java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 12:00:25,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 12:00:25,946 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 12:00:25,966 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 12:00:25,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 12:00:25,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 12:00:25,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 12:00:25,980 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 12:00:25,982 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 12:00:25,983 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 12:00:25,984 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 12:00:25,985 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 12:00:25,985 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 12:00:25,986 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 12:00:25,987 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 12:00:25,988 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 12:00:25,989 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 12:00:25,991 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 12:00:25,993 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 12:00:25,996 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 12:00:25,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 12:00:26,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 12:00:26,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 12:00:26,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 12:00:26,005 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 12:00:26,010 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 12:00:26,011 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 12:00:26,012 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 12:00:26,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 12:00:26,017 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 12:00:26,018 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 12:00:26,019 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 12:00:26,019 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 12:00:26,019 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 12:00:26,020 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 12:00:26,021 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 12:00:26,022 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 12:00:26,051 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 12:00:26,051 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 12:00:26,053 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 12:00:26,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 12:00:26,054 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 12:00:26,054 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 12:00:26,054 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 12:00:26,054 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 12:00:26,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 12:00:26,055 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 12:00:26,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 12:00:26,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 12:00:26,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 12:00:26,057 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 12:00:26,057 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 12:00:26,057 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 12:00:26,057 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 12:00:26,058 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 12:00:26,058 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 12:00:26,058 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 12:00:26,058 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 12:00:26,059 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 12:00:26,059 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 12:00:26,059 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 12:00:26,059 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 12:00:26,060 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 12:00:26,060 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 12:00:26,060 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 12:00:26,060 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 12:00:26,115 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 12:00:26,133 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 12:00:26,137 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 12:00:26,138 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 12:00:26,139 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 12:00:26,140 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-08 12:00:26,216 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f986329ef/37d878ab6af54c2dab05a0ea1353c7f2/FLAGf3e6bb812 [2019-09-08 12:00:26,798 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 12:00:26,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-08 12:00:26,815 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f986329ef/37d878ab6af54c2dab05a0ea1353c7f2/FLAGf3e6bb812 [2019-09-08 12:00:27,124 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f986329ef/37d878ab6af54c2dab05a0ea1353c7f2 [2019-09-08 12:00:27,137 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 12:00:27,139 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 12:00:27,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 12:00:27,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 12:00:27,142 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 12:00:27,143 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,145 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6cceac13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27, skipping insertion in model container [2019-09-08 12:00:27,145 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,152 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 12:00:27,211 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 12:00:27,633 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 12:00:27,646 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 12:00:27,737 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 12:00:27,762 INFO L192 MainTranslator]: Completed translation [2019-09-08 12:00:27,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27 WrapperNode [2019-09-08 12:00:27,763 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 12:00:27,764 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 12:00:27,764 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 12:00:27,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 12:00:27,775 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,775 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,786 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,787 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,804 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,816 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,820 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (1/1) ... [2019-09-08 12:00:27,827 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 12:00:27,828 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 12:00:27,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 12:00:27,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 12:00:27,833 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (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 12:00:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 12:00:27,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 12:00:27,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 12:00:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 12:00:27,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 12:00:27,891 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 12:00:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 12:00:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 12:00:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 12:00:27,892 INFO L130 BoogieDeclarations]: Found specification of procedure node5 [2019-09-08 12:00:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 12:00:27,893 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 12:00:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 12:00:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 12:00:27,894 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 12:00:28,695 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 12:00:28,696 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 12:00:28,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:00:28 BoogieIcfgContainer [2019-09-08 12:00:28,698 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 12:00:28,699 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 12:00:28,699 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 12:00:28,703 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 12:00:28,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 12:00:27" (1/3) ... [2019-09-08 12:00:28,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad9c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:00:28, skipping insertion in model container [2019-09-08 12:00:28,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 12:00:27" (2/3) ... [2019-09-08 12:00:28,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ad9c529 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 12:00:28, skipping insertion in model container [2019-09-08 12:00:28,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 12:00:28" (3/3) ... [2019-09-08 12:00:28,707 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.5.1.ufo.BOUNDED-10.pals.c.v+nlh-reducer.c [2019-09-08 12:00:28,720 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 12:00:28,729 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 12:00:28,748 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 12:00:28,783 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 12:00:28,784 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 12:00:28,784 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 12:00:28,784 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 12:00:28,784 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 12:00:28,785 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 12:00:28,785 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 12:00:28,785 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 12:00:28,786 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 12:00:28,811 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states. [2019-09-08 12:00:28,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 12:00:28,822 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:28,823 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:28,826 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:28,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:28,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1001395215, now seen corresponding path program 1 times [2019-09-08 12:00:28,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:28,836 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:28,905 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:28,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:28,906 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:29,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:29,347 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 12:00:29,350 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:29,350 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:00:29,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:00:29,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:00:29,370 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:00:29,373 INFO L87 Difference]: Start difference. First operand 155 states. Second operand 3 states. [2019-09-08 12:00:29,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:29,508 INFO L93 Difference]: Finished difference Result 302 states and 496 transitions. [2019-09-08 12:00:29,508 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:00:29,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-08 12:00:29,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:29,525 INFO L225 Difference]: With dead ends: 302 [2019-09-08 12:00:29,526 INFO L226 Difference]: Without dead ends: 229 [2019-09-08 12:00:29,530 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 12:00:29,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 229 states. [2019-09-08 12:00:29,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 229 to 227. [2019-09-08 12:00:29,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 227 states. [2019-09-08 12:00:29,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 227 states to 227 states and 325 transitions. [2019-09-08 12:00:29,596 INFO L78 Accepts]: Start accepts. Automaton has 227 states and 325 transitions. Word has length 80 [2019-09-08 12:00:29,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:29,598 INFO L475 AbstractCegarLoop]: Abstraction has 227 states and 325 transitions. [2019-09-08 12:00:29,598 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:00:29,598 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states and 325 transitions. [2019-09-08 12:00:29,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-08 12:00:29,601 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:29,602 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:29,602 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:29,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:29,602 INFO L82 PathProgramCache]: Analyzing trace with hash 1695070945, now seen corresponding path program 1 times [2019-09-08 12:00:29,603 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:29,603 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:29,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:29,605 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:29,605 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:29,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:29,807 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 12:00:29,808 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:29,808 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:29,810 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:29,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:29,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:29,811 INFO L87 Difference]: Start difference. First operand 227 states and 325 transitions. Second operand 5 states. [2019-09-08 12:00:30,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:30,201 INFO L93 Difference]: Finished difference Result 565 states and 847 transitions. [2019-09-08 12:00:30,202 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:30,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 82 [2019-09-08 12:00:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:30,211 INFO L225 Difference]: With dead ends: 565 [2019-09-08 12:00:30,212 INFO L226 Difference]: Without dead ends: 380 [2019-09-08 12:00:30,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:30,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2019-09-08 12:00:30,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 378. [2019-09-08 12:00:30,282 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-08 12:00:30,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 561 transitions. [2019-09-08 12:00:30,288 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 561 transitions. Word has length 82 [2019-09-08 12:00:30,288 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:30,289 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 561 transitions. [2019-09-08 12:00:30,289 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:30,289 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 561 transitions. [2019-09-08 12:00:30,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 12:00:30,295 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:30,295 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:30,295 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:30,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:30,296 INFO L82 PathProgramCache]: Analyzing trace with hash -1498664087, now seen corresponding path program 1 times [2019-09-08 12:00:30,296 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:30,296 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:30,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:30,299 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:30,299 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:30,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:30,484 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 12:00:30,485 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:30,485 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:30,486 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:30,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:30,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:30,487 INFO L87 Difference]: Start difference. First operand 378 states and 561 transitions. Second operand 5 states. [2019-09-08 12:00:30,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:30,709 INFO L93 Difference]: Finished difference Result 710 states and 1075 transitions. [2019-09-08 12:00:30,710 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:30,710 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-09-08 12:00:30,711 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:30,713 INFO L225 Difference]: With dead ends: 710 [2019-09-08 12:00:30,713 INFO L226 Difference]: Without dead ends: 378 [2019-09-08 12:00:30,716 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:30,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-08 12:00:30,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-08 12:00:30,738 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-08 12:00:30,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 556 transitions. [2019-09-08 12:00:30,741 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 556 transitions. Word has length 83 [2019-09-08 12:00:30,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:30,741 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 556 transitions. [2019-09-08 12:00:30,742 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:30,742 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 556 transitions. [2019-09-08 12:00:30,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-09-08 12:00:30,743 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:30,744 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:30,744 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:30,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:30,744 INFO L82 PathProgramCache]: Analyzing trace with hash 565537234, now seen corresponding path program 1 times [2019-09-08 12:00:30,745 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:30,745 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:30,746 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:30,747 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:30,747 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:30,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:30,918 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 12:00:30,918 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:30,918 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:30,920 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:30,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:30,921 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:30,921 INFO L87 Difference]: Start difference. First operand 378 states and 556 transitions. Second operand 5 states. [2019-09-08 12:00:31,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:31,110 INFO L93 Difference]: Finished difference Result 702 states and 1056 transitions. [2019-09-08 12:00:31,111 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:31,111 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 84 [2019-09-08 12:00:31,112 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:31,114 INFO L225 Difference]: With dead ends: 702 [2019-09-08 12:00:31,114 INFO L226 Difference]: Without dead ends: 378 [2019-09-08 12:00:31,115 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:31,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-08 12:00:31,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-08 12:00:31,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-08 12:00:31,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 551 transitions. [2019-09-08 12:00:31,140 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 551 transitions. Word has length 84 [2019-09-08 12:00:31,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:31,141 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 551 transitions. [2019-09-08 12:00:31,141 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:31,141 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 551 transitions. [2019-09-08 12:00:31,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-08 12:00:31,143 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:31,143 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:31,143 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:31,143 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:31,144 INFO L82 PathProgramCache]: Analyzing trace with hash 219817577, now seen corresponding path program 1 times [2019-09-08 12:00:31,144 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:31,144 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:31,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:31,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:31,241 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 12:00:31,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:31,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:31,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:31,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:31,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:31,243 INFO L87 Difference]: Start difference. First operand 378 states and 551 transitions. Second operand 5 states. [2019-09-08 12:00:31,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:31,434 INFO L93 Difference]: Finished difference Result 698 states and 1042 transitions. [2019-09-08 12:00:31,435 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:31,435 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 85 [2019-09-08 12:00:31,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:31,440 INFO L225 Difference]: With dead ends: 698 [2019-09-08 12:00:31,440 INFO L226 Difference]: Without dead ends: 378 [2019-09-08 12:00:31,442 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:31,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-08 12:00:31,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-08 12:00:31,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-08 12:00:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 546 transitions. [2019-09-08 12:00:31,469 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 546 transitions. Word has length 85 [2019-09-08 12:00:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:31,471 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 546 transitions. [2019-09-08 12:00:31,471 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:31,471 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 546 transitions. [2019-09-08 12:00:31,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2019-09-08 12:00:31,474 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:31,474 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:31,475 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:31,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:31,476 INFO L82 PathProgramCache]: Analyzing trace with hash 693792033, now seen corresponding path program 1 times [2019-09-08 12:00:31,476 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:31,476 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:31,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,478 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:31,478 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:31,644 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 12:00:31,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:31,645 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:31,645 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:31,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:31,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:31,646 INFO L87 Difference]: Start difference. First operand 378 states and 546 transitions. Second operand 5 states. [2019-09-08 12:00:31,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:31,804 INFO L93 Difference]: Finished difference Result 706 states and 1041 transitions. [2019-09-08 12:00:31,805 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:31,805 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 86 [2019-09-08 12:00:31,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:31,808 INFO L225 Difference]: With dead ends: 706 [2019-09-08 12:00:31,808 INFO L226 Difference]: Without dead ends: 378 [2019-09-08 12:00:31,809 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:31,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 378 states. [2019-09-08 12:00:31,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 378 to 378. [2019-09-08 12:00:31,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 378 states. [2019-09-08 12:00:31,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 541 transitions. [2019-09-08 12:00:31,835 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 541 transitions. Word has length 86 [2019-09-08 12:00:31,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:31,837 INFO L475 AbstractCegarLoop]: Abstraction has 378 states and 541 transitions. [2019-09-08 12:00:31,837 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:31,837 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 541 transitions. [2019-09-08 12:00:31,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:31,838 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:31,838 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:31,838 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:31,839 INFO L82 PathProgramCache]: Analyzing trace with hash -320560505, now seen corresponding path program 1 times [2019-09-08 12:00:31,841 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:31,843 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:31,847 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:31,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:31,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:32,034 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 12:00:32,035 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:32,035 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 12:00:32,036 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 12:00:32,036 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 12:00:32,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:32,037 INFO L87 Difference]: Start difference. First operand 378 states and 541 transitions. Second operand 7 states. [2019-09-08 12:00:32,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:32,295 INFO L93 Difference]: Finished difference Result 1658 states and 2460 transitions. [2019-09-08 12:00:32,295 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 12:00:32,296 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-08 12:00:32,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:32,304 INFO L225 Difference]: With dead ends: 1658 [2019-09-08 12:00:32,305 INFO L226 Difference]: Without dead ends: 1428 [2019-09-08 12:00:32,306 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2019-09-08 12:00:32,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2019-09-08 12:00:32,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 491. [2019-09-08 12:00:32,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2019-09-08 12:00:32,396 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 712 transitions. [2019-09-08 12:00:32,397 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 712 transitions. Word has length 87 [2019-09-08 12:00:32,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:32,397 INFO L475 AbstractCegarLoop]: Abstraction has 491 states and 712 transitions. [2019-09-08 12:00:32,397 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 12:00:32,397 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 712 transitions. [2019-09-08 12:00:32,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:32,398 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:32,398 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:32,399 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:32,399 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:32,399 INFO L82 PathProgramCache]: Analyzing trace with hash -411004634, now seen corresponding path program 1 times [2019-09-08 12:00:32,399 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:32,399 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:32,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:32,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:32,401 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:32,541 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 12:00:32,541 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:32,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:32,542 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:32,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:32,542 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:32,543 INFO L87 Difference]: Start difference. First operand 491 states and 712 transitions. Second operand 5 states. [2019-09-08 12:00:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:32,705 INFO L93 Difference]: Finished difference Result 1121 states and 1658 transitions. [2019-09-08 12:00:32,705 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:32,705 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2019-09-08 12:00:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:32,711 INFO L225 Difference]: With dead ends: 1121 [2019-09-08 12:00:32,711 INFO L226 Difference]: Without dead ends: 891 [2019-09-08 12:00:32,713 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 12:00:32,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 891 states. [2019-09-08 12:00:32,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 891 to 761. [2019-09-08 12:00:32,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 761 states. [2019-09-08 12:00:32,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 761 states to 761 states and 1122 transitions. [2019-09-08 12:00:32,805 INFO L78 Accepts]: Start accepts. Automaton has 761 states and 1122 transitions. Word has length 87 [2019-09-08 12:00:32,805 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:32,805 INFO L475 AbstractCegarLoop]: Abstraction has 761 states and 1122 transitions. [2019-09-08 12:00:32,805 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:32,806 INFO L276 IsEmpty]: Start isEmpty. Operand 761 states and 1122 transitions. [2019-09-08 12:00:32,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:32,807 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:32,807 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:32,807 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:32,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:32,808 INFO L82 PathProgramCache]: Analyzing trace with hash -141069036, now seen corresponding path program 1 times [2019-09-08 12:00:32,808 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:32,809 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:32,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:32,810 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:32,810 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:32,873 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 12:00:32,873 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:32,873 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:00:32,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:00:32,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:00:32,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:00:32,874 INFO L87 Difference]: Start difference. First operand 761 states and 1122 transitions. Second operand 3 states. [2019-09-08 12:00:33,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:33,035 INFO L93 Difference]: Finished difference Result 1869 states and 2776 transitions. [2019-09-08 12:00:33,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:00:33,035 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2019-09-08 12:00:33,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:33,042 INFO L225 Difference]: With dead ends: 1869 [2019-09-08 12:00:33,042 INFO L226 Difference]: Without dead ends: 1285 [2019-09-08 12:00:33,045 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 12:00:33,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2019-09-08 12:00:33,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1283. [2019-09-08 12:00:33,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1283 states. [2019-09-08 12:00:33,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1283 states to 1283 states and 1877 transitions. [2019-09-08 12:00:33,203 INFO L78 Accepts]: Start accepts. Automaton has 1283 states and 1877 transitions. Word has length 87 [2019-09-08 12:00:33,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:33,204 INFO L475 AbstractCegarLoop]: Abstraction has 1283 states and 1877 transitions. [2019-09-08 12:00:33,204 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:00:33,204 INFO L276 IsEmpty]: Start isEmpty. Operand 1283 states and 1877 transitions. [2019-09-08 12:00:33,207 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:33,208 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:33,208 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:33,208 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:33,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:33,209 INFO L82 PathProgramCache]: Analyzing trace with hash 63922835, now seen corresponding path program 1 times [2019-09-08 12:00:33,209 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:33,209 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:33,211 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:33,212 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:33,212 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:33,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:33,282 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 12:00:33,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:33,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:00:33,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:00:33,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:00:33,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:00:33,284 INFO L87 Difference]: Start difference. First operand 1283 states and 1877 transitions. Second operand 3 states. [2019-09-08 12:00:33,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:33,517 INFO L93 Difference]: Finished difference Result 2613 states and 3843 transitions. [2019-09-08 12:00:33,517 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:00:33,518 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 87 [2019-09-08 12:00:33,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:33,526 INFO L225 Difference]: With dead ends: 2613 [2019-09-08 12:00:33,530 INFO L226 Difference]: Without dead ends: 1507 [2019-09-08 12:00:33,533 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 12:00:33,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1507 states. [2019-09-08 12:00:33,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1507 to 1505. [2019-09-08 12:00:33,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1505 states. [2019-09-08 12:00:33,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1505 states to 1505 states and 2197 transitions. [2019-09-08 12:00:33,713 INFO L78 Accepts]: Start accepts. Automaton has 1505 states and 2197 transitions. Word has length 87 [2019-09-08 12:00:33,713 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:33,713 INFO L475 AbstractCegarLoop]: Abstraction has 1505 states and 2197 transitions. [2019-09-08 12:00:33,713 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:00:33,713 INFO L276 IsEmpty]: Start isEmpty. Operand 1505 states and 2197 transitions. [2019-09-08 12:00:33,714 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:33,715 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:33,715 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:33,715 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:33,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:33,715 INFO L82 PathProgramCache]: Analyzing trace with hash 2048530461, now seen corresponding path program 1 times [2019-09-08 12:00:33,716 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:33,716 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:33,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:33,717 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:33,718 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:33,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:33,871 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 12:00:33,872 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:33,872 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 12:00:33,873 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 12:00:33,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 12:00:33,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:33,874 INFO L87 Difference]: Start difference. First operand 1505 states and 2197 transitions. Second operand 7 states. [2019-09-08 12:00:34,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:34,405 INFO L93 Difference]: Finished difference Result 5815 states and 8546 transitions. [2019-09-08 12:00:34,405 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 12:00:34,406 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-08 12:00:34,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:34,429 INFO L225 Difference]: With dead ends: 5815 [2019-09-08 12:00:34,430 INFO L226 Difference]: Without dead ends: 4933 [2019-09-08 12:00:34,433 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=39, Unknown=0, NotChecked=0, Total=72 [2019-09-08 12:00:34,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2019-09-08 12:00:34,647 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 2187. [2019-09-08 12:00:34,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2187 states. [2019-09-08 12:00:34,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2187 states to 2187 states and 3199 transitions. [2019-09-08 12:00:34,656 INFO L78 Accepts]: Start accepts. Automaton has 2187 states and 3199 transitions. Word has length 87 [2019-09-08 12:00:34,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:34,657 INFO L475 AbstractCegarLoop]: Abstraction has 2187 states and 3199 transitions. [2019-09-08 12:00:34,657 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 12:00:34,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2187 states and 3199 transitions. [2019-09-08 12:00:34,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:34,658 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:34,658 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:34,659 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:34,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:34,659 INFO L82 PathProgramCache]: Analyzing trace with hash -194393284, now seen corresponding path program 1 times [2019-09-08 12:00:34,659 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:34,659 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:34,660 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:34,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:34,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:34,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:34,754 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 12:00:34,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:34,755 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:00:34,755 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:00:34,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:00:34,756 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:00:34,756 INFO L87 Difference]: Start difference. First operand 2187 states and 3199 transitions. Second operand 5 states. [2019-09-08 12:00:35,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:35,163 INFO L93 Difference]: Finished difference Result 3637 states and 5332 transitions. [2019-09-08 12:00:35,163 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 12:00:35,163 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 87 [2019-09-08 12:00:35,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:35,179 INFO L225 Difference]: With dead ends: 3637 [2019-09-08 12:00:35,179 INFO L226 Difference]: Without dead ends: 2755 [2019-09-08 12:00:35,183 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 12:00:35,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2755 states. [2019-09-08 12:00:35,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2755 to 2431. [2019-09-08 12:00:35,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2431 states. [2019-09-08 12:00:35,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2431 states to 2431 states and 3561 transitions. [2019-09-08 12:00:35,404 INFO L78 Accepts]: Start accepts. Automaton has 2431 states and 3561 transitions. Word has length 87 [2019-09-08 12:00:35,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:35,405 INFO L475 AbstractCegarLoop]: Abstraction has 2431 states and 3561 transitions. [2019-09-08 12:00:35,405 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:00:35,405 INFO L276 IsEmpty]: Start isEmpty. Operand 2431 states and 3561 transitions. [2019-09-08 12:00:35,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2019-09-08 12:00:35,406 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:35,407 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:35,407 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:35,407 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:35,407 INFO L82 PathProgramCache]: Analyzing trace with hash 80594002, now seen corresponding path program 1 times [2019-09-08 12:00:35,408 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:35,408 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:35,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:35,409 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:35,409 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:35,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:35,527 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 12:00:35,528 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:35,528 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 12:00:35,528 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 12:00:35,529 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 12:00:35,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:00:35,529 INFO L87 Difference]: Start difference. First operand 2431 states and 3561 transitions. Second operand 7 states. [2019-09-08 12:00:36,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:36,092 INFO L93 Difference]: Finished difference Result 6982 states and 10271 transitions. [2019-09-08 12:00:36,092 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 12:00:36,092 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 87 [2019-09-08 12:00:36,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:36,118 INFO L225 Difference]: With dead ends: 6982 [2019-09-08 12:00:36,118 INFO L226 Difference]: Without dead ends: 5878 [2019-09-08 12:00:36,122 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2019-09-08 12:00:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2019-09-08 12:00:36,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 2893. [2019-09-08 12:00:36,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:36,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4242 transitions. [2019-09-08 12:00:36,504 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4242 transitions. Word has length 87 [2019-09-08 12:00:36,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:36,504 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4242 transitions. [2019-09-08 12:00:36,504 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 12:00:36,505 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4242 transitions. [2019-09-08 12:00:36,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2019-09-08 12:00:36,507 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:36,507 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:36,507 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:36,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:36,508 INFO L82 PathProgramCache]: Analyzing trace with hash 116389539, now seen corresponding path program 1 times [2019-09-08 12:00:36,508 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:36,508 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:36,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:36,510 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:36,510 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:36,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:36,777 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 12:00:36,778 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:36,779 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 12:00:36,779 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 12:00:36,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 12:00:36,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 12:00:36,780 INFO L87 Difference]: Start difference. First operand 2893 states and 4242 transitions. Second operand 9 states. [2019-09-08 12:00:37,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:37,965 INFO L93 Difference]: Finished difference Result 8302 states and 12205 transitions. [2019-09-08 12:00:37,965 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-09-08 12:00:37,966 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 88 [2019-09-08 12:00:37,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:37,991 INFO L225 Difference]: With dead ends: 8302 [2019-09-08 12:00:37,991 INFO L226 Difference]: Without dead ends: 5570 [2019-09-08 12:00:37,999 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2019-09-08 12:00:38,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5570 states. [2019-09-08 12:00:38,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5570 to 2893. [2019-09-08 12:00:38,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:38,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4241 transitions. [2019-09-08 12:00:38,478 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4241 transitions. Word has length 88 [2019-09-08 12:00:38,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:38,478 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4241 transitions. [2019-09-08 12:00:38,479 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 12:00:38,479 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4241 transitions. [2019-09-08 12:00:38,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-08 12:00:38,480 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:38,481 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:38,481 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:38,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:38,481 INFO L82 PathProgramCache]: Analyzing trace with hash 2104622850, now seen corresponding path program 1 times [2019-09-08 12:00:38,481 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:38,481 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:38,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:38,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:38,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:38,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:38,737 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 12:00:38,738 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:38,738 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 12:00:38,738 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 12:00:38,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 12:00:38,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 12:00:38,739 INFO L87 Difference]: Start difference. First operand 2893 states and 4241 transitions. Second operand 10 states. [2019-09-08 12:00:40,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:40,289 INFO L93 Difference]: Finished difference Result 8508 states and 12473 transitions. [2019-09-08 12:00:40,290 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 12:00:40,290 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-09-08 12:00:40,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:40,308 INFO L225 Difference]: With dead ends: 8508 [2019-09-08 12:00:40,308 INFO L226 Difference]: Without dead ends: 5756 [2019-09-08 12:00:40,315 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-08 12:00:40,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5756 states. [2019-09-08 12:00:40,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5756 to 2893. [2019-09-08 12:00:40,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:40,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4235 transitions. [2019-09-08 12:00:40,696 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4235 transitions. Word has length 89 [2019-09-08 12:00:40,696 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:40,696 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4235 transitions. [2019-09-08 12:00:40,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 12:00:40,696 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4235 transitions. [2019-09-08 12:00:40,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-08 12:00:40,698 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:40,698 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:40,698 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:40,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:40,699 INFO L82 PathProgramCache]: Analyzing trace with hash -2064177225, now seen corresponding path program 1 times [2019-09-08 12:00:40,699 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:40,699 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:40,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:40,700 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:40,700 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:40,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:40,913 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 12:00:40,914 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:40,914 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 12:00:40,914 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 12:00:40,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 12:00:40,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-09-08 12:00:40,915 INFO L87 Difference]: Start difference. First operand 2893 states and 4235 transitions. Second operand 10 states. [2019-09-08 12:00:42,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:42,487 INFO L93 Difference]: Finished difference Result 7891 states and 11550 transitions. [2019-09-08 12:00:42,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 12:00:42,487 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 89 [2019-09-08 12:00:42,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:42,499 INFO L225 Difference]: With dead ends: 7891 [2019-09-08 12:00:42,499 INFO L226 Difference]: Without dead ends: 5124 [2019-09-08 12:00:42,506 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2019-09-08 12:00:42,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5124 states. [2019-09-08 12:00:42,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5124 to 2893. [2019-09-08 12:00:42,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:42,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4232 transitions. [2019-09-08 12:00:42,927 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4232 transitions. Word has length 89 [2019-09-08 12:00:42,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:42,928 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4232 transitions. [2019-09-08 12:00:42,928 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 12:00:42,928 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4232 transitions. [2019-09-08 12:00:42,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2019-09-08 12:00:42,929 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:42,930 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:42,930 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:42,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:42,930 INFO L82 PathProgramCache]: Analyzing trace with hash 2120525072, now seen corresponding path program 1 times [2019-09-08 12:00:42,930 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:42,931 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:42,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:42,932 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:42,932 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:42,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:43,172 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 12:00:43,172 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:43,172 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 12:00:43,173 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 12:00:43,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 12:00:43,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 12:00:43,174 INFO L87 Difference]: Start difference. First operand 2893 states and 4232 transitions. Second operand 10 states. [2019-09-08 12:00:44,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:44,673 INFO L93 Difference]: Finished difference Result 8463 states and 12392 transitions. [2019-09-08 12:00:44,674 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 12:00:44,674 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 90 [2019-09-08 12:00:44,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:44,686 INFO L225 Difference]: With dead ends: 8463 [2019-09-08 12:00:44,687 INFO L226 Difference]: Without dead ends: 5741 [2019-09-08 12:00:44,692 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-08 12:00:44,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5741 states. [2019-09-08 12:00:45,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5741 to 2893. [2019-09-08 12:00:45,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:45,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4223 transitions. [2019-09-08 12:00:45,143 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4223 transitions. Word has length 90 [2019-09-08 12:00:45,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:45,144 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4223 transitions. [2019-09-08 12:00:45,144 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 12:00:45,144 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4223 transitions. [2019-09-08 12:00:45,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2019-09-08 12:00:45,146 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:45,146 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:45,146 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:45,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:45,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1590865908, now seen corresponding path program 1 times [2019-09-08 12:00:45,147 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:45,147 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:45,148 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:45,148 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:45,149 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:45,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:45,355 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 12:00:45,356 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:45,356 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 12:00:45,357 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 12:00:45,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 12:00:45,357 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-09-08 12:00:45,357 INFO L87 Difference]: Start difference. First operand 2893 states and 4223 transitions. Second operand 10 states. [2019-09-08 12:00:46,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:00:46,996 INFO L93 Difference]: Finished difference Result 8388 states and 12263 transitions. [2019-09-08 12:00:46,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 12:00:46,996 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 91 [2019-09-08 12:00:46,997 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:00:47,011 INFO L225 Difference]: With dead ends: 8388 [2019-09-08 12:00:47,011 INFO L226 Difference]: Without dead ends: 5711 [2019-09-08 12:00:47,018 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2019-09-08 12:00:47,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5711 states. [2019-09-08 12:00:47,531 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5711 to 2893. [2019-09-08 12:00:47,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2893 states. [2019-09-08 12:00:47,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2893 states to 2893 states and 4212 transitions. [2019-09-08 12:00:47,538 INFO L78 Accepts]: Start accepts. Automaton has 2893 states and 4212 transitions. Word has length 91 [2019-09-08 12:00:47,538 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:00:47,539 INFO L475 AbstractCegarLoop]: Abstraction has 2893 states and 4212 transitions. [2019-09-08 12:00:47,539 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 12:00:47,539 INFO L276 IsEmpty]: Start isEmpty. Operand 2893 states and 4212 transitions. [2019-09-08 12:00:47,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-08 12:00:47,541 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:00:47,541 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:00:47,541 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:00:47,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:00:47,541 INFO L82 PathProgramCache]: Analyzing trace with hash 142408710, now seen corresponding path program 1 times [2019-09-08 12:00:47,542 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:00:47,542 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:00:47,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:47,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:00:47,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:00:47,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:00:48,749 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-08 12:00:49,014 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2019-09-08 12:00:49,316 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 12:00:49,600 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-08 12:00:50,455 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 12:00:50,455 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:00:50,455 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [31] imperfect sequences [] total 31 [2019-09-08 12:00:50,456 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-09-08 12:00:50,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-09-08 12:00:50,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=845, Unknown=0, NotChecked=0, Total=930 [2019-09-08 12:00:50,457 INFO L87 Difference]: Start difference. First operand 2893 states and 4212 transitions. Second operand 31 states. [2019-09-08 12:00:50,610 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 39 [2019-09-08 12:00:51,597 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 42 [2019-09-08 12:00:52,000 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 12:00:52,319 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2019-09-08 12:00:52,756 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-08 12:00:53,232 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 103 [2019-09-08 12:00:53,835 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 121 [2019-09-08 12:00:54,532 WARN L188 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 131 [2019-09-08 12:00:55,424 WARN L188 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 158 [2019-09-08 12:00:56,328 WARN L188 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 171 [2019-09-08 12:00:56,635 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 75 [2019-09-08 12:00:56,854 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2019-09-08 12:00:57,301 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2019-09-08 12:00:57,748 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2019-09-08 12:00:58,158 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2019-09-08 12:00:58,567 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 62 [2019-09-08 12:00:59,201 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-08 12:00:59,674 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2019-09-08 12:01:00,384 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-08 12:01:00,896 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 55 [2019-09-08 12:01:06,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:06,637 INFO L93 Difference]: Finished difference Result 11296 states and 16552 transitions. [2019-09-08 12:01:06,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-08 12:01:06,638 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 92 [2019-09-08 12:01:06,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:06,658 INFO L225 Difference]: With dead ends: 11296 [2019-09-08 12:01:06,658 INFO L226 Difference]: Without dead ends: 9742 [2019-09-08 12:01:06,665 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 673 ImplicationChecksByTransitivity, 10.6s TimeCoverageRelationStatistics Valid=770, Invalid=3390, Unknown=0, NotChecked=0, Total=4160 [2019-09-08 12:01:06,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9742 states. [2019-09-08 12:01:07,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9742 to 2928. [2019-09-08 12:01:07,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2928 states. [2019-09-08 12:01:07,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2928 states to 2928 states and 4253 transitions. [2019-09-08 12:01:07,240 INFO L78 Accepts]: Start accepts. Automaton has 2928 states and 4253 transitions. Word has length 92 [2019-09-08 12:01:07,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:07,240 INFO L475 AbstractCegarLoop]: Abstraction has 2928 states and 4253 transitions. [2019-09-08 12:01:07,240 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-09-08 12:01:07,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2928 states and 4253 transitions. [2019-09-08 12:01:07,242 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-08 12:01:07,242 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:07,242 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:07,242 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:07,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:07,243 INFO L82 PathProgramCache]: Analyzing trace with hash -1104384956, now seen corresponding path program 1 times [2019-09-08 12:01:07,243 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:07,243 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:07,244 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:07,245 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:07,245 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:07,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:07,730 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-09-08 12:01:08,290 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 12:01:08,290 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:08,290 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-08 12:01:08,291 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 12:01:08,291 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 12:01:08,291 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-08 12:01:08,292 INFO L87 Difference]: Start difference. First operand 2928 states and 4253 transitions. Second operand 19 states. [2019-09-08 12:01:08,909 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-08 12:01:09,111 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 12:01:09,512 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 84 [2019-09-08 12:01:09,829 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2019-09-08 12:01:09,996 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 12:01:10,329 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 12:01:10,621 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 12:01:10,808 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-08 12:01:11,069 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 42 [2019-09-08 12:01:14,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:14,132 INFO L93 Difference]: Finished difference Result 14625 states and 21454 transitions. [2019-09-08 12:01:14,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 12:01:14,138 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2019-09-08 12:01:14,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:14,164 INFO L225 Difference]: With dead ends: 14625 [2019-09-08 12:01:14,164 INFO L226 Difference]: Without dead ends: 13071 [2019-09-08 12:01:14,170 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 12:01:14,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13071 states. [2019-09-08 12:01:14,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13071 to 2925. [2019-09-08 12:01:14,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2019-09-08 12:01:14,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 4243 transitions. [2019-09-08 12:01:14,832 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 4243 transitions. Word has length 92 [2019-09-08 12:01:14,832 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:14,832 INFO L475 AbstractCegarLoop]: Abstraction has 2925 states and 4243 transitions. [2019-09-08 12:01:14,832 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 12:01:14,833 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 4243 transitions. [2019-09-08 12:01:14,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-08 12:01:14,834 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:14,834 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:14,834 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:14,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:14,835 INFO L82 PathProgramCache]: Analyzing trace with hash -305465437, now seen corresponding path program 1 times [2019-09-08 12:01:14,835 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:14,835 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:14,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:14,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:14,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:14,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:15,523 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 12:01:15,802 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 57 [2019-09-08 12:01:16,093 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-08 12:01:16,930 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 12:01:16,931 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:16,931 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [29] imperfect sequences [] total 29 [2019-09-08 12:01:16,931 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 12:01:16,931 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 12:01:16,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-09-08 12:01:16,932 INFO L87 Difference]: Start difference. First operand 2925 states and 4243 transitions. Second operand 29 states. [2019-09-08 12:01:18,094 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-08 12:01:18,487 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2019-09-08 12:01:18,751 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 70 [2019-09-08 12:01:19,138 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 85 [2019-09-08 12:01:19,539 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 93 [2019-09-08 12:01:20,043 WARN L188 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 110 [2019-09-08 12:01:20,597 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 117 [2019-09-08 12:01:21,254 WARN L188 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 130 [2019-09-08 12:01:21,496 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-08 12:01:21,753 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 76 [2019-09-08 12:01:21,996 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-08 12:01:22,334 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-08 12:01:22,697 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-08 12:01:23,078 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-08 12:01:23,348 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 64 [2019-09-08 12:01:23,950 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 12:01:24,273 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2019-09-08 12:01:30,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:30,146 INFO L93 Difference]: Finished difference Result 11304 states and 16545 transitions. [2019-09-08 12:01:30,147 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2019-09-08 12:01:30,147 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 92 [2019-09-08 12:01:30,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:30,163 INFO L225 Difference]: With dead ends: 11304 [2019-09-08 12:01:30,163 INFO L226 Difference]: Without dead ends: 9737 [2019-09-08 12:01:30,169 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 466 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=676, Invalid=2516, Unknown=0, NotChecked=0, Total=3192 [2019-09-08 12:01:30,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9737 states. [2019-09-08 12:01:30,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9737 to 2940. [2019-09-08 12:01:30,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2940 states. [2019-09-08 12:01:30,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2940 states to 2940 states and 4260 transitions. [2019-09-08 12:01:30,900 INFO L78 Accepts]: Start accepts. Automaton has 2940 states and 4260 transitions. Word has length 92 [2019-09-08 12:01:30,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:30,900 INFO L475 AbstractCegarLoop]: Abstraction has 2940 states and 4260 transitions. [2019-09-08 12:01:30,900 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 12:01:30,900 INFO L276 IsEmpty]: Start isEmpty. Operand 2940 states and 4260 transitions. [2019-09-08 12:01:30,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-09-08 12:01:30,901 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:30,901 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:30,902 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:30,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:30,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1864540635, now seen corresponding path program 1 times [2019-09-08 12:01:30,902 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:30,902 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:30,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:30,903 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:30,903 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:30,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:32,003 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:01:32,003 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:32,003 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-08 12:01:32,004 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 12:01:32,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 12:01:32,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-08 12:01:32,005 INFO L87 Difference]: Start difference. First operand 2940 states and 4260 transitions. Second operand 19 states. [2019-09-08 12:01:32,545 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-08 12:01:32,737 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 12:01:33,027 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 81 [2019-09-08 12:01:33,452 WARN L188 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 86 [2019-09-08 12:01:33,619 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 52 [2019-09-08 12:01:33,933 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2019-09-08 12:01:34,235 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 46 [2019-09-08 12:01:34,439 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 12:01:34,661 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 12:01:38,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:38,196 INFO L93 Difference]: Finished difference Result 12909 states and 18903 transitions. [2019-09-08 12:01:38,198 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 12:01:38,198 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 92 [2019-09-08 12:01:38,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:38,210 INFO L225 Difference]: With dead ends: 12909 [2019-09-08 12:01:38,210 INFO L226 Difference]: Without dead ends: 11776 [2019-09-08 12:01:38,214 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 12:01:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11776 states. [2019-09-08 12:01:39,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11776 to 2935. [2019-09-08 12:01:39,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2935 states. [2019-09-08 12:01:39,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2935 states to 2935 states and 4247 transitions. [2019-09-08 12:01:39,057 INFO L78 Accepts]: Start accepts. Automaton has 2935 states and 4247 transitions. Word has length 92 [2019-09-08 12:01:39,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:39,058 INFO L475 AbstractCegarLoop]: Abstraction has 2935 states and 4247 transitions. [2019-09-08 12:01:39,058 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 12:01:39,058 INFO L276 IsEmpty]: Start isEmpty. Operand 2935 states and 4247 transitions. [2019-09-08 12:01:39,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:01:39,059 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:39,059 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:39,059 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:39,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:39,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1961118974, now seen corresponding path program 1 times [2019-09-08 12:01:39,059 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:39,059 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:39,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:39,060 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:39,060 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:39,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:40,051 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 12:01:40,051 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:40,051 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2019-09-08 12:01:40,051 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 12:01:40,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 12:01:40,052 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=295, Unknown=0, NotChecked=0, Total=342 [2019-09-08 12:01:40,052 INFO L87 Difference]: Start difference. First operand 2935 states and 4247 transitions. Second operand 19 states. [2019-09-08 12:01:40,612 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 36 [2019-09-08 12:01:40,802 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2019-09-08 12:01:41,101 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2019-09-08 12:01:41,452 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 99 [2019-09-08 12:01:41,636 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 12:01:42,007 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-08 12:01:42,239 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 43 [2019-09-08 12:01:42,455 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-08 12:01:42,671 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-08 12:01:45,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:45,765 INFO L93 Difference]: Finished difference Result 11732 states and 17158 transitions. [2019-09-08 12:01:45,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2019-09-08 12:01:45,766 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 93 [2019-09-08 12:01:45,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:45,776 INFO L225 Difference]: With dead ends: 11732 [2019-09-08 12:01:45,776 INFO L226 Difference]: Without dead ends: 10118 [2019-09-08 12:01:45,781 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2019-09-08 12:01:45,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10118 states. [2019-09-08 12:01:46,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10118 to 2907. [2019-09-08 12:01:46,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2907 states. [2019-09-08 12:01:46,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2907 states to 2907 states and 4209 transitions. [2019-09-08 12:01:46,947 INFO L78 Accepts]: Start accepts. Automaton has 2907 states and 4209 transitions. Word has length 93 [2019-09-08 12:01:46,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:46,948 INFO L475 AbstractCegarLoop]: Abstraction has 2907 states and 4209 transitions. [2019-09-08 12:01:46,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 12:01:46,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2907 states and 4209 transitions. [2019-09-08 12:01:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:01:46,949 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:46,949 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:46,949 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:46,950 INFO L82 PathProgramCache]: Analyzing trace with hash 701999135, now seen corresponding path program 1 times [2019-09-08 12:01:46,950 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:46,950 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:46,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:46,951 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:46,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:46,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:47,497 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 12:01:47,497 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:47,498 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-08 12:01:47,498 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 12:01:47,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 12:01:47,498 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2019-09-08 12:01:47,499 INFO L87 Difference]: Start difference. First operand 2907 states and 4209 transitions. Second operand 14 states. [2019-09-08 12:01:47,954 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 39 [2019-09-08 12:01:48,114 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-08 12:01:48,278 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-08 12:01:48,579 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2019-09-08 12:01:48,790 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 42 [2019-09-08 12:01:50,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:50,953 INFO L93 Difference]: Finished difference Result 8786 states and 12827 transitions. [2019-09-08 12:01:50,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 12:01:50,953 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 93 [2019-09-08 12:01:50,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:50,959 INFO L225 Difference]: With dead ends: 8786 [2019-09-08 12:01:50,959 INFO L226 Difference]: Without dead ends: 7177 [2019-09-08 12:01:50,962 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2019-09-08 12:01:50,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7177 states. [2019-09-08 12:01:51,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7177 to 2860. [2019-09-08 12:01:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2860 states. [2019-09-08 12:01:51,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2860 states to 2860 states and 4149 transitions. [2019-09-08 12:01:51,754 INFO L78 Accepts]: Start accepts. Automaton has 2860 states and 4149 transitions. Word has length 93 [2019-09-08 12:01:51,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:51,755 INFO L475 AbstractCegarLoop]: Abstraction has 2860 states and 4149 transitions. [2019-09-08 12:01:51,755 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 12:01:51,755 INFO L276 IsEmpty]: Start isEmpty. Operand 2860 states and 4149 transitions. [2019-09-08 12:01:51,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:01:51,756 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:51,756 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:51,756 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:51,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:51,757 INFO L82 PathProgramCache]: Analyzing trace with hash 1241325465, now seen corresponding path program 1 times [2019-09-08 12:01:51,757 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:51,757 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:51,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:51,758 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:51,758 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:51,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:52,270 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 12:01:52,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:52,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-08 12:01:52,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 12:01:52,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 12:01:52,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=129, Unknown=0, NotChecked=0, Total=156 [2019-09-08 12:01:52,273 INFO L87 Difference]: Start difference. First operand 2860 states and 4149 transitions. Second operand 13 states. [2019-09-08 12:01:52,666 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 37 [2019-09-08 12:01:52,820 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 12:01:52,978 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 12:01:53,296 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-08 12:01:53,512 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 40 [2019-09-08 12:01:56,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:01:56,914 INFO L93 Difference]: Finished difference Result 11990 states and 17587 transitions. [2019-09-08 12:01:56,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 12:01:56,914 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 93 [2019-09-08 12:01:56,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:01:56,924 INFO L225 Difference]: With dead ends: 11990 [2019-09-08 12:01:56,924 INFO L226 Difference]: Without dead ends: 10882 [2019-09-08 12:01:56,927 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=145, Invalid=455, Unknown=0, NotChecked=0, Total=600 [2019-09-08 12:01:56,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10882 states. [2019-09-08 12:01:57,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10882 to 2856. [2019-09-08 12:01:57,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2856 states. [2019-09-08 12:01:57,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2856 states to 2856 states and 4139 transitions. [2019-09-08 12:01:57,818 INFO L78 Accepts]: Start accepts. Automaton has 2856 states and 4139 transitions. Word has length 93 [2019-09-08 12:01:57,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:01:57,818 INFO L475 AbstractCegarLoop]: Abstraction has 2856 states and 4139 transitions. [2019-09-08 12:01:57,818 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 12:01:57,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2856 states and 4139 transitions. [2019-09-08 12:01:57,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:01:57,819 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:01:57,819 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:01:57,819 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:01:57,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:01:57,819 INFO L82 PathProgramCache]: Analyzing trace with hash -1428521857, now seen corresponding path program 1 times [2019-09-08 12:01:57,819 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:01:57,819 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:01:57,820 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:57,821 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:01:57,821 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:01:57,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:01:58,669 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 12:01:58,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:01:58,670 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-08 12:01:58,670 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 12:01:58,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 12:01:58,671 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-09-08 12:01:58,671 INFO L87 Difference]: Start difference. First operand 2856 states and 4139 transitions. Second operand 17 states. [2019-09-08 12:01:59,495 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 49 [2019-09-08 12:01:59,651 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-08 12:01:59,820 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 45 [2019-09-08 12:01:59,952 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 38 [2019-09-08 12:02:03,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:03,987 INFO L93 Difference]: Finished difference Result 10981 states and 16093 transitions. [2019-09-08 12:02:03,988 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2019-09-08 12:02:03,988 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 93 [2019-09-08 12:02:03,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:03,999 INFO L225 Difference]: With dead ends: 10981 [2019-09-08 12:02:03,999 INFO L226 Difference]: Without dead ends: 9395 [2019-09-08 12:02:04,005 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=248, Invalid=808, Unknown=0, NotChecked=0, Total=1056 [2019-09-08 12:02:04,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9395 states. [2019-09-08 12:02:04,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9395 to 2847. [2019-09-08 12:02:04,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2847 states. [2019-09-08 12:02:04,978 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2847 states to 2847 states and 4128 transitions. [2019-09-08 12:02:04,979 INFO L78 Accepts]: Start accepts. Automaton has 2847 states and 4128 transitions. Word has length 93 [2019-09-08 12:02:04,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:04,979 INFO L475 AbstractCegarLoop]: Abstraction has 2847 states and 4128 transitions. [2019-09-08 12:02:04,979 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 12:02:04,979 INFO L276 IsEmpty]: Start isEmpty. Operand 2847 states and 4128 transitions. [2019-09-08 12:02:04,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:02:04,980 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:04,980 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:04,980 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:04,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:04,980 INFO L82 PathProgramCache]: Analyzing trace with hash 1704891763, now seen corresponding path program 1 times [2019-09-08 12:02:04,980 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:04,981 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:04,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:04,981 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:04,981 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:05,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:05,042 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 12:02:05,042 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:05,043 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-09-08 12:02:05,043 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-09-08 12:02:05,043 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-09-08 12:02:05,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-08 12:02:05,044 INFO L87 Difference]: Start difference. First operand 2847 states and 4128 transitions. Second operand 4 states. [2019-09-08 12:02:06,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:06,388 INFO L93 Difference]: Finished difference Result 6686 states and 9783 transitions. [2019-09-08 12:02:06,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-09-08 12:02:06,388 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 93 [2019-09-08 12:02:06,389 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:06,393 INFO L225 Difference]: With dead ends: 6686 [2019-09-08 12:02:06,393 INFO L226 Difference]: Without dead ends: 4020 [2019-09-08 12:02:06,398 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-09-08 12:02:06,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4020 states. [2019-09-08 12:02:07,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4020 to 4018. [2019-09-08 12:02:07,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4018 states. [2019-09-08 12:02:07,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4018 states to 4018 states and 5828 transitions. [2019-09-08 12:02:07,710 INFO L78 Accepts]: Start accepts. Automaton has 4018 states and 5828 transitions. Word has length 93 [2019-09-08 12:02:07,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:07,711 INFO L475 AbstractCegarLoop]: Abstraction has 4018 states and 5828 transitions. [2019-09-08 12:02:07,711 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-09-08 12:02:07,711 INFO L276 IsEmpty]: Start isEmpty. Operand 4018 states and 5828 transitions. [2019-09-08 12:02:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2019-09-08 12:02:07,711 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:07,712 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:07,712 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:07,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:07,712 INFO L82 PathProgramCache]: Analyzing trace with hash -726766473, now seen corresponding path program 1 times [2019-09-08 12:02:07,712 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:07,712 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:07,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:07,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:07,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:07,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:07,802 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 12:02:07,802 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:07,802 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 12:02:07,803 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 12:02:07,803 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 12:02:07,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 12:02:07,804 INFO L87 Difference]: Start difference. First operand 4018 states and 5828 transitions. Second operand 5 states. [2019-09-08 12:02:10,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:10,091 INFO L93 Difference]: Finished difference Result 6270 states and 9099 transitions. [2019-09-08 12:02:10,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 12:02:10,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 93 [2019-09-08 12:02:10,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:10,096 INFO L225 Difference]: With dead ends: 6270 [2019-09-08 12:02:10,096 INFO L226 Difference]: Without dead ends: 6268 [2019-09-08 12:02:10,097 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 12:02:10,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6268 states. [2019-09-08 12:02:11,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6268 to 4042. [2019-09-08 12:02:11,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4042 states. [2019-09-08 12:02:11,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4042 states to 4042 states and 5833 transitions. [2019-09-08 12:02:11,435 INFO L78 Accepts]: Start accepts. Automaton has 4042 states and 5833 transitions. Word has length 93 [2019-09-08 12:02:11,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:11,435 INFO L475 AbstractCegarLoop]: Abstraction has 4042 states and 5833 transitions. [2019-09-08 12:02:11,435 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 12:02:11,435 INFO L276 IsEmpty]: Start isEmpty. Operand 4042 states and 5833 transitions. [2019-09-08 12:02:11,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 12:02:11,436 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:11,436 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:11,436 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:11,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:11,437 INFO L82 PathProgramCache]: Analyzing trace with hash 248993705, now seen corresponding path program 1 times [2019-09-08 12:02:11,437 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:11,437 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:11,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:11,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:11,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:11,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:12,241 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 12:02:12,241 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:12,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-09-08 12:02:12,242 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 12:02:12,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 12:02:12,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2019-09-08 12:02:12,242 INFO L87 Difference]: Start difference. First operand 4042 states and 5833 transitions. Second operand 17 states. [2019-09-08 12:02:13,017 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2019-09-08 12:02:13,487 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 12:02:19,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:19,071 INFO L93 Difference]: Finished difference Result 15339 states and 22323 transitions. [2019-09-08 12:02:19,072 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-09-08 12:02:19,072 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 94 [2019-09-08 12:02:19,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:19,085 INFO L225 Difference]: With dead ends: 15339 [2019-09-08 12:02:19,085 INFO L226 Difference]: Without dead ends: 13394 [2019-09-08 12:02:19,090 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=280, Invalid=910, Unknown=0, NotChecked=0, Total=1190 [2019-09-08 12:02:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13394 states. [2019-09-08 12:02:20,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13394 to 4036. [2019-09-08 12:02:20,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4036 states. [2019-09-08 12:02:20,477 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4036 states to 4036 states and 5824 transitions. [2019-09-08 12:02:20,477 INFO L78 Accepts]: Start accepts. Automaton has 4036 states and 5824 transitions. Word has length 94 [2019-09-08 12:02:20,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:20,478 INFO L475 AbstractCegarLoop]: Abstraction has 4036 states and 5824 transitions. [2019-09-08 12:02:20,478 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 12:02:20,478 INFO L276 IsEmpty]: Start isEmpty. Operand 4036 states and 5824 transitions. [2019-09-08 12:02:20,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 12:02:20,479 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:20,479 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:20,479 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:20,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:20,479 INFO L82 PathProgramCache]: Analyzing trace with hash -2108767036, now seen corresponding path program 1 times [2019-09-08 12:02:20,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:20,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:20,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:20,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:20,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:20,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:22,101 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 12:02:22,873 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 12:02:22,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:22,874 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [32] imperfect sequences [] total 32 [2019-09-08 12:02:22,874 INFO L454 AbstractCegarLoop]: Interpolant automaton has 32 states [2019-09-08 12:02:22,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2019-09-08 12:02:22,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=95, Invalid=897, Unknown=0, NotChecked=0, Total=992 [2019-09-08 12:02:22,875 INFO L87 Difference]: Start difference. First operand 4036 states and 5824 transitions. Second operand 32 states. [2019-09-08 12:02:23,055 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-08 12:02:23,951 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2019-09-08 12:02:24,292 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 12:02:24,487 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 12:02:24,748 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2019-09-08 12:02:25,057 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 12:02:25,426 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2019-09-08 12:02:25,857 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 97 [2019-09-08 12:02:26,314 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 106 [2019-09-08 12:02:26,946 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 125 [2019-09-08 12:02:27,200 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-08 12:02:27,459 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2019-09-08 12:02:27,697 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2019-09-08 12:02:27,876 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 59 [2019-09-08 12:02:28,115 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2019-09-08 12:02:28,290 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 56 [2019-09-08 12:02:28,522 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 12:02:28,803 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 12:02:29,068 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 12:02:29,468 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 12:02:29,816 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 12:02:38,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:38,397 INFO L93 Difference]: Finished difference Result 16606 states and 24105 transitions. [2019-09-08 12:02:38,398 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-08 12:02:38,398 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 94 [2019-09-08 12:02:38,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:38,415 INFO L225 Difference]: With dead ends: 16606 [2019-09-08 12:02:38,415 INFO L226 Difference]: Without dead ends: 14664 [2019-09-08 12:02:38,421 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 719 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=786, Invalid=3246, Unknown=0, NotChecked=0, Total=4032 [2019-09-08 12:02:38,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14664 states. [2019-09-08 12:02:39,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14664 to 4040. [2019-09-08 12:02:39,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4040 states. [2019-09-08 12:02:39,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4040 states to 4040 states and 5828 transitions. [2019-09-08 12:02:39,946 INFO L78 Accepts]: Start accepts. Automaton has 4040 states and 5828 transitions. Word has length 94 [2019-09-08 12:02:39,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:39,946 INFO L475 AbstractCegarLoop]: Abstraction has 4040 states and 5828 transitions. [2019-09-08 12:02:39,946 INFO L476 AbstractCegarLoop]: Interpolant automaton has 32 states. [2019-09-08 12:02:39,946 INFO L276 IsEmpty]: Start isEmpty. Operand 4040 states and 5828 transitions. [2019-09-08 12:02:39,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 12:02:39,947 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:39,947 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:39,947 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:39,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:39,948 INFO L82 PathProgramCache]: Analyzing trace with hash -722644151, now seen corresponding path program 1 times [2019-09-08 12:02:39,948 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:39,948 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:39,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:39,949 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:39,949 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:40,405 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 40 [2019-09-08 12:02:40,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:02:40,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:40,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-08 12:02:40,621 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 12:02:40,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 12:02:40,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-08 12:02:40,622 INFO L87 Difference]: Start difference. First operand 4040 states and 5828 transitions. Second operand 14 states. [2019-09-08 12:02:41,227 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 43 [2019-09-08 12:02:41,488 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 12:02:41,770 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 12:02:42,205 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-08 12:02:42,512 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2019-09-08 12:02:42,748 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 46 [2019-09-08 12:02:43,934 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2019-09-08 12:02:52,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:02:52,252 INFO L93 Difference]: Finished difference Result 25107 states and 36526 transitions. [2019-09-08 12:02:52,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-09-08 12:02:52,252 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 94 [2019-09-08 12:02:52,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:02:52,273 INFO L225 Difference]: With dead ends: 25107 [2019-09-08 12:02:52,273 INFO L226 Difference]: Without dead ends: 23431 [2019-09-08 12:02:52,280 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=214, Invalid=716, Unknown=0, NotChecked=0, Total=930 [2019-09-08 12:02:52,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23431 states. [2019-09-08 12:02:53,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23431 to 4008. [2019-09-08 12:02:53,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4008 states. [2019-09-08 12:02:53,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4008 states to 4008 states and 5791 transitions. [2019-09-08 12:02:53,947 INFO L78 Accepts]: Start accepts. Automaton has 4008 states and 5791 transitions. Word has length 94 [2019-09-08 12:02:53,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:02:53,948 INFO L475 AbstractCegarLoop]: Abstraction has 4008 states and 5791 transitions. [2019-09-08 12:02:53,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 12:02:53,948 INFO L276 IsEmpty]: Start isEmpty. Operand 4008 states and 5791 transitions. [2019-09-08 12:02:53,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2019-09-08 12:02:53,948 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:02:53,949 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:02:53,949 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:02:53,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:02:53,949 INFO L82 PathProgramCache]: Analyzing trace with hash -582714908, now seen corresponding path program 1 times [2019-09-08 12:02:53,949 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:02:53,949 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:02:53,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:53,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:02:53,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:02:53,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:02:54,392 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 12:02:54,393 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:02:54,393 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-08 12:02:54,393 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 12:02:54,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 12:02:54,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2019-09-08 12:02:54,394 INFO L87 Difference]: Start difference. First operand 4008 states and 5791 transitions. Second operand 12 states. [2019-09-08 12:02:54,792 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-08 12:02:54,939 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 12:02:55,105 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 12:02:55,407 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 12:02:55,624 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 45 [2019-09-08 12:02:55,763 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-08 12:02:56,889 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-08 12:03:04,286 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:03:04,287 INFO L93 Difference]: Finished difference Result 21817 states and 31752 transitions. [2019-09-08 12:03:04,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2019-09-08 12:03:04,287 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 94 [2019-09-08 12:03:04,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:03:04,304 INFO L225 Difference]: With dead ends: 21817 [2019-09-08 12:03:04,304 INFO L226 Difference]: Without dead ends: 19497 [2019-09-08 12:03:04,310 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2019-09-08 12:03:04,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19497 states. [2019-09-08 12:03:06,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19497 to 3996. [2019-09-08 12:03:06,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3996 states. [2019-09-08 12:03:06,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3996 states to 3996 states and 5777 transitions. [2019-09-08 12:03:06,136 INFO L78 Accepts]: Start accepts. Automaton has 3996 states and 5777 transitions. Word has length 94 [2019-09-08 12:03:06,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:03:06,137 INFO L475 AbstractCegarLoop]: Abstraction has 3996 states and 5777 transitions. [2019-09-08 12:03:06,137 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 12:03:06,137 INFO L276 IsEmpty]: Start isEmpty. Operand 3996 states and 5777 transitions. [2019-09-08 12:03:06,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2019-09-08 12:03:06,138 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:03:06,138 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:03:06,138 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:03:06,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:03:06,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1711227384, now seen corresponding path program 1 times [2019-09-08 12:03:06,138 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:03:06,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:03:06,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:06,139 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:03:06,139 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:06,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:03:06,683 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-08 12:03:06,978 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 12:03:06,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:03:06,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-08 12:03:06,979 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 12:03:06,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 12:03:06,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2019-09-08 12:03:06,980 INFO L87 Difference]: Start difference. First operand 3996 states and 5777 transitions. Second operand 16 states. [2019-09-08 12:03:07,475 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-08 12:03:11,995 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:03:11,996 INFO L93 Difference]: Finished difference Result 10398 states and 15091 transitions. [2019-09-08 12:03:11,996 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-09-08 12:03:11,996 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 95 [2019-09-08 12:03:11,996 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:03:12,003 INFO L225 Difference]: With dead ends: 10398 [2019-09-08 12:03:12,003 INFO L226 Difference]: Without dead ends: 8437 [2019-09-08 12:03:12,007 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=147, Invalid=405, Unknown=0, NotChecked=0, Total=552 [2019-09-08 12:03:12,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8437 states. [2019-09-08 12:03:13,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8437 to 3865. [2019-09-08 12:03:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3865 states. [2019-09-08 12:03:13,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3865 states to 3865 states and 5597 transitions. [2019-09-08 12:03:13,766 INFO L78 Accepts]: Start accepts. Automaton has 3865 states and 5597 transitions. Word has length 95 [2019-09-08 12:03:13,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:03:13,766 INFO L475 AbstractCegarLoop]: Abstraction has 3865 states and 5597 transitions. [2019-09-08 12:03:13,766 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 12:03:13,767 INFO L276 IsEmpty]: Start isEmpty. Operand 3865 states and 5597 transitions. [2019-09-08 12:03:13,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2019-09-08 12:03:13,769 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:03:13,769 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:03:13,770 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:03:13,770 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:03:13,770 INFO L82 PathProgramCache]: Analyzing trace with hash -246045565, now seen corresponding path program 1 times [2019-09-08 12:03:13,770 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:03:13,770 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:03:13,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:13,771 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:03:13,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:03:13,827 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:03:13,827 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:03:13,828 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:03:13,828 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:03:13,828 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:03:13,828 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:03:13,828 INFO L87 Difference]: Start difference. First operand 3865 states and 5597 transitions. Second operand 3 states. [2019-09-08 12:03:17,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:03:17,231 INFO L93 Difference]: Finished difference Result 11101 states and 16075 transitions. [2019-09-08 12:03:17,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:03:17,232 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2019-09-08 12:03:17,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:03:17,240 INFO L225 Difference]: With dead ends: 11101 [2019-09-08 12:03:17,240 INFO L226 Difference]: Without dead ends: 7347 [2019-09-08 12:03:17,244 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 12:03:17,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7347 states. [2019-09-08 12:03:20,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7347 to 7073. [2019-09-08 12:03:20,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7073 states. [2019-09-08 12:03:20,443 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7073 states to 7073 states and 10189 transitions. [2019-09-08 12:03:20,444 INFO L78 Accepts]: Start accepts. Automaton has 7073 states and 10189 transitions. Word has length 121 [2019-09-08 12:03:20,444 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:03:20,444 INFO L475 AbstractCegarLoop]: Abstraction has 7073 states and 10189 transitions. [2019-09-08 12:03:20,444 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:03:20,444 INFO L276 IsEmpty]: Start isEmpty. Operand 7073 states and 10189 transitions. [2019-09-08 12:03:20,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2019-09-08 12:03:20,446 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:03:20,447 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:03:20,447 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:03:20,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:03:20,447 INFO L82 PathProgramCache]: Analyzing trace with hash -1023594389, now seen corresponding path program 1 times [2019-09-08 12:03:20,447 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:03:20,447 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:03:20,448 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:20,448 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:03:20,449 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:20,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:03:20,514 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:03:20,514 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:03:20,514 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:03:20,515 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:03:20,515 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:03:20,515 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:03:20,515 INFO L87 Difference]: Start difference. First operand 7073 states and 10189 transitions. Second operand 3 states. [2019-09-08 12:03:26,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:03:26,731 INFO L93 Difference]: Finished difference Result 20453 states and 29375 transitions. [2019-09-08 12:03:26,731 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:03:26,731 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 122 [2019-09-08 12:03:26,731 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:03:26,744 INFO L225 Difference]: With dead ends: 20453 [2019-09-08 12:03:26,744 INFO L226 Difference]: Without dead ends: 13491 [2019-09-08 12:03:26,752 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 12:03:26,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13491 states. [2019-09-08 12:03:32,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13491 to 12945. [2019-09-08 12:03:32,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12945 states. [2019-09-08 12:03:32,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12945 states to 12945 states and 18489 transitions. [2019-09-08 12:03:32,695 INFO L78 Accepts]: Start accepts. Automaton has 12945 states and 18489 transitions. Word has length 122 [2019-09-08 12:03:32,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:03:32,696 INFO L475 AbstractCegarLoop]: Abstraction has 12945 states and 18489 transitions. [2019-09-08 12:03:32,696 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:03:32,696 INFO L276 IsEmpty]: Start isEmpty. Operand 12945 states and 18489 transitions. [2019-09-08 12:03:32,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2019-09-08 12:03:32,697 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:03:32,697 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:03:32,697 INFO L418 AbstractCegarLoop]: === Iteration 36 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:03:32,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:03:32,698 INFO L82 PathProgramCache]: Analyzing trace with hash 404485041, now seen corresponding path program 1 times [2019-09-08 12:03:32,698 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:03:32,698 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:03:32,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:32,699 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:03:32,699 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:32,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:03:32,749 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:03:32,750 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:03:32,750 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:03:32,750 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:03:32,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:03:32,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:03:32,751 INFO L87 Difference]: Start difference. First operand 12945 states and 18489 transitions. Second operand 3 states. [2019-09-08 12:03:41,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:03:41,371 INFO L93 Difference]: Finished difference Result 27511 states and 39374 transitions. [2019-09-08 12:03:41,372 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:03:41,372 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2019-09-08 12:03:41,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:03:41,389 INFO L225 Difference]: With dead ends: 27511 [2019-09-08 12:03:41,390 INFO L226 Difference]: Without dead ends: 18293 [2019-09-08 12:03:41,402 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 12:03:41,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18293 states. [2019-09-08 12:03:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18293 to 17547. [2019-09-08 12:03:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17547 states. [2019-09-08 12:03:49,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17547 states to 17547 states and 24907 transitions. [2019-09-08 12:03:49,595 INFO L78 Accepts]: Start accepts. Automaton has 17547 states and 24907 transitions. Word has length 123 [2019-09-08 12:03:49,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:03:49,596 INFO L475 AbstractCegarLoop]: Abstraction has 17547 states and 24907 transitions. [2019-09-08 12:03:49,596 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:03:49,596 INFO L276 IsEmpty]: Start isEmpty. Operand 17547 states and 24907 transitions. [2019-09-08 12:03:49,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-08 12:03:49,597 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:03:49,597 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:03:49,597 INFO L418 AbstractCegarLoop]: === Iteration 37 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:03:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:03:49,598 INFO L82 PathProgramCache]: Analyzing trace with hash 1785596250, now seen corresponding path program 1 times [2019-09-08 12:03:49,598 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:03:49,598 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:03:49,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:49,599 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:03:49,599 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:03:49,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:03:49,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:03:49,695 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:03:49,696 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 12:03:49,696 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 12:03:49,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 12:03:49,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:03:49,698 INFO L87 Difference]: Start difference. First operand 17547 states and 24907 transitions. Second operand 7 states. [2019-09-08 12:04:12,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:04:12,203 INFO L93 Difference]: Finished difference Result 61613 states and 86998 transitions. [2019-09-08 12:04:12,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 12:04:12,203 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-09-08 12:04:12,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:04:12,255 INFO L225 Difference]: With dead ends: 61613 [2019-09-08 12:04:12,255 INFO L226 Difference]: Without dead ends: 44195 [2019-09-08 12:04:12,277 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-08 12:04:12,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44195 states. [2019-09-08 12:04:21,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44195 to 19221. [2019-09-08 12:04:21,370 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19221 states. [2019-09-08 12:04:21,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19221 states to 19221 states and 27232 transitions. [2019-09-08 12:04:21,393 INFO L78 Accepts]: Start accepts. Automaton has 19221 states and 27232 transitions. Word has length 125 [2019-09-08 12:04:21,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:04:21,394 INFO L475 AbstractCegarLoop]: Abstraction has 19221 states and 27232 transitions. [2019-09-08 12:04:21,394 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 12:04:21,394 INFO L276 IsEmpty]: Start isEmpty. Operand 19221 states and 27232 transitions. [2019-09-08 12:04:21,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 126 [2019-09-08 12:04:21,395 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:04:21,395 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:04:21,395 INFO L418 AbstractCegarLoop]: === Iteration 38 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:04:21,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:04:21,396 INFO L82 PathProgramCache]: Analyzing trace with hash -120223736, now seen corresponding path program 1 times [2019-09-08 12:04:21,396 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:04:21,396 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:04:21,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:04:21,397 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:04:21,397 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:04:21,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:04:21,486 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:04:21,486 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:04:21,486 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 12:04:21,487 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 12:04:21,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 12:04:21,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 12:04:21,487 INFO L87 Difference]: Start difference. First operand 19221 states and 27232 transitions. Second operand 7 states. [2019-09-08 12:04:45,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:04:45,038 INFO L93 Difference]: Finished difference Result 60685 states and 85052 transitions. [2019-09-08 12:04:45,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 12:04:45,038 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 125 [2019-09-08 12:04:45,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:04:45,081 INFO L225 Difference]: With dead ends: 60685 [2019-09-08 12:04:45,081 INFO L226 Difference]: Without dead ends: 41611 [2019-09-08 12:04:45,098 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-08 12:04:45,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41611 states. [2019-09-08 12:04:54,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41611 to 20877. [2019-09-08 12:04:54,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20877 states. [2019-09-08 12:04:55,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20877 states to 20877 states and 29440 transitions. [2019-09-08 12:04:55,001 INFO L78 Accepts]: Start accepts. Automaton has 20877 states and 29440 transitions. Word has length 125 [2019-09-08 12:04:55,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:04:55,001 INFO L475 AbstractCegarLoop]: Abstraction has 20877 states and 29440 transitions. [2019-09-08 12:04:55,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 12:04:55,002 INFO L276 IsEmpty]: Start isEmpty. Operand 20877 states and 29440 transitions. [2019-09-08 12:04:55,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2019-09-08 12:04:55,006 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:04:55,006 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:04:55,007 INFO L418 AbstractCegarLoop]: === Iteration 39 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:04:55,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:04:55,007 INFO L82 PathProgramCache]: Analyzing trace with hash 1884575275, now seen corresponding path program 1 times [2019-09-08 12:04:55,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:04:55,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:04:55,008 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:04:55,008 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:04:55,009 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:04:55,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:04:55,084 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 34 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:04:55,085 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:04:55,085 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:04:55,085 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:04:55,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:04:55,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:04:55,086 INFO L87 Difference]: Start difference. First operand 20877 states and 29440 transitions. Second operand 3 states. [2019-09-08 12:05:14,319 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:05:14,320 INFO L93 Difference]: Finished difference Result 60313 states and 84682 transitions. [2019-09-08 12:05:14,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:05:14,320 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 152 [2019-09-08 12:05:14,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:05:14,360 INFO L225 Difference]: With dead ends: 60313 [2019-09-08 12:05:14,361 INFO L226 Difference]: Without dead ends: 39577 [2019-09-08 12:05:14,381 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 12:05:14,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39577 states. [2019-09-08 12:05:32,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39577 to 36987. [2019-09-08 12:05:32,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36987 states. [2019-09-08 12:05:32,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36987 states to 36987 states and 51607 transitions. [2019-09-08 12:05:32,688 INFO L78 Accepts]: Start accepts. Automaton has 36987 states and 51607 transitions. Word has length 152 [2019-09-08 12:05:32,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:05:32,688 INFO L475 AbstractCegarLoop]: Abstraction has 36987 states and 51607 transitions. [2019-09-08 12:05:32,688 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:05:32,688 INFO L276 IsEmpty]: Start isEmpty. Operand 36987 states and 51607 transitions. [2019-09-08 12:05:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2019-09-08 12:05:32,692 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:05:32,693 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:05:32,693 INFO L418 AbstractCegarLoop]: === Iteration 40 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:05:32,693 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:05:32,693 INFO L82 PathProgramCache]: Analyzing trace with hash -496901830, now seen corresponding path program 1 times [2019-09-08 12:05:32,693 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:05:32,693 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:05:32,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:05:32,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:05:32,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:05:32,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:05:32,758 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:05:32,759 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 12:05:32,759 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 12:05:32,759 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 12:05:32,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 12:05:32,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 12:05:32,760 INFO L87 Difference]: Start difference. First operand 36987 states and 51607 transitions. Second operand 3 states. [2019-09-08 12:06:06,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 12:06:06,535 INFO L93 Difference]: Finished difference Result 106655 states and 147921 transitions. [2019-09-08 12:06:06,535 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 12:06:06,535 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2019-09-08 12:06:06,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 12:06:06,608 INFO L225 Difference]: With dead ends: 106655 [2019-09-08 12:06:06,608 INFO L226 Difference]: Without dead ends: 69797 [2019-09-08 12:06:06,636 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 12:06:06,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69797 states. [2019-09-08 12:06:39,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69797 to 64643. [2019-09-08 12:06:39,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64643 states. [2019-09-08 12:06:39,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64643 states to 64643 states and 89091 transitions. [2019-09-08 12:06:39,390 INFO L78 Accepts]: Start accepts. Automaton has 64643 states and 89091 transitions. Word has length 153 [2019-09-08 12:06:39,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 12:06:39,391 INFO L475 AbstractCegarLoop]: Abstraction has 64643 states and 89091 transitions. [2019-09-08 12:06:39,391 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 12:06:39,391 INFO L276 IsEmpty]: Start isEmpty. Operand 64643 states and 89091 transitions. [2019-09-08 12:06:39,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2019-09-08 12:06:39,397 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 12:06:39,397 INFO L399 BasicCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 12:06:39,398 INFO L418 AbstractCegarLoop]: === Iteration 41 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 12:06:39,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 12:06:39,398 INFO L82 PathProgramCache]: Analyzing trace with hash -1886746401, now seen corresponding path program 1 times [2019-09-08 12:06:39,398 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 12:06:39,398 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 12:06:39,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:06:39,399 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:06:39,399 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 12:06:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:06:39,699 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 19 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:06:39,700 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 12:06:39,700 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 12:06:39,720 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 12:06:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 12:06:39,928 INFO L256 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 12:06:39,944 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 12:06:40,346 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 12:06:40,477 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 12:06:40,865 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 17 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 12:06:40,876 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 12:06:40,876 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 12] total 20 [2019-09-08 12:06:40,877 INFO L454 AbstractCegarLoop]: Interpolant automaton has 20 states [2019-09-08 12:06:40,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2019-09-08 12:06:40,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=330, Unknown=0, NotChecked=0, Total=380 [2019-09-08 12:06:40,879 INFO L87 Difference]: Start difference. First operand 64643 states and 89091 transitions. Second operand 20 states. [2019-09-08 12:06:41,655 WARN L188 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 12:06:42,248 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 12:06:42,883 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 12:06:43,245 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2019-09-08 12:06:43,545 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2019-09-08 12:06:43,754 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 12:06:44,212 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 12:06:44,605 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 12:06:45,233 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 12:06:45,584 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 12:06:45,874 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 12:06:46,081 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2019-09-08 12:06:46,646 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-08 12:06:46,939 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 12:06:47,219 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 12:06:47,645 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 64 [2019-09-08 12:06:47,869 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 12:06:48,187 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 12:06:48,434 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 12:06:48,883 WARN L188 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-08 12:06:49,141 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-08 12:06:49,513 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 12:06:49,923 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:06:50,326 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:06:50,785 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:06:51,163 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:06:51,489 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:06:52,061 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:06:53,051 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:06:53,311 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:06:53,789 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2019-09-08 12:06:54,058 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 12:06:54,392 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:06:54,616 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 12:06:55,062 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-08 12:06:55,505 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 12:06:55,866 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-08 12:06:56,246 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 12:06:56,612 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 12:06:56,977 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2019-09-08 12:06:57,221 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 12:06:57,949 WARN L188 SmtUtils]: Spent 648.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-08 12:06:58,473 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:06:58,825 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 12:06:59,219 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-08 12:06:59,471 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 57 [2019-09-08 12:06:59,989 WARN L188 SmtUtils]: Spent 460.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 12:07:00,288 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:07:00,567 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 12:07:00,859 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 12:07:01,221 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 12:07:01,637 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 12:07:02,038 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 12:07:02,574 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:07:02,887 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 12:07:03,382 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 68 [2019-09-08 12:07:04,051 WARN L188 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-08 12:07:04,468 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2019-09-08 12:07:04,811 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-08 12:07:05,127 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2019-09-08 12:07:05,429 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 12:07:05,681 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2019-09-08 12:07:06,032 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 12:07:06,513 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 72 [2019-09-08 12:07:06,839 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-08 12:07:07,314 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 12:07:07,724 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 12:07:08,056 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 12:07:08,401 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 12:07:08,891 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2019-09-08 12:07:09,585 WARN L188 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:07:09,909 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 12:07:10,330 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-08 12:07:10,621 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-08 12:07:10,878 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 12:07:11,257 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:07:11,738 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-08 12:07:12,120 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-08 12:07:12,400 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 12:07:12,779 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 12:07:13,164 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 12:07:13,474 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:07:13,985 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 12:07:14,290 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:07:14,846 WARN L188 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-08 12:07:15,447 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:07:15,824 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 12:07:16,279 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-08 12:07:16,498 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 12:07:16,756 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-08 12:07:17,245 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 12:07:17,521 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 12:07:17,977 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-08 12:07:18,349 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 12:07:18,697 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-08 12:07:19,465 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 12:07:19,916 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 12:07:20,746 WARN L188 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-08 12:07:21,300 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-08 12:07:21,703 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 12:07:22,201 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-08 12:07:22,648 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:07:22,985 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 12:07:23,313 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 12:07:23,780 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:07:24,136 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 12:07:24,647 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 12:07:25,294 WARN L188 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 12:07:26,034 WARN L188 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-08 12:07:26,495 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-08 12:07:26,876 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:07:27,385 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 12:07:27,760 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 12:07:28,140 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 12:07:28,438 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:07:28,774 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 12:07:30,256 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:07:30,922 WARN L188 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-08 12:07:31,237 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 12:07:31,767 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 12:07:32,177 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 87 [2019-09-08 12:07:32,633 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-08 12:07:33,017 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 12:07:33,324 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 12:07:33,692 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:07:34,031 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 12:07:34,384 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 12:07:34,799 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:07:35,161 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-08 12:07:35,689 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-08 12:07:36,280 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 12:07:36,735 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 12:07:37,128 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 84 [2019-09-08 12:07:39,614 WARN L188 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 12:07:40,158 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 12:07:40,472 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:07:40,900 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:07:41,419 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 12:07:42,046 WARN L188 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 12:07:42,526 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 12:07:44,062 WARN L188 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-08 12:07:44,420 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:07:44,824 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:07:45,730 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-08 12:07:47,218 WARN L188 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-08 12:08:03,658 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 67 [2019-09-08 12:08:04,256 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:08:04,965 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-08 12:08:05,308 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-08 12:08:05,728 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 12:08:07,357 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-08 12:08:07,752 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 12:08:08,537 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2019-09-08 12:08:08,900 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 64 [2019-09-08 12:08:09,275 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2019-09-08 12:08:09,852 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:08:10,178 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 72 [2019-09-08 12:08:10,614 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:08:10,933 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:08:11,381 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-08 12:08:11,842 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-08 12:08:12,524 WARN L188 SmtUtils]: Spent 551.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-08 12:08:13,057 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 12:08:13,503 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-08 12:08:14,164 WARN L188 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-08 12:08:14,576 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:08:16,231 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:08:16,711 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:08:17,589 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 12:08:18,588 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:08:19,071 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 69 [2019-09-08 12:08:19,475 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-08 12:08:20,055 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 12:08:20,503 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:08:21,112 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:08:21,759 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-08 12:08:22,138 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-08 12:08:22,770 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:08:23,479 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2019-09-08 12:08:24,979 WARN L188 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:08:25,281 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:08:25,731 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 12:08:28,350 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:08:29,178 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2019-09-08 12:08:29,540 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:08:30,022 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:08:40,390 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 76 [2019-09-08 12:08:43,386 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-08 12:08:44,116 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 12:08:44,691 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 12:08:45,060 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 12:08:45,653 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 89 [2019-09-08 12:08:46,123 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 12:08:46,456 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 12:08:46,895 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2019-09-08 12:08:47,543 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 12:08:50,180 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 12:08:50,674 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 74 [2019-09-08 12:08:51,102 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 12:08:51,457 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-08 12:08:52,006 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 12:08:52,483 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-08 12:08:52,761 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 12:08:53,206 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 79 [2019-09-08 12:08:53,679 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 12:08:54,213 WARN L188 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 84 [2019-09-08 12:08:54,607 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-08 12:08:55,006 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 90 [2019-09-08 12:08:55,375 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 12:08:55,898 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 12:08:56,874 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 12:08:57,208 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 12:08:57,662 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 12:08:58,009 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-08 12:08:58,569 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 86 [2019-09-08 12:08:58,934 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:08:59,353 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 12:09:01,248 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:09:01,795 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-08 12:09:02,243 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:09:02,971 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 12:09:03,353 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 12:09:03,789 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 12:09:04,368 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 80 [2019-09-08 12:09:04,745 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 12:09:05,221 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 12:09:05,549 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 12:09:05,956 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 79 [2019-09-08 12:09:06,256 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 12:09:06,831 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 12:09:07,220 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-08 12:09:07,624 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 12:09:08,257 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:09:08,599 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 12:09:08,929 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:09:09,535 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:09:10,005 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 12:09:10,490 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:09:10,939 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 76 [2019-09-08 12:09:13,665 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:09:14,090 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 81 [2019-09-08 12:09:14,474 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 12:09:15,012 WARN L188 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 87 [2019-09-08 12:09:15,307 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:09:15,673 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 12:09:16,084 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 12:09:16,588 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:09:17,197 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 12:09:18,086 WARN L188 SmtUtils]: Spent 589.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 12:09:18,637 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:09:18,988 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 12:09:19,558 WARN L188 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 12:09:20,223 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 86 [2019-09-08 12:09:20,718 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-08 12:09:21,153 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 12:09:21,841 WARN L188 SmtUtils]: Spent 537.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-08 12:09:22,306 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:09:22,749 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 12:09:23,174 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-08 12:09:23,749 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:09:24,200 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:09:26,368 WARN L188 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 12:09:26,770 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 12:09:27,166 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 12:09:27,622 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:09:27,999 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:09:28,487 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 12:09:28,975 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:09:29,815 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 12:09:30,732 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:09:31,592 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:09:31,984 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 81 [2019-09-08 12:09:32,536 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:09:32,997 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-08 12:09:33,663 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 12:09:34,176 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 12:09:34,647 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-08 12:09:35,305 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-08 12:09:35,942 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:09:36,363 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:09:37,310 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 12:09:38,472 WARN L188 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 12:09:40,163 WARN L188 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:09:41,217 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2019-09-08 12:09:41,797 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 12:09:42,632 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:09:43,128 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:09:43,647 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 12:09:44,023 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:09:44,614 WARN L188 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 12:09:45,199 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-08 12:09:45,645 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 12:09:46,572 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 12:09:49,491 WARN L188 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:09:49,986 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 12:09:50,487 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 78 [2019-09-08 12:09:50,818 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 76 [2019-09-08 12:09:51,373 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-08 12:09:51,714 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 12:09:52,650 WARN L188 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 91 [2019-09-08 12:09:53,029 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 85 [2019-09-08 12:09:53,517 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2019-09-08 12:09:54,090 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-08 12:09:56,106 WARN L188 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-08 12:09:58,408 WARN L188 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:09:59,739 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 12:10:00,713 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 12:10:01,660 WARN L188 SmtUtils]: Spent 688.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:10:02,069 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:10:02,756 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2019-09-08 12:10:03,317 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 12:10:03,998 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 84 [2019-09-08 12:10:04,412 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 60 [2019-09-08 12:10:04,825 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 12:10:05,486 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 12:10:06,212 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-08 12:10:09,426 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 73 [2019-09-08 12:10:09,864 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 73 [2019-09-08 12:10:10,793 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 82 [2019-09-08 12:10:11,375 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2019-09-08 12:10:11,767 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 82 [2019-09-08 12:10:12,272 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 88 [2019-09-08 12:10:12,661 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 82 [2019-09-08 12:10:18,632 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 82 [2019-09-08 12:10:19,091 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 12:10:19,582 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 12:10:20,471 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 68 [2019-09-08 12:10:21,439 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 12:10:21,775 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 12:10:25,092 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 79 [2019-09-08 12:10:25,411 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 79 [2019-09-08 12:10:25,929 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 86 [2019-09-08 12:10:27,472 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-08 12:10:31,020 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 12:10:31,454 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 12:10:31,965 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2019-09-08 12:10:32,322 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2019-09-08 12:10:32,822 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-08 12:10:33,767 WARN L188 SmtUtils]: Spent 468.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 12:10:34,551 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 12:10:35,094 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-08 12:10:37,564 WARN L188 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 85 [2019-09-08 12:10:38,467 WARN L188 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-08 12:10:40,999 WARN L188 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 12:10:41,406 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 83 [2019-09-08 12:10:41,919 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 94 [2019-09-08 12:10:42,988 WARN L188 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 89 [2019-09-08 12:10:47,042 WARN L188 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 12:10:47,466 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 12:10:47,903 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 12:10:48,415 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 70 [2019-09-08 12:10:49,725 WARN L188 SmtUtils]: Spent 831.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-08 12:10:50,437 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 12:10:50,865 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 78 [2019-09-08 12:10:54,017 WARN L188 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 74 [2019-09-08 12:10:54,471 WARN L188 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 74 [2019-09-08 12:10:55,130 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 91 [2019-09-08 12:10:55,607 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 91 [2019-09-08 12:11:02,652 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2019-09-08 12:11:05,200 WARN L188 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 12:11:06,885 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-08 12:11:16,906 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 71 [2019-09-08 12:11:18,797 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 12:11:31,490 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 88 [2019-09-08 12:13:35,834 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 76 [2019-09-08 12:13:39,009 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81