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.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 11:33:05,072 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 11:33:05,074 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 11:33:05,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 11:33:05,092 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 11:33:05,094 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 11:33:05,096 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 11:33:05,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 11:33:05,108 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 11:33:05,109 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 11:33:05,110 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 11:33:05,111 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 11:33:05,111 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 11:33:05,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 11:33:05,113 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 11:33:05,114 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 11:33:05,115 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 11:33:05,116 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 11:33:05,117 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 11:33:05,119 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 11:33:05,120 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 11:33:05,121 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 11:33:05,122 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 11:33:05,123 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 11:33:05,125 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 11:33:05,128 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 11:33:05,129 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 11:33:05,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 11:33:05,130 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 11:33:05,131 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 11:33:05,131 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 11:33:05,132 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 11:33:05,132 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 11:33:05,132 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 11:33:05,133 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 11:33:05,134 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 11:33:05,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-09-08 11:33:05,157 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 11:33:05,157 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 11:33:05,158 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 11:33:05,159 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 11:33:05,159 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 11:33:05,159 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 11:33:05,159 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 11:33:05,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 11:33:05,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 11:33:05,160 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 11:33:05,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 11:33:05,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 11:33:05,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 11:33:05,161 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 11:33:05,162 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 11:33:05,162 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 11:33:05,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 11:33:05,163 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 11:33:05,163 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 11:33:05,164 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 11:33:05,164 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 11:33:05,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:33:05,165 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 11:33:05,165 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 11:33:05,165 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 11:33:05,165 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 11:33:05,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 11:33:05,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 11:33:05,166 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 11:33:05,205 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 11:33:05,217 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 11:33:05,221 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 11:33:05,222 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 11:33:05,223 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 11:33:05,223 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-09-08 11:33:05,284 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2328eb088/3291a8b75d954e3a93685246ca1c3f7e/FLAGe15201ad4 [2019-09-08 11:33:05,826 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 11:33:05,827 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-09-08 11:33:05,848 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2328eb088/3291a8b75d954e3a93685246ca1c3f7e/FLAGe15201ad4 [2019-09-08 11:33:06,069 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2328eb088/3291a8b75d954e3a93685246ca1c3f7e [2019-09-08 11:33:06,078 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 11:33:06,079 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 11:33:06,081 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 11:33:06,081 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 11:33:06,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 11:33:06,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,091 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bfbc47d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06, skipping insertion in model container [2019-09-08 11:33:06,091 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,099 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 11:33:06,169 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 11:33:06,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:33:06,697 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 11:33:06,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:33:06,895 INFO L192 MainTranslator]: Completed translation [2019-09-08 11:33:06,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06 WrapperNode [2019-09-08 11:33:06,896 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 11:33:06,897 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 11:33:06,897 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 11:33:06,897 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 11:33:06,908 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,929 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,929 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:06,995 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... [2019-09-08 11:33:07,003 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 11:33:07,004 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 11:33:07,004 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 11:33:07,004 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 11:33:07,005 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:33:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 11:33:07,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 11:33:07,097 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 11:33:07,097 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 11:33:07,098 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 11:33:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 11:33:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2019-09-08 11:33:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 11:33:07,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 11:33:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 11:33:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 11:33:07,100 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 11:33:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 11:33:07,101 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 11:33:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 11:33:07,103 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 11:33:07,106 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 11:33:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 11:33:07,107 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 11:33:08,543 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 11:33:08,544 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 11:33:08,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:33:08 BoogieIcfgContainer [2019-09-08 11:33:08,545 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 11:33:08,546 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 11:33:08,546 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 11:33:08,549 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 11:33:08,549 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:33:06" (1/3) ... [2019-09-08 11:33:08,550 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afd709c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:33:08, skipping insertion in model container [2019-09-08 11:33:08,550 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:33:06" (2/3) ... [2019-09-08 11:33:08,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7afd709c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:33:08, skipping insertion in model container [2019-09-08 11:33:08,551 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:33:08" (3/3) ... [2019-09-08 11:33:08,553 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.UNBOUNDED.pals.c.v+sep-reducer.c [2019-09-08 11:33:08,561 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 11:33:08,570 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 7 error locations. [2019-09-08 11:33:08,587 INFO L252 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-09-08 11:33:08,619 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 11:33:08,620 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 11:33:08,620 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 11:33:08,620 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 11:33:08,621 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 11:33:08,621 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 11:33:08,621 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 11:33:08,621 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 11:33:08,621 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 11:33:08,647 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states. [2019-09-08 11:33:08,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-08 11:33:08,660 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:08,661 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] [2019-09-08 11:33:08,663 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:08,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:08,669 INFO L82 PathProgramCache]: Analyzing trace with hash 1982608136, now seen corresponding path program 1 times [2019-09-08 11:33:08,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:08,671 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:08,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:08,723 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:08,723 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:08,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:09,188 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:09,188 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:09,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:09,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:09,209 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:09,211 INFO L87 Difference]: Start difference. First operand 271 states. Second operand 5 states. [2019-09-08 11:33:09,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:09,740 INFO L93 Difference]: Finished difference Result 383 states and 650 transitions. [2019-09-08 11:33:09,741 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:09,742 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-08 11:33:09,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:09,764 INFO L225 Difference]: With dead ends: 383 [2019-09-08 11:33:09,764 INFO L226 Difference]: Without dead ends: 235 [2019-09-08 11:33:09,772 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:09,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-09-08 11:33:09,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2019-09-08 11:33:09,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2019-09-08 11:33:09,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 292 transitions. [2019-09-08 11:33:09,847 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 292 transitions. Word has length 51 [2019-09-08 11:33:09,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:09,847 INFO L475 AbstractCegarLoop]: Abstraction has 235 states and 292 transitions. [2019-09-08 11:33:09,848 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:09,848 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 292 transitions. [2019-09-08 11:33:09,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-08 11:33:09,851 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:09,853 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] [2019-09-08 11:33:09,853 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:09,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:09,854 INFO L82 PathProgramCache]: Analyzing trace with hash -1667829799, now seen corresponding path program 1 times [2019-09-08 11:33:09,854 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:09,854 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:09,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:09,856 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:09,856 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:09,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:09,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:09,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:09,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:09,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:09,974 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:09,974 INFO L87 Difference]: Start difference. First operand 235 states and 292 transitions. Second operand 5 states. [2019-09-08 11:33:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:10,224 INFO L93 Difference]: Finished difference Result 303 states and 380 transitions. [2019-09-08 11:33:10,225 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:10,225 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-08 11:33:10,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:10,227 INFO L225 Difference]: With dead ends: 303 [2019-09-08 11:33:10,227 INFO L226 Difference]: Without dead ends: 181 [2019-09-08 11:33:10,230 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:10,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 181 states. [2019-09-08 11:33:10,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 181 to 181. [2019-09-08 11:33:10,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 181 states. [2019-09-08 11:33:10,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 181 states to 181 states and 223 transitions. [2019-09-08 11:33:10,251 INFO L78 Accepts]: Start accepts. Automaton has 181 states and 223 transitions. Word has length 51 [2019-09-08 11:33:10,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:10,251 INFO L475 AbstractCegarLoop]: Abstraction has 181 states and 223 transitions. [2019-09-08 11:33:10,251 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:10,251 INFO L276 IsEmpty]: Start isEmpty. Operand 181 states and 223 transitions. [2019-09-08 11:33:10,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-08 11:33:10,253 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:10,254 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] [2019-09-08 11:33:10,254 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:10,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:10,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1063133710, now seen corresponding path program 1 times [2019-09-08 11:33:10,255 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:10,255 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:10,256 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:10,257 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:10,257 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:10,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:10,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:10,343 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:10,343 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:10,344 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:10,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:10,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:10,344 INFO L87 Difference]: Start difference. First operand 181 states and 223 transitions. Second operand 5 states. [2019-09-08 11:33:10,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:10,595 INFO L93 Difference]: Finished difference Result 343 states and 439 transitions. [2019-09-08 11:33:10,595 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:10,596 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-09-08 11:33:10,596 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:10,598 INFO L225 Difference]: With dead ends: 343 [2019-09-08 11:33:10,598 INFO L226 Difference]: Without dead ends: 243 [2019-09-08 11:33:10,599 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:10,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-08 11:33:10,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 219. [2019-09-08 11:33:10,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-08 11:33:10,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 285 transitions. [2019-09-08 11:33:10,618 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 285 transitions. Word has length 51 [2019-09-08 11:33:10,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:10,618 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 285 transitions. [2019-09-08 11:33:10,619 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:10,619 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 285 transitions. [2019-09-08 11:33:10,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 11:33:10,623 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:10,623 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] [2019-09-08 11:33:10,624 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:10,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:10,624 INFO L82 PathProgramCache]: Analyzing trace with hash 1591584928, now seen corresponding path program 1 times [2019-09-08 11:33:10,624 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:10,625 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:10,627 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:10,628 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:10,628 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:10,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:10,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:10,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:10,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-09-08 11:33:10,812 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:33:10,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:33:10,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:33:10,812 INFO L87 Difference]: Start difference. First operand 219 states and 285 transitions. Second operand 8 states. [2019-09-08 11:33:11,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:11,211 INFO L93 Difference]: Finished difference Result 463 states and 620 transitions. [2019-09-08 11:33:11,211 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-08 11:33:11,211 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 52 [2019-09-08 11:33:11,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:11,214 INFO L225 Difference]: With dead ends: 463 [2019-09-08 11:33:11,214 INFO L226 Difference]: Without dead ends: 339 [2019-09-08 11:33:11,215 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:33:11,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2019-09-08 11:33:11,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 219. [2019-09-08 11:33:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-08 11:33:11,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 284 transitions. [2019-09-08 11:33:11,236 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 284 transitions. Word has length 52 [2019-09-08 11:33:11,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:11,236 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 284 transitions. [2019-09-08 11:33:11,237 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:33:11,237 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 284 transitions. [2019-09-08 11:33:11,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 11:33:11,238 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:11,239 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] [2019-09-08 11:33:11,239 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:11,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:11,240 INFO L82 PathProgramCache]: Analyzing trace with hash 1153830128, now seen corresponding path program 1 times [2019-09-08 11:33:11,240 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:11,240 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:11,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:11,242 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:11,242 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:11,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:11,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:11,460 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:11,460 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:33:11,461 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:33:11,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:33:11,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:11,462 INFO L87 Difference]: Start difference. First operand 219 states and 284 transitions. Second operand 9 states. [2019-09-08 11:33:12,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:12,272 INFO L93 Difference]: Finished difference Result 534 states and 737 transitions. [2019-09-08 11:33:12,272 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 11:33:12,272 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-09-08 11:33:12,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:12,276 INFO L225 Difference]: With dead ends: 534 [2019-09-08 11:33:12,276 INFO L226 Difference]: Without dead ends: 529 [2019-09-08 11:33:12,277 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=114, Invalid=306, Unknown=0, NotChecked=0, Total=420 [2019-09-08 11:33:12,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 529 states. [2019-09-08 11:33:12,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 529 to 219. [2019-09-08 11:33:12,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-08 11:33:12,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 283 transitions. [2019-09-08 11:33:12,303 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 283 transitions. Word has length 52 [2019-09-08 11:33:12,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:12,304 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 283 transitions. [2019-09-08 11:33:12,304 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:33:12,304 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 283 transitions. [2019-09-08 11:33:12,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 11:33:12,305 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:12,306 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] [2019-09-08 11:33:12,306 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:12,306 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:12,306 INFO L82 PathProgramCache]: Analyzing trace with hash 709117384, now seen corresponding path program 1 times [2019-09-08 11:33:12,307 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:12,307 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:12,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:12,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:12,309 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:12,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:12,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:12,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:12,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:33:12,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:33:12,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:33:12,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:12,537 INFO L87 Difference]: Start difference. First operand 219 states and 283 transitions. Second operand 9 states. [2019-09-08 11:33:13,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:13,252 INFO L93 Difference]: Finished difference Result 542 states and 761 transitions. [2019-09-08 11:33:13,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 11:33:13,253 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 52 [2019-09-08 11:33:13,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:13,256 INFO L225 Difference]: With dead ends: 542 [2019-09-08 11:33:13,256 INFO L226 Difference]: Without dead ends: 441 [2019-09-08 11:33:13,257 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=438, Unknown=0, NotChecked=0, Total=600 [2019-09-08 11:33:13,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 441 states. [2019-09-08 11:33:13,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 441 to 219. [2019-09-08 11:33:13,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 219 states. [2019-09-08 11:33:13,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 282 transitions. [2019-09-08 11:33:13,276 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 282 transitions. Word has length 52 [2019-09-08 11:33:13,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:13,277 INFO L475 AbstractCegarLoop]: Abstraction has 219 states and 282 transitions. [2019-09-08 11:33:13,277 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:33:13,277 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 282 transitions. [2019-09-08 11:33:13,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-08 11:33:13,278 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:13,278 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] [2019-09-08 11:33:13,279 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:13,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:13,279 INFO L82 PathProgramCache]: Analyzing trace with hash -547853405, now seen corresponding path program 1 times [2019-09-08 11:33:13,279 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:13,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:13,281 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:13,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:13,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:13,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:13,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:13,959 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:13,960 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2019-09-08 11:33:13,960 INFO L454 AbstractCegarLoop]: Interpolant automaton has 15 states [2019-09-08 11:33:13,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2019-09-08 11:33:13,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:33:13,961 INFO L87 Difference]: Start difference. First operand 219 states and 282 transitions. Second operand 15 states. [2019-09-08 11:33:14,406 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 29 [2019-09-08 11:33:14,557 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-08 11:33:14,696 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-08 11:33:15,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:15,407 INFO L93 Difference]: Finished difference Result 456 states and 629 transitions. [2019-09-08 11:33:15,408 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 11:33:15,408 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 54 [2019-09-08 11:33:15,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:15,410 INFO L225 Difference]: With dead ends: 456 [2019-09-08 11:33:15,411 INFO L226 Difference]: Without dead ends: 343 [2019-09-08 11:33:15,412 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 83 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=178, Invalid=472, Unknown=0, NotChecked=0, Total=650 [2019-09-08 11:33:15,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2019-09-08 11:33:15,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 208. [2019-09-08 11:33:15,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-09-08 11:33:15,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 268 transitions. [2019-09-08 11:33:15,432 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 268 transitions. Word has length 54 [2019-09-08 11:33:15,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:15,432 INFO L475 AbstractCegarLoop]: Abstraction has 208 states and 268 transitions. [2019-09-08 11:33:15,432 INFO L476 AbstractCegarLoop]: Interpolant automaton has 15 states. [2019-09-08 11:33:15,433 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 268 transitions. [2019-09-08 11:33:15,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-08 11:33:15,433 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:15,433 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] [2019-09-08 11:33:15,434 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:15,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:15,434 INFO L82 PathProgramCache]: Analyzing trace with hash -1033756485, now seen corresponding path program 1 times [2019-09-08 11:33:15,434 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:15,435 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:15,436 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:15,436 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:15,437 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:16,173 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:16,174 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:16,174 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2019-09-08 11:33:16,174 INFO L454 AbstractCegarLoop]: Interpolant automaton has 16 states [2019-09-08 11:33:16,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2019-09-08 11:33:16,175 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=203, Unknown=0, NotChecked=0, Total=240 [2019-09-08 11:33:16,176 INFO L87 Difference]: Start difference. First operand 208 states and 268 transitions. Second operand 16 states. [2019-09-08 11:33:16,790 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 11:33:17,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:17,756 INFO L93 Difference]: Finished difference Result 363 states and 470 transitions. [2019-09-08 11:33:17,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2019-09-08 11:33:17,757 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 54 [2019-09-08 11:33:17,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:17,762 INFO L225 Difference]: With dead ends: 363 [2019-09-08 11:33:17,762 INFO L226 Difference]: Without dead ends: 359 [2019-09-08 11:33:17,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=194, Invalid=562, Unknown=0, NotChecked=0, Total=756 [2019-09-08 11:33:17,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 359 states. [2019-09-08 11:33:17,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 359 to 212. [2019-09-08 11:33:17,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2019-09-08 11:33:17,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 274 transitions. [2019-09-08 11:33:17,792 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 274 transitions. Word has length 54 [2019-09-08 11:33:17,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:17,793 INFO L475 AbstractCegarLoop]: Abstraction has 212 states and 274 transitions. [2019-09-08 11:33:17,793 INFO L476 AbstractCegarLoop]: Interpolant automaton has 16 states. [2019-09-08 11:33:17,793 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 274 transitions. [2019-09-08 11:33:17,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:33:17,794 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:17,794 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] [2019-09-08 11:33:17,795 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:17,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:17,795 INFO L82 PathProgramCache]: Analyzing trace with hash 372095971, now seen corresponding path program 1 times [2019-09-08 11:33:17,795 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:17,795 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:17,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:17,796 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:17,796 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:17,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:18,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:18,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:18,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-08 11:33:18,292 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 11:33:18,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 11:33:18,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=104, Unknown=0, NotChecked=0, Total=132 [2019-09-08 11:33:18,293 INFO L87 Difference]: Start difference. First operand 212 states and 274 transitions. Second operand 12 states. [2019-09-08 11:33:19,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:19,091 INFO L93 Difference]: Finished difference Result 504 states and 702 transitions. [2019-09-08 11:33:19,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 11:33:19,092 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 55 [2019-09-08 11:33:19,092 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:19,095 INFO L225 Difference]: With dead ends: 504 [2019-09-08 11:33:19,095 INFO L226 Difference]: Without dead ends: 416 [2019-09-08 11:33:19,096 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2019-09-08 11:33:19,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-09-08 11:33:19,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 208. [2019-09-08 11:33:19,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-09-08 11:33:19,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 269 transitions. [2019-09-08 11:33:19,120 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 269 transitions. Word has length 55 [2019-09-08 11:33:19,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:19,120 INFO L475 AbstractCegarLoop]: Abstraction has 208 states and 269 transitions. [2019-09-08 11:33:19,120 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 11:33:19,121 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 269 transitions. [2019-09-08 11:33:19,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:33:19,121 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:19,122 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] [2019-09-08 11:33:19,122 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:19,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:19,122 INFO L82 PathProgramCache]: Analyzing trace with hash -27651357, now seen corresponding path program 1 times [2019-09-08 11:33:19,123 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:19,123 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:19,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:19,124 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:19,124 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:19,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:19,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:19,813 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:19,813 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2019-09-08 11:33:19,813 INFO L454 AbstractCegarLoop]: Interpolant automaton has 14 states [2019-09-08 11:33:19,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2019-09-08 11:33:19,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:33:19,814 INFO L87 Difference]: Start difference. First operand 208 states and 269 transitions. Second operand 14 states. [2019-09-08 11:33:20,290 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 36 [2019-09-08 11:33:20,441 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-09-08 11:33:20,580 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 37 [2019-09-08 11:33:20,745 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 40 [2019-09-08 11:33:21,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:21,302 INFO L93 Difference]: Finished difference Result 421 states and 573 transitions. [2019-09-08 11:33:21,306 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 11:33:21,307 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 55 [2019-09-08 11:33:21,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:21,313 INFO L225 Difference]: With dead ends: 421 [2019-09-08 11:33:21,313 INFO L226 Difference]: Without dead ends: 405 [2019-09-08 11:33:21,314 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=114, Invalid=392, Unknown=0, NotChecked=0, Total=506 [2019-09-08 11:33:21,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2019-09-08 11:33:21,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 200. [2019-09-08 11:33:21,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2019-09-08 11:33:21,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 258 transitions. [2019-09-08 11:33:21,349 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 258 transitions. Word has length 55 [2019-09-08 11:33:21,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:21,350 INFO L475 AbstractCegarLoop]: Abstraction has 200 states and 258 transitions. [2019-09-08 11:33:21,350 INFO L476 AbstractCegarLoop]: Interpolant automaton has 14 states. [2019-09-08 11:33:21,350 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 258 transitions. [2019-09-08 11:33:21,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:33:21,351 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:21,351 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] [2019-09-08 11:33:21,351 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:21,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:21,352 INFO L82 PathProgramCache]: Analyzing trace with hash 320614258, now seen corresponding path program 1 times [2019-09-08 11:33:21,352 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:21,352 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:21,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:21,353 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:21,353 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:21,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:21,461 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:21,461 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:33:21,461 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:33:21,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:33:21,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:21,462 INFO L87 Difference]: Start difference. First operand 200 states and 258 transitions. Second operand 9 states. [2019-09-08 11:33:22,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:22,014 INFO L93 Difference]: Finished difference Result 361 states and 490 transitions. [2019-09-08 11:33:22,015 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 11:33:22,015 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2019-09-08 11:33:22,015 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:22,017 INFO L225 Difference]: With dead ends: 361 [2019-09-08 11:33:22,017 INFO L226 Difference]: Without dead ends: 247 [2019-09-08 11:33:22,018 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=281, Unknown=0, NotChecked=0, Total=380 [2019-09-08 11:33:22,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 247 states. [2019-09-08 11:33:22,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 247 to 200. [2019-09-08 11:33:22,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2019-09-08 11:33:22,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 256 transitions. [2019-09-08 11:33:22,038 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 256 transitions. Word has length 55 [2019-09-08 11:33:22,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:22,038 INFO L475 AbstractCegarLoop]: Abstraction has 200 states and 256 transitions. [2019-09-08 11:33:22,038 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:33:22,039 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 256 transitions. [2019-09-08 11:33:22,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:33:22,039 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:22,039 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] [2019-09-08 11:33:22,040 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:22,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:22,040 INFO L82 PathProgramCache]: Analyzing trace with hash -1777208038, now seen corresponding path program 1 times [2019-09-08 11:33:22,040 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:22,040 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:22,041 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:22,041 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:22,042 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:22,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:22,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:22,155 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:22,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:33:22,155 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:33:22,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:33:22,156 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:22,156 INFO L87 Difference]: Start difference. First operand 200 states and 256 transitions. Second operand 9 states. [2019-09-08 11:33:22,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:22,689 INFO L93 Difference]: Finished difference Result 327 states and 431 transitions. [2019-09-08 11:33:22,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 11:33:22,690 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 55 [2019-09-08 11:33:22,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:22,692 INFO L225 Difference]: With dead ends: 327 [2019-09-08 11:33:22,692 INFO L226 Difference]: Without dead ends: 320 [2019-09-08 11:33:22,694 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2019-09-08 11:33:22,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-08 11:33:22,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 200. [2019-09-08 11:33:22,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2019-09-08 11:33:22,717 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 255 transitions. [2019-09-08 11:33:22,718 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 255 transitions. Word has length 55 [2019-09-08 11:33:22,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:22,718 INFO L475 AbstractCegarLoop]: Abstraction has 200 states and 255 transitions. [2019-09-08 11:33:22,718 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:33:22,718 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 255 transitions. [2019-09-08 11:33:22,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2019-09-08 11:33:22,719 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:22,719 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] [2019-09-08 11:33:22,719 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:22,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:22,720 INFO L82 PathProgramCache]: Analyzing trace with hash 570385884, now seen corresponding path program 1 times [2019-09-08 11:33:22,720 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:22,720 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:22,721 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:22,721 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:22,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:22,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:22,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:22,821 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:22,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:33:22,822 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:33:22,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:33:22,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:22,823 INFO L87 Difference]: Start difference. First operand 200 states and 255 transitions. Second operand 9 states. [2019-09-08 11:33:23,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:23,347 INFO L93 Difference]: Finished difference Result 327 states and 430 transitions. [2019-09-08 11:33:23,347 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 11:33:23,348 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 56 [2019-09-08 11:33:23,348 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:23,350 INFO L225 Difference]: With dead ends: 327 [2019-09-08 11:33:23,350 INFO L226 Difference]: Without dead ends: 320 [2019-09-08 11:33:23,351 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2019-09-08 11:33:23,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2019-09-08 11:33:23,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 200. [2019-09-08 11:33:23,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2019-09-08 11:33:23,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 254 transitions. [2019-09-08 11:33:23,375 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 254 transitions. Word has length 56 [2019-09-08 11:33:23,375 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:23,375 INFO L475 AbstractCegarLoop]: Abstraction has 200 states and 254 transitions. [2019-09-08 11:33:23,375 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:33:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 254 transitions. [2019-09-08 11:33:23,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-08 11:33:23,375 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:23,376 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] [2019-09-08 11:33:23,376 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:23,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:23,376 INFO L82 PathProgramCache]: Analyzing trace with hash 474332301, now seen corresponding path program 1 times [2019-09-08 11:33:23,376 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:23,377 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:23,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:23,378 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:23,378 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:23,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:23,746 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:23,747 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:23,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2019-09-08 11:33:23,747 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 11:33:23,747 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 11:33:23,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2019-09-08 11:33:23,748 INFO L87 Difference]: Start difference. First operand 200 states and 254 transitions. Second operand 12 states. [2019-09-08 11:33:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:24,760 INFO L93 Difference]: Finished difference Result 506 states and 698 transitions. [2019-09-08 11:33:24,760 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 11:33:24,760 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 57 [2019-09-08 11:33:24,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:24,763 INFO L225 Difference]: With dead ends: 506 [2019-09-08 11:33:24,763 INFO L226 Difference]: Without dead ends: 500 [2019-09-08 11:33:24,764 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2019-09-08 11:33:24,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 500 states. [2019-09-08 11:33:24,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 500 to 194. [2019-09-08 11:33:24,790 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-09-08 11:33:24,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 247 transitions. [2019-09-08 11:33:24,791 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 247 transitions. Word has length 57 [2019-09-08 11:33:24,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:24,792 INFO L475 AbstractCegarLoop]: Abstraction has 194 states and 247 transitions. [2019-09-08 11:33:24,792 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 11:33:24,792 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 247 transitions. [2019-09-08 11:33:24,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-08 11:33:24,792 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:24,793 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] [2019-09-08 11:33:24,793 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:24,793 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:24,793 INFO L82 PathProgramCache]: Analyzing trace with hash -1201954827, now seen corresponding path program 1 times [2019-09-08 11:33:24,793 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:24,794 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:24,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:24,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:24,795 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:24,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:25,282 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 11:33:25,282 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:25,282 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2019-09-08 11:33:25,283 INFO L454 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-09-08 11:33:25,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-09-08 11:33:25,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2019-09-08 11:33:25,283 INFO L87 Difference]: Start difference. First operand 194 states and 247 transitions. Second operand 18 states. [2019-09-08 11:33:25,431 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-08 11:33:25,938 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 11:33:26,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:26,843 INFO L93 Difference]: Finished difference Result 320 states and 419 transitions. [2019-09-08 11:33:26,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2019-09-08 11:33:26,844 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 57 [2019-09-08 11:33:26,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:26,845 INFO L225 Difference]: With dead ends: 320 [2019-09-08 11:33:26,846 INFO L226 Difference]: Without dead ends: 312 [2019-09-08 11:33:26,846 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=239, Invalid=951, Unknown=0, NotChecked=0, Total=1190 [2019-09-08 11:33:26,847 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2019-09-08 11:33:26,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 194. [2019-09-08 11:33:26,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 194 states. [2019-09-08 11:33:26,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 246 transitions. [2019-09-08 11:33:26,871 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 246 transitions. Word has length 57 [2019-09-08 11:33:26,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:26,871 INFO L475 AbstractCegarLoop]: Abstraction has 194 states and 246 transitions. [2019-09-08 11:33:26,871 INFO L476 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-09-08 11:33:26,871 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 246 transitions. [2019-09-08 11:33:26,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-08 11:33:26,872 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:26,872 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] [2019-09-08 11:33:26,873 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:26,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:26,873 INFO L82 PathProgramCache]: Analyzing trace with hash 2038592951, now seen corresponding path program 1 times [2019-09-08 11:33:26,873 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:26,873 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:26,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:26,874 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:26,874 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:26,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:27,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:27,090 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:27,091 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-09-08 11:33:27,091 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-09-08 11:33:27,091 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-09-08 11:33:27,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2019-09-08 11:33:27,092 INFO L87 Difference]: Start difference. First operand 194 states and 246 transitions. Second operand 10 states. [2019-09-08 11:33:27,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:27,620 INFO L93 Difference]: Finished difference Result 460 states and 644 transitions. [2019-09-08 11:33:27,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-09-08 11:33:27,621 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 58 [2019-09-08 11:33:27,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:27,624 INFO L225 Difference]: With dead ends: 460 [2019-09-08 11:33:27,624 INFO L226 Difference]: Without dead ends: 442 [2019-09-08 11:33:27,625 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=95, Invalid=211, Unknown=0, NotChecked=0, Total=306 [2019-09-08 11:33:27,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2019-09-08 11:33:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 176. [2019-09-08 11:33:27,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2019-09-08 11:33:27,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 227 transitions. [2019-09-08 11:33:27,674 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 227 transitions. Word has length 58 [2019-09-08 11:33:27,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:27,674 INFO L475 AbstractCegarLoop]: Abstraction has 176 states and 227 transitions. [2019-09-08 11:33:27,674 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-09-08 11:33:27,675 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 227 transitions. [2019-09-08 11:33:27,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-08 11:33:27,676 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:27,677 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] [2019-09-08 11:33:27,677 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:27,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:27,678 INFO L82 PathProgramCache]: Analyzing trace with hash 467030080, now seen corresponding path program 1 times [2019-09-08 11:33:27,678 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:27,678 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:27,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:27,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:27,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:27,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:28,119 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 29 [2019-09-08 11:33:28,256 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 22 [2019-09-08 11:33:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:28,657 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:28,658 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2019-09-08 11:33:28,658 INFO L454 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-09-08 11:33:28,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-09-08 11:33:28,660 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2019-09-08 11:33:28,660 INFO L87 Difference]: Start difference. First operand 176 states and 227 transitions. Second operand 13 states. [2019-09-08 11:33:29,436 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:29,436 INFO L93 Difference]: Finished difference Result 370 states and 513 transitions. [2019-09-08 11:33:29,436 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 11:33:29,436 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 58 [2019-09-08 11:33:29,437 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:29,439 INFO L225 Difference]: With dead ends: 370 [2019-09-08 11:33:29,439 INFO L226 Difference]: Without dead ends: 358 [2019-09-08 11:33:29,439 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2019-09-08 11:33:29,440 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2019-09-08 11:33:29,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 164. [2019-09-08 11:33:29,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 164 states. [2019-09-08 11:33:29,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164 states to 164 states and 215 transitions. [2019-09-08 11:33:29,468 INFO L78 Accepts]: Start accepts. Automaton has 164 states and 215 transitions. Word has length 58 [2019-09-08 11:33:29,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:29,468 INFO L475 AbstractCegarLoop]: Abstraction has 164 states and 215 transitions. [2019-09-08 11:33:29,468 INFO L476 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-09-08 11:33:29,468 INFO L276 IsEmpty]: Start isEmpty. Operand 164 states and 215 transitions. [2019-09-08 11:33:29,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-09-08 11:33:29,469 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:29,470 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:29,470 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:29,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:29,470 INFO L82 PathProgramCache]: Analyzing trace with hash 1716811533, now seen corresponding path program 1 times [2019-09-08 11:33:29,470 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:29,471 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:29,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:29,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:29,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:29,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:29,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:29,519 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:29,519 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:29,519 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:29,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:29,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:29,520 INFO L87 Difference]: Start difference. First operand 164 states and 215 transitions. Second operand 3 states. [2019-09-08 11:33:29,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:29,608 INFO L93 Difference]: Finished difference Result 324 states and 455 transitions. [2019-09-08 11:33:29,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:29,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 75 [2019-09-08 11:33:29,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:29,610 INFO L225 Difference]: With dead ends: 324 [2019-09-08 11:33:29,611 INFO L226 Difference]: Without dead ends: 240 [2019-09-08 11:33:29,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:29,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2019-09-08 11:33:29,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 238. [2019-09-08 11:33:29,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 238 states. [2019-09-08 11:33:29,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 324 transitions. [2019-09-08 11:33:29,659 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 324 transitions. Word has length 75 [2019-09-08 11:33:29,660 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:29,660 INFO L475 AbstractCegarLoop]: Abstraction has 238 states and 324 transitions. [2019-09-08 11:33:29,660 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:29,660 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 324 transitions. [2019-09-08 11:33:29,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:33:29,661 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:29,661 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:29,662 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:29,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:29,662 INFO L82 PathProgramCache]: Analyzing trace with hash -102634, now seen corresponding path program 1 times [2019-09-08 11:33:29,662 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:29,662 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:29,663 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:29,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:29,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:29,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:29,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:29,748 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:29,748 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 11:33:29,749 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 11:33:29,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 11:33:29,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:29,750 INFO L87 Difference]: Start difference. First operand 238 states and 324 transitions. Second operand 7 states. [2019-09-08 11:33:30,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:30,240 INFO L93 Difference]: Finished difference Result 894 states and 1296 transitions. [2019-09-08 11:33:30,240 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 11:33:30,240 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-09-08 11:33:30,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:30,244 INFO L225 Difference]: With dead ends: 894 [2019-09-08 11:33:30,244 INFO L226 Difference]: Without dead ends: 736 [2019-09-08 11:33:30,245 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:33:30,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 736 states. [2019-09-08 11:33:30,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 736 to 434. [2019-09-08 11:33:30,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2019-09-08 11:33:30,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 616 transitions. [2019-09-08 11:33:30,358 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 616 transitions. Word has length 77 [2019-09-08 11:33:30,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:30,359 INFO L475 AbstractCegarLoop]: Abstraction has 434 states and 616 transitions. [2019-09-08 11:33:30,359 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 11:33:30,359 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 616 transitions. [2019-09-08 11:33:30,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:33:30,366 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:30,366 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:30,367 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:30,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:30,368 INFO L82 PathProgramCache]: Analyzing trace with hash -85584643, now seen corresponding path program 1 times [2019-09-08 11:33:30,368 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:30,368 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:30,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:30,370 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:30,370 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:30,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:30,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:30,443 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:30,443 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:30,444 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:30,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:30,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:30,445 INFO L87 Difference]: Start difference. First operand 434 states and 616 transitions. Second operand 3 states. [2019-09-08 11:33:30,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:30,743 INFO L93 Difference]: Finished difference Result 1102 states and 1602 transitions. [2019-09-08 11:33:30,744 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:30,744 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-09-08 11:33:30,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:30,750 INFO L225 Difference]: With dead ends: 1102 [2019-09-08 11:33:30,750 INFO L226 Difference]: Without dead ends: 748 [2019-09-08 11:33:30,752 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 11:33:30,754 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 748 states. [2019-09-08 11:33:30,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 748 to 738. [2019-09-08 11:33:30,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 738 states. [2019-09-08 11:33:30,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 738 states to 738 states and 1048 transitions. [2019-09-08 11:33:31,000 INFO L78 Accepts]: Start accepts. Automaton has 738 states and 1048 transitions. Word has length 77 [2019-09-08 11:33:31,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:31,000 INFO L475 AbstractCegarLoop]: Abstraction has 738 states and 1048 transitions. [2019-09-08 11:33:31,000 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:31,000 INFO L276 IsEmpty]: Start isEmpty. Operand 738 states and 1048 transitions. [2019-09-08 11:33:31,002 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:33:31,002 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:31,002 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:31,002 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:31,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:31,003 INFO L82 PathProgramCache]: Analyzing trace with hash -19091131, now seen corresponding path program 1 times [2019-09-08 11:33:31,003 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:31,003 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:31,006 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:31,006 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:31,007 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:31,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:31,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:31,069 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:31,069 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:31,070 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:31,070 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:31,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:31,070 INFO L87 Difference]: Start difference. First operand 738 states and 1048 transitions. Second operand 3 states. [2019-09-08 11:33:31,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:31,323 INFO L93 Difference]: Finished difference Result 1734 states and 2502 transitions. [2019-09-08 11:33:31,324 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:31,324 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 77 [2019-09-08 11:33:31,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:31,329 INFO L225 Difference]: With dead ends: 1734 [2019-09-08 11:33:31,329 INFO L226 Difference]: Without dead ends: 1076 [2019-09-08 11:33:31,332 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:31,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1076 states. [2019-09-08 11:33:31,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1076 to 1074. [2019-09-08 11:33:31,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1074 states. [2019-09-08 11:33:31,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1074 states to 1074 states and 1532 transitions. [2019-09-08 11:33:31,553 INFO L78 Accepts]: Start accepts. Automaton has 1074 states and 1532 transitions. Word has length 77 [2019-09-08 11:33:31,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:31,553 INFO L475 AbstractCegarLoop]: Abstraction has 1074 states and 1532 transitions. [2019-09-08 11:33:31,553 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 1074 states and 1532 transitions. [2019-09-08 11:33:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2019-09-08 11:33:31,555 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:31,555 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:31,556 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:31,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:31,556 INFO L82 PathProgramCache]: Analyzing trace with hash 614575382, now seen corresponding path program 1 times [2019-09-08 11:33:31,556 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:31,556 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:31,557 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:31,557 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:31,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:31,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:31,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:31,663 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:31,663 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 11:33:31,664 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 11:33:31,664 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 11:33:31,664 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:31,664 INFO L87 Difference]: Start difference. First operand 1074 states and 1532 transitions. Second operand 7 states. [2019-09-08 11:33:32,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:32,599 INFO L93 Difference]: Finished difference Result 3938 states and 5687 transitions. [2019-09-08 11:33:32,601 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 11:33:32,601 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 77 [2019-09-08 11:33:32,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:32,615 INFO L225 Difference]: With dead ends: 3938 [2019-09-08 11:33:32,615 INFO L226 Difference]: Without dead ends: 2944 [2019-09-08 11:33:32,643 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:33:32,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2944 states. [2019-09-08 11:33:33,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2944 to 1854. [2019-09-08 11:33:33,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1854 states. [2019-09-08 11:33:33,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1854 states to 1854 states and 2666 transitions. [2019-09-08 11:33:33,083 INFO L78 Accepts]: Start accepts. Automaton has 1854 states and 2666 transitions. Word has length 77 [2019-09-08 11:33:33,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:33,083 INFO L475 AbstractCegarLoop]: Abstraction has 1854 states and 2666 transitions. [2019-09-08 11:33:33,084 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 11:33:33,084 INFO L276 IsEmpty]: Start isEmpty. Operand 1854 states and 2666 transitions. [2019-09-08 11:33:33,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-08 11:33:33,085 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:33,086 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:33,086 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:33,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:33,086 INFO L82 PathProgramCache]: Analyzing trace with hash -983370934, now seen corresponding path program 1 times [2019-09-08 11:33:33,086 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:33,087 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:33,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:33,088 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:33,088 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:33,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:33,162 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:33,162 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:33:33,162 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:33:33,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:33:33,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:33:33,163 INFO L87 Difference]: Start difference. First operand 1854 states and 2666 transitions. Second operand 6 states. [2019-09-08 11:33:33,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:33,845 INFO L93 Difference]: Finished difference Result 3318 states and 4694 transitions. [2019-09-08 11:33:33,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-08 11:33:33,846 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 78 [2019-09-08 11:33:33,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:33,857 INFO L225 Difference]: With dead ends: 3318 [2019-09-08 11:33:33,857 INFO L226 Difference]: Without dead ends: 3316 [2019-09-08 11:33:33,858 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:33:33,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3316 states. [2019-09-08 11:33:34,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3316 to 1902. [2019-09-08 11:33:34,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1902 states. [2019-09-08 11:33:34,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1902 states to 1902 states and 2706 transitions. [2019-09-08 11:33:34,462 INFO L78 Accepts]: Start accepts. Automaton has 1902 states and 2706 transitions. Word has length 78 [2019-09-08 11:33:34,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:34,463 INFO L475 AbstractCegarLoop]: Abstraction has 1902 states and 2706 transitions. [2019-09-08 11:33:34,463 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:33:34,463 INFO L276 IsEmpty]: Start isEmpty. Operand 1902 states and 2706 transitions. [2019-09-08 11:33:34,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2019-09-08 11:33:34,464 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:34,465 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:34,465 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:34,465 INFO L82 PathProgramCache]: Analyzing trace with hash 2117428995, now seen corresponding path program 1 times [2019-09-08 11:33:34,466 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:34,466 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:34,467 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:34,468 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:34,468 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:34,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:34,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:34,552 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:34,552 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-08 11:33:34,552 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 11:33:34,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 11:33:34,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:34,558 INFO L87 Difference]: Start difference. First operand 1902 states and 2706 transitions. Second operand 7 states. [2019-09-08 11:33:35,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:35,587 INFO L93 Difference]: Finished difference Result 5926 states and 8410 transitions. [2019-09-08 11:33:35,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 11:33:35,588 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 78 [2019-09-08 11:33:35,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:35,601 INFO L225 Difference]: With dead ends: 5926 [2019-09-08 11:33:35,601 INFO L226 Difference]: Without dead ends: 4104 [2019-09-08 11:33:35,612 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:33:35,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4104 states. [2019-09-08 11:33:36,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4104 to 2438. [2019-09-08 11:33:36,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2438 states. [2019-09-08 11:33:36,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2438 states to 2438 states and 3430 transitions. [2019-09-08 11:33:36,231 INFO L78 Accepts]: Start accepts. Automaton has 2438 states and 3430 transitions. Word has length 78 [2019-09-08 11:33:36,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:36,231 INFO L475 AbstractCegarLoop]: Abstraction has 2438 states and 3430 transitions. [2019-09-08 11:33:36,231 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 11:33:36,231 INFO L276 IsEmpty]: Start isEmpty. Operand 2438 states and 3430 transitions. [2019-09-08 11:33:36,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-09-08 11:33:36,232 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:36,232 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:33:36,233 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:36,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:36,233 INFO L82 PathProgramCache]: Analyzing trace with hash 694564540, now seen corresponding path program 1 times [2019-09-08 11:33:36,233 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:36,233 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:36,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:36,234 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:36,234 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:36,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:36,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:36,280 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:36,280 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:36,281 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:36,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:36,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:36,281 INFO L87 Difference]: Start difference. First operand 2438 states and 3430 transitions. Second operand 3 states. [2019-09-08 11:33:37,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:37,101 INFO L93 Difference]: Finished difference Result 5806 states and 8200 transitions. [2019-09-08 11:33:37,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:37,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 79 [2019-09-08 11:33:37,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:37,114 INFO L225 Difference]: With dead ends: 5806 [2019-09-08 11:33:37,114 INFO L226 Difference]: Without dead ends: 3448 [2019-09-08 11:33:37,120 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:37,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3448 states. [2019-09-08 11:33:37,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3448 to 2476. [2019-09-08 11:33:37,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2019-09-08 11:33:37,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3457 transitions. [2019-09-08 11:33:37,634 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3457 transitions. Word has length 79 [2019-09-08 11:33:37,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:37,634 INFO L475 AbstractCegarLoop]: Abstraction has 2476 states and 3457 transitions. [2019-09-08 11:33:37,634 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:37,634 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3457 transitions. [2019-09-08 11:33:37,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 11:33:37,636 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:37,636 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 11:33:37,636 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:37,637 INFO L82 PathProgramCache]: Analyzing trace with hash -1702117812, now seen corresponding path program 1 times [2019-09-08 11:33:37,637 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:37,637 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:37,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:37,638 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:37,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:37,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:37,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:37,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:37,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:37,690 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:37,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:37,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:37,691 INFO L87 Difference]: Start difference. First operand 2476 states and 3457 transitions. Second operand 3 states. [2019-09-08 11:33:38,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:38,331 INFO L93 Difference]: Finished difference Result 5298 states and 7397 transitions. [2019-09-08 11:33:38,331 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:38,331 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 80 [2019-09-08 11:33:38,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:38,342 INFO L225 Difference]: With dead ends: 5298 [2019-09-08 11:33:38,342 INFO L226 Difference]: Without dead ends: 2902 [2019-09-08 11:33:38,347 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:38,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2902 states. [2019-09-08 11:33:38,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2902 to 2270. [2019-09-08 11:33:38,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2270 states. [2019-09-08 11:33:38,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2270 states to 2270 states and 3102 transitions. [2019-09-08 11:33:38,825 INFO L78 Accepts]: Start accepts. Automaton has 2270 states and 3102 transitions. Word has length 80 [2019-09-08 11:33:38,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:38,825 INFO L475 AbstractCegarLoop]: Abstraction has 2270 states and 3102 transitions. [2019-09-08 11:33:38,825 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:38,825 INFO L276 IsEmpty]: Start isEmpty. Operand 2270 states and 3102 transitions. [2019-09-08 11:33:38,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-08 11:33:38,826 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:38,826 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] [2019-09-08 11:33:38,826 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:38,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:38,827 INFO L82 PathProgramCache]: Analyzing trace with hash -68913520, now seen corresponding path program 1 times [2019-09-08 11:33:38,827 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:38,827 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:38,827 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:38,828 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:38,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:38,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:38,877 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:38,877 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:33:38,877 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:33:38,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:33:38,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:38,878 INFO L87 Difference]: Start difference. First operand 2270 states and 3102 transitions. Second operand 3 states. [2019-09-08 11:33:39,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:39,570 INFO L93 Difference]: Finished difference Result 4748 states and 6516 transitions. [2019-09-08 11:33:39,570 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:33:39,570 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 81 [2019-09-08 11:33:39,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:39,579 INFO L225 Difference]: With dead ends: 4748 [2019-09-08 11:33:39,580 INFO L226 Difference]: Without dead ends: 2558 [2019-09-08 11:33:39,585 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:33:39,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2558 states. [2019-09-08 11:33:40,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2558 to 2476. [2019-09-08 11:33:40,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2476 states. [2019-09-08 11:33:40,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2476 states to 2476 states and 3350 transitions. [2019-09-08 11:33:40,191 INFO L78 Accepts]: Start accepts. Automaton has 2476 states and 3350 transitions. Word has length 81 [2019-09-08 11:33:40,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:40,192 INFO L475 AbstractCegarLoop]: Abstraction has 2476 states and 3350 transitions. [2019-09-08 11:33:40,192 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:33:40,192 INFO L276 IsEmpty]: Start isEmpty. Operand 2476 states and 3350 transitions. [2019-09-08 11:33:40,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-08 11:33:40,193 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:40,194 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:33:40,194 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:40,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:40,194 INFO L82 PathProgramCache]: Analyzing trace with hash 1536851179, now seen corresponding path program 1 times [2019-09-08 11:33:40,194 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:40,195 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:40,195 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:40,196 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:40,196 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:40,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:40,277 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2019-09-08 11:33:40,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:40,278 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:40,278 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:40,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:40,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:40,279 INFO L87 Difference]: Start difference. First operand 2476 states and 3350 transitions. Second operand 5 states. [2019-09-08 11:33:41,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:41,920 INFO L93 Difference]: Finished difference Result 9866 states and 13366 transitions. [2019-09-08 11:33:41,921 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:41,922 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-08 11:33:41,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:41,939 INFO L225 Difference]: With dead ends: 9866 [2019-09-08 11:33:41,939 INFO L226 Difference]: Without dead ends: 7470 [2019-09-08 11:33:41,946 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:41,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7470 states. [2019-09-08 11:33:43,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7470 to 4208. [2019-09-08 11:33:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4208 states. [2019-09-08 11:33:43,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4208 states to 4208 states and 5686 transitions. [2019-09-08 11:33:43,118 INFO L78 Accepts]: Start accepts. Automaton has 4208 states and 5686 transitions. Word has length 100 [2019-09-08 11:33:43,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:43,119 INFO L475 AbstractCegarLoop]: Abstraction has 4208 states and 5686 transitions. [2019-09-08 11:33:43,119 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:43,119 INFO L276 IsEmpty]: Start isEmpty. Operand 4208 states and 5686 transitions. [2019-09-08 11:33:43,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2019-09-08 11:33:43,121 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:43,121 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:33:43,122 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:43,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:43,122 INFO L82 PathProgramCache]: Analyzing trace with hash -2143438101, now seen corresponding path program 1 times [2019-09-08 11:33:43,122 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:43,122 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:43,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:43,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:43,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:43,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:43,197 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2019-09-08 11:33:43,197 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:43,198 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:43,198 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:43,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:43,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:43,198 INFO L87 Difference]: Start difference. First operand 4208 states and 5686 transitions. Second operand 5 states. [2019-09-08 11:33:45,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:45,424 INFO L93 Difference]: Finished difference Result 11670 states and 15804 transitions. [2019-09-08 11:33:45,425 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:45,425 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 100 [2019-09-08 11:33:45,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:45,446 INFO L225 Difference]: With dead ends: 11670 [2019-09-08 11:33:45,446 INFO L226 Difference]: Without dead ends: 9274 [2019-09-08 11:33:45,453 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:33:45,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9274 states. [2019-09-08 11:33:47,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9274 to 6766. [2019-09-08 11:33:47,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6766 states. [2019-09-08 11:33:47,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6766 states to 6766 states and 9126 transitions. [2019-09-08 11:33:47,210 INFO L78 Accepts]: Start accepts. Automaton has 6766 states and 9126 transitions. Word has length 100 [2019-09-08 11:33:47,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:47,211 INFO L475 AbstractCegarLoop]: Abstraction has 6766 states and 9126 transitions. [2019-09-08 11:33:47,211 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:47,211 INFO L276 IsEmpty]: Start isEmpty. Operand 6766 states and 9126 transitions. [2019-09-08 11:33:47,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-08 11:33:47,213 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:47,214 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:33:47,214 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:47,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:47,214 INFO L82 PathProgramCache]: Analyzing trace with hash -1776610354, now seen corresponding path program 1 times [2019-09-08 11:33:47,215 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:47,215 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:47,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:47,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:47,216 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:47,301 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:33:47,301 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:33:47,301 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:33:47,301 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:33:47,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:33:47,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:33:47,302 INFO L87 Difference]: Start difference. First operand 6766 states and 9126 transitions. Second operand 5 states. [2019-09-08 11:33:49,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:49,302 INFO L93 Difference]: Finished difference Result 11000 states and 14873 transitions. [2019-09-08 11:33:49,302 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:33:49,302 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 101 [2019-09-08 11:33:49,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:49,321 INFO L225 Difference]: With dead ends: 11000 [2019-09-08 11:33:49,321 INFO L226 Difference]: Without dead ends: 8604 [2019-09-08 11:33:49,330 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=16, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:33:49,338 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8604 states. [2019-09-08 11:33:51,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8604 to 7672. [2019-09-08 11:33:51,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7672 states. [2019-09-08 11:33:51,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7672 states to 7672 states and 10358 transitions. [2019-09-08 11:33:51,708 INFO L78 Accepts]: Start accepts. Automaton has 7672 states and 10358 transitions. Word has length 101 [2019-09-08 11:33:51,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:33:51,709 INFO L475 AbstractCegarLoop]: Abstraction has 7672 states and 10358 transitions. [2019-09-08 11:33:51,710 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:33:51,710 INFO L276 IsEmpty]: Start isEmpty. Operand 7672 states and 10358 transitions. [2019-09-08 11:33:51,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2019-09-08 11:33:51,713 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:33:51,714 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:33:51,715 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:33:51,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:33:51,715 INFO L82 PathProgramCache]: Analyzing trace with hash -1162299485, now seen corresponding path program 1 times [2019-09-08 11:33:51,715 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:33:51,715 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:33:51,716 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:51,716 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:51,717 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:33:51,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:51,965 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:51,965 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:33:51,965 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:33:52,000 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:33:52,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:33:52,123 INFO L256 TraceCheckSpWp]: Trace formula consists of 772 conjuncts, 6 conjunts are in the unsatisfiable core [2019-09-08 11:33:52,133 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:33:52,178 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:33:52,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:33:52,192 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [11] total 12 [2019-09-08 11:33:52,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-09-08 11:33:52,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-09-08 11:33:52,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2019-09-08 11:33:52,195 INFO L87 Difference]: Start difference. First operand 7672 states and 10358 transitions. Second operand 12 states. [2019-09-08 11:34:01,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:34:01,514 INFO L93 Difference]: Finished difference Result 28708 states and 37896 transitions. [2019-09-08 11:34:01,515 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-08 11:34:01,515 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 102 [2019-09-08 11:34:01,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:34:01,564 INFO L225 Difference]: With dead ends: 28708 [2019-09-08 11:34:01,565 INFO L226 Difference]: Without dead ends: 21116 [2019-09-08 11:34:01,583 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 173 GetRequests, 120 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 795 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=638, Invalid=2332, Unknown=0, NotChecked=0, Total=2970 [2019-09-08 11:34:01,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21116 states. [2019-09-08 11:34:04,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21116 to 11636. [2019-09-08 11:34:04,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11636 states. [2019-09-08 11:34:04,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11636 states to 11636 states and 15133 transitions. [2019-09-08 11:34:04,878 INFO L78 Accepts]: Start accepts. Automaton has 11636 states and 15133 transitions. Word has length 102 [2019-09-08 11:34:04,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:34:04,878 INFO L475 AbstractCegarLoop]: Abstraction has 11636 states and 15133 transitions. [2019-09-08 11:34:04,879 INFO L476 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-09-08 11:34:04,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11636 states and 15133 transitions. [2019-09-08 11:34:04,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2019-09-08 11:34:04,882 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:34:04,882 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:34:04,882 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:34:04,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:34:04,883 INFO L82 PathProgramCache]: Analyzing trace with hash -515758727, now seen corresponding path program 1 times [2019-09-08 11:34:04,883 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:34:04,883 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:34:04,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:04,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:04,885 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:04,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:05,378 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:34:05,379 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:34:05,379 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:34:05,391 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:05,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:05,494 INFO L256 TraceCheckSpWp]: Trace formula consists of 771 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 11:34:05,500 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:34:05,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:34:05,703 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:34:06,148 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 11 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:34:06,167 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:34:06,167 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10] total 23 [2019-09-08 11:34:06,169 INFO L454 AbstractCegarLoop]: Interpolant automaton has 23 states [2019-09-08 11:34:06,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2019-09-08 11:34:06,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2019-09-08 11:34:06,170 INFO L87 Difference]: Start difference. First operand 11636 states and 15133 transitions. Second operand 23 states. [2019-09-08 11:34:06,414 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 71 [2019-09-08 11:34:06,637 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 11:34:06,946 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:34:07,119 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:34:09,065 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-09-08 11:34:09,986 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:34:10,777 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:34:11,315 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:34:11,475 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:34:11,797 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:34:12,501 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 11:34:12,668 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:34:13,441 WARN L188 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:34:13,735 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:34:13,972 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:34:14,993 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:34:15,925 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 11:34:16,249 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:34:17,319 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:34:18,305 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:34:18,496 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:34:19,087 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:34:19,517 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:34:20,258 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:34:20,744 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:34:21,333 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:34:21,694 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:34:22,000 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:34:22,330 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:34:22,479 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 11:34:23,266 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 36 DAG size of output: 27 [2019-09-08 11:34:24,003 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:34:24,322 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:34:24,691 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:34:24,912 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:34:26,152 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:34:26,872 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2019-09-08 11:34:27,496 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 59 [2019-09-08 11:34:27,969 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:34:28,250 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:34:28,401 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:34:29,639 WARN L188 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:34:29,937 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:34:30,469 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 11:34:31,386 WARN L188 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:34:32,158 WARN L188 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 11:34:32,625 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:34:32,939 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 11:34:34,187 WARN L188 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:34:34,511 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 11:34:34,818 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:34:35,279 WARN L188 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 11:34:35,926 WARN L188 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:34:36,746 WARN L188 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 11:34:37,581 WARN L188 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:34:37,933 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 11:34:38,314 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2019-09-08 11:34:38,718 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 11:34:39,019 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 11:34:39,217 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:34:39,559 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:34:39,978 WARN L188 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:34:40,621 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2019-09-08 11:34:40,861 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 11:34:41,094 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 11:34:41,294 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-09-08 11:34:41,697 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 11:34:42,046 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2019-09-08 11:34:42,292 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:34:42,659 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:34:42,948 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 11:34:43,550 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:34:43,802 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 11:34:44,171 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 11:34:44,509 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:34:44,897 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 11:34:45,113 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:34:48,355 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:34:49,185 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:34:53,483 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:34:54,239 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:34:54,620 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:34:55,919 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:34:56,530 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 11:34:58,571 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:35:00,749 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 11:35:01,795 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:35:02,935 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 67 [2019-09-08 11:35:03,512 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 11:35:04,462 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 11:35:05,791 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:35:06,236 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:35:06,463 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 11:35:06,886 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 11:35:07,921 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 11:35:08,648 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 63 [2019-09-08 11:35:08,863 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 11:35:09,996 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:35:10,385 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 11:35:10,979 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:35:11,195 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:35:12,348 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:35:12,825 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2019-09-08 11:35:13,067 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:35:13,883 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 70 [2019-09-08 11:35:14,279 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:35:15,129 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 11:35:15,527 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 73 [2019-09-08 11:35:15,800 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 11:35:15,962 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:35:16,336 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:35:16,629 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:35:17,254 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 11:35:18,698 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:35:19,185 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:35:19,461 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:35:20,005 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 11:35:20,343 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 61 [2019-09-08 11:35:20,866 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:35:21,165 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:35:21,330 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 11:35:21,488 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:35:21,743 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:35:22,125 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:35:22,414 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:35:23,273 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:35:23,912 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 11:35:24,593 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:35:25,060 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 11:35:25,224 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 60 [2019-09-08 11:35:25,478 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:35:25,633 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2019-09-08 11:35:26,011 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 11:35:26,437 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 11:35:26,627 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:35:26,793 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 11:35:28,126 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2019-09-08 11:35:28,935 WARN L188 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2019-09-08 11:35:29,387 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2019-09-08 11:35:29,630 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 11:35:30,122 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:35:30,849 WARN L188 SmtUtils]: Spent 532.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:35:31,189 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 11:35:31,461 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 62 [2019-09-08 11:35:31,717 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:35:31,997 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:35:33,277 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:35:34,071 WARN L188 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 74 [2019-09-08 11:35:35,170 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 11:35:35,671 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 67 [2019-09-08 11:35:35,983 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 64 [2019-09-08 11:35:36,406 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:35:36,683 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:35:36,918 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 11:35:37,286 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:35:37,590 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 11:35:38,173 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 11:35:38,832 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:35:39,192 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2019-09-08 11:35:40,146 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 70 [2019-09-08 11:35:41,104 WARN L188 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-08 11:35:41,688 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2019-09-08 11:35:42,129 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 11:35:42,670 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 11:35:42,932 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:35:44,578 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 11:35:45,302 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:35:46,122 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:35:54,222 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:35:55,550 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:35:56,097 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:35:56,491 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:35:57,293 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:35:57,567 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:35:58,088 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 11:35:58,895 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:00,550 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 11:36:02,260 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:36:03,538 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 11:36:04,034 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:05,611 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:36:05,966 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2019-09-08 11:36:06,433 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:36:06,702 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 11:36:07,586 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:36:11,466 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:36:11,851 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:36:12,108 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:36:12,667 WARN L188 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:36:13,404 WARN L188 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:36:14,407 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:36:16,312 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:36:16,679 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:36:17,185 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:17,390 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:17,756 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:36:18,074 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:36:18,324 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:36:18,733 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:36:19,592 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:36:20,112 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2019-09-08 11:36:21,702 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 11:36:21,966 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2019-09-08 11:36:22,371 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-08 11:36:22,558 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:36:23,009 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:36:23,296 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:36:23,685 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:36:24,075 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2019-09-08 11:36:24,305 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:36:25,173 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 11:36:25,964 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2019-09-08 11:36:27,166 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:36:27,829 WARN L188 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:36:28,306 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 50 [2019-09-08 11:36:28,540 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:36:28,993 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 58 [2019-09-08 11:36:29,263 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 51 [2019-09-08 11:36:29,748 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2019-09-08 11:36:30,704 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:36:32,029 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2019-09-08 11:36:32,549 WARN L188 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 74 [2019-09-08 11:36:33,251 WARN L188 SmtUtils]: Spent 626.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:36:33,510 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:36:34,350 WARN L188 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:36:34,773 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2019-09-08 11:36:35,344 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:36:36,246 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:36:37,955 WARN L188 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2019-09-08 11:36:38,118 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 56 [2019-09-08 11:36:38,713 WARN L188 SmtUtils]: Spent 415.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2019-09-08 11:36:39,027 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:39,842 WARN L188 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2019-09-08 11:36:40,317 WARN L188 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 79 [2019-09-08 11:36:40,805 WARN L188 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2019-09-08 11:36:41,288 WARN L188 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2019-09-08 11:36:42,134 WARN L188 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2019-09-08 11:36:42,576 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2019-09-08 11:36:42,803 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 65 [2019-09-08 11:36:43,177 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 11:36:43,658 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2019-09-08 11:36:43,876 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:36:45,411 WARN L188 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:36:45,718 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:36:46,379 WARN L188 SmtUtils]: Spent 607.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2019-09-08 11:36:46,746 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:36:47,264 WARN L188 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 68 [2019-09-08 11:36:47,822 WARN L188 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:36:48,372 WARN L188 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2019-09-08 11:36:48,854 WARN L188 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 76 [2019-09-08 11:36:49,192 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2019-09-08 11:36:50,001 WARN L188 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 11:36:51,406 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:36:52,041 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2019-09-08 11:38:03,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:38:03,742 INFO L93 Difference]: Finished difference Result 379958 states and 484217 transitions. [2019-09-08 11:38:03,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 529 states. [2019-09-08 11:38:03,742 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 103 [2019-09-08 11:38:03,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:38:04,626 INFO L225 Difference]: With dead ends: 379958 [2019-09-08 11:38:04,626 INFO L226 Difference]: Without dead ends: 368402 [2019-09-08 11:38:04,749 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 645 GetRequests, 96 SyntacticMatches, 1 SemanticMatches, 548 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 141615 ImplicationChecksByTransitivity, 111.6s TimeCoverageRelationStatistics Valid=24507, Invalid=277443, Unknown=0, NotChecked=0, Total=301950 [2019-09-08 11:38:05,008 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368402 states. [2019-09-08 11:38:27,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368402 to 60322. [2019-09-08 11:38:27,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60322 states. [2019-09-08 11:38:27,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60322 states to 60322 states and 77956 transitions. [2019-09-08 11:38:27,562 INFO L78 Accepts]: Start accepts. Automaton has 60322 states and 77956 transitions. Word has length 103 [2019-09-08 11:38:27,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:38:27,563 INFO L475 AbstractCegarLoop]: Abstraction has 60322 states and 77956 transitions. [2019-09-08 11:38:27,563 INFO L476 AbstractCegarLoop]: Interpolant automaton has 23 states. [2019-09-08 11:38:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 60322 states and 77956 transitions. [2019-09-08 11:38:27,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 11:38:27,572 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:38:27,572 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:38:27,573 INFO L418 AbstractCegarLoop]: === Iteration 33 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:38:27,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:38:27,573 INFO L82 PathProgramCache]: Analyzing trace with hash -419093905, now seen corresponding path program 1 times [2019-09-08 11:38:27,573 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:38:27,574 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:38:27,574 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:38:27,575 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:38:27,575 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:38:27,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:38:27,894 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:38:27,895 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:38:27,895 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:38:27,908 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:38:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:38:28,009 INFO L256 TraceCheckSpWp]: Trace formula consists of 776 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:38:28,013 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:38:28,085 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:28,165 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:28,166 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:28,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:28,672 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2019-09-08 11:38:28,719 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:38:28,733 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:38:28,733 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10] total 22 [2019-09-08 11:38:28,734 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 11:38:28,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 11:38:28,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=417, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:38:28,735 INFO L87 Difference]: Start difference. First operand 60322 states and 77956 transitions. Second operand 22 states. [2019-09-08 11:38:33,945 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 11:38:34,336 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:38:35,004 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:38:35,194 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:38:35,787 WARN L188 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-08 11:38:36,923 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:38:37,152 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 59 [2019-09-08 11:38:37,576 WARN L188 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:38:37,967 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-08 11:38:38,494 WARN L188 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:38:39,026 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-08 11:38:39,229 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:38:39,628 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2019-09-08 11:38:40,049 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:38:40,676 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:38:41,293 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2019-09-08 11:38:42,147 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2019-09-08 11:38:42,964 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2019-09-08 11:38:44,382 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2019-09-08 11:38:44,672 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2019-09-08 11:38:45,718 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:38:46,177 WARN L188 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:38:48,625 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 11:38:51,357 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 11:38:51,754 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-08 11:38:52,392 WARN L188 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2019-09-08 11:38:52,812 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2019-09-08 11:38:53,044 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:53,392 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:53,719 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:38:54,450 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:38:55,060 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2019-09-08 11:38:55,236 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 44 [2019-09-08 11:38:55,488 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2019-09-08 11:38:56,691 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:38:57,315 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2019-09-08 11:38:57,706 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:38:58,171 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:39:00,602 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2019-09-08 11:39:02,879 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:39:03,232 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:39:03,441 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:39:03,908 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2019-09-08 11:39:04,289 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2019-09-08 11:39:04,805 WARN L188 SmtUtils]: Spent 464.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:39:05,086 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:39:05,391 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 57 [2019-09-08 11:39:05,635 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-08 11:39:06,356 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 49 [2019-09-08 11:39:06,775 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2019-09-08 11:39:06,951 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:39:07,400 WARN L188 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:39:07,764 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2019-09-08 11:39:08,022 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:39:08,394 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:39:08,905 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:39:09,279 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:39:09,665 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-08 11:39:09,878 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:39:10,173 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 49 [2019-09-08 11:39:10,355 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-09-08 11:39:11,180 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 52 [2019-09-08 11:39:11,487 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-08 11:39:11,836 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2019-09-08 11:39:19,778 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 52 [2019-09-08 11:39:20,072 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2019-09-08 11:39:20,913 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:39:29,497 WARN L188 SmtUtils]: Spent 4.18 s on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:39:41,210 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:39:53,813 WARN L188 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-08 11:40:28,329 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 43 [2019-09-08 11:40:28,576 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:40:36,875 WARN L188 SmtUtils]: Spent 4.06 s on a formula simplification that was a NOOP. DAG size: 46 [2019-09-08 11:40:41,400 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:40:43,642 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2019-09-08 11:40:46,720 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 58 [2019-09-08 11:40:49,152 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2019-09-08 11:40:55,574 WARN L188 SmtUtils]: Spent 2.06 s on a formula simplification that was a NOOP. DAG size: 53 [2019-09-08 11:41:01,163 WARN L188 SmtUtils]: Spent 2.05 s on a formula simplification that was a NOOP. DAG size: 49 [2019-09-08 11:41:16,182 WARN L188 SmtUtils]: Spent 4.52 s on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:41:20,593 WARN L188 SmtUtils]: Spent 4.34 s on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:41:27,464 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:41:28,356 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:41:28,836 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 80 [2019-09-08 11:41:43,624 WARN L188 SmtUtils]: Spent 2.30 s on a formula simplification that was a NOOP. DAG size: 56 [2019-09-08 11:41:52,884 WARN L188 SmtUtils]: Spent 4.50 s on a formula simplification. DAG size of input: 92 DAG size of output: 66 [2019-09-08 11:42:00,176 WARN L188 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-08 11:42:11,633 WARN L188 SmtUtils]: Spent 7.18 s on a formula simplification. DAG size of input: 89 DAG size of output: 71 [2019-09-08 11:42:22,168 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:42:54,678 WARN L188 SmtUtils]: Spent 6.21 s on a formula simplification. DAG size of input: 97 DAG size of output: 71 [2019-09-08 11:43:04,058 WARN L188 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2019-09-08 11:43:05,342 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:43:11,652 WARN L188 SmtUtils]: Spent 6.23 s on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2019-09-08 11:43:15,208 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:43:24,178 WARN L188 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:43:57,590 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 47 [2019-09-08 11:44:55,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:44:55,811 INFO L93 Difference]: Finished difference Result 270397 states and 346755 transitions. [2019-09-08 11:44:55,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 173 states. [2019-09-08 11:44:55,811 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 104 [2019-09-08 11:44:55,811 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:44:56,134 INFO L225 Difference]: With dead ends: 270397 [2019-09-08 11:44:56,134 INFO L226 Difference]: Without dead ends: 224789 [2019-09-08 11:44:56,231 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 288 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 191 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14467 ImplicationChecksByTransitivity, 155.5s TimeCoverageRelationStatistics Valid=5100, Invalid=31931, Unknown=25, NotChecked=0, Total=37056 [2019-09-08 11:44:56,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224789 states. [2019-09-08 11:45:19,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224789 to 58030. [2019-09-08 11:45:19,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58030 states. [2019-09-08 11:45:19,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58030 states to 58030 states and 75261 transitions. [2019-09-08 11:45:19,842 INFO L78 Accepts]: Start accepts. Automaton has 58030 states and 75261 transitions. Word has length 104 [2019-09-08 11:45:19,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:45:19,843 INFO L475 AbstractCegarLoop]: Abstraction has 58030 states and 75261 transitions. [2019-09-08 11:45:19,843 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 11:45:19,843 INFO L276 IsEmpty]: Start isEmpty. Operand 58030 states and 75261 transitions. [2019-09-08 11:45:19,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2019-09-08 11:45:19,850 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:45:19,850 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:45:19,851 INFO L418 AbstractCegarLoop]: === Iteration 34 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:45:19,851 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:45:19,851 INFO L82 PathProgramCache]: Analyzing trace with hash -548552580, now seen corresponding path program 1 times [2019-09-08 11:45:19,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:45:19,851 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:45:19,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:19,852 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:45:19,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:45:19,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:45:19,968 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2019-09-08 11:45:19,968 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:45:19,968 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-08 11:45:19,969 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:45:19,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:45:19,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:45:19,969 INFO L87 Difference]: Start difference. First operand 58030 states and 75261 transitions. Second operand 9 states. [2019-09-08 11:45:55,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:45:55,040 INFO L93 Difference]: Finished difference Result 141005 states and 182610 transitions. [2019-09-08 11:45:55,041 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2019-09-08 11:45:55,041 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 104 [2019-09-08 11:45:55,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:45:55,136 INFO L225 Difference]: With dead ends: 141005 [2019-09-08 11:45:55,136 INFO L226 Difference]: Without dead ends: 83051 [2019-09-08 11:45:55,190 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=106, Invalid=274, Unknown=0, NotChecked=0, Total=380 [2019-09-08 11:45:55,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83051 states. [2019-09-08 11:46:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83051 to 58030. [2019-09-08 11:46:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58030 states. [2019-09-08 11:46:18,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58030 states to 58030 states and 75259 transitions. [2019-09-08 11:46:18,486 INFO L78 Accepts]: Start accepts. Automaton has 58030 states and 75259 transitions. Word has length 104 [2019-09-08 11:46:18,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:46:18,486 INFO L475 AbstractCegarLoop]: Abstraction has 58030 states and 75259 transitions. [2019-09-08 11:46:18,486 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:46:18,486 INFO L276 IsEmpty]: Start isEmpty. Operand 58030 states and 75259 transitions. [2019-09-08 11:46:18,492 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2019-09-08 11:46:18,493 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:46:18,493 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:46:18,493 INFO L418 AbstractCegarLoop]: === Iteration 35 === [mainErr4ASSERT_VIOLATIONERROR_FUNCTION, mainErr6ASSERT_VIOLATIONERROR_FUNCTION, mainErr1ASSERT_VIOLATIONERROR_FUNCTION, mainErr0ASSERT_VIOLATIONERROR_FUNCTION, mainErr5ASSERT_VIOLATIONERROR_FUNCTION, mainErr3ASSERT_VIOLATIONERROR_FUNCTION, mainErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:46:18,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:46:18,494 INFO L82 PathProgramCache]: Analyzing trace with hash 10502524, now seen corresponding path program 1 times [2019-09-08 11:46:18,494 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:46:18,494 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:46:18,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:18,495 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:18,495 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:46:18,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:18,786 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 7 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:18,786 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:46:18,786 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:46:18,797 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:46:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:46:18,907 INFO L256 TraceCheckSpWp]: Trace formula consists of 777 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 11:46:18,911 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:46:19,244 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:46:19,470 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 9 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:46:19,474 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:46:19,474 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 12] total 26 [2019-09-08 11:46:19,475 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 11:46:19,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 11:46:19,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=585, Unknown=0, NotChecked=0, Total=650 [2019-09-08 11:46:19,475 INFO L87 Difference]: Start difference. First operand 58030 states and 75259 transitions. Second operand 26 states. [2019-09-08 11:46:23,229 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:46:23,421 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:46:23,633 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:46:23,912 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:46:24,117 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:46:24,643 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 11:46:25,773 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:46:26,273 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 73 [2019-09-08 11:46:26,922 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:46:29,249 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2019-09-08 11:46:29,562 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:46:29,742 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:46:30,977 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:46:31,676 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:46:32,126 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:46:32,716 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:46:32,947 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 11:46:33,536 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:46:33,912 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-08 11:46:34,112 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 11:46:34,971 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:46:36,040 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 11:46:36,601 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-08 11:46:37,942 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 11:46:38,172 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:46:39,521 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-08 11:46:39,766 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-08 11:46:40,619 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:46:40,844 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:46:41,171 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-08 11:46:41,395 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:46:41,679 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:46:43,883 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-08 11:46:44,213 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:46:44,520 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:46:44,841 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2019-09-08 11:46:45,169 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:46:45,490 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-08 11:46:45,742 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:46:45,998 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:46:46,182 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:46:48,631 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2019-09-08 11:46:49,070 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:46:49,388 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:46:49,711 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2019-09-08 11:46:50,145 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2019-09-08 11:46:50,627 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67