,112 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:41:44,448 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 02:41:44,744 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:45,067 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 61 [2019-09-08 02:41:46,433 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 44 [2019-09-08 02:42:09,630 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 02:42:18,867 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 02:42:47,432 WARN L188 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 71 DAG size of output: 49 [2019-09-08 02:42:53,637 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:43:01,755 WARN L188 SmtUtils]: Spent 8.06 s on a formula simplification. DAG size of input: 46 DAG size of output: 33 [2019-09-08 02:43:09,896 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:43:18,070 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:43:24,280 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:43:32,459 WARN L188 SmtUtils]: Spent 8.08 s on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 02:43:38,674 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 74 DAG size of output: 52 [2019-09-08 02:43:46,844 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:43:53,058 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:44:01,223 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:44:07,429 WARN L188 SmtUtils]: Spent 6.08 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:44:15,605 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:44:21,820 WARN L188 SmtUtils]: Spent 6.09 s on a formula simplification. DAG size of input: 75 DAG size of output: 53 [2019-09-08 02:44:30,126 WARN L188 SmtUtils]: Spent 8.09 s on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 02:44:38,294 WARN L188 SmtUtils]: Spent 8.07 s on a formula simplification. DAG size of input: 50 DAG size of output: 37 [2019-09-08 02:44:52,991 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 02:45:06,723 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 40 [2019-09-08 02:45:08,942 WARN L188 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:45:11,121 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:45:11,956 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:45:12,627 WARN L188 SmtUtils]: Spent 510.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:45:15,158 WARN L188 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 02:45:20,608 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-08 02:45:24,119 WARN L188 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-08 02:45:24,379 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:45:24,626 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:45:25,566 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:45:25,935 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:45:26,302 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 02:45:26,692 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:45:28,691 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 51 [2019-09-08 02:45:31,238 WARN L188 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:45:35,558 WARN L188 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:45:36,647 WARN L188 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 02:45:37,158 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:45:37,564 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:45:38,048 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 02:45:38,474 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 02:45:55,744 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-08 02:45:58,676 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 26 [2019-09-08 02:46:00,547 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:46:01,867 WARN L188 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:02,065 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:04,438 WARN L188 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:05,272 WARN L188 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:05,518 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:06,436 WARN L188 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:06,650 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 02:46:07,536 WARN L188 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:46:07,798 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:08,233 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:08,427 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:08,634 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:11,377 WARN L188 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:46:11,784 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:46:12,108 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:12,911 WARN L188 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:13,332 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:15,217 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:46:16,461 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:19,040 WARN L188 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:19,417 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:21,603 WARN L188 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:22,849 WARN L188 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:24,809 WARN L188 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:46:25,119 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:25,350 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:25,659 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:27,229 WARN L188 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 02:46:28,920 WARN L188 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:46:29,861 WARN L188 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:31,212 WARN L188 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 02:46:33,516 WARN L188 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:34,743 WARN L188 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 02:46:41,358 WARN L188 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 02:46:42,536 WARN L188 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:45,763 WARN L188 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:46:47,715 WARN L188 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:48,802 WARN L188 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:49,007 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:49,328 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:46:49,781 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:50,019 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 02:46:51,148 WARN L188 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 02:46:51,342 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:51,538 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:46:53,733 WARN L188 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:54,351 WARN L188 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:54,545 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:46:56,740 WARN L188 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:46:59,389 WARN L188 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:01,571 WARN L188 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 02:47:01,790 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:02,205 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:47:02,451 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:04,338 WARN L188 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:04,543 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:04,793 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 02:47:08,142 WARN L188 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 02:47:11,265 WARN L188 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:47:14,032 WARN L188 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:18,500 WARN L188 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:47:18,998 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 02:47:19,731 WARN L188 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 50 [2019-09-08 02:47:21,889 WARN L188 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 60 DAG size of output: 60