java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 07:49:03,953 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 07:49:03,955 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 07:49:03,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 07:49:03,976 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 07:49:03,977 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 07:49:03,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 07:49:03,979 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 07:49:03,979 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 07:49:03,980 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 07:49:03,982 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 07:49:03,984 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 07:49:03,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 07:49:03,987 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 07:49:03,988 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 07:49:03,989 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 07:49:03,991 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 07:49:03,994 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 07:49:03,995 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 07:49:03,996 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 07:49:03,997 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 07:49:03,998 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 07:49:03,998 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 07:49:03,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 07:49:03,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 07:49:03,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 07:49:04,000 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 07:49:04,001 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 07:49:04,001 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 07:49:04,021 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 07:49:04,021 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 07:49:04,023 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 07:49:04,023 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 07:49:04,023 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 07:49:04,023 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 07:49:04,024 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 07:49:04,025 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 07:49:04,025 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 07:49:04,025 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 07:49:04,025 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 07:49:04,025 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 07:49:04,026 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 07:49:04,026 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 07:49:04,026 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 07:49:04,026 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 07:49:04,026 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 07:49:04,027 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 07:49:04,027 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 07:49:04,027 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 07:49:04,027 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 07:49:04,027 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 07:49:04,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 07:49:04,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 07:49:04,056 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 07:49:04,067 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 07:49:04,070 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 07:49:04,072 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 07:49:04,072 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 07:49:04,073 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2019-09-08 07:49:04,148 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc24ce8fe/782134dc15c546b3a3ddf1e1cc8b3b18/FLAGf6a2c1b63 [2019-09-08 07:49:04,632 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 07:49:04,633 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded/pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2019-09-08 07:49:04,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc24ce8fe/782134dc15c546b3a3ddf1e1cc8b3b18/FLAGf6a2c1b63 [2019-09-08 07:49:05,007 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc24ce8fe/782134dc15c546b3a3ddf1e1cc8b3b18 [2019-09-08 07:49:05,018 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 07:49:05,020 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 07:49:05,021 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 07:49:05,021 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 07:49:05,025 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 07:49:05,026 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,029 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@245dc3b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05, skipping insertion in model container [2019-09-08 07:49:05,029 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,036 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 07:49:05,082 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 07:49:05,329 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:49:05,433 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 07:49:05,473 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 07:49:05,492 INFO L192 MainTranslator]: Completed translation [2019-09-08 07:49:05,492 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05 WrapperNode [2019-09-08 07:49:05,493 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 07:49:05,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 07:49:05,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 07:49:05,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 07:49:05,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,504 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,511 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,511 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,537 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,539 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (1/1) ... [2019-09-08 07:49:05,543 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 07:49:05,544 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 07:49:05,544 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 07:49:05,544 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 07:49:05,545 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (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 07:49:05,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 07:49:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 07:49:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure node1 [2019-09-08 07:49:05,594 INFO L138 BoogieDeclarations]: Found implementation of procedure node2 [2019-09-08 07:49:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure node3 [2019-09-08 07:49:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure init [2019-09-08 07:49:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure check [2019-09-08 07:49:05,595 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 07:49:05,596 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2019-09-08 07:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 07:49:05,596 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 07:49:05,597 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 07:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 07:49:05,598 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 07:49:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 07:49:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 07:49:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 07:49:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 07:49:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 07:49:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 07:49:06,102 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 07:49:06,102 INFO L283 CfgBuilder]: Removed 1 assume(true) statements. [2019-09-08 07:49:06,104 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:49:06 BoogieIcfgContainer [2019-09-08 07:49:06,104 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 07:49:06,105 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 07:49:06,105 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 07:49:06,108 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 07:49:06,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 07:49:05" (1/3) ... [2019-09-08 07:49:06,109 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542d7c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:49:06, skipping insertion in model container [2019-09-08 07:49:06,109 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 07:49:05" (2/3) ... [2019-09-08 07:49:06,110 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@542d7c31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 07:49:06, skipping insertion in model container [2019-09-08 07:49:06,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 07:49:06" (3/3) ... [2019-09-08 07:49:06,112 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3_overflow.ufo.UNBOUNDED.pals.c [2019-09-08 07:49:06,122 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 07:49:06,129 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 07:49:06,144 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 07:49:06,172 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 07:49:06,172 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 07:49:06,172 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 07:49:06,173 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 07:49:06,173 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 07:49:06,173 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 07:49:06,173 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 07:49:06,173 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 07:49:06,174 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 07:49:06,193 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states. [2019-09-08 07:49:06,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-08 07:49:06,201 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:06,202 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:06,204 INFO L418 AbstractCegarLoop]: === Iteration 1 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:06,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:06,208 INFO L82 PathProgramCache]: Analyzing trace with hash -1630290558, now seen corresponding path program 1 times [2019-09-08 07:49:06,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:06,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:06,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:06,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:06,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:06,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:06,536 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 07:49:06,539 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:06,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:49:06,545 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:49:06,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:49:06,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:49:06,557 INFO L87 Difference]: Start difference. First operand 86 states. Second operand 5 states. [2019-09-08 07:49:06,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:06,690 INFO L93 Difference]: Finished difference Result 143 states and 205 transitions. [2019-09-08 07:49:06,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 07:49:06,692 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 47 [2019-09-08 07:49:06,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:06,707 INFO L225 Difference]: With dead ends: 143 [2019-09-08 07:49:06,707 INFO L226 Difference]: Without dead ends: 81 [2019-09-08 07:49:06,716 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 07:49:06,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2019-09-08 07:49:06,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2019-09-08 07:49:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 81 states. [2019-09-08 07:49:06,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 101 transitions. [2019-09-08 07:49:06,787 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 101 transitions. Word has length 47 [2019-09-08 07:49:06,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:06,788 INFO L475 AbstractCegarLoop]: Abstraction has 81 states and 101 transitions. [2019-09-08 07:49:06,788 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:49:06,788 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 101 transitions. [2019-09-08 07:49:06,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-08 07:49:06,792 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:06,792 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:06,792 INFO L418 AbstractCegarLoop]: === Iteration 2 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:06,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:06,793 INFO L82 PathProgramCache]: Analyzing trace with hash -922685137, now seen corresponding path program 1 times [2019-09-08 07:49:06,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:06,793 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:06,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:06,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:06,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:07,182 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 07:49:07,183 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:07,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:49:07,187 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:49:07,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:49:07,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:49:07,188 INFO L87 Difference]: Start difference. First operand 81 states and 101 transitions. Second operand 9 states. [2019-09-08 07:49:08,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:08,817 INFO L93 Difference]: Finished difference Result 452 states and 640 transitions. [2019-09-08 07:49:08,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-08 07:49:08,819 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 62 [2019-09-08 07:49:08,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:08,828 INFO L225 Difference]: With dead ends: 452 [2019-09-08 07:49:08,828 INFO L226 Difference]: Without dead ends: 399 [2019-09-08 07:49:08,830 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=181, Invalid=469, Unknown=0, NotChecked=0, Total=650 [2019-09-08 07:49:08,831 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2019-09-08 07:49:08,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 246. [2019-09-08 07:49:08,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-08 07:49:08,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 332 transitions. [2019-09-08 07:49:08,891 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 332 transitions. Word has length 62 [2019-09-08 07:49:08,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:08,891 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 332 transitions. [2019-09-08 07:49:08,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:49:08,892 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 332 transitions. [2019-09-08 07:49:08,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:49:08,895 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:08,895 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:08,896 INFO L418 AbstractCegarLoop]: === Iteration 3 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:08,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:08,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2029847105, now seen corresponding path program 1 times [2019-09-08 07:49:08,896 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:08,897 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:08,898 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:08,898 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:08,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:08,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:08,958 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 07:49:08,958 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:08,958 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 07:49:08,959 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 07:49:08,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 07:49:08,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 07:49:08,960 INFO L87 Difference]: Start difference. First operand 246 states and 332 transitions. Second operand 3 states. [2019-09-08 07:49:09,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:09,001 INFO L93 Difference]: Finished difference Result 655 states and 911 transitions. [2019-09-08 07:49:09,002 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 07:49:09,002 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 64 [2019-09-08 07:49:09,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:09,006 INFO L225 Difference]: With dead ends: 655 [2019-09-08 07:49:09,006 INFO L226 Difference]: Without dead ends: 437 [2019-09-08 07:49:09,008 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 07:49:09,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 437 states. [2019-09-08 07:49:09,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 437 to 435. [2019-09-08 07:49:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-09-08 07:49:09,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 590 transitions. [2019-09-08 07:49:09,050 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 590 transitions. Word has length 64 [2019-09-08 07:49:09,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:09,051 INFO L475 AbstractCegarLoop]: Abstraction has 435 states and 590 transitions. [2019-09-08 07:49:09,051 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 07:49:09,051 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 590 transitions. [2019-09-08 07:49:09,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:49:09,054 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:09,054 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:09,055 INFO L418 AbstractCegarLoop]: === Iteration 4 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:09,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:09,055 INFO L82 PathProgramCache]: Analyzing trace with hash 977417735, now seen corresponding path program 1 times [2019-09-08 07:49:09,055 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:09,055 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:09,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:09,057 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:09,057 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:09,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:09,204 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 07:49:09,204 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:09,204 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:49:09,205 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:49:09,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:49:09,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:49:09,206 INFO L87 Difference]: Start difference. First operand 435 states and 590 transitions. Second operand 5 states. [2019-09-08 07:49:09,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:09,547 INFO L93 Difference]: Finished difference Result 1195 states and 1646 transitions. [2019-09-08 07:49:09,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:49:09,550 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-08 07:49:09,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:09,560 INFO L225 Difference]: With dead ends: 1195 [2019-09-08 07:49:09,560 INFO L226 Difference]: Without dead ends: 788 [2019-09-08 07:49:09,562 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:49:09,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 788 states. [2019-09-08 07:49:09,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 788 to 786. [2019-09-08 07:49:09,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 786 states. [2019-09-08 07:49:09,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 786 states to 786 states and 1063 transitions. [2019-09-08 07:49:09,639 INFO L78 Accepts]: Start accepts. Automaton has 786 states and 1063 transitions. Word has length 64 [2019-09-08 07:49:09,639 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:09,639 INFO L475 AbstractCegarLoop]: Abstraction has 786 states and 1063 transitions. [2019-09-08 07:49:09,639 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:49:09,640 INFO L276 IsEmpty]: Start isEmpty. Operand 786 states and 1063 transitions. [2019-09-08 07:49:09,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:49:09,644 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:09,644 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:09,644 INFO L418 AbstractCegarLoop]: === Iteration 5 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:09,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:09,645 INFO L82 PathProgramCache]: Analyzing trace with hash -2121804291, now seen corresponding path program 1 times [2019-09-08 07:49:09,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:09,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:09,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:09,649 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:09,649 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:09,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:09,815 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 07:49:09,815 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:09,815 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:49:09,816 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:49:09,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:49:09,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:49:09,816 INFO L87 Difference]: Start difference. First operand 786 states and 1063 transitions. Second operand 9 states. [2019-09-08 07:49:10,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:10,971 INFO L93 Difference]: Finished difference Result 1636 states and 2263 transitions. [2019-09-08 07:49:10,971 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 07:49:10,972 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-09-08 07:49:10,972 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:10,977 INFO L225 Difference]: With dead ends: 1636 [2019-09-08 07:49:10,977 INFO L226 Difference]: Without dead ends: 878 [2019-09-08 07:49:10,980 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 134 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=165, Invalid=435, Unknown=0, NotChecked=0, Total=600 [2019-09-08 07:49:10,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 878 states. [2019-09-08 07:49:11,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 878 to 784. [2019-09-08 07:49:11,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 784 states. [2019-09-08 07:49:11,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 784 states to 784 states and 1055 transitions. [2019-09-08 07:49:11,032 INFO L78 Accepts]: Start accepts. Automaton has 784 states and 1055 transitions. Word has length 64 [2019-09-08 07:49:11,032 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:11,033 INFO L475 AbstractCegarLoop]: Abstraction has 784 states and 1055 transitions. [2019-09-08 07:49:11,033 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:49:11,033 INFO L276 IsEmpty]: Start isEmpty. Operand 784 states and 1055 transitions. [2019-09-08 07:49:11,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:49:11,034 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:11,035 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:11,035 INFO L418 AbstractCegarLoop]: === Iteration 6 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:11,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:11,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1470952719, now seen corresponding path program 1 times [2019-09-08 07:49:11,036 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:11,036 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:11,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:11,037 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:11,037 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:11,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:11,124 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 07:49:11,125 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:11,125 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:49:11,125 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:49:11,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:49:11,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:49:11,126 INFO L87 Difference]: Start difference. First operand 784 states and 1055 transitions. Second operand 9 states. [2019-09-08 07:49:11,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:11,735 INFO L93 Difference]: Finished difference Result 1799 states and 2405 transitions. [2019-09-08 07:49:11,737 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:49:11,737 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-09-08 07:49:11,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:11,748 INFO L225 Difference]: With dead ends: 1799 [2019-09-08 07:49:11,748 INFO L226 Difference]: Without dead ends: 1043 [2019-09-08 07:49:11,752 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:49:11,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1043 states. [2019-09-08 07:49:11,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1043 to 821. [2019-09-08 07:49:11,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 821 states. [2019-09-08 07:49:11,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 821 states to 821 states and 1103 transitions. [2019-09-08 07:49:11,895 INFO L78 Accepts]: Start accepts. Automaton has 821 states and 1103 transitions. Word has length 64 [2019-09-08 07:49:11,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:11,896 INFO L475 AbstractCegarLoop]: Abstraction has 821 states and 1103 transitions. [2019-09-08 07:49:11,897 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:49:11,897 INFO L276 IsEmpty]: Start isEmpty. Operand 821 states and 1103 transitions. [2019-09-08 07:49:11,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 07:49:11,901 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:11,902 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:11,903 INFO L418 AbstractCegarLoop]: === Iteration 7 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:11,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1521385607, now seen corresponding path program 1 times [2019-09-08 07:49:11,910 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:11,910 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:11,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:11,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:12,036 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 07:49:12,037 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:12,037 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 07:49:12,038 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 07:49:12,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 07:49:12,039 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 07:49:12,039 INFO L87 Difference]: Start difference. First operand 821 states and 1103 transitions. Second operand 9 states. [2019-09-08 07:49:12,591 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:12,591 INFO L93 Difference]: Finished difference Result 1820 states and 2451 transitions. [2019-09-08 07:49:12,592 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 07:49:12,592 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 64 [2019-09-08 07:49:12,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:12,601 INFO L225 Difference]: With dead ends: 1820 [2019-09-08 07:49:12,601 INFO L226 Difference]: Without dead ends: 1036 [2019-09-08 07:49:12,605 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=70, Invalid=170, Unknown=0, NotChecked=0, Total=240 [2019-09-08 07:49:12,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1036 states. [2019-09-08 07:49:12,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1036 to 847. [2019-09-08 07:49:12,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 847 states. [2019-09-08 07:49:12,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 847 states to 847 states and 1135 transitions. [2019-09-08 07:49:12,683 INFO L78 Accepts]: Start accepts. Automaton has 847 states and 1135 transitions. Word has length 64 [2019-09-08 07:49:12,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:12,684 INFO L475 AbstractCegarLoop]: Abstraction has 847 states and 1135 transitions. [2019-09-08 07:49:12,684 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 07:49:12,684 INFO L276 IsEmpty]: Start isEmpty. Operand 847 states and 1135 transitions. [2019-09-08 07:49:12,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 07:49:12,686 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:12,686 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:12,686 INFO L418 AbstractCegarLoop]: === Iteration 8 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:12,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:12,687 INFO L82 PathProgramCache]: Analyzing trace with hash 303572106, now seen corresponding path program 1 times [2019-09-08 07:49:12,687 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:12,688 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:12,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:12,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:12,689 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:12,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:12,844 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 07:49:12,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:12,845 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:49:12,846 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:49:12,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:49:12,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:49:12,847 INFO L87 Difference]: Start difference. First operand 847 states and 1135 transitions. Second operand 5 states. [2019-09-08 07:49:13,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:13,225 INFO L93 Difference]: Finished difference Result 1943 states and 2617 transitions. [2019-09-08 07:49:13,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:49:13,226 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-08 07:49:13,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:13,233 INFO L225 Difference]: With dead ends: 1943 [2019-09-08 07:49:13,233 INFO L226 Difference]: Without dead ends: 1137 [2019-09-08 07:49:13,237 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-09-08 07:49:13,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1137 states. [2019-09-08 07:49:13,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1137 to 1131. [2019-09-08 07:49:13,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1131 states. [2019-09-08 07:49:13,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1131 states to 1131 states and 1509 transitions. [2019-09-08 07:49:13,328 INFO L78 Accepts]: Start accepts. Automaton has 1131 states and 1509 transitions. Word has length 65 [2019-09-08 07:49:13,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:13,329 INFO L475 AbstractCegarLoop]: Abstraction has 1131 states and 1509 transitions. [2019-09-08 07:49:13,329 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:49:13,329 INFO L276 IsEmpty]: Start isEmpty. Operand 1131 states and 1509 transitions. [2019-09-08 07:49:13,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 07:49:13,331 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:13,331 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:13,331 INFO L418 AbstractCegarLoop]: === Iteration 9 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:13,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:13,332 INFO L82 PathProgramCache]: Analyzing trace with hash 1950997067, now seen corresponding path program 1 times [2019-09-08 07:49:13,332 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:13,332 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:13,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:13,334 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:13,334 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:13,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:13,459 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 07:49:13,459 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:13,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 07:49:13,460 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 07:49:13,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 07:49:13,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:49:13,461 INFO L87 Difference]: Start difference. First operand 1131 states and 1509 transitions. Second operand 8 states. [2019-09-08 07:49:13,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:13,631 INFO L93 Difference]: Finished difference Result 1367 states and 1901 transitions. [2019-09-08 07:49:13,631 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 07:49:13,632 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2019-09-08 07:49:13,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:13,640 INFO L225 Difference]: With dead ends: 1367 [2019-09-08 07:49:13,640 INFO L226 Difference]: Without dead ends: 1365 [2019-09-08 07:49:13,642 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2019-09-08 07:49:13,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1365 states. [2019-09-08 07:49:13,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1365 to 1239. [2019-09-08 07:49:13,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1239 states. [2019-09-08 07:49:13,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1239 states to 1239 states and 1619 transitions. [2019-09-08 07:49:13,733 INFO L78 Accepts]: Start accepts. Automaton has 1239 states and 1619 transitions. Word has length 65 [2019-09-08 07:49:13,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:13,733 INFO L475 AbstractCegarLoop]: Abstraction has 1239 states and 1619 transitions. [2019-09-08 07:49:13,733 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 07:49:13,733 INFO L276 IsEmpty]: Start isEmpty. Operand 1239 states and 1619 transitions. [2019-09-08 07:49:13,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 07:49:13,734 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:13,734 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:13,735 INFO L418 AbstractCegarLoop]: === Iteration 10 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:13,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:13,735 INFO L82 PathProgramCache]: Analyzing trace with hash 285503296, now seen corresponding path program 1 times [2019-09-08 07:49:13,735 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:13,735 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:13,736 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:13,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:13,737 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:13,822 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 07:49:13,823 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 07:49:13,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 07:49:13,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:49:13,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:49:13,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:49:13,824 INFO L87 Difference]: Start difference. First operand 1239 states and 1619 transitions. Second operand 5 states. [2019-09-08 07:49:14,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:14,259 INFO L93 Difference]: Finished difference Result 2641 states and 3470 transitions. [2019-09-08 07:49:14,260 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:49:14,260 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-09-08 07:49:14,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:14,271 INFO L225 Difference]: With dead ends: 2641 [2019-09-08 07:49:14,271 INFO L226 Difference]: Without dead ends: 1738 [2019-09-08 07:49:14,275 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:49:14,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1738 states. [2019-09-08 07:49:14,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1738 to 1733. [2019-09-08 07:49:14,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1733 states. [2019-09-08 07:49:14,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1733 states to 1733 states and 2224 transitions. [2019-09-08 07:49:14,503 INFO L78 Accepts]: Start accepts. Automaton has 1733 states and 2224 transitions. Word has length 65 [2019-09-08 07:49:14,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:14,503 INFO L475 AbstractCegarLoop]: Abstraction has 1733 states and 2224 transitions. [2019-09-08 07:49:14,503 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:49:14,504 INFO L276 IsEmpty]: Start isEmpty. Operand 1733 states and 2224 transitions. [2019-09-08 07:49:14,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 07:49:14,506 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:14,507 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:14,507 INFO L418 AbstractCegarLoop]: === Iteration 11 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:14,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:14,508 INFO L82 PathProgramCache]: Analyzing trace with hash 614006174, now seen corresponding path program 1 times [2019-09-08 07:49:14,508 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:14,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:14,509 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:14,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:14,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:14,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:14,611 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2019-09-08 07:49:14,612 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:14,612 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) [2019-09-08 07:49:14,641 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:49:14,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:14,795 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:49:14,815 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:14,952 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2019-09-08 07:49:14,967 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:49:14,967 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [5] total 10 [2019-09-08 07:49:14,968 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 07:49:14,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 07:49:14,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-09-08 07:49:14,969 INFO L87 Difference]: Start difference. First operand 1733 states and 2224 transitions. Second operand 10 states. [2019-09-08 07:49:16,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:16,319 INFO L93 Difference]: Finished difference Result 3167 states and 4066 transitions. [2019-09-08 07:49:16,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 07:49:16,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 102 [2019-09-08 07:49:16,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:16,330 INFO L225 Difference]: With dead ends: 3167 [2019-09-08 07:49:16,330 INFO L226 Difference]: Without dead ends: 1481 [2019-09-08 07:49:16,336 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 107 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=175, Invalid=425, Unknown=0, NotChecked=0, Total=600 [2019-09-08 07:49:16,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1481 states. [2019-09-08 07:49:16,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1481 to 1369. [2019-09-08 07:49:16,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1369 states. [2019-09-08 07:49:16,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1369 states to 1369 states and 1716 transitions. [2019-09-08 07:49:16,498 INFO L78 Accepts]: Start accepts. Automaton has 1369 states and 1716 transitions. Word has length 102 [2019-09-08 07:49:16,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:16,498 INFO L475 AbstractCegarLoop]: Abstraction has 1369 states and 1716 transitions. [2019-09-08 07:49:16,498 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 07:49:16,498 INFO L276 IsEmpty]: Start isEmpty. Operand 1369 states and 1716 transitions. [2019-09-08 07:49:16,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 07:49:16,500 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:16,500 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:16,500 INFO L418 AbstractCegarLoop]: === Iteration 12 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:16,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:16,501 INFO L82 PathProgramCache]: Analyzing trace with hash -862816024, now seen corresponding path program 1 times [2019-09-08 07:49:16,501 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:16,501 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:16,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:16,502 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:16,502 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:16,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:16,599 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 07:49:16,600 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:16,600 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 07:49:16,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:49:16,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:16,721 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:49:16,744 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:16,872 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 25 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 07:49:16,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:49:16,886 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [5] total 12 [2019-09-08 07:49:16,887 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 07:49:16,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 07:49:16,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2019-09-08 07:49:16,888 INFO L87 Difference]: Start difference. First operand 1369 states and 1716 transitions. Second operand 12 states. [2019-09-08 07:49:18,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:18,890 INFO L93 Difference]: Finished difference Result 5284 states and 6760 transitions. [2019-09-08 07:49:18,890 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2019-09-08 07:49:18,891 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2019-09-08 07:49:18,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:18,918 INFO L225 Difference]: With dead ends: 5284 [2019-09-08 07:49:18,918 INFO L226 Difference]: Without dead ends: 3979 [2019-09-08 07:49:18,924 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 142 GetRequests, 109 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 07:49:18,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3979 states. [2019-09-08 07:49:19,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3979 to 3809. [2019-09-08 07:49:19,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3809 states. [2019-09-08 07:49:19,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4746 transitions. [2019-09-08 07:49:19,242 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4746 transitions. Word has length 102 [2019-09-08 07:49:19,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:19,242 INFO L475 AbstractCegarLoop]: Abstraction has 3809 states and 4746 transitions. [2019-09-08 07:49:19,243 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 07:49:19,243 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4746 transitions. [2019-09-08 07:49:19,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 07:49:19,248 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:19,248 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:19,249 INFO L418 AbstractCegarLoop]: === Iteration 13 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:19,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:19,250 INFO L82 PathProgramCache]: Analyzing trace with hash -2059891990, now seen corresponding path program 1 times [2019-09-08 07:49:19,250 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:19,250 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:19,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:19,292 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:19,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:19,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:19,542 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 12 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 07:49:19,543 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:19,543 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) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:49:19,563 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:19,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:19,651 INFO L256 TraceCheckSpWp]: Trace formula consists of 630 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:49:19,658 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:19,803 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 07:49:19,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:49:19,814 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [11] total 17 [2019-09-08 07:49:19,816 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 07:49:19,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 07:49:19,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2019-09-08 07:49:19,817 INFO L87 Difference]: Start difference. First operand 3809 states and 4746 transitions. Second operand 17 states. [2019-09-08 07:49:22,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:22,766 INFO L93 Difference]: Finished difference Result 7146 states and 9388 transitions. [2019-09-08 07:49:22,767 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2019-09-08 07:49:22,767 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 102 [2019-09-08 07:49:22,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:22,804 INFO L225 Difference]: With dead ends: 7146 [2019-09-08 07:49:22,804 INFO L226 Difference]: Without dead ends: 5858 [2019-09-08 07:49:22,813 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 528 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=441, Invalid=1629, Unknown=0, NotChecked=0, Total=2070 [2019-09-08 07:49:22,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5858 states. [2019-09-08 07:49:23,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5858 to 5576. [2019-09-08 07:49:23,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5576 states. [2019-09-08 07:49:23,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5576 states to 5576 states and 7093 transitions. [2019-09-08 07:49:23,343 INFO L78 Accepts]: Start accepts. Automaton has 5576 states and 7093 transitions. Word has length 102 [2019-09-08 07:49:23,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:23,344 INFO L475 AbstractCegarLoop]: Abstraction has 5576 states and 7093 transitions. [2019-09-08 07:49:23,344 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 07:49:23,344 INFO L276 IsEmpty]: Start isEmpty. Operand 5576 states and 7093 transitions. [2019-09-08 07:49:23,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-08 07:49:23,350 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:23,350 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:23,351 INFO L418 AbstractCegarLoop]: === Iteration 14 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:23,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:23,351 INFO L82 PathProgramCache]: Analyzing trace with hash -2119793605, now seen corresponding path program 1 times [2019-09-08 07:49:23,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:23,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:23,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:23,354 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:23,354 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:23,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:23,735 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 10 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 07:49:23,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:23,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 07:49:23,755 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:49:23,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:23,844 INFO L256 TraceCheckSpWp]: Trace formula consists of 629 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:49:23,849 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:24,041 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 8 proven. 17 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 07:49:24,053 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:49:24,053 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 6] total 23 [2019-09-08 07:49:24,054 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 07:49:24,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 07:49:24,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=457, Unknown=0, NotChecked=0, Total=506 [2019-09-08 07:49:24,055 INFO L87 Difference]: Start difference. First operand 5576 states and 7093 transitions. Second operand 23 states. [2019-09-08 07:49:25,667 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 29 DAG size of output: 26 [2019-09-08 07:49:33,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:33,906 INFO L93 Difference]: Finished difference Result 24819 states and 31402 transitions. [2019-09-08 07:49:33,906 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2019-09-08 07:49:33,906 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 103 [2019-09-08 07:49:33,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:34,009 INFO L225 Difference]: With dead ends: 24819 [2019-09-08 07:49:34,010 INFO L226 Difference]: Without dead ends: 19326 [2019-09-08 07:49:34,035 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 249 GetRequests, 129 SyntacticMatches, 1 SemanticMatches, 119 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5009 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=2248, Invalid=12272, Unknown=0, NotChecked=0, Total=14520 [2019-09-08 07:49:34,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19326 states. [2019-09-08 07:49:35,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19326 to 17088. [2019-09-08 07:49:35,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17088 states. [2019-09-08 07:49:35,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17088 states to 17088 states and 21446 transitions. [2019-09-08 07:49:35,442 INFO L78 Accepts]: Start accepts. Automaton has 17088 states and 21446 transitions. Word has length 103 [2019-09-08 07:49:35,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:35,442 INFO L475 AbstractCegarLoop]: Abstraction has 17088 states and 21446 transitions. [2019-09-08 07:49:35,443 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 07:49:35,443 INFO L276 IsEmpty]: Start isEmpty. Operand 17088 states and 21446 transitions. [2019-09-08 07:49:35,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:49:35,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:35,446 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:35,447 INFO L418 AbstractCegarLoop]: === Iteration 15 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:35,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:35,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1822974708, now seen corresponding path program 1 times [2019-09-08 07:49:35,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:35,448 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:35,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:35,449 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:35,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:35,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:35,835 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 16 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 07:49:35,836 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:35,836 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 07:49:35,866 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:35,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-08 07:49:35,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:36,274 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:49:36,659 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:49:36,663 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:49:36,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 15] total 34 [2019-09-08 07:49:36,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 07:49:36,665 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 07:49:36,666 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1016, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 07:49:36,667 INFO L87 Difference]: Start difference. First operand 17088 states and 21446 transitions. Second operand 34 states. [2019-09-08 07:49:37,679 WARN L188 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 34 [2019-09-08 07:49:44,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:44,325 INFO L93 Difference]: Finished difference Result 63156 states and 79347 transitions. [2019-09-08 07:49:44,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2019-09-08 07:49:44,326 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 104 [2019-09-08 07:49:44,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:44,550 INFO L225 Difference]: With dead ends: 63156 [2019-09-08 07:49:44,551 INFO L226 Difference]: Without dead ends: 48538 [2019-09-08 07:49:44,631 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 99 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2737 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=1783, Invalid=8317, Unknown=0, NotChecked=0, Total=10100 [2019-09-08 07:49:44,698 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48538 states. [2019-09-08 07:49:48,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48538 to 44793. [2019-09-08 07:49:48,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44793 states. [2019-09-08 07:49:48,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44793 states to 44793 states and 56706 transitions. [2019-09-08 07:49:48,565 INFO L78 Accepts]: Start accepts. Automaton has 44793 states and 56706 transitions. Word has length 104 [2019-09-08 07:49:48,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:48,566 INFO L475 AbstractCegarLoop]: Abstraction has 44793 states and 56706 transitions. [2019-09-08 07:49:48,566 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-09-08 07:49:48,566 INFO L276 IsEmpty]: Start isEmpty. Operand 44793 states and 56706 transitions. [2019-09-08 07:49:48,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:49:48,571 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:48,572 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:48,572 INFO L418 AbstractCegarLoop]: === Iteration 16 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:48,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:48,573 INFO L82 PathProgramCache]: Analyzing trace with hash 228690026, now seen corresponding path program 1 times [2019-09-08 07:49:48,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:48,573 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:48,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:48,581 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:48,581 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:48,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:48,664 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-09-08 07:49:48,664 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:48,664 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 07:49:48,680 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 07:49:48,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:48,771 INFO L256 TraceCheckSpWp]: Trace formula consists of 636 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 07:49:48,776 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:48,864 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 27 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:49:48,874 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:49:48,879 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 11] total 13 [2019-09-08 07:49:48,880 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 07:49:48,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 07:49:48,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-09-08 07:49:48,881 INFO L87 Difference]: Start difference. First operand 44793 states and 56706 transitions. Second operand 13 states. [2019-09-08 07:49:51,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:49:51,752 INFO L93 Difference]: Finished difference Result 63148 states and 80765 transitions. [2019-09-08 07:49:51,752 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 07:49:51,752 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 104 [2019-09-08 07:49:51,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:49:51,839 INFO L225 Difference]: With dead ends: 63148 [2019-09-08 07:49:51,840 INFO L226 Difference]: Without dead ends: 21301 [2019-09-08 07:49:51,929 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 101 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=95, Invalid=325, Unknown=0, NotChecked=0, Total=420 [2019-09-08 07:49:51,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21301 states. [2019-09-08 07:49:53,574 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21301 to 20059. [2019-09-08 07:49:53,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20059 states. [2019-09-08 07:49:53,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20059 states to 20059 states and 24732 transitions. [2019-09-08 07:49:53,611 INFO L78 Accepts]: Start accepts. Automaton has 20059 states and 24732 transitions. Word has length 104 [2019-09-08 07:49:53,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:49:53,611 INFO L475 AbstractCegarLoop]: Abstraction has 20059 states and 24732 transitions. [2019-09-08 07:49:53,612 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 07:49:53,612 INFO L276 IsEmpty]: Start isEmpty. Operand 20059 states and 24732 transitions. [2019-09-08 07:49:53,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:49:53,615 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:49:53,616 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:49:53,616 INFO L418 AbstractCegarLoop]: === Iteration 17 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:49:53,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:49:53,616 INFO L82 PathProgramCache]: Analyzing trace with hash 592624872, now seen corresponding path program 1 times [2019-09-08 07:49:53,617 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:49:53,617 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:49:53,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:53,618 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:53,618 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:49:53,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:53,936 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2019-09-08 07:49:53,936 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:49:53,936 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 07:49:53,964 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:49:54,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:49:54,057 INFO L256 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 32 conjunts are in the unsatisfiable core [2019-09-08 07:49:54,061 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:49:54,405 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:49:55,299 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:49:55,304 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:49:55,304 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 17] total 34 [2019-09-08 07:49:55,304 INFO L454 AbstractCegarLoop]: Interpolant automaton has 34 states [2019-09-08 07:49:55,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2019-09-08 07:49:55,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 07:49:55,305 INFO L87 Difference]: Start difference. First operand 20059 states and 24732 transitions. Second operand 34 states. [2019-09-08 07:49:56,765 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 07:49:57,233 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-08 07:49:57,582 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-08 07:49:57,859 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-08 07:49:58,141 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-08 07:49:58,398 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 07:49:58,661 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-08 07:49:58,888 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-08 07:49:59,164 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:49:59,406 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-08 07:49:59,725 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:49:59,991 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-08 07:50:00,273 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-08 07:50:00,565 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-08 07:50:00,811 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:50:01,062 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-08 07:50:01,412 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-08 07:50:01,599 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:01,954 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-08 07:50:02,147 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:50:02,421 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:50:02,710 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 07:50:03,165 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 81 [2019-09-08 07:50:03,373 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 07:50:03,634 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2019-09-08 07:50:03,899 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-08 07:50:04,074 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 07:50:04,277 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-08 07:50:04,556 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-08 07:50:04,834 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-08 07:50:05,029 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:50:05,202 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:50:05,444 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-08 07:50:05,692 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-08 07:50:05,866 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:50:06,047 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 07:50:06,543 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2019-09-08 07:50:06,725 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-08 07:50:06,921 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:50:07,251 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-08 07:50:07,472 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-08 07:50:07,704 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:50:08,813 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:50:09,038 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 07:50:09,286 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:09,467 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 07:50:10,719 WARN L188 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:50:10,885 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-08 07:50:11,119 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:50:11,289 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-08 07:50:11,559 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:11,768 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:50:12,019 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-08 07:50:12,208 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 07:50:12,494 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 88 [2019-09-08 07:50:12,708 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:50:12,998 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-08 07:50:13,300 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-08 07:50:13,475 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 07:50:13,698 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 71 [2019-09-08 07:50:14,029 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-08 07:50:14,363 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-08 07:50:14,610 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:14,880 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-08 07:50:15,099 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:50:15,294 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 07:50:15,555 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:50:15,874 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 86 [2019-09-08 07:50:16,084 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:50:16,337 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:16,755 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-08 07:50:16,944 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-08 07:50:17,168 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-08 07:50:17,409 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 07:50:17,728 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-08 07:50:17,883 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:50:18,223 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 07:50:18,391 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:50:18,758 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 07:50:18,975 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 07:50:19,279 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:50:19,542 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 57 [2019-09-08 07:50:19,767 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-08 07:50:20,307 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:50:20,605 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-09-08 07:50:21,046 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:50:21,386 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-08 07:50:21,764 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 89 [2019-09-08 07:50:21,954 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:50:22,314 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2019-09-08 07:50:22,539 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-08 07:50:22,756 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:50:23,138 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:23,465 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-08 07:50:23,768 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-08 07:50:24,068 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:24,240 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:50:24,585 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 90 [2019-09-08 07:50:24,816 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-08 07:50:24,997 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:50:25,208 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:50:25,460 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-08 07:50:25,715 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:26,000 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-08 07:50:26,309 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:26,601 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:50:26,794 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-08 07:50:27,111 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:50:27,337 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-08 07:50:27,526 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:50:27,718 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:50:27,960 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:50:28,217 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:50:28,477 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:28,842 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-08 07:50:29,101 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:29,285 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 07:50:29,664 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 91 [2019-09-08 07:50:29,923 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-08 07:50:30,098 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 07:50:30,330 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-08 07:50:30,540 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:50:30,810 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 81 [2019-09-08 07:50:31,111 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2019-09-08 07:50:31,525 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-08 07:50:31,725 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:50:32,009 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:50:32,299 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:32,763 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:50:33,155 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:50:33,339 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-08 07:50:33,541 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-08 07:50:33,849 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:50:34,088 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:50:34,358 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 07:50:34,689 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 07:50:35,136 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:50:35,532 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:35,916 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:50:36,261 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:50:36,538 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:36,737 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:50:36,978 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:50:38,756 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-08 07:50:38,977 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-08 07:50:39,232 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:39,497 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:39,759 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2019-09-08 07:50:40,036 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-08 07:50:40,296 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-08 07:50:40,563 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:40,761 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:50:40,947 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:50:41,151 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 07:50:41,333 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-08 07:50:41,513 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 07:50:41,717 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:50:41,973 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:50:42,238 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:50:42,507 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:42,753 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:42,990 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:50:43,272 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-09-08 07:50:43,502 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:50:43,715 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-08 07:50:43,982 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:44,245 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-08 07:50:44,486 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:50:44,662 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:50:44,842 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:50:45,014 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 07:50:45,195 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 07:50:45,351 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 07:50:45,585 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:50:45,832 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:46,063 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:46,322 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:50:46,577 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:46,797 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-08 07:50:47,047 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-08 07:50:47,275 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:50:47,452 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:50:47,791 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:50:47,950 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:50:48,182 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:50:48,428 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-08 07:50:48,786 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 07:50:49,030 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-08 07:50:49,275 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:50:49,498 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 07:50:49,746 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 07:50:49,934 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 07:50:50,684 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:50,942 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:51,192 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:50:51,442 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 07:50:51,705 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:51,977 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:50:52,215 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 07:50:52,408 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 07:50:52,754 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:53,017 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:50:53,232 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 07:50:53,436 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 07:50:53,715 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:53,976 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:54,226 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:54,469 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:50:54,665 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-08 07:50:54,861 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 07:50:55,041 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 07:50:55,227 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 07:50:55,488 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-08 07:50:55,737 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:50:56,018 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:50:56,291 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:50:56,539 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:50:56,786 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:50:57,009 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:57,240 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:50:57,514 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:50:57,764 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-08 07:50:58,029 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:50:58,285 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:50:58,540 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:50:58,783 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:50:58,954 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:50:59,129 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:50:59,316 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:50:59,504 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 07:50:59,693 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 07:50:59,961 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:51:00,206 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-08 07:51:00,446 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 07:51:00,686 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:51:00,923 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:51:01,154 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2019-09-08 07:51:01,328 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:51:01,576 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2019-09-08 07:51:01,753 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:51:02,009 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:51:02,249 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:51:02,525 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:51:02,751 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:51:03,105 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-08 07:51:03,275 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 07:51:03,504 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:51:03,843 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-08 07:51:04,007 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-08 07:51:04,246 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:51:04,419 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 07:51:04,593 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 07:51:04,769 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 07:51:04,977 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 75 [2019-09-08 07:51:05,164 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2019-09-08 07:51:05,411 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:51:05,645 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:51:05,982 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:51:06,152 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 07:51:06,392 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 07:51:06,648 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:51:06,823 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 07:51:07,051 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:51:07,247 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-08 07:51:07,756 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2019-09-08 07:51:07,950 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 07:51:08,731 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-08 07:51:10,645 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:51:10,848 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:51:11,902 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 07:51:12,104 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 07:51:12,348 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:51:12,551 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-08 07:51:12,763 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-08 07:51:12,970 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 07:51:13,235 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:51:13,506 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:51:13,672 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:51:13,858 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-08 07:51:14,043 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-08 07:51:14,316 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2019-09-08 07:51:14,498 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-08 07:51:14,759 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2019-09-08 07:51:15,015 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-08 07:51:15,191 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-08 07:51:15,464 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-08 07:51:15,641 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-08 07:51:15,832 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:51:16,035 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-08 07:51:16,232 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:51:16,440 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 07:51:16,642 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 07:51:16,837 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-09-08 07:51:17,021 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 07:51:17,226 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 07:51:17,407 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 07:51:17,592 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-08 07:51:17,768 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2019-09-08 07:51:18,034 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-08 07:51:18,293 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-08 07:51:18,553 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:51:18,733 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:51:18,925 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 65 [2019-09-08 07:51:19,153 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:51:19,327 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 07:51:19,509 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:51:19,698 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:51:19,962 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:51:20,220 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-08 07:51:20,400 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:51:20,592 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:51:20,847 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2019-09-08 07:51:21,118 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-08 07:51:21,272 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-08 07:51:21,513 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2019-09-08 07:51:21,679 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-08 07:51:21,913 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-08 07:51:22,157 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:51:22,422 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:51:22,633 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:51:22,815 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:51:23,059 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:51:23,332 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-08 07:51:23,518 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:51:23,727 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 58 [2019-09-08 07:51:23,908 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 07:51:24,090 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:51:24,290 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 07:51:24,475 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 07:51:24,655 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:51:24,855 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 07:51:25,053 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 07:51:25,271 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 07:51:25,443 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 07:51:25,626 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 07:51:25,822 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 07:51:26,019 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-08 07:51:26,211 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 07:51:26,411 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 07:51:26,591 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2019-09-08 07:51:26,802 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 07:51:27,064 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-09-08 07:51:27,341 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:51:27,505 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 07:51:27,749 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:51:28,022 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 07:51:28,285 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:51:28,475 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 07:51:28,685 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 07:51:28,888 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:51:29,067 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:51:29,308 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:51:29,561 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:51:29,745 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:51:30,227 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:51:30,515 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-08 07:51:30,716 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:51:30,930 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 07:51:31,102 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 07:51:31,299 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 07:51:31,508 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:51:31,746 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 07:51:31,947 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 07:51:32,154 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 07:51:32,420 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 07:51:32,627 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 07:51:33,132 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 07:51:33,407 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:51:34,159 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 07:51:34,987 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:51:35,220 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-08 07:51:35,591 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 07:51:36,154 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:51:36,486 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-08 07:51:36,859 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:51:37,321 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:51:37,524 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:51:37,838 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:51:38,097 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:51:38,297 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:51:40,580 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 07:51:40,838 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:51:41,037 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:51:41,264 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:51:41,432 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:51:41,745 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:51:42,935 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 07:51:43,494 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-08 07:51:43,744 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:51:43,995 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:51:44,181 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 07:51:44,387 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 07:51:44,868 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:51:45,160 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-09-08 07:51:45,438 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:51:45,631 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:51:45,869 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:51:46,317 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:51:46,534 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:51:46,846 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2019-09-08 07:51:47,150 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 88 [2019-09-08 07:51:47,429 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 89 [2019-09-08 07:51:47,721 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:51:47,914 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:51:48,162 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:51:48,440 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:51:48,719 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:51:48,907 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 07:51:49,093 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 07:51:49,366 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-08 07:51:49,626 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 87 [2019-09-08 07:51:49,828 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2019-09-08 07:51:50,080 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 85 [2019-09-08 07:51:50,281 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2019-09-08 07:51:50,523 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-08 07:51:50,696 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:51:50,955 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:51:51,196 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:51:51,448 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:51:51,803 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 82 [2019-09-08 07:51:51,987 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:51:52,339 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:51:52,676 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-08 07:51:52,866 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:51:53,068 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:51:53,304 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 77 [2019-09-08 07:51:53,482 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-08 07:51:53,785 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:51:54,013 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2019-09-08 07:51:54,189 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:51:54,515 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 72 [2019-09-08 07:51:54,680 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 07:51:54,909 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 77 [2019-09-08 07:51:55,116 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:51:55,296 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:51:55,482 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:51:55,741 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:51:56,022 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 07:51:56,378 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-08 07:51:56,889 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 07:51:58,836 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 80 [2019-09-08 07:51:59,046 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2019-09-08 07:51:59,550 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 68 [2019-09-08 07:51:59,778 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 70 [2019-09-08 07:51:59,991 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 81 [2019-09-08 07:52:00,210 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2019-09-08 07:52:00,510 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:52:00,761 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-08 07:52:01,077 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:52:01,290 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-08 07:52:01,492 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:52:01,712 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:52:01,930 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2019-09-08 07:52:02,158 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 71 [2019-09-08 07:52:02,457 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:52:02,706 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2019-09-08 07:52:02,896 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 07:52:03,078 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 73 [2019-09-08 07:52:03,327 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:52:03,507 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-08 07:52:03,894 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 71 [2019-09-08 07:52:04,071 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 07:52:04,357 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-08 07:52:04,580 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:52:04,816 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:52:05,109 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:52:05,283 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-08 07:52:05,580 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-08 07:52:05,781 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:52:05,973 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 07:52:06,181 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:52:06,374 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:52:06,570 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 72 [2019-09-08 07:52:06,902 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:52:07,176 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:52:07,496 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:52:07,740 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:52:07,921 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 07:52:08,215 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:52:08,400 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:52:08,826 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:52:09,217 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 07:52:09,640 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:52:10,959 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:52:11,164 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:52:11,385 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:52:11,559 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-08 07:52:11,767 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:52:11,946 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 07:52:12,124 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 07:52:12,333 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:52:12,572 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:52:12,745 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:52:12,925 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 07:52:13,109 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 07:52:13,485 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:52:13,904 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:52:14,091 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:52:14,307 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 64 [2019-09-08 07:52:14,505 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:52:14,655 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 07:52:14,841 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 07:52:15,076 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 56 [2019-09-08 07:52:15,263 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 07:52:17,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:52:17,653 INFO L93 Difference]: Finished difference Result 82934 states and 101814 transitions. [2019-09-08 07:52:17,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 555 states. [2019-09-08 07:52:17,654 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 104 [2019-09-08 07:52:17,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:52:17,890 INFO L225 Difference]: With dead ends: 82934 [2019-09-08 07:52:17,891 INFO L226 Difference]: Without dead ends: 64091 [2019-09-08 07:52:17,991 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 982 GetRequests, 390 SyntacticMatches, 7 SemanticMatches, 585 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 159577 ImplicationChecksByTransitivity, 118.6s TimeCoverageRelationStatistics Valid=23281, Invalid=320701, Unknown=0, NotChecked=0, Total=343982 [2019-09-08 07:52:18,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64091 states. [2019-09-08 07:52:23,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64091 to 54812. [2019-09-08 07:52:23,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54812 states. [2019-09-08 07:52:23,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54812 states to 54812 states and 67878 transitions. [2019-09-08 07:52:23,695 INFO L78 Accepts]: Start accepts. Automaton has 54812 states and 67878 transitions. Word has length 104 [2019-09-08 07:52:23,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:52:23,695 INFO L475 AbstractCegarLoop]: Abstraction has 54812 states and 67878 transitions. [2019-09-08 07:52:23,695 INFO L476 AbstractCegarLoop]: Interpolant automaton has 34 states. [2019-09-08 07:52:23,696 INFO L276 IsEmpty]: Start isEmpty. Operand 54812 states and 67878 transitions. [2019-09-08 07:52:23,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:52:23,701 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:52:23,701 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:52:23,701 INFO L418 AbstractCegarLoop]: === Iteration 18 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:52:23,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:52:23,702 INFO L82 PathProgramCache]: Analyzing trace with hash 136794870, now seen corresponding path program 1 times [2019-09-08 07:52:23,702 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:52:23,702 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:52:23,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:52:23,703 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:52:23,703 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:52:23,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:52:24,171 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 07:52:24,171 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:52:24,171 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 07:52:24,182 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:52:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:52:24,264 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 07:52:24,267 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:52:24,441 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:52:24,444 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:52:24,445 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 9] total 25 [2019-09-08 07:52:24,446 INFO L454 AbstractCegarLoop]: Interpolant automaton has 25 states [2019-09-08 07:52:24,446 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2019-09-08 07:52:24,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=543, Unknown=0, NotChecked=0, Total=600 [2019-09-08 07:52:24,447 INFO L87 Difference]: Start difference. First operand 54812 states and 67878 transitions. Second operand 25 states. [2019-09-08 07:52:25,689 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 43 [2019-09-08 07:52:25,971 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-08 07:52:26,156 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-08 07:52:26,417 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-08 07:52:26,803 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 39 [2019-09-08 07:52:26,939 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2019-09-08 07:52:27,907 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-08 07:52:28,049 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 42 [2019-09-08 07:52:28,976 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 07:52:29,123 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2019-09-08 07:52:30,874 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 35 [2019-09-08 07:52:31,472 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 39 [2019-09-08 07:52:33,254 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-08 07:52:33,397 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 42 [2019-09-08 07:52:36,082 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 44 [2019-09-08 07:52:36,289 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 40 [2019-09-08 07:52:36,457 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2019-09-08 07:52:37,398 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2019-09-08 07:52:37,588 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-08 07:52:37,946 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2019-09-08 07:52:38,198 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 45 [2019-09-08 07:52:38,369 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2019-09-08 07:52:38,557 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-08 07:52:38,968 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-08 07:52:39,103 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2019-09-08 07:52:39,239 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 07:52:39,860 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 46 [2019-09-08 07:52:40,141 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 42 [2019-09-08 07:52:40,273 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 40 [2019-09-08 07:52:40,706 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 44 [2019-09-08 07:52:41,088 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 43 [2019-09-08 07:52:41,232 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 44 [2019-09-08 07:52:41,779 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2019-09-08 07:52:43,531 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 41 [2019-09-08 07:52:45,481 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 44 [2019-09-08 07:52:45,669 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 45 [2019-09-08 07:52:45,979 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 07:52:46,316 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-08 07:52:52,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:52:52,918 INFO L93 Difference]: Finished difference Result 129780 states and 160489 transitions. [2019-09-08 07:52:52,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 183 states. [2019-09-08 07:52:52,919 INFO L78 Accepts]: Start accepts. Automaton has 25 states. Word has length 104 [2019-09-08 07:52:52,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:52:53,163 INFO L225 Difference]: With dead ends: 129780 [2019-09-08 07:52:53,163 INFO L226 Difference]: Without dead ends: 78564 [2019-09-08 07:52:53,266 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 384 GetRequests, 178 SyntacticMatches, 3 SemanticMatches, 203 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17105 ImplicationChecksByTransitivity, 15.4s TimeCoverageRelationStatistics Valid=4771, Invalid=37049, Unknown=0, NotChecked=0, Total=41820 [2019-09-08 07:52:53,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78564 states. [2019-09-08 07:53:01,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78564 to 71009. [2019-09-08 07:53:01,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71009 states. [2019-09-08 07:53:01,688 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71009 states to 71009 states and 86764 transitions. [2019-09-08 07:53:01,696 INFO L78 Accepts]: Start accepts. Automaton has 71009 states and 86764 transitions. Word has length 104 [2019-09-08 07:53:01,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:01,697 INFO L475 AbstractCegarLoop]: Abstraction has 71009 states and 86764 transitions. [2019-09-08 07:53:01,697 INFO L476 AbstractCegarLoop]: Interpolant automaton has 25 states. [2019-09-08 07:53:01,697 INFO L276 IsEmpty]: Start isEmpty. Operand 71009 states and 86764 transitions. [2019-09-08 07:53:01,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:53:01,702 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:01,702 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:01,703 INFO L418 AbstractCegarLoop]: === Iteration 19 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:01,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:01,703 INFO L82 PathProgramCache]: Analyzing trace with hash -1036736970, now seen corresponding path program 1 times [2019-09-08 07:53:01,703 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:01,703 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:01,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:01,705 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:01,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:01,796 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2019-09-08 07:53:01,796 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:01,797 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 07:53:01,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:53:01,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:01,905 INFO L256 TraceCheckSpWp]: Trace formula consists of 632 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 07:53:01,908 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:53:01,933 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (10)] Abandoning pump threads because process wont die! [2019-09-08 07:53:02,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:53:02,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 5 [2019-09-08 07:53:02,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 07:53:02,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 07:53:02,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 07:53:02,161 INFO L87 Difference]: Start difference. First operand 71009 states and 86764 transitions. Second operand 5 states. [2019-09-08 07:53:06,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:53:06,850 INFO L93 Difference]: Finished difference Result 102342 states and 125522 transitions. [2019-09-08 07:53:06,850 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 07:53:06,850 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 104 [2019-09-08 07:53:06,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:53:06,939 INFO L225 Difference]: With dead ends: 102342 [2019-09-08 07:53:06,939 INFO L226 Difference]: Without dead ends: 33033 [2019-09-08 07:53:07,025 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 105 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-08 07:53:07,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33033 states. [2019-09-08 07:53:10,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33033 to 33031. [2019-09-08 07:53:10,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33031 states. [2019-09-08 07:53:10,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33031 states to 33031 states and 39334 transitions. [2019-09-08 07:53:10,231 INFO L78 Accepts]: Start accepts. Automaton has 33031 states and 39334 transitions. Word has length 104 [2019-09-08 07:53:10,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:10,231 INFO L475 AbstractCegarLoop]: Abstraction has 33031 states and 39334 transitions. [2019-09-08 07:53:10,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 07:53:10,231 INFO L276 IsEmpty]: Start isEmpty. Operand 33031 states and 39334 transitions. [2019-09-08 07:53:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:53:10,234 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:10,234 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:10,235 INFO L418 AbstractCegarLoop]: === Iteration 20 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:10,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:10,235 INFO L82 PathProgramCache]: Analyzing trace with hash -1588957706, now seen corresponding path program 1 times [2019-09-08 07:53:10,235 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:10,235 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:10,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:10,236 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:10,236 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:10,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:10,495 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 12 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 07:53:10,496 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:10,496 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) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:53:10,507 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:10,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:10,597 INFO L256 TraceCheckSpWp]: Trace formula consists of 628 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 07:53:10,600 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:53:10,770 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 25 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:53:10,779 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:53:10,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9] total 24 [2019-09-08 07:53:10,780 INFO L454 AbstractCegarLoop]: Interpolant automaton has 24 states [2019-09-08 07:53:10,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2019-09-08 07:53:10,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2019-09-08 07:53:10,781 INFO L87 Difference]: Start difference. First operand 33031 states and 39334 transitions. Second operand 24 states. [2019-09-08 07:53:11,956 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 21 [2019-09-08 07:53:15,828 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2019-09-08 07:53:23,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:53:23,515 INFO L93 Difference]: Finished difference Result 75680 states and 89981 transitions. [2019-09-08 07:53:23,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 116 states. [2019-09-08 07:53:23,515 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 104 [2019-09-08 07:53:23,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:53:23,630 INFO L225 Difference]: With dead ends: 75680 [2019-09-08 07:53:23,631 INFO L226 Difference]: Without dead ends: 44484 [2019-09-08 07:53:23,684 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 150 SyntacticMatches, 1 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6658 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=2241, Invalid=15849, Unknown=0, NotChecked=0, Total=18090 [2019-09-08 07:53:23,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44484 states. [2019-09-08 07:53:28,102 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44484 to 41769. [2019-09-08 07:53:28,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41769 states. [2019-09-08 07:53:28,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41769 states to 41769 states and 49183 transitions. [2019-09-08 07:53:28,172 INFO L78 Accepts]: Start accepts. Automaton has 41769 states and 49183 transitions. Word has length 104 [2019-09-08 07:53:28,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:28,173 INFO L475 AbstractCegarLoop]: Abstraction has 41769 states and 49183 transitions. [2019-09-08 07:53:28,173 INFO L476 AbstractCegarLoop]: Interpolant automaton has 24 states. [2019-09-08 07:53:28,173 INFO L276 IsEmpty]: Start isEmpty. Operand 41769 states and 49183 transitions. [2019-09-08 07:53:28,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 07:53:28,176 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:28,176 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:28,176 INFO L418 AbstractCegarLoop]: === Iteration 21 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:28,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:28,176 INFO L82 PathProgramCache]: Analyzing trace with hash 912556532, now seen corresponding path program 1 times [2019-09-08 07:53:28,176 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:28,176 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:28,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:28,178 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:28,178 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:28,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:28,426 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 10 proven. 8 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 07:53:28,426 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:28,426 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 07:53:28,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:53:28,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:28,534 INFO L256 TraceCheckSpWp]: Trace formula consists of 626 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 07:53:28,537 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:53:28,735 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 15 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:53:28,748 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:53:28,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 9] total 23 [2019-09-08 07:53:28,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 07:53:28,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 07:53:28,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=456, Unknown=0, NotChecked=0, Total=506 [2019-09-08 07:53:28,751 INFO L87 Difference]: Start difference. First operand 41769 states and 49183 transitions. Second operand 23 states. [2019-09-08 07:53:33,067 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 36 [2019-09-08 07:53:35,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:53:35,822 INFO L93 Difference]: Finished difference Result 74240 states and 87465 transitions. [2019-09-08 07:53:35,822 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-09-08 07:53:35,823 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 104 [2019-09-08 07:53:35,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:53:35,881 INFO L225 Difference]: With dead ends: 74240 [2019-09-08 07:53:35,881 INFO L226 Difference]: Without dead ends: 32351 [2019-09-08 07:53:35,915 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 111 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 914 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=780, Invalid=3126, Unknown=0, NotChecked=0, Total=3906 [2019-09-08 07:53:35,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32351 states. [2019-09-08 07:53:38,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32351 to 30755. [2019-09-08 07:53:38,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30755 states. [2019-09-08 07:53:39,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30755 states to 30755 states and 36008 transitions. [2019-09-08 07:53:39,038 INFO L78 Accepts]: Start accepts. Automaton has 30755 states and 36008 transitions. Word has length 104 [2019-09-08 07:53:39,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:39,038 INFO L475 AbstractCegarLoop]: Abstraction has 30755 states and 36008 transitions. [2019-09-08 07:53:39,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 07:53:39,038 INFO L276 IsEmpty]: Start isEmpty. Operand 30755 states and 36008 transitions. [2019-09-08 07:53:39,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2019-09-08 07:53:39,040 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:39,040 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:39,040 INFO L418 AbstractCegarLoop]: === Iteration 22 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:39,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:39,040 INFO L82 PathProgramCache]: Analyzing trace with hash -639583658, now seen corresponding path program 1 times [2019-09-08 07:53:39,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:39,041 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:39,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:39,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:39,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:39,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:39,234 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 07:53:39,234 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:39,234 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) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:53:39,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:39,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:39,350 INFO L256 TraceCheckSpWp]: Trace formula consists of 634 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:53:39,353 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:53:39,505 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2019-09-08 07:53:39,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:53:39,515 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 21 [2019-09-08 07:53:39,515 INFO L454 AbstractCegarLoop]: Interpolant automaton has 21 states [2019-09-08 07:53:39,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2019-09-08 07:53:39,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=361, Unknown=0, NotChecked=0, Total=420 [2019-09-08 07:53:39,516 INFO L87 Difference]: Start difference. First operand 30755 states and 36008 transitions. Second operand 21 states. [2019-09-08 07:53:42,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:53:42,292 INFO L93 Difference]: Finished difference Result 39659 states and 46575 transitions. [2019-09-08 07:53:42,292 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 07:53:42,293 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 106 [2019-09-08 07:53:42,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:53:42,329 INFO L225 Difference]: With dead ends: 39659 [2019-09-08 07:53:42,329 INFO L226 Difference]: Without dead ends: 13497 [2019-09-08 07:53:42,352 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 143 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=354, Invalid=1128, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 07:53:42,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13497 states. [2019-09-08 07:53:43,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13497 to 13048. [2019-09-08 07:53:43,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13048 states. [2019-09-08 07:53:43,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13048 states to 13048 states and 15117 transitions. [2019-09-08 07:53:43,589 INFO L78 Accepts]: Start accepts. Automaton has 13048 states and 15117 transitions. Word has length 106 [2019-09-08 07:53:43,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:43,590 INFO L475 AbstractCegarLoop]: Abstraction has 13048 states and 15117 transitions. [2019-09-08 07:53:43,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 21 states. [2019-09-08 07:53:43,590 INFO L276 IsEmpty]: Start isEmpty. Operand 13048 states and 15117 transitions. [2019-09-08 07:53:43,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2019-09-08 07:53:43,596 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:43,596 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:43,596 INFO L418 AbstractCegarLoop]: === Iteration 23 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:43,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:43,597 INFO L82 PathProgramCache]: Analyzing trace with hash -1277718845, now seen corresponding path program 1 times [2019-09-08 07:53:43,597 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:43,597 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:43,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:43,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:43,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:43,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:44,094 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 31 proven. 81 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2019-09-08 07:53:44,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:44,095 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 07:53:44,106 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:44,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:44,238 INFO L256 TraceCheckSpWp]: Trace formula consists of 939 conjuncts, 34 conjunts are in the unsatisfiable core [2019-09-08 07:53:44,243 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:53:44,556 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:53:44,778 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:53:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 62 proven. 133 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:53:45,194 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:53:45,195 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 18] total 40 [2019-09-08 07:53:45,195 INFO L454 AbstractCegarLoop]: Interpolant automaton has 40 states [2019-09-08 07:53:45,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2019-09-08 07:53:45,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=1431, Unknown=0, NotChecked=0, Total=1560 [2019-09-08 07:53:45,196 INFO L87 Difference]: Start difference. First operand 13048 states and 15117 transitions. Second operand 40 states. [2019-09-08 07:53:45,580 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 07:53:46,003 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:53:46,275 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:53:46,942 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 07:53:47,272 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:53:47,689 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 07:53:47,965 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 07:53:48,693 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:53:49,181 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 07:53:49,413 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 07:53:49,555 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:53:50,170 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:53:50,601 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:53:51,079 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 07:53:51,289 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:53:51,687 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:53:51,869 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:53:52,752 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-08 07:53:53,064 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 07:53:53,238 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-08 07:53:53,423 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:53:53,661 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 07:53:53,942 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 07:53:54,273 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 07:53:54,616 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 07:53:54,837 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:53:55,358 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 07:53:55,663 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 07:53:56,056 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 07:53:57,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:53:57,618 INFO L93 Difference]: Finished difference Result 21595 states and 25127 transitions. [2019-09-08 07:53:57,619 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 07:53:57,619 INFO L78 Accepts]: Start accepts. Automaton has 40 states. Word has length 182 [2019-09-08 07:53:57,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:53:57,643 INFO L225 Difference]: With dead ends: 21595 [2019-09-08 07:53:57,643 INFO L226 Difference]: Without dead ends: 13214 [2019-09-08 07:53:57,651 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 257 GetRequests, 183 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 996 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=930, Invalid=4620, Unknown=0, NotChecked=0, Total=5550 [2019-09-08 07:53:57,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13214 states. [2019-09-08 07:53:59,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13214 to 12898. [2019-09-08 07:53:59,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12898 states. [2019-09-08 07:53:59,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12898 states to 12898 states and 14872 transitions. [2019-09-08 07:53:59,134 INFO L78 Accepts]: Start accepts. Automaton has 12898 states and 14872 transitions. Word has length 182 [2019-09-08 07:53:59,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:53:59,135 INFO L475 AbstractCegarLoop]: Abstraction has 12898 states and 14872 transitions. [2019-09-08 07:53:59,135 INFO L476 AbstractCegarLoop]: Interpolant automaton has 40 states. [2019-09-08 07:53:59,135 INFO L276 IsEmpty]: Start isEmpty. Operand 12898 states and 14872 transitions. [2019-09-08 07:53:59,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-08 07:53:59,142 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:53:59,142 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:53:59,142 INFO L418 AbstractCegarLoop]: === Iteration 24 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:53:59,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:53:59,143 INFO L82 PathProgramCache]: Analyzing trace with hash -2137478804, now seen corresponding path program 1 times [2019-09-08 07:53:59,143 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:53:59,143 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:53:59,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:59,144 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:59,144 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:53:59,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:59,726 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 36 proven. 67 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2019-09-08 07:53:59,726 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:53:59,727 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 07:53:59,738 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:53:59,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:53:59,861 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 29 conjunts are in the unsatisfiable core [2019-09-08 07:53:59,866 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:54:00,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:54:00,715 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 37 proven. 154 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:54:00,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:54:00,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 18] total 43 [2019-09-08 07:54:00,822 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-09-08 07:54:00,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-09-08 07:54:00,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=1676, Unknown=0, NotChecked=0, Total=1806 [2019-09-08 07:54:00,822 INFO L87 Difference]: Start difference. First operand 12898 states and 14872 transitions. Second operand 43 states. [2019-09-08 07:54:02,065 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-08 07:54:02,226 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 07:54:02,608 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 07:54:02,852 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-08 07:54:03,222 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2019-09-08 07:54:03,440 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 58 [2019-09-08 07:54:03,780 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-08 07:54:03,951 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-08 07:54:04,498 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 07:54:04,693 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 07:54:04,871 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 07:54:05,145 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 07:54:05,364 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 07:54:05,647 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 07:54:05,851 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 07:54:06,058 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 07:54:06,304 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 07:54:06,622 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 07:54:06,850 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 62 [2019-09-08 07:54:07,121 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 07:54:07,328 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 07:54:07,593 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-08 07:54:07,786 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 07:54:07,978 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 07:54:08,185 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:54:08,411 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:54:08,597 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 07:54:08,791 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 07:54:08,976 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 07:54:09,198 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 66 [2019-09-08 07:54:09,403 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:54:09,592 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 07:54:09,818 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-08 07:54:10,024 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-08 07:54:16,691 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:54:17,159 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-09-08 07:54:17,359 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 07:54:17,688 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 07:54:18,180 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-08 07:54:18,415 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:18,592 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 07:54:18,819 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 07:54:19,215 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 07:54:19,490 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:19,716 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 07:54:19,987 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:20,214 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 07:54:20,524 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 07:54:20,979 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:21,321 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:21,588 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-08 07:54:22,058 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:22,476 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2019-09-08 07:54:22,704 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 07:54:23,038 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-08 07:54:23,402 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 07:54:23,645 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-08 07:54:23,836 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 07:54:24,025 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 07:54:24,280 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 07:54:24,497 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-08 07:54:24,741 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 07:54:25,076 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 07:54:25,364 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 07:54:25,644 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 07:54:25,887 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:54:26,096 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 07:54:26,318 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 07:54:26,526 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2019-09-08 07:54:26,737 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 07:54:27,072 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:54:27,434 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-08 07:54:27,769 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 07:54:27,975 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2019-09-08 07:54:28,864 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:54:29,208 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-08 07:54:29,385 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 07:54:30,172 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:54:30,366 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 61 [2019-09-08 07:54:31,423 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-08 07:54:31,590 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 07:54:31,745 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-08 07:54:31,934 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 07:54:32,111 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-08 07:54:32,336 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:54:32,527 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:54:33,537 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-08 07:54:33,715 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 07:54:33,879 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 07:54:37,082 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-08 07:54:37,360 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-08 07:54:37,602 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:54:37,944 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 07:54:38,151 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-08 07:54:38,338 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 07:54:38,591 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:54:39,029 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:54:39,392 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-08 07:54:39,616 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2019-09-08 07:54:39,804 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:54:40,006 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:54:40,240 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:54:40,799 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 69 [2019-09-08 07:54:41,245 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 07:54:41,423 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 07:54:41,642 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 07:54:41,861 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2019-09-08 07:54:42,057 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 07:54:42,286 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 07:54:42,555 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:54:43,235 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:54:43,574 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 70 [2019-09-08 07:54:44,148 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:44,988 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 62 [2019-09-08 07:54:45,202 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:54:45,383 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 07:54:45,729 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 07:54:46,145 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:46,570 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:46,938 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 60 [2019-09-08 07:54:47,168 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 07:54:47,944 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 67 [2019-09-08 07:54:48,623 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 07:54:48,920 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:54:49,696 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-08 07:54:49,908 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-08 07:54:50,127 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-08 07:54:50,470 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 68 [2019-09-08 07:54:50,906 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:54:51,368 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 65 [2019-09-08 07:54:51,618 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2019-09-08 07:54:51,824 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 07:54:52,138 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 07:54:52,643 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 07:54:56,684 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 63 [2019-09-08 07:54:57,440 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:54:57,711 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:54:58,104 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:55:03,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:55:03,072 INFO L93 Difference]: Finished difference Result 32213 states and 37376 transitions. [2019-09-08 07:55:03,073 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 238 states. [2019-09-08 07:55:03,073 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 183 [2019-09-08 07:55:03,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:55:03,114 INFO L225 Difference]: With dead ends: 32213 [2019-09-08 07:55:03,114 INFO L226 Difference]: Without dead ends: 22338 [2019-09-08 07:55:03,130 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 560 GetRequests, 283 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28955 ImplicationChecksByTransitivity, 38.1s TimeCoverageRelationStatistics Valid=8843, Invalid=68719, Unknown=0, NotChecked=0, Total=77562 [2019-09-08 07:55:03,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22338 states. [2019-09-08 07:55:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22338 to 20581. [2019-09-08 07:55:06,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20581 states. [2019-09-08 07:55:06,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20581 states to 20581 states and 23874 transitions. [2019-09-08 07:55:06,201 INFO L78 Accepts]: Start accepts. Automaton has 20581 states and 23874 transitions. Word has length 183 [2019-09-08 07:55:06,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:55:06,201 INFO L475 AbstractCegarLoop]: Abstraction has 20581 states and 23874 transitions. [2019-09-08 07:55:06,201 INFO L476 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-09-08 07:55:06,202 INFO L276 IsEmpty]: Start isEmpty. Operand 20581 states and 23874 transitions. [2019-09-08 07:55:06,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-08 07:55:06,209 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:55:06,209 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:55:06,209 INFO L418 AbstractCegarLoop]: === Iteration 25 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:55:06,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:55:06,209 INFO L82 PathProgramCache]: Analyzing trace with hash -49857492, now seen corresponding path program 1 times [2019-09-08 07:55:06,210 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:55:06,210 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:55:06,210 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:55:06,211 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:55:06,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:55:06,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:55:06,875 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 39 proven. 89 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 07:55:06,875 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:55:06,875 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 07:55:06,887 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:55:07,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:55:07,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 34 conjunts are in the unsatisfiable core [2019-09-08 07:55:07,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:55:07,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:55:07,802 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:55:08,453 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 78 proven. 113 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:55:08,466 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:55:08,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 18] total 49 [2019-09-08 07:55:08,468 INFO L454 AbstractCegarLoop]: Interpolant automaton has 49 states [2019-09-08 07:55:08,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2019-09-08 07:55:08,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=2213, Unknown=0, NotChecked=0, Total=2352 [2019-09-08 07:55:08,468 INFO L87 Difference]: Start difference. First operand 20581 states and 23874 transitions. Second operand 49 states. [2019-09-08 07:55:08,771 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 07:55:09,107 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 07:55:09,480 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 07:55:10,923 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 89 [2019-09-08 07:55:11,414 WARN L188 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-08 07:55:12,191 WARN L188 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2019-09-08 07:55:12,570 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2019-09-08 07:55:12,911 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 79 [2019-09-08 07:55:13,218 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 78 [2019-09-08 07:55:13,755 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-08 07:55:14,382 WARN L188 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 80 [2019-09-08 07:55:14,651 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-08 07:55:15,114 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 72 [2019-09-08 07:55:15,582 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 80 [2019-09-08 07:55:15,925 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 86 [2019-09-08 07:55:16,337 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 69 [2019-09-08 07:55:16,956 WARN L188 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-08 07:55:17,347 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 82 [2019-09-08 07:55:18,201 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-08 07:55:18,505 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-08 07:55:18,961 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-08 07:55:19,490 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 82 [2019-09-08 07:55:19,903 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 81 [2019-09-08 07:55:20,349 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 83 [2019-09-08 07:55:20,969 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 83 [2019-09-08 07:55:21,379 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-08 07:55:21,872 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 84 [2019-09-08 07:55:22,459 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-08 07:55:22,851 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-08 07:55:23,276 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 07:55:23,868 WARN L188 SmtUtils]: Spent 496.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-08 07:55:24,421 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 82 [2019-09-08 07:55:24,968 WARN L188 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-08 07:55:25,322 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 85 [2019-09-08 07:55:25,722 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 85 [2019-09-08 07:55:26,414 WARN L188 SmtUtils]: Spent 587.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-08 07:55:27,111 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 79 [2019-09-08 07:55:27,595 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 80 [2019-09-08 07:55:28,119 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-08 07:55:28,526 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 07:55:28,977 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2019-09-08 07:55:29,431 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:55:30,004 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2019-09-08 07:55:30,569 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 92 [2019-09-08 07:55:30,839 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-08 07:55:31,129 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 70 [2019-09-08 07:55:31,421 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2019-09-08 07:55:32,133 WARN L188 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2019-09-08 07:55:32,802 WARN L188 SmtUtils]: Spent 581.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 89 [2019-09-08 07:55:33,232 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-08 07:55:33,551 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-08 07:55:33,891 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2019-09-08 07:55:34,344 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 84 [2019-09-08 07:55:35,470 WARN L188 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-08 07:55:35,947 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-08 07:55:37,214 WARN L188 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:55:39,746 WARN L188 SmtUtils]: Spent 539.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2019-09-08 07:55:40,319 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 95 [2019-09-08 07:55:40,702 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:55:41,313 WARN L188 SmtUtils]: Spent 560.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2019-09-08 07:55:41,606 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-08 07:55:41,992 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:55:42,330 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 93 [2019-09-08 07:55:42,682 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2019-09-08 07:55:42,938 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:55:43,359 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 74 [2019-09-08 07:55:43,639 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 81 [2019-09-08 07:55:44,194 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-08 07:55:44,436 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:55:44,988 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 76 [2019-09-08 07:55:45,277 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 74 [2019-09-08 07:55:45,695 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:55:46,183 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-08 07:55:46,627 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 75 [2019-09-08 07:55:46,987 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:55:47,264 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-08 07:55:47,528 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:55:47,915 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-08 07:55:48,193 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 73 [2019-09-08 07:55:48,471 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:55:49,011 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 07:55:49,427 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-08 07:55:49,904 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 07:55:50,123 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 72 [2019-09-08 07:55:50,406 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-08 07:55:50,686 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-08 07:55:51,181 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 73 [2019-09-08 07:55:51,450 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 79 [2019-09-08 07:55:52,010 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:55:52,436 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 07:55:52,820 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 07:55:53,162 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 07:55:53,528 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-08 07:55:53,873 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 07:55:54,184 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2019-09-08 07:55:54,542 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2019-09-08 07:55:54,800 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 07:55:55,045 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 70 [2019-09-08 07:55:55,259 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 68 [2019-09-08 07:55:55,539 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2019-09-08 07:55:56,010 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 69 [2019-09-08 07:55:56,358 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 07:55:56,834 WARN L188 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 07:55:57,207 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 07:55:57,608 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 07:55:57,977 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 07:55:59,115 WARN L188 SmtUtils]: Spent 619.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-08 07:55:59,382 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:55:59,780 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-08 07:56:00,105 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-08 07:56:00,530 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-09-08 07:56:00,798 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:56:01,360 WARN L188 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-08 07:56:01,649 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 80 [2019-09-08 07:56:04,148 WARN L188 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 92 DAG size of output: 81 [2019-09-08 07:56:04,652 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 79 [2019-09-08 07:56:05,162 WARN L188 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-08 07:56:05,532 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-08 07:56:05,966 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:56:06,395 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-08 07:56:06,830 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 07:56:07,443 WARN L188 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 07:56:07,884 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 07:56:08,367 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 59 [2019-09-08 07:56:08,631 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 67 [2019-09-08 07:56:08,950 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 07:56:09,212 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 65 [2019-09-08 07:56:09,564 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 07:56:10,073 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 82 [2019-09-08 07:56:10,419 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 80 [2019-09-08 07:56:10,791 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 07:56:11,194 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 07:56:11,825 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-08 07:56:12,332 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-08 07:56:12,706 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:56:12,995 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-08 07:56:13,328 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 07:56:13,890 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 07:56:14,230 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-08 07:56:14,533 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 07:56:14,909 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2019-09-08 07:56:15,588 WARN L188 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2019-09-08 07:56:16,006 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2019-09-08 07:56:16,326 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-08 07:56:16,722 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-08 07:56:17,025 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 82 [2019-09-08 07:56:17,312 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 78 [2019-09-08 07:56:17,597 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-08 07:56:18,123 WARN L188 SmtUtils]: Spent 443.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-08 07:56:18,483 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-08 07:56:18,874 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 80 [2019-09-08 07:56:19,141 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2019-09-08 07:56:19,461 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-08 07:56:19,914 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2019-09-08 07:56:20,234 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 81 [2019-09-08 07:56:20,706 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 77 [2019-09-08 07:56:23,225 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2019-09-08 07:56:23,827 WARN L188 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-08 07:56:24,368 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2019-09-08 07:56:24,783 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:56:25,221 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 83 [2019-09-08 07:56:25,664 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 89 [2019-09-08 07:56:25,964 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-08 07:56:26,374 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 84 [2019-09-08 07:56:26,701 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-08 07:56:27,369 WARN L188 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2019-09-08 07:56:28,025 WARN L188 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-09-08 07:56:28,528 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 87 [2019-09-08 07:56:28,988 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-08 07:56:29,301 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-08 07:56:29,694 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:56:30,396 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-08 07:56:30,994 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 86 [2019-09-08 07:56:31,519 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-08 07:56:32,090 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2019-09-08 07:56:32,739 WARN L188 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 83 [2019-09-08 07:56:33,329 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 85 [2019-09-08 07:56:33,755 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 81 [2019-09-08 07:56:34,275 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 83 [2019-09-08 07:56:34,686 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 84 [2019-09-08 07:56:35,178 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 80 [2019-09-08 07:56:35,810 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 83 [2019-09-08 07:56:36,244 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 84 [2019-09-08 07:56:36,542 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 82 [2019-09-08 07:56:36,934 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-08 07:56:37,245 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-08 07:56:37,687 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 87 [2019-09-08 07:56:38,067 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 85 [2019-09-08 07:56:38,434 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2019-09-08 07:56:38,970 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-08 07:56:39,321 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-08 07:56:39,753 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-08 07:56:40,191 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-08 07:56:40,718 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 86 [2019-09-08 07:56:41,394 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-08 07:56:41,905 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 07:56:42,267 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 77 [2019-09-08 07:56:42,705 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 85 [2019-09-08 07:56:43,243 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-08 07:56:43,633 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-08 07:56:43,957 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-08 07:56:44,378 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 07:56:44,693 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 84 [2019-09-08 07:56:45,013 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2019-09-08 07:56:45,540 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-08 07:56:45,883 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2019-09-08 07:56:46,393 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 84 [2019-09-08 07:56:47,003 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2019-09-08 07:56:47,484 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 86 [2019-09-08 07:56:48,244 WARN L188 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-08 07:56:48,888 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 87 [2019-09-08 07:56:49,681 WARN L188 SmtUtils]: Spent 472.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2019-09-08 07:56:50,421 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 86 [2019-09-08 07:56:50,818 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 07:56:51,224 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 89 [2019-09-08 07:56:51,597 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 88 [2019-09-08 07:56:51,992 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 88 [2019-09-08 07:56:52,410 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-08 07:56:52,989 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 07:56:53,345 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 86 [2019-09-08 07:57:00,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:57:00,274 INFO L93 Difference]: Finished difference Result 47951 states and 56205 transitions. [2019-09-08 07:57:00,274 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 231 states. [2019-09-08 07:57:00,274 INFO L78 Accepts]: Start accepts. Automaton has 49 states. Word has length 183 [2019-09-08 07:57:00,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:57:00,340 INFO L225 Difference]: With dead ends: 47951 [2019-09-08 07:57:00,340 INFO L226 Difference]: Without dead ends: 31318 [2019-09-08 07:57:00,365 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 515 GetRequests, 227 SyntacticMatches, 12 SemanticMatches, 276 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29810 ImplicationChecksByTransitivity, 90.4s TimeCoverageRelationStatistics Valid=6942, Invalid=70064, Unknown=0, NotChecked=0, Total=77006 [2019-09-08 07:57:00,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31318 states. [2019-09-08 07:57:06,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31318 to 29744. [2019-09-08 07:57:06,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29744 states. [2019-09-08 07:57:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29744 states to 29744 states and 34682 transitions. [2019-09-08 07:57:06,139 INFO L78 Accepts]: Start accepts. Automaton has 29744 states and 34682 transitions. Word has length 183 [2019-09-08 07:57:06,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:57:06,139 INFO L475 AbstractCegarLoop]: Abstraction has 29744 states and 34682 transitions. [2019-09-08 07:57:06,139 INFO L476 AbstractCegarLoop]: Interpolant automaton has 49 states. [2019-09-08 07:57:06,139 INFO L276 IsEmpty]: Start isEmpty. Operand 29744 states and 34682 transitions. [2019-09-08 07:57:06,147 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2019-09-08 07:57:06,147 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:57:06,148 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:57:06,148 INFO L418 AbstractCegarLoop]: === Iteration 26 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:57:06,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:57:06,148 INFO L82 PathProgramCache]: Analyzing trace with hash 905037740, now seen corresponding path program 1 times [2019-09-08 07:57:06,148 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:57:06,148 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:57:06,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:06,149 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:57:06,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:06,252 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 56 proven. 10 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2019-09-08 07:57:06,253 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:57:06,253 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) [2019-09-08 07:57:06,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:57:06,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:06,382 INFO L256 TraceCheckSpWp]: Trace formula consists of 940 conjuncts, 13 conjunts are in the unsatisfiable core [2019-09-08 07:57:06,387 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:57:06,532 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 112 proven. 54 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2019-09-08 07:57:06,542 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:57:06,543 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 9] total 14 [2019-09-08 07:57:06,543 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 07:57:06,544 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 07:57:06,544 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2019-09-08 07:57:06,544 INFO L87 Difference]: Start difference. First operand 29744 states and 34682 transitions. Second operand 14 states. [2019-09-08 07:57:11,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:57:11,320 INFO L93 Difference]: Finished difference Result 40859 states and 47470 transitions. [2019-09-08 07:57:11,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2019-09-08 07:57:11,320 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 183 [2019-09-08 07:57:11,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:57:11,345 INFO L225 Difference]: With dead ends: 40859 [2019-09-08 07:57:11,345 INFO L226 Difference]: Without dead ends: 12095 [2019-09-08 07:57:11,373 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 191 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=542, Invalid=1908, Unknown=0, NotChecked=0, Total=2450 [2019-09-08 07:57:11,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12095 states. [2019-09-08 07:57:13,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12095 to 10855. [2019-09-08 07:57:13,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10855 states. [2019-09-08 07:57:13,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10855 states to 10855 states and 12033 transitions. [2019-09-08 07:57:13,592 INFO L78 Accepts]: Start accepts. Automaton has 10855 states and 12033 transitions. Word has length 183 [2019-09-08 07:57:13,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:57:13,592 INFO L475 AbstractCegarLoop]: Abstraction has 10855 states and 12033 transitions. [2019-09-08 07:57:13,592 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 07:57:13,592 INFO L276 IsEmpty]: Start isEmpty. Operand 10855 states and 12033 transitions. [2019-09-08 07:57:13,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2019-09-08 07:57:13,597 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:57:13,597 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:57:13,598 INFO L418 AbstractCegarLoop]: === Iteration 27 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:57:13,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:57:13,598 INFO L82 PathProgramCache]: Analyzing trace with hash -397165529, now seen corresponding path program 1 times [2019-09-08 07:57:13,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:57:13,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:57:13,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:13,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:57:13,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:13,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:13,789 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 47 proven. 38 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2019-09-08 07:57:13,789 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:57:13,789 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:57:13,801 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:57:13,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:13,913 INFO L256 TraceCheckSpWp]: Trace formula consists of 936 conjuncts, 12 conjunts are in the unsatisfiable core [2019-09-08 07:57:13,918 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:57:14,051 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 160 trivial. 0 not checked. [2019-09-08 07:57:14,060 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 07:57:14,060 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [14] total 20 [2019-09-08 07:57:14,061 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 07:57:14,061 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 07:57:14,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=319, Unknown=0, NotChecked=0, Total=380 [2019-09-08 07:57:14,062 INFO L87 Difference]: Start difference. First operand 10855 states and 12033 transitions. Second operand 20 states. [2019-09-08 07:57:16,396 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:57:16,396 INFO L93 Difference]: Finished difference Result 11319 states and 12572 transitions. [2019-09-08 07:57:16,397 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-08 07:57:16,397 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 184 [2019-09-08 07:57:16,397 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:57:16,411 INFO L225 Difference]: With dead ends: 11319 [2019-09-08 07:57:16,411 INFO L226 Difference]: Without dead ends: 8021 [2019-09-08 07:57:16,417 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 218 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=280, Invalid=842, Unknown=0, NotChecked=0, Total=1122 [2019-09-08 07:57:16,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8021 states. [2019-09-08 07:57:17,908 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8021 to 7836. [2019-09-08 07:57:17,908 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7836 states. [2019-09-08 07:57:17,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7836 states to 7836 states and 8771 transitions. [2019-09-08 07:57:17,919 INFO L78 Accepts]: Start accepts. Automaton has 7836 states and 8771 transitions. Word has length 184 [2019-09-08 07:57:17,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:57:17,919 INFO L475 AbstractCegarLoop]: Abstraction has 7836 states and 8771 transitions. [2019-09-08 07:57:17,919 INFO L476 AbstractCegarLoop]: Interpolant automaton has 20 states. [2019-09-08 07:57:17,919 INFO L276 IsEmpty]: Start isEmpty. Operand 7836 states and 8771 transitions. [2019-09-08 07:57:17,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2019-09-08 07:57:17,922 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:57:17,922 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:57:17,922 INFO L418 AbstractCegarLoop]: === Iteration 28 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:57:17,922 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:57:17,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1807668383, now seen corresponding path program 1 times [2019-09-08 07:57:17,923 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:57:17,923 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:57:17,923 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:17,924 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:57:17,924 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:57:17,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:18,752 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 39 proven. 91 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2019-09-08 07:57:18,752 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:57:18,752 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:57:18,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:57:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:57:18,898 INFO L256 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 80 conjunts are in the unsatisfiable core [2019-09-08 07:57:18,904 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:57:20,158 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:57:21,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:57:23,181 INFO L134 CoverageAnalysis]: Checked inductivity of 193 backedges. 69 proven. 124 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:57:23,188 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:57:23,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [35, 43] total 76 [2019-09-08 07:57:23,189 INFO L454 AbstractCegarLoop]: Interpolant automaton has 76 states [2019-09-08 07:57:23,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2019-09-08 07:57:23,190 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=5400, Unknown=0, NotChecked=0, Total=5700 [2019-09-08 07:57:23,190 INFO L87 Difference]: Start difference. First operand 7836 states and 8771 transitions. Second operand 76 states. [2019-09-08 07:57:23,428 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 07:57:23,717 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 07:57:26,107 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 45 [2019-09-08 07:57:26,532 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 47 [2019-09-08 07:57:26,828 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 49 [2019-09-08 07:57:27,120 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 07:57:27,387 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 44 [2019-09-08 07:57:27,804 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2019-09-08 07:57:28,134 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-08 07:57:28,421 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 07:57:28,864 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 53 [2019-09-08 07:57:29,695 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 07:57:30,065 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 47 [2019-09-08 07:57:30,335 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 49 [2019-09-08 07:57:30,769 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2019-09-08 07:57:31,031 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-08 07:57:31,420 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-08 07:57:31,883 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 45 [2019-09-08 07:57:32,741 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 45 [2019-09-08 07:57:39,063 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-08 07:57:39,469 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2019-09-08 07:57:40,276 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 50 [2019-09-08 07:57:40,860 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 52 [2019-09-08 07:57:42,243 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 54 [2019-09-08 07:57:42,676 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-08 07:57:42,886 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2019-09-08 07:57:43,368 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 07:57:43,595 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 55 [2019-09-08 07:57:43,856 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-08 07:57:44,181 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-08 07:57:44,843 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-08 07:57:45,540 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2019-09-08 07:57:46,054 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 60 [2019-09-08 07:57:46,285 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-08 07:57:46,517 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 57 [2019-09-08 07:57:46,891 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 53 [2019-09-08 07:57:47,148 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 62 [2019-09-08 07:57:47,475 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 51 [2019-09-08 07:57:47,770 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 48 [2019-09-08 07:57:47,969 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 40 [2019-09-08 07:57:48,349 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2019-09-08 07:57:48,912 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2019-09-08 07:57:49,104 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-08 07:57:51,002 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 07:57:51,630 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-08 07:57:52,539 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2019-09-08 07:57:53,129 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 07:57:54,176 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2019-09-08 07:57:54,954 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-08 07:57:55,244 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-08 07:57:55,608 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 38 DAG size of output: 35 [2019-09-08 07:57:56,047 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2019-09-08 07:57:57,235 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2019-09-08 07:57:58,375 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-08 07:58:01,329 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-08 07:58:01,807 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-08 07:58:03,674 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 45 [2019-09-08 07:58:09,624 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 46 [2019-09-08 07:58:10,859 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 47 [2019-09-08 07:58:11,453 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 07:58:11,969 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 54 [2019-09-08 07:58:14,053 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 07:58:14,233 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 07:58:14,659 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2019-09-08 07:58:15,644 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 40 [2019-09-08 07:58:16,587 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 52 [2019-09-08 07:58:19,537 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-08 07:58:24,628 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 27 DAG size of output: 24 [2019-09-08 07:58:31,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:58:31,928 INFO L93 Difference]: Finished difference Result 20805 states and 23590 transitions. [2019-09-08 07:58:31,928 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 303 states. [2019-09-08 07:58:31,928 INFO L78 Accepts]: Start accepts. Automaton has 76 states. Word has length 185 [2019-09-08 07:58:31,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:58:31,950 INFO L225 Difference]: With dead ends: 20805 [2019-09-08 07:58:31,951 INFO L226 Difference]: Without dead ends: 16088 [2019-09-08 07:58:31,961 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 608 GetRequests, 233 SyntacticMatches, 2 SemanticMatches, 373 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51026 ImplicationChecksByTransitivity, 41.8s TimeCoverageRelationStatistics Valid=9186, Invalid=131064, Unknown=0, NotChecked=0, Total=140250 [2019-09-08 07:58:31,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16088 states. [2019-09-08 07:58:34,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16088 to 13608. [2019-09-08 07:58:34,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13608 states. [2019-09-08 07:58:34,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13608 states to 13608 states and 15386 transitions. [2019-09-08 07:58:34,617 INFO L78 Accepts]: Start accepts. Automaton has 13608 states and 15386 transitions. Word has length 185 [2019-09-08 07:58:34,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:58:34,617 INFO L475 AbstractCegarLoop]: Abstraction has 13608 states and 15386 transitions. [2019-09-08 07:58:34,618 INFO L476 AbstractCegarLoop]: Interpolant automaton has 76 states. [2019-09-08 07:58:34,618 INFO L276 IsEmpty]: Start isEmpty. Operand 13608 states and 15386 transitions. [2019-09-08 07:58:34,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-08 07:58:34,622 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:58:34,622 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:58:34,622 INFO L418 AbstractCegarLoop]: === Iteration 29 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:58:34,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:58:34,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1288651096, now seen corresponding path program 1 times [2019-09-08 07:58:34,623 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:58:34,623 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:58:34,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:58:34,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:58:34,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:58:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:58:35,738 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 34 proven. 79 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2019-09-08 07:58:35,738 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:58:35,738 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:58:35,751 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:58:35,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:58:35,875 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 07:58:35,880 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:58:36,206 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 24 proven. 123 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2019-09-08 07:58:36,211 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:58:36,211 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 7] total 39 [2019-09-08 07:58:36,211 INFO L454 AbstractCegarLoop]: Interpolant automaton has 39 states [2019-09-08 07:58:36,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2019-09-08 07:58:36,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=1396, Unknown=0, NotChecked=0, Total=1482 [2019-09-08 07:58:36,212 INFO L87 Difference]: Start difference. First operand 13608 states and 15386 transitions. Second operand 39 states. [2019-09-08 07:58:36,562 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 81 [2019-09-08 07:58:36,839 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 71 [2019-09-08 07:58:37,159 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 85 [2019-09-08 07:58:38,799 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 54 [2019-09-08 07:58:39,201 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 07:58:39,436 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 07:58:39,667 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2019-09-08 07:58:39,883 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 47 [2019-09-08 07:58:40,135 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-08 07:58:40,424 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-08 07:58:40,701 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2019-09-08 07:58:40,974 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2019-09-08 07:58:41,341 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 07:58:47,778 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 07:58:48,211 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 59 [2019-09-08 07:58:48,696 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 07:58:49,678 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-08 07:58:50,012 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-08 07:58:50,285 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 52 [2019-09-08 07:58:50,580 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-08 07:58:51,367 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 07:58:51,632 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 07:58:52,006 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 73 [2019-09-08 07:58:52,315 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2019-09-08 07:58:52,674 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-08 07:58:53,732 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2019-09-08 07:59:01,905 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 07:59:02,235 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 51 [2019-09-08 07:59:02,486 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 61 [2019-09-08 07:59:02,879 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2019-09-08 07:59:03,560 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 62 [2019-09-08 07:59:03,791 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2019-09-08 07:59:04,162 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-08 07:59:04,458 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2019-09-08 07:59:05,031 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 54 [2019-09-08 07:59:05,564 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 07:59:05,798 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 07:59:06,221 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-08 07:59:06,536 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 75 [2019-09-08 07:59:06,828 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 63 [2019-09-08 07:59:07,006 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 51 [2019-09-08 07:59:07,224 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2019-09-08 07:59:12,824 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2019-09-08 07:59:13,594 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 41 [2019-09-08 07:59:13,923 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 51 [2019-09-08 07:59:14,547 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 07:59:15,057 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-08 07:59:15,420 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 56 [2019-09-08 07:59:15,789 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 43 [2019-09-08 07:59:16,089 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 61 [2019-09-08 07:59:16,439 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2019-09-08 07:59:16,740 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2019-09-08 07:59:17,034 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 52 [2019-09-08 07:59:17,388 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 07:59:19,567 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 07:59:19,568 INFO L93 Difference]: Finished difference Result 28743 states and 32544 transitions. [2019-09-08 07:59:19,568 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2019-09-08 07:59:19,568 INFO L78 Accepts]: Start accepts. Automaton has 39 states. Word has length 186 [2019-09-08 07:59:19,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 07:59:19,598 INFO L225 Difference]: With dead ends: 28743 [2019-09-08 07:59:19,598 INFO L226 Difference]: Without dead ends: 15607 [2019-09-08 07:59:19,620 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 488 GetRequests, 244 SyntacticMatches, 2 SemanticMatches, 242 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21044 ImplicationChecksByTransitivity, 24.3s TimeCoverageRelationStatistics Valid=5423, Invalid=53869, Unknown=0, NotChecked=0, Total=59292 [2019-09-08 07:59:19,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15607 states. [2019-09-08 07:59:22,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15607 to 15139. [2019-09-08 07:59:22,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15139 states. [2019-09-08 07:59:22,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15139 states to 15139 states and 16973 transitions. [2019-09-08 07:59:22,838 INFO L78 Accepts]: Start accepts. Automaton has 15139 states and 16973 transitions. Word has length 186 [2019-09-08 07:59:22,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 07:59:22,838 INFO L475 AbstractCegarLoop]: Abstraction has 15139 states and 16973 transitions. [2019-09-08 07:59:22,838 INFO L476 AbstractCegarLoop]: Interpolant automaton has 39 states. [2019-09-08 07:59:22,838 INFO L276 IsEmpty]: Start isEmpty. Operand 15139 states and 16973 transitions. [2019-09-08 07:59:22,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2019-09-08 07:59:22,841 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 07:59:22,841 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 07:59:22,841 INFO L418 AbstractCegarLoop]: === Iteration 30 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 07:59:22,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 07:59:22,841 INFO L82 PathProgramCache]: Analyzing trace with hash 1168373526, now seen corresponding path program 1 times [2019-09-08 07:59:22,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 07:59:22,842 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 07:59:22,842 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:59:22,843 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:59:22,843 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 07:59:22,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:59:24,025 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 25 proven. 103 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2019-09-08 07:59:24,025 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 07:59:24,025 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 07:59:24,038 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 07:59:24,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 07:59:24,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 945 conjuncts, 60 conjunts are in the unsatisfiable core [2019-09-08 07:59:24,206 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 07:59:26,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 07:59:27,429 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 57 proven. 142 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 07:59:27,434 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 07:59:27,434 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 34] total 75 [2019-09-08 07:59:27,434 INFO L454 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-09-08 07:59:27,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-09-08 07:59:27,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=5244, Unknown=0, NotChecked=0, Total=5550 [2019-09-08 07:59:27,436 INFO L87 Difference]: Start difference. First operand 15139 states and 16973 transitions. Second operand 75 states. [2019-09-08 07:59:27,715 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 07:59:27,923 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2019-09-08 07:59:28,189 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 62 [2019-09-08 07:59:31,506 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 51 [2019-09-08 07:59:40,655 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 47 [2019-09-08 07:59:41,791 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 07:59:42,716 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 50 [2019-09-08 07:59:44,710 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 07:59:47,799 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 07:59:56,956 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-09-08 07:59:58,831 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2019-09-08 08:00:12,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:00:12,637 INFO L93 Difference]: Finished difference Result 23540 states and 26456 transitions. [2019-09-08 08:00:12,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 223 states. [2019-09-08 08:00:12,638 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 186 [2019-09-08 08:00:12,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:00:12,687 INFO L225 Difference]: With dead ends: 23540 [2019-09-08 08:00:12,687 INFO L226 Difference]: Without dead ends: 22395 [2019-09-08 08:00:12,701 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 532 GetRequests, 239 SyntacticMatches, 1 SemanticMatches, 292 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30721 ImplicationChecksByTransitivity, 23.8s TimeCoverageRelationStatistics Valid=6034, Invalid=80108, Unknown=0, NotChecked=0, Total=86142 [2019-09-08 08:00:12,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22395 states. [2019-09-08 08:00:17,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22395 to 22002. [2019-09-08 08:00:17,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22002 states. [2019-09-08 08:00:17,300 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22002 states to 22002 states and 24713 transitions. [2019-09-08 08:00:17,301 INFO L78 Accepts]: Start accepts. Automaton has 22002 states and 24713 transitions. Word has length 186 [2019-09-08 08:00:17,301 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:00:17,302 INFO L475 AbstractCegarLoop]: Abstraction has 22002 states and 24713 transitions. [2019-09-08 08:00:17,302 INFO L476 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-09-08 08:00:17,302 INFO L276 IsEmpty]: Start isEmpty. Operand 22002 states and 24713 transitions. [2019-09-08 08:00:17,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-08 08:00:17,304 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:00:17,304 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:00:17,304 INFO L418 AbstractCegarLoop]: === Iteration 31 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:00:17,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:00:17,305 INFO L82 PathProgramCache]: Analyzing trace with hash 840460784, now seen corresponding path program 1 times [2019-09-08 08:00:17,305 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:00:17,305 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:00:17,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:00:17,306 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:00:17,306 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:00:17,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:00:17,808 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 33 proven. 71 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2019-09-08 08:00:17,809 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:00:17,809 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:00:17,820 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:00:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:00:17,961 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 51 conjunts are in the unsatisfiable core [2019-09-08 08:00:17,970 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:00:20,030 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 64 proven. 135 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:00:20,044 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 08:00:20,044 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 29] total 52 [2019-09-08 08:00:20,045 INFO L454 AbstractCegarLoop]: Interpolant automaton has 52 states [2019-09-08 08:00:20,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2019-09-08 08:00:20,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=2466, Unknown=0, NotChecked=0, Total=2652 [2019-09-08 08:00:20,047 INFO L87 Difference]: Start difference. First operand 22002 states and 24713 transitions. Second operand 52 states. [2019-09-08 08:00:46,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:00:46,010 INFO L93 Difference]: Finished difference Result 29104 states and 32767 transitions. [2019-09-08 08:00:46,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 124 states. [2019-09-08 08:00:46,010 INFO L78 Accepts]: Start accepts. Automaton has 52 states. Word has length 187 [2019-09-08 08:00:46,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:00:46,053 INFO L225 Difference]: With dead ends: 29104 [2019-09-08 08:00:46,054 INFO L226 Difference]: Without dead ends: 23091 [2019-09-08 08:00:46,067 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 385 GetRequests, 213 SyntacticMatches, 2 SemanticMatches, 170 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9506 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2567, Invalid=26844, Unknown=1, NotChecked=0, Total=29412 [2019-09-08 08:00:46,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23091 states. [2019-09-08 08:00:50,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23091 to 22698. [2019-09-08 08:00:50,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22698 states. [2019-09-08 08:00:50,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22698 states to 22698 states and 25497 transitions. [2019-09-08 08:00:50,756 INFO L78 Accepts]: Start accepts. Automaton has 22698 states and 25497 transitions. Word has length 187 [2019-09-08 08:00:50,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:00:50,757 INFO L475 AbstractCegarLoop]: Abstraction has 22698 states and 25497 transitions. [2019-09-08 08:00:50,757 INFO L476 AbstractCegarLoop]: Interpolant automaton has 52 states. [2019-09-08 08:00:50,757 INFO L276 IsEmpty]: Start isEmpty. Operand 22698 states and 25497 transitions. [2019-09-08 08:00:50,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2019-09-08 08:00:50,759 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:00:50,759 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:00:50,760 INFO L418 AbstractCegarLoop]: === Iteration 32 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:00:50,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:00:50,760 INFO L82 PathProgramCache]: Analyzing trace with hash -2120598288, now seen corresponding path program 1 times [2019-09-08 08:00:50,760 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:00:50,760 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:00:50,761 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:00:50,761 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:00:50,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:00:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:00:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 37 proven. 65 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2019-09-08 08:00:51,268 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:00:51,268 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:00:51,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:00:51,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:00:51,406 INFO L256 TraceCheckSpWp]: Trace formula consists of 944 conjuncts, 25 conjunts are in the unsatisfiable core [2019-09-08 08:00:51,411 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:00:51,507 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:00:51,720 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:00:51,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:00:51,952 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:00:51,953 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:00:52,334 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 71 proven. 128 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:00:52,343 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 08:00:52,347 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 19] total 43 [2019-09-08 08:00:52,348 INFO L454 AbstractCegarLoop]: Interpolant automaton has 43 states [2019-09-08 08:00:52,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2019-09-08 08:00:52,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=1679, Unknown=0, NotChecked=0, Total=1806 [2019-09-08 08:00:52,348 INFO L87 Difference]: Start difference. First operand 22698 states and 25497 transitions. Second operand 43 states. [2019-09-08 08:00:52,515 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 43 [2019-09-08 08:00:52,834 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-08 08:00:58,812 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 34 [2019-09-08 08:01:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:12,677 INFO L93 Difference]: Finished difference Result 52145 states and 59132 transitions. [2019-09-08 08:01:12,677 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 76 states. [2019-09-08 08:01:12,677 INFO L78 Accepts]: Start accepts. Automaton has 43 states. Word has length 187 [2019-09-08 08:01:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:12,757 INFO L225 Difference]: With dead ends: 52145 [2019-09-08 08:01:12,757 INFO L226 Difference]: Without dead ends: 33582 [2019-09-08 08:01:12,780 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 307 GetRequests, 188 SyntacticMatches, 4 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3809 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=1643, Invalid=11929, Unknown=0, NotChecked=0, Total=13572 [2019-09-08 08:01:12,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33582 states. [2019-09-08 08:01:18,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33582 to 28381. [2019-09-08 08:01:18,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28381 states. [2019-09-08 08:01:18,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28381 states to 28381 states and 31840 transitions. [2019-09-08 08:01:18,937 INFO L78 Accepts]: Start accepts. Automaton has 28381 states and 31840 transitions. Word has length 187 [2019-09-08 08:01:18,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:01:18,937 INFO L475 AbstractCegarLoop]: Abstraction has 28381 states and 31840 transitions. [2019-09-08 08:01:18,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 43 states. [2019-09-08 08:01:18,937 INFO L276 IsEmpty]: Start isEmpty. Operand 28381 states and 31840 transitions. [2019-09-08 08:01:18,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 189 [2019-09-08 08:01:18,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:01:18,940 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:01:18,940 INFO L418 AbstractCegarLoop]: === Iteration 33 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:01:18,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:01:18,940 INFO L82 PathProgramCache]: Analyzing trace with hash 584655158, now seen corresponding path program 1 times [2019-09-08 08:01:18,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:01:18,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:01:18,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:18,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:18,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:01:18,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:19,861 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 46 proven. 85 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2019-09-08 08:01:19,862 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 08:01:19,862 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 08:01:19,873 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:01:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 08:01:20,006 INFO L256 TraceCheckSpWp]: Trace formula consists of 943 conjuncts, 94 conjunts are in the unsatisfiable core [2019-09-08 08:01:20,011 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 08:01:23,225 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 08:01:24,209 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 80 proven. 120 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 08:01:24,217 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 08:01:24,217 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 43] total 75 [2019-09-08 08:01:24,218 INFO L454 AbstractCegarLoop]: Interpolant automaton has 75 states [2019-09-08 08:01:24,218 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2019-09-08 08:01:24,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=5246, Unknown=0, NotChecked=0, Total=5550 [2019-09-08 08:01:24,219 INFO L87 Difference]: Start difference. First operand 28381 states and 31840 transitions. Second operand 75 states. [2019-09-08 08:01:24,481 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 08:01:24,669 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2019-09-08 08:01:25,015 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-08 08:01:27,663 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 08:01:27,870 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 53 [2019-09-08 08:01:37,050 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 42 [2019-09-08 08:01:38,221 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 44 [2019-09-08 08:01:38,541 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 45 [2019-09-08 08:01:39,415 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 49 [2019-09-08 08:01:40,797 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 41 [2019-09-08 08:01:41,401 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 42 [2019-09-08 08:01:41,584 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 42 [2019-09-08 08:01:41,880 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 08:01:42,423 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 31 [2019-09-08 08:01:42,638 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 45 [2019-09-08 08:01:59,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 08:01:59,853 INFO L93 Difference]: Finished difference Result 43558 states and 49223 transitions. [2019-09-08 08:01:59,854 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2019-09-08 08:01:59,854 INFO L78 Accepts]: Start accepts. Automaton has 75 states. Word has length 188 [2019-09-08 08:01:59,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 08:01:59,918 INFO L225 Difference]: With dead ends: 43558 [2019-09-08 08:01:59,918 INFO L226 Difference]: Without dead ends: 32266 [2019-09-08 08:01:59,938 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 412 GetRequests, 189 SyntacticMatches, 1 SemanticMatches, 222 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16699 ImplicationChecksByTransitivity, 18.1s TimeCoverageRelationStatistics Valid=3751, Invalid=46201, Unknown=0, NotChecked=0, Total=49952 [2019-09-08 08:01:59,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32266 states. [2019-09-08 08:02:06,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32266 to 29452. [2019-09-08 08:02:06,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29452 states. [2019-09-08 08:02:06,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29452 states to 29452 states and 33034 transitions. [2019-09-08 08:02:06,417 INFO L78 Accepts]: Start accepts. Automaton has 29452 states and 33034 transitions. Word has length 188 [2019-09-08 08:02:06,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 08:02:06,418 INFO L475 AbstractCegarLoop]: Abstraction has 29452 states and 33034 transitions. [2019-09-08 08:02:06,418 INFO L476 AbstractCegarLoop]: Interpolant automaton has 75 states. [2019-09-08 08:02:06,418 INFO L276 IsEmpty]: Start isEmpty. Operand 29452 states and 33034 transitions. [2019-09-08 08:02:06,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 267 [2019-09-08 08:02:06,425 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 08:02:06,425 INFO L399 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 08:02:06,426 INFO L418 AbstractCegarLoop]: === Iteration 34 === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 08:02:06,426 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 08:02:06,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1836073387, now seen corresponding path program 2 times [2019-09-08 08:02:06,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 08:02:06,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 08:02:06,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:06,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 08:02:06,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 08:02:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat