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.BOUNDED-6.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 11:26:08,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 11:26:08,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 11:26:08,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-08 11:26:08,760 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-08 11:26:08,761 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-08 11:26:08,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-08 11:26:08,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-08 11:26:08,765 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-08 11:26:08,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-08 11:26:08,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-08 11:26:08,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-08 11:26:08,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 11:26:08,769 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 11:26:08,770 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 11:26:08,771 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 11:26:08,772 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 11:26:08,773 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 11:26:08,775 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 11:26:08,776 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 11:26:08,778 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 11:26:08,779 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 11:26:08,780 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 11:26:08,781 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 11:26:08,783 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 11:26:08,786 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 11:26:08,786 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 11:26:08,787 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 11:26:08,788 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 11:26:08,789 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 11:26:08,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 11:26:08,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 11:26:08,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 11:26:08,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 11:26:08,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 11:26:08,792 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 11:26:08,793 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 11:26:08,807 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 11:26:08,807 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 11:26:08,808 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 11:26:08,809 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 11:26:08,809 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 11:26:08,809 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 11:26:08,809 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 11:26:08,809 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 11:26:08,810 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 11:26:08,810 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 11:26:08,810 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 11:26:08,810 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 11:26:08,810 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 11:26:08,811 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 11:26:08,811 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 11:26:08,811 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 11:26:08,811 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 11:26:08,811 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 11:26:08,812 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 11:26:08,812 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 11:26:08,812 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 11:26:08,812 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:26:08,813 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 11:26:08,813 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 11:26:08,813 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 11:26:08,813 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 11:26:08,813 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 11:26:08,813 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 11:26:08,814 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 11:26:08,840 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 11:26:08,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 11:26:08,855 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 11:26:08,857 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 11:26:08,857 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 11:26:08,858 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:26:08,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/325e31222/daf691c606314ef59dd2638e726046ce/FLAG32f141268 [2019-09-08 11:26:09,406 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 11:26:09,408 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:26:09,421 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/325e31222/daf691c606314ef59dd2638e726046ce/FLAG32f141268 [2019-09-08 11:26:09,725 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/325e31222/daf691c606314ef59dd2638e726046ce [2019-09-08 11:26:09,735 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 11:26:09,737 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 11:26:09,741 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 11:26:09,741 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 11:26:09,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 11:26:09,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:26:09" (1/1) ... [2019-09-08 11:26:09,749 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47e21f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:09, skipping insertion in model container [2019-09-08 11:26:09,749 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:26:09" (1/1) ... [2019-09-08 11:26:09,756 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 11:26:09,809 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 11:26:10,040 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:26:10,053 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 11:26:10,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:26:10,236 INFO L192 MainTranslator]: Completed translation [2019-09-08 11:26:10,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10 WrapperNode [2019-09-08 11:26:10,237 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 11:26:10,238 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 11:26:10,238 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 11:26:10,238 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 11:26:10,249 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,249 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,257 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,258 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,267 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,274 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,277 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (1/1) ... [2019-09-08 11:26:10,281 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 11:26:10,282 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 11:26:10,282 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 11:26:10,282 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 11:26:10,283 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (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 11:26:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 11:26:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 11:26:10,345 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 11:26:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 11:26:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 11:26:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 11:26:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 11:26:10,346 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 11:26:10,347 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 11:26:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 11:26:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 11:26:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 11:26:10,348 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 11:26:10,882 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 11:26:10,882 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 11:26:10,884 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:26:10 BoogieIcfgContainer [2019-09-08 11:26:10,884 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 11:26:10,885 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 11:26:10,885 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 11:26:10,888 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 11:26:10,889 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:26:09" (1/3) ... [2019-09-08 11:26:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a31568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:26:10, skipping insertion in model container [2019-09-08 11:26:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:26:10" (2/3) ... [2019-09-08 11:26:10,890 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a31568c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:26:10, skipping insertion in model container [2019-09-08 11:26:10,890 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:26:10" (3/3) ... [2019-09-08 11:26:10,892 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.3.1.ufo.BOUNDED-6.pals.c.v+cfa-reducer.c [2019-09-08 11:26:10,906 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 11:26:10,914 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 11:26:10,930 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 11:26:10,961 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 11:26:10,962 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 11:26:10,962 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 11:26:10,962 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 11:26:10,963 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 11:26:10,963 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 11:26:10,963 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 11:26:10,963 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 11:26:10,963 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 11:26:10,980 INFO L276 IsEmpty]: Start isEmpty. Operand 67 states. [2019-09-08 11:26:10,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2019-09-08 11:26:10,986 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:10,987 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] [2019-09-08 11:26:10,989 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:10,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:10,993 INFO L82 PathProgramCache]: Analyzing trace with hash -427904680, now seen corresponding path program 1 times [2019-09-08 11:26:10,994 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:10,995 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:11,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,046 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:11,046 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:11,319 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 11:26:11,322 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:11,322 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:26:11,327 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:26:11,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:26:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:26:11,339 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 3 states. [2019-09-08 11:26:11,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:11,409 INFO L93 Difference]: Finished difference Result 147 states and 231 transitions. [2019-09-08 11:26:11,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:26:11,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 40 [2019-09-08 11:26:11,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:11,423 INFO L225 Difference]: With dead ends: 147 [2019-09-08 11:26:11,424 INFO L226 Difference]: Without dead ends: 95 [2019-09-08 11:26:11,429 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 11:26:11,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2019-09-08 11:26:11,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 93. [2019-09-08 11:26:11,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2019-09-08 11:26:11,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 134 transitions. [2019-09-08 11:26:11,484 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 134 transitions. Word has length 40 [2019-09-08 11:26:11,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:11,484 INFO L475 AbstractCegarLoop]: Abstraction has 93 states and 134 transitions. [2019-09-08 11:26:11,484 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:26:11,485 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 134 transitions. [2019-09-08 11:26:11,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-09-08 11:26:11,486 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:11,486 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] [2019-09-08 11:26:11,487 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:11,487 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:11,487 INFO L82 PathProgramCache]: Analyzing trace with hash -1893549176, now seen corresponding path program 1 times [2019-09-08 11:26:11,488 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:11,488 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:11,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,490 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:11,490 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:11,650 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 11:26:11,650 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:11,651 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:26:11,653 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:26:11,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:26:11,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:26:11,654 INFO L87 Difference]: Start difference. First operand 93 states and 134 transitions. Second operand 3 states. [2019-09-08 11:26:11,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:11,712 INFO L93 Difference]: Finished difference Result 217 states and 330 transitions. [2019-09-08 11:26:11,713 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:26:11,713 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 41 [2019-09-08 11:26:11,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:11,716 INFO L225 Difference]: With dead ends: 217 [2019-09-08 11:26:11,716 INFO L226 Difference]: Without dead ends: 147 [2019-09-08 11:26:11,718 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 11:26:11,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 147 states. [2019-09-08 11:26:11,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 147 to 145. [2019-09-08 11:26:11,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 145 states. [2019-09-08 11:26:11,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 216 transitions. [2019-09-08 11:26:11,757 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 216 transitions. Word has length 41 [2019-09-08 11:26:11,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:11,758 INFO L475 AbstractCegarLoop]: Abstraction has 145 states and 216 transitions. [2019-09-08 11:26:11,758 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:26:11,758 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 216 transitions. [2019-09-08 11:26:11,760 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2019-09-08 11:26:11,760 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:11,760 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] [2019-09-08 11:26:11,761 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:11,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:11,761 INFO L82 PathProgramCache]: Analyzing trace with hash -1082568320, now seen corresponding path program 1 times [2019-09-08 11:26:11,761 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:11,762 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:11,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,765 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:11,765 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:11,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:11,889 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 11:26:11,890 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:11,890 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:26:11,891 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:26:11,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:26:11,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:26:11,891 INFO L87 Difference]: Start difference. First operand 145 states and 216 transitions. Second operand 3 states. [2019-09-08 11:26:11,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:11,968 INFO L93 Difference]: Finished difference Result 357 states and 550 transitions. [2019-09-08 11:26:11,972 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:26:11,973 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 42 [2019-09-08 11:26:11,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:11,976 INFO L225 Difference]: With dead ends: 357 [2019-09-08 11:26:11,976 INFO L226 Difference]: Without dead ends: 235 [2019-09-08 11:26:11,979 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 11:26:11,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2019-09-08 11:26:12,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 233. [2019-09-08 11:26:12,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:26:12,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 352 transitions. [2019-09-08 11:26:12,009 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 352 transitions. Word has length 42 [2019-09-08 11:26:12,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:12,010 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 352 transitions. [2019-09-08 11:26:12,010 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:26:12,010 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 352 transitions. [2019-09-08 11:26:12,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:26:12,011 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:12,012 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] [2019-09-08 11:26:12,012 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:12,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:12,012 INFO L82 PathProgramCache]: Analyzing trace with hash 304274593, now seen corresponding path program 1 times [2019-09-08 11:26:12,013 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:12,013 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:12,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:12,015 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:12,096 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 11:26:12,097 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:12,097 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:12,097 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:12,098 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:12,098 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:12,098 INFO L87 Difference]: Start difference. First operand 233 states and 352 transitions. Second operand 5 states. [2019-09-08 11:26:12,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:12,230 INFO L93 Difference]: Finished difference Result 443 states and 681 transitions. [2019-09-08 11:26:12,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:26:12,230 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:26:12,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:12,233 INFO L225 Difference]: With dead ends: 443 [2019-09-08 11:26:12,233 INFO L226 Difference]: Without dead ends: 233 [2019-09-08 11:26:12,235 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 11:26:12,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-08 11:26:12,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-09-08 11:26:12,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:26:12,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 348 transitions. [2019-09-08 11:26:12,262 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 348 transitions. Word has length 43 [2019-09-08 11:26:12,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:12,262 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 348 transitions. [2019-09-08 11:26:12,263 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:12,263 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 348 transitions. [2019-09-08 11:26:12,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:26:12,264 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:12,264 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] [2019-09-08 11:26:12,265 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:12,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:12,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1578142598, now seen corresponding path program 1 times [2019-09-08 11:26:12,265 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:12,265 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:12,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:12,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:12,375 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 11:26:12,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:12,376 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:12,376 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:12,377 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:12,377 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:12,378 INFO L87 Difference]: Start difference. First operand 233 states and 348 transitions. Second operand 5 states. [2019-09-08 11:26:12,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:12,514 INFO L93 Difference]: Finished difference Result 443 states and 673 transitions. [2019-09-08 11:26:12,514 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:26:12,514 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:26:12,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:12,518 INFO L225 Difference]: With dead ends: 443 [2019-09-08 11:26:12,518 INFO L226 Difference]: Without dead ends: 233 [2019-09-08 11:26:12,521 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 11:26:12,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 233 states. [2019-09-08 11:26:12,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 233 to 233. [2019-09-08 11:26:12,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 233 states. [2019-09-08 11:26:12,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 233 states to 233 states and 344 transitions. [2019-09-08 11:26:12,563 INFO L78 Accepts]: Start accepts. Automaton has 233 states and 344 transitions. Word has length 43 [2019-09-08 11:26:12,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:12,564 INFO L475 AbstractCegarLoop]: Abstraction has 233 states and 344 transitions. [2019-09-08 11:26:12,564 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:12,564 INFO L276 IsEmpty]: Start isEmpty. Operand 233 states and 344 transitions. [2019-09-08 11:26:12,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2019-09-08 11:26:12,568 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:12,568 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] [2019-09-08 11:26:12,568 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:12,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:12,569 INFO L82 PathProgramCache]: Analyzing trace with hash -263887935, now seen corresponding path program 1 times [2019-09-08 11:26:12,569 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:12,569 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:12,571 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,571 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:12,572 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:12,689 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 11:26:12,690 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:12,690 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:12,691 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:12,691 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:12,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:12,691 INFO L87 Difference]: Start difference. First operand 233 states and 344 transitions. Second operand 5 states. [2019-09-08 11:26:12,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:12,858 INFO L93 Difference]: Finished difference Result 1073 states and 1628 transitions. [2019-09-08 11:26:12,859 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:26:12,859 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 43 [2019-09-08 11:26:12,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:12,865 INFO L225 Difference]: With dead ends: 1073 [2019-09-08 11:26:12,865 INFO L226 Difference]: Without dead ends: 863 [2019-09-08 11:26:12,867 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:26:12,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 863 states. [2019-09-08 11:26:12,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 863 to 649. [2019-09-08 11:26:12,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 649 states. [2019-09-08 11:26:12,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 649 states to 649 states and 968 transitions. [2019-09-08 11:26:12,945 INFO L78 Accepts]: Start accepts. Automaton has 649 states and 968 transitions. Word has length 43 [2019-09-08 11:26:12,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:12,945 INFO L475 AbstractCegarLoop]: Abstraction has 649 states and 968 transitions. [2019-09-08 11:26:12,946 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:12,946 INFO L276 IsEmpty]: Start isEmpty. Operand 649 states and 968 transitions. [2019-09-08 11:26:12,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 11:26:12,952 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:12,953 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] [2019-09-08 11:26:12,953 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:12,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:12,954 INFO L82 PathProgramCache]: Analyzing trace with hash -1086429188, now seen corresponding path program 1 times [2019-09-08 11:26:12,954 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:12,955 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:12,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,962 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:12,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:12,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:13,031 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 11:26:13,032 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:13,032 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:26:13,032 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:26:13,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:26:13,033 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:26:13,033 INFO L87 Difference]: Start difference. First operand 649 states and 968 transitions. Second operand 3 states. [2019-09-08 11:26:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:13,117 INFO L93 Difference]: Finished difference Result 1575 states and 2360 transitions. [2019-09-08 11:26:13,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:26:13,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2019-09-08 11:26:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:13,123 INFO L225 Difference]: With dead ends: 1575 [2019-09-08 11:26:13,123 INFO L226 Difference]: Without dead ends: 949 [2019-09-08 11:26:13,125 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 2 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 11:26:13,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 949 states. [2019-09-08 11:26:13,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 949 to 947. [2019-09-08 11:26:13,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 947 states. [2019-09-08 11:26:13,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 947 states to 947 states and 1394 transitions. [2019-09-08 11:26:13,194 INFO L78 Accepts]: Start accepts. Automaton has 947 states and 1394 transitions. Word has length 45 [2019-09-08 11:26:13,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:13,194 INFO L475 AbstractCegarLoop]: Abstraction has 947 states and 1394 transitions. [2019-09-08 11:26:13,195 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:26:13,195 INFO L276 IsEmpty]: Start isEmpty. Operand 947 states and 1394 transitions. [2019-09-08 11:26:13,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-09-08 11:26:13,195 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:13,196 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] [2019-09-08 11:26:13,196 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:13,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:13,196 INFO L82 PathProgramCache]: Analyzing trace with hash -1066379845, now seen corresponding path program 1 times [2019-09-08 11:26:13,196 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:13,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:13,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:13,198 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:13,198 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:13,365 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 11:26:13,366 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:13,366 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:13,366 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:13,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:13,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:13,367 INFO L87 Difference]: Start difference. First operand 947 states and 1394 transitions. Second operand 5 states. [2019-09-08 11:26:13,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:13,614 INFO L93 Difference]: Finished difference Result 2485 states and 3669 transitions. [2019-09-08 11:26:13,614 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:26:13,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 45 [2019-09-08 11:26:13,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:13,625 INFO L225 Difference]: With dead ends: 2485 [2019-09-08 11:26:13,625 INFO L226 Difference]: Without dead ends: 1563 [2019-09-08 11:26:13,629 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 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 11:26:13,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1563 states. [2019-09-08 11:26:13,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1563 to 1255. [2019-09-08 11:26:13,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1255 states. [2019-09-08 11:26:13,738 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1255 states to 1255 states and 1826 transitions. [2019-09-08 11:26:13,739 INFO L78 Accepts]: Start accepts. Automaton has 1255 states and 1826 transitions. Word has length 45 [2019-09-08 11:26:13,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:13,741 INFO L475 AbstractCegarLoop]: Abstraction has 1255 states and 1826 transitions. [2019-09-08 11:26:13,741 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:13,741 INFO L276 IsEmpty]: Start isEmpty. Operand 1255 states and 1826 transitions. [2019-09-08 11:26:13,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-08 11:26:13,743 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:13,743 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] [2019-09-08 11:26:13,743 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:13,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:13,746 INFO L82 PathProgramCache]: Analyzing trace with hash 1300053745, now seen corresponding path program 1 times [2019-09-08 11:26:13,746 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:13,746 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:13,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:13,748 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:13,748 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:13,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:13,847 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 11:26:13,848 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:13,848 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:13,848 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:13,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:13,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:13,849 INFO L87 Difference]: Start difference. First operand 1255 states and 1826 transitions. Second operand 5 states. [2019-09-08 11:26:14,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:14,108 INFO L93 Difference]: Finished difference Result 2403 states and 3473 transitions. [2019-09-08 11:26:14,109 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:26:14,109 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 46 [2019-09-08 11:26:14,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:14,121 INFO L225 Difference]: With dead ends: 2403 [2019-09-08 11:26:14,121 INFO L226 Difference]: Without dead ends: 2401 [2019-09-08 11:26:14,123 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:26:14,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2401 states. [2019-09-08 11:26:14,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2401 to 1335. [2019-09-08 11:26:14,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1335 states. [2019-09-08 11:26:14,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1335 states to 1335 states and 1902 transitions. [2019-09-08 11:26:14,276 INFO L78 Accepts]: Start accepts. Automaton has 1335 states and 1902 transitions. Word has length 46 [2019-09-08 11:26:14,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:14,276 INFO L475 AbstractCegarLoop]: Abstraction has 1335 states and 1902 transitions. [2019-09-08 11:26:14,276 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:14,276 INFO L276 IsEmpty]: Start isEmpty. Operand 1335 states and 1902 transitions. [2019-09-08 11:26:14,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:26:14,279 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:14,279 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:26:14,279 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:14,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:14,280 INFO L82 PathProgramCache]: Analyzing trace with hash 619866378, now seen corresponding path program 1 times [2019-09-08 11:26:14,280 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:14,280 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:14,282 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:14,282 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:14,283 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:14,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:14,381 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:14,382 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:26:14,382 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 11:26:14,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:26:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:14,509 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 11:26:14,520 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:26:14,615 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [MP z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (2)] Exception during sending of exit command (exit): Broken pipe [2019-09-08 11:26:14,623 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:26:14,624 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 11:26:14,626 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:26:14,629 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:26:14,629 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:26:14,629 INFO L87 Difference]: Start difference. First operand 1335 states and 1902 transitions. Second operand 8 states. [2019-09-08 11:26:15,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:15,319 INFO L93 Difference]: Finished difference Result 3659 states and 5314 transitions. [2019-09-08 11:26:15,319 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-09-08 11:26:15,319 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-09-08 11:26:15,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:15,334 INFO L225 Difference]: With dead ends: 3659 [2019-09-08 11:26:15,335 INFO L226 Difference]: Without dead ends: 2673 [2019-09-08 11:26:15,338 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2019-09-08 11:26:15,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2673 states. [2019-09-08 11:26:15,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2673 to 1987. [2019-09-08 11:26:15,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1987 states. [2019-09-08 11:26:15,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1987 states to 1987 states and 2842 transitions. [2019-09-08 11:26:15,550 INFO L78 Accepts]: Start accepts. Automaton has 1987 states and 2842 transitions. Word has length 64 [2019-09-08 11:26:15,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:15,551 INFO L475 AbstractCegarLoop]: Abstraction has 1987 states and 2842 transitions. [2019-09-08 11:26:15,551 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:26:15,551 INFO L276 IsEmpty]: Start isEmpty. Operand 1987 states and 2842 transitions. [2019-09-08 11:26:15,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:26:15,552 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:15,552 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:26:15,553 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:15,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:15,553 INFO L82 PathProgramCache]: Analyzing trace with hash 596121156, now seen corresponding path program 1 times [2019-09-08 11:26:15,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:15,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:15,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:15,556 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:15,556 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:15,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:15,655 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 11:26:15,655 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:26:15,655 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:26:15,656 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:26:15,656 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:26:15,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:26:15,656 INFO L87 Difference]: Start difference. First operand 1987 states and 2842 transitions. Second operand 5 states. [2019-09-08 11:26:16,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:16,035 INFO L93 Difference]: Finished difference Result 4303 states and 6250 transitions. [2019-09-08 11:26:16,035 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:26:16,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2019-09-08 11:26:16,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:16,053 INFO L225 Difference]: With dead ends: 4303 [2019-09-08 11:26:16,053 INFO L226 Difference]: Without dead ends: 3317 [2019-09-08 11:26:16,057 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 11:26:16,061 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3317 states. [2019-09-08 11:26:16,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3317 to 2639. [2019-09-08 11:26:16,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2639 states. [2019-09-08 11:26:16,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2639 states to 2639 states and 3782 transitions. [2019-09-08 11:26:16,323 INFO L78 Accepts]: Start accepts. Automaton has 2639 states and 3782 transitions. Word has length 64 [2019-09-08 11:26:16,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:16,323 INFO L475 AbstractCegarLoop]: Abstraction has 2639 states and 3782 transitions. [2019-09-08 11:26:16,324 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:26:16,324 INFO L276 IsEmpty]: Start isEmpty. Operand 2639 states and 3782 transitions. [2019-09-08 11:26:16,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-09-08 11:26:16,326 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:16,326 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:26:16,327 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:16,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:16,327 INFO L82 PathProgramCache]: Analyzing trace with hash 223595262, now seen corresponding path program 1 times [2019-09-08 11:26:16,327 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:16,328 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:16,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:16,329 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:16,329 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:16,417 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:16,418 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:26:16,418 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 11:26:16,454 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:16,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:16,580 INFO L256 TraceCheckSpWp]: Trace formula consists of 495 conjuncts, 4 conjunts are in the unsatisfiable core [2019-09-08 11:26:16,587 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:26:16,699 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:26:16,704 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:26:16,705 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 8 [2019-09-08 11:26:16,705 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:26:16,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:26:16,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:26:16,706 INFO L87 Difference]: Start difference. First operand 2639 states and 3782 transitions. Second operand 8 states. [2019-09-08 11:26:17,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:17,593 INFO L93 Difference]: Finished difference Result 5887 states and 8598 transitions. [2019-09-08 11:26:17,593 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-09-08 11:26:17,594 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 64 [2019-09-08 11:26:17,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:17,630 INFO L225 Difference]: With dead ends: 5887 [2019-09-08 11:26:17,630 INFO L226 Difference]: Without dead ends: 5213 [2019-09-08 11:26:17,634 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2019-09-08 11:26:17,643 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5213 states. [2019-09-08 11:26:17,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5213 to 3183. [2019-09-08 11:26:17,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3183 states. [2019-09-08 11:26:17,964 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3183 states to 3183 states and 4574 transitions. [2019-09-08 11:26:17,965 INFO L78 Accepts]: Start accepts. Automaton has 3183 states and 4574 transitions. Word has length 64 [2019-09-08 11:26:17,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:17,965 INFO L475 AbstractCegarLoop]: Abstraction has 3183 states and 4574 transitions. [2019-09-08 11:26:17,965 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:26:17,965 INFO L276 IsEmpty]: Start isEmpty. Operand 3183 states and 4574 transitions. [2019-09-08 11:26:17,967 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-08 11:26:17,967 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:17,967 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] [2019-09-08 11:26:17,968 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:17,968 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:17,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1815695605, now seen corresponding path program 1 times [2019-09-08 11:26:17,968 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:17,968 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:17,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:17,969 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:17,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:17,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:18,042 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:26:18,043 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:26:18,043 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 11:26:18,062 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:18,146 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:26:18,158 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:26:18,214 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:18,225 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:26:18,225 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 7 [2019-09-08 11:26:18,226 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-08 11:26:18,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-08 11:26:18,227 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:26:18,227 INFO L87 Difference]: Start difference. First operand 3183 states and 4574 transitions. Second operand 7 states. [2019-09-08 11:26:18,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:18,956 INFO L93 Difference]: Finished difference Result 8181 states and 11793 transitions. [2019-09-08 11:26:18,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 11:26:18,956 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-08 11:26:18,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:18,990 INFO L225 Difference]: With dead ends: 8181 [2019-09-08 11:26:18,990 INFO L226 Difference]: Without dead ends: 5123 [2019-09-08 11:26:19,001 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=22, Unknown=0, NotChecked=0, Total=42 [2019-09-08 11:26:19,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5123 states. [2019-09-08 11:26:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5123 to 5099. [2019-09-08 11:26:19,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5099 states. [2019-09-08 11:26:19,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5099 states to 5099 states and 7170 transitions. [2019-09-08 11:26:19,628 INFO L78 Accepts]: Start accepts. Automaton has 5099 states and 7170 transitions. Word has length 65 [2019-09-08 11:26:19,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:19,629 INFO L475 AbstractCegarLoop]: Abstraction has 5099 states and 7170 transitions. [2019-09-08 11:26:19,629 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-08 11:26:19,629 INFO L276 IsEmpty]: Start isEmpty. Operand 5099 states and 7170 transitions. [2019-09-08 11:26:19,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 11:26:19,630 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:19,630 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] [2019-09-08 11:26:19,631 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:19,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:19,631 INFO L82 PathProgramCache]: Analyzing trace with hash 2112957636, now seen corresponding path program 1 times [2019-09-08 11:26:19,631 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:19,631 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:19,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:19,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:19,633 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:19,902 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:19,905 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:26:19,905 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 11:26:19,934 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:20,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:20,022 INFO L256 TraceCheckSpWp]: Trace formula consists of 497 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:26:20,035 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:26:20,167 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:26:20,454 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:20,466 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:26:20,467 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:26:20,467 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:26:20,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:26:20,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=233, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:26:20,469 INFO L87 Difference]: Start difference. First operand 5099 states and 7170 transitions. Second operand 17 states. [2019-09-08 11:26:22,360 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 37 [2019-09-08 11:26:22,622 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 44 [2019-09-08 11:26:36,911 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2019-09-08 11:26:37,843 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 38 [2019-09-08 11:26:37,990 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-08 11:26:45,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:26:45,537 INFO L93 Difference]: Finished difference Result 83082 states and 114297 transitions. [2019-09-08 11:26:45,538 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 214 states. [2019-09-08 11:26:45,538 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 66 [2019-09-08 11:26:45,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:26:45,749 INFO L225 Difference]: With dead ends: 83082 [2019-09-08 11:26:45,749 INFO L226 Difference]: Without dead ends: 78008 [2019-09-08 11:26:45,799 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 226 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22890 ImplicationChecksByTransitivity, 14.8s TimeCoverageRelationStatistics Valid=6149, Invalid=45607, Unknown=0, NotChecked=0, Total=51756 [2019-09-08 11:26:45,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78008 states. [2019-09-08 11:26:49,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78008 to 24409. [2019-09-08 11:26:49,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24409 states. [2019-09-08 11:26:49,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24409 states to 24409 states and 33558 transitions. [2019-09-08 11:26:49,123 INFO L78 Accepts]: Start accepts. Automaton has 24409 states and 33558 transitions. Word has length 66 [2019-09-08 11:26:49,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:26:49,123 INFO L475 AbstractCegarLoop]: Abstraction has 24409 states and 33558 transitions. [2019-09-08 11:26:49,123 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:26:49,123 INFO L276 IsEmpty]: Start isEmpty. Operand 24409 states and 33558 transitions. [2019-09-08 11:26:49,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-08 11:26:49,125 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:26:49,126 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:26:49,126 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:26:49,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:26:49,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1295369161, now seen corresponding path program 1 times [2019-09-08 11:26:49,126 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:26:49,127 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:26:49,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:49,128 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:26:49,128 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:26:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:49,305 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:49,305 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:26:49,306 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 11:26:49,320 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:26:49,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:26:49,392 INFO L256 TraceCheckSpWp]: Trace formula consists of 499 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:26:49,395 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:26:49,505 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:26:49,706 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:26:49,719 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:26:49,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:26:49,722 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:26:49,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:26:49,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:26:49,723 INFO L87 Difference]: Start difference. First operand 24409 states and 33558 transitions. Second operand 17 states. [2019-09-08 11:27:07,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:27:07,410 INFO L93 Difference]: Finished difference Result 158151 states and 214121 transitions. [2019-09-08 11:27:07,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-08 11:27:07,410 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 66 [2019-09-08 11:27:07,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:27:07,732 INFO L225 Difference]: With dead ends: 158151 [2019-09-08 11:27:07,732 INFO L226 Difference]: Without dead ends: 133767 [2019-09-08 11:27:07,810 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 59 SyntacticMatches, 1 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 694 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=716, Invalid=2146, Unknown=0, NotChecked=0, Total=2862 [2019-09-08 11:27:07,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133767 states. [2019-09-08 11:27:16,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133767 to 60721. [2019-09-08 11:27:16,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 60721 states. [2019-09-08 11:27:16,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60721 states to 60721 states and 83011 transitions. [2019-09-08 11:27:16,916 INFO L78 Accepts]: Start accepts. Automaton has 60721 states and 83011 transitions. Word has length 66 [2019-09-08 11:27:16,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:27:16,916 INFO L475 AbstractCegarLoop]: Abstraction has 60721 states and 83011 transitions. [2019-09-08 11:27:16,916 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:27:16,917 INFO L276 IsEmpty]: Start isEmpty. Operand 60721 states and 83011 transitions. [2019-09-08 11:27:16,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:27:16,920 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:27:16,920 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:27:16,920 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:27:16,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:27:16,921 INFO L82 PathProgramCache]: Analyzing trace with hash -401806685, now seen corresponding path program 1 times [2019-09-08 11:27:16,921 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:27:16,921 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:27:16,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:27:16,922 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:27:16,922 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:27:16,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:27:17,910 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:27:17,911 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:27:17,911 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:27:17,923 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:27:17,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:27:17,989 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 38 conjunts are in the unsatisfiable core [2019-09-08 11:27:17,992 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:27:18,307 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:27:18,673 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:27:18,914 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 38 [2019-09-08 11:27:19,427 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:27:19,782 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:27:19,786 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:27:19,786 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19] total 36 [2019-09-08 11:27:19,787 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:27:19,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:27:19,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=106, Invalid=1154, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:27:19,788 INFO L87 Difference]: Start difference. First operand 60721 states and 83011 transitions. Second operand 36 states. [2019-09-08 11:27:20,912 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 31 [2019-09-08 11:27:21,151 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-09-08 11:27:21,395 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 46 [2019-09-08 11:27:21,785 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2019-09-08 11:27:22,168 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 56 [2019-09-08 11:27:22,439 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 53 [2019-09-08 11:27:22,764 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 56 [2019-09-08 11:27:23,206 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 67 [2019-09-08 11:27:23,624 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 67 [2019-09-08 11:27:23,939 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:27:24,290 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:27:24,691 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-08 11:27:25,434 WARN L188 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:27:26,026 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-09-08 11:27:26,411 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:27:26,652 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 28 [2019-09-08 11:27:26,877 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 50 [2019-09-08 11:27:27,172 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 60 [2019-09-08 11:27:27,518 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2019-09-08 11:27:27,956 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:27:28,186 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2019-09-08 11:27:28,472 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:27:28,893 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2019-09-08 11:27:29,290 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:27:29,645 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2019-09-08 11:27:30,089 WARN L188 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 67 [2019-09-08 11:27:30,330 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 54 [2019-09-08 11:27:30,608 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2019-09-08 11:27:30,956 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:27:31,245 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-08 11:27:31,639 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 67 [2019-09-08 11:27:32,081 WARN L188 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-08 11:27:32,398 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:27:32,731 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:27:33,209 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 81 [2019-09-08 11:27:33,740 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-09-08 11:27:34,174 WARN L188 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 67 [2019-09-08 11:27:34,560 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 77 [2019-09-08 11:27:34,969 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2019-09-08 11:27:35,154 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2019-09-08 11:27:35,421 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 41 [2019-09-08 11:27:35,835 WARN L188 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-08 11:27:36,149 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:27:36,658 WARN L188 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 69 [2019-09-08 11:27:36,918 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-09-08 11:27:37,220 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 63 [2019-09-08 11:27:37,798 WARN L188 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 89 [2019-09-08 11:27:38,211 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 85 [2019-09-08 11:27:38,474 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 39 [2019-09-08 11:27:38,657 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 37 [2019-09-08 11:27:38,982 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 68 [2019-09-08 11:27:39,186 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:27:39,598 WARN L188 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2019-09-08 11:27:39,831 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 53 [2019-09-08 11:27:40,183 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2019-09-08 11:27:40,510 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2019-09-08 11:27:40,860 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-08 11:27:41,081 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:27:41,435 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2019-09-08 11:27:41,700 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 59 [2019-09-08 11:27:41,911 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-09-08 11:27:42,151 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:27:42,490 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-08 11:27:42,984 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 62 [2019-09-08 11:27:43,182 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 41 [2019-09-08 11:27:43,433 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:27:43,950 WARN L188 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2019-09-08 11:27:44,348 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2019-09-08 11:27:44,682 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 72 [2019-09-08 11:27:45,020 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 68 [2019-09-08 11:27:45,223 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 11:27:45,666 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 93 [2019-09-08 11:27:45,864 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2019-09-08 11:27:46,414 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2019-09-08 11:27:46,761 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 58 [2019-09-08 11:27:47,327 WARN L188 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-09-08 11:27:47,571 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:27:48,023 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 53 [2019-09-08 11:27:48,370 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2019-09-08 11:27:48,573 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:27:49,058 WARN L188 SmtUtils]: Spent 420.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2019-09-08 11:27:49,329 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-08 11:27:49,643 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 55 [2019-09-08 11:27:49,788 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2019-09-08 11:27:50,264 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2019-09-08 11:27:50,555 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-08 11:27:50,780 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 42 [2019-09-08 11:27:51,009 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:27:51,425 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 37 [2019-09-08 11:27:51,575 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 34 [2019-09-08 11:27:51,818 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 47 [2019-09-08 11:27:52,241 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-08 11:27:52,739 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 62 [2019-09-08 11:27:53,099 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2019-09-08 11:27:53,617 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 80 [2019-09-08 11:27:53,869 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2019-09-08 11:27:54,065 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 38 [2019-09-08 11:27:54,342 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:27:54,746 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 71 [2019-09-08 11:27:55,016 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 49 [2019-09-08 11:27:55,458 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 75 [2019-09-08 11:27:55,905 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2019-09-08 11:27:56,109 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 11:27:56,746 WARN L188 SmtUtils]: Spent 585.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 101 [2019-09-08 11:27:57,148 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2019-09-08 11:27:57,401 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 50 [2019-09-08 11:27:57,751 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 72 [2019-09-08 11:27:57,942 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:27:58,400 WARN L188 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 97 [2019-09-08 11:27:58,593 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:27:58,874 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 48 [2019-09-08 11:27:59,133 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:27:59,338 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 42 [2019-09-08 11:27:59,674 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:27:59,937 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2019-09-08 11:28:00,238 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 53 [2019-09-08 11:28:00,459 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:28:00,716 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 51 [2019-09-08 11:28:01,027 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2019-09-08 11:28:01,596 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2019-09-08 11:28:01,934 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:28:02,245 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 69 [2019-09-08 11:28:02,629 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2019-09-08 11:28:02,887 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 41 [2019-09-08 11:28:03,400 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2019-09-08 11:28:03,611 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 35 [2019-09-08 11:28:03,896 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:28:04,073 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:28:04,481 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 71 [2019-09-08 11:28:04,648 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2019-09-08 11:28:04,955 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2019-09-08 11:28:05,433 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:28:05,773 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:28:06,129 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:28:06,356 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 34 [2019-09-08 11:28:06,572 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:28:06,944 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 63 [2019-09-08 11:28:07,212 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 38 [2019-09-08 11:28:07,385 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2019-09-08 11:28:07,702 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 49 [2019-09-08 11:28:07,923 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 52 [2019-09-08 11:28:08,136 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 47 [2019-09-08 11:28:08,542 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2019-09-08 11:28:08,842 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 53 [2019-09-08 11:28:09,192 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 65 [2019-09-08 11:28:09,581 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:28:09,818 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2019-09-08 11:28:10,187 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:28:10,373 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:28:10,639 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 57 [2019-09-08 11:28:11,002 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 65 [2019-09-08 11:28:11,302 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 61 [2019-09-08 11:28:11,768 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:28:12,109 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 55 [2019-09-08 11:28:12,375 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 53 [2019-09-08 11:28:13,478 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2019-09-08 11:28:13,817 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:28:14,427 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2019-09-08 11:28:14,783 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:28:15,118 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 56 [2019-09-08 11:28:15,545 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:28:16,136 WARN L188 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:28:16,574 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:28:16,879 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:28:17,414 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-08 11:28:17,817 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2019-09-08 11:28:18,138 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:28:18,786 WARN L188 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:28:19,136 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:28:19,537 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:28:20,129 WARN L188 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2019-09-08 11:28:20,411 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:28:20,770 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-08 11:28:21,076 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:28:21,516 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 38 [2019-09-08 11:28:22,008 WARN L188 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2019-09-08 11:28:22,293 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2019-09-08 11:28:22,665 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-09-08 11:28:23,120 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:28:23,697 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:28:24,030 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:28:24,441 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2019-09-08 11:28:24,881 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:28:25,304 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:28:25,501 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 58 [2019-09-08 11:28:25,989 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:28:26,193 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:28:26,449 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:28:26,994 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2019-09-08 11:28:27,328 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2019-09-08 11:28:27,806 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:28:28,136 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 57 [2019-09-08 11:28:28,439 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:28:28,799 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 56 [2019-09-08 11:28:29,185 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:28:29,644 WARN L188 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2019-09-08 11:28:30,207 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:28:30,543 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:28:30,824 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 11:28:31,266 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:28:31,598 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 60 [2019-09-08 11:28:31,983 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2019-09-08 11:28:32,319 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:28:34,324 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:28:34,631 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:28:35,003 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:28:35,449 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:28:35,649 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:28:35,948 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2019-09-08 11:28:36,165 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:28:36,508 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-08 11:28:36,909 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2019-09-08 11:28:37,255 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2019-09-08 11:28:37,906 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2019-09-08 11:28:38,131 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2019-09-08 11:28:38,513 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-09-08 11:28:38,875 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 52 [2019-09-08 11:28:39,412 WARN L188 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:28:39,810 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 71 [2019-09-08 11:28:40,322 WARN L188 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 72 [2019-09-08 11:28:40,910 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2019-09-08 11:28:41,263 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-09-08 11:28:41,512 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 11:28:42,011 WARN L188 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2019-09-08 11:28:42,472 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:28:43,146 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2019-09-08 11:28:43,701 WARN L188 SmtUtils]: Spent 471.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 75 [2019-09-08 11:28:43,988 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:28:44,304 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 44 [2019-09-08 11:28:44,652 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2019-09-08 11:28:44,904 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 46 [2019-09-08 11:28:45,215 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 57 [2019-09-08 11:28:45,554 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2019-09-08 11:28:46,003 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-09-08 11:28:46,509 WARN L188 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:28:46,752 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:28:47,198 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 62 [2019-09-08 11:28:47,529 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 61 [2019-09-08 11:28:47,882 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2019-09-08 11:28:48,164 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:28:48,340 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 38 [2019-09-08 11:28:48,800 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2019-09-08 11:28:49,331 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:28:49,603 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:28:50,011 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2019-09-08 11:28:50,285 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-08 11:28:50,647 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:28:51,032 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2019-09-08 11:28:51,352 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 64 [2019-09-08 11:28:51,755 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 60 [2019-09-08 11:28:52,033 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 52 [2019-09-08 11:28:52,561 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2019-09-08 11:28:53,680 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2019-09-08 11:28:54,009 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 67 [2019-09-08 11:28:54,637 WARN L188 SmtUtils]: Spent 449.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2019-09-08 11:28:55,275 WARN L188 SmtUtils]: Spent 469.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2019-09-08 11:28:55,565 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:28:55,813 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2019-09-08 11:28:56,404 WARN L188 SmtUtils]: Spent 476.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2019-09-08 11:28:56,927 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2019-09-08 11:28:57,346 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:28:58,025 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:28:58,392 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:28:58,664 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:28:59,038 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2019-09-08 11:28:59,286 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:28:59,733 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2019-09-08 11:28:59,960 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2019-09-08 11:29:00,363 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:29:00,681 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 72 [2019-09-08 11:29:01,132 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2019-09-08 11:29:01,589 WARN L188 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 83 [2019-09-08 11:29:01,793 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 49 [2019-09-08 11:29:02,124 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 11:29:02,450 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 65 [2019-09-08 11:29:02,719 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 48 [2019-09-08 11:29:03,157 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 64 [2019-09-08 11:29:03,626 WARN L188 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2019-09-08 11:29:03,802 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:29:04,414 WARN L188 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 85 [2019-09-08 11:29:04,826 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 46 [2019-09-08 11:29:05,528 WARN L188 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:29:06,004 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:29:06,337 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2019-09-08 11:29:06,807 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2019-09-08 11:29:07,066 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 56 [2019-09-08 11:29:07,414 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2019-09-08 11:29:07,880 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 140 DAG size of output: 67 [2019-09-08 11:29:08,115 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2019-09-08 11:29:08,413 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 47 [2019-09-08 11:29:08,912 WARN L188 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 87 [2019-09-08 11:29:09,632 WARN L188 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 75 [2019-09-08 11:29:10,244 WARN L188 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 73 [2019-09-08 11:29:10,834 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 83 [2019-09-08 11:29:11,078 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 11:29:11,282 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:29:11,494 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 11:29:11,891 WARN L188 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:29:12,371 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2019-09-08 11:29:13,058 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2019-09-08 11:29:13,618 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2019-09-08 11:29:13,856 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:29:14,094 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:29:14,448 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:29:14,770 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:29:15,183 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2019-09-08 11:29:15,400 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2019-09-08 11:29:15,727 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 11:29:15,916 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:29:16,229 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:29:16,716 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 60 [2019-09-08 11:29:16,938 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 42 [2019-09-08 11:29:17,426 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2019-09-08 11:29:17,788 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:29:18,102 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 68 [2019-09-08 11:29:18,634 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2019-09-08 11:29:19,140 WARN L188 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2019-09-08 11:29:19,328 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:29:19,721 WARN L188 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-08 11:29:20,063 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:29:20,344 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 63 [2019-09-08 11:29:20,578 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:29:21,016 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:29:21,194 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:29:21,584 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:29:22,405 WARN L188 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:29:22,760 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 61 [2019-09-08 11:29:22,953 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 48 [2019-09-08 11:29:23,292 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 63 [2019-09-08 11:29:23,521 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 42 [2019-09-08 11:29:24,222 WARN L188 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 75 [2019-09-08 11:29:24,456 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 47 [2019-09-08 11:29:24,786 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:29:25,171 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:29:25,580 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2019-09-08 11:29:26,339 WARN L188 SmtUtils]: Spent 637.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 96 [2019-09-08 11:29:26,608 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 51 [2019-09-08 11:29:26,867 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2019-09-08 11:29:27,196 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:29:27,700 WARN L188 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2019-09-08 11:29:28,184 WARN L188 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2019-09-08 11:29:28,581 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 70 [2019-09-08 11:29:28,862 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 57 [2019-09-08 11:29:29,142 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2019-09-08 11:29:29,340 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 52 [2019-09-08 11:29:29,507 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 37 [2019-09-08 11:29:29,723 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 47 [2019-09-08 11:29:30,201 WARN L188 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 87 [2019-09-08 11:29:30,818 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 76 [2019-09-08 11:29:31,338 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 74 [2019-09-08 11:29:31,836 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 84 [2019-09-08 11:29:32,009 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:29:32,168 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-08 11:29:32,503 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2019-09-08 11:29:32,863 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2019-09-08 11:29:33,343 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 91 [2019-09-08 11:29:33,834 WARN L188 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-08 11:29:34,003 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:29:34,406 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:29:34,782 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-08 11:29:35,188 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:29:35,613 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:29:35,944 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2019-09-08 11:29:36,200 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 54 [2019-09-08 11:29:36,697 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2019-09-08 11:29:36,963 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2019-09-08 11:29:37,722 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 76 [2019-09-08 11:29:37,888 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 42 [2019-09-08 11:29:38,143 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:29:38,387 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:29:38,694 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2019-09-08 11:29:39,359 WARN L188 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 95 [2019-09-08 11:29:39,533 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 46 [2019-09-08 11:29:39,776 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:29:40,210 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2019-09-08 11:29:40,752 WARN L188 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 82 [2019-09-08 11:29:41,291 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 60 [2019-09-08 11:29:41,779 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2019-09-08 11:29:42,251 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:29:42,681 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:29:42,938 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:29:43,223 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 32 [2019-09-08 11:29:43,637 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-09-08 11:29:44,020 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 60 [2019-09-08 11:29:44,468 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2019-09-08 11:29:45,260 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 45 [2019-09-08 11:29:45,659 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 50 [2019-09-08 11:29:46,303 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 52 [2019-09-08 11:29:46,664 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:29:46,875 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-08 11:29:47,640 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 35 [2019-09-08 11:29:47,973 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:29:48,335 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-09-08 11:29:49,657 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:29:50,161 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 41 [2019-09-08 11:29:50,450 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:29:50,773 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:29:51,218 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-08 11:29:51,720 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 41 [2019-09-08 11:29:52,373 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:29:52,529 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 31 [2019-09-08 11:29:53,045 WARN L188 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-09-08 11:29:53,418 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2019-09-08 11:29:54,310 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:29:54,684 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:29:55,835 WARN L188 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:29:56,329 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 64 [2019-09-08 11:29:56,591 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-08 11:29:57,122 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-08 11:29:57,491 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 41 [2019-09-08 11:29:57,882 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 54 [2019-09-08 11:29:58,208 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2019-09-08 11:29:58,622 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:29:59,131 WARN L188 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:29:59,445 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 58 [2019-09-08 11:29:59,776 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2019-09-08 11:30:00,082 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 44 [2019-09-08 11:30:00,571 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 58 [2019-09-08 11:30:00,767 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:30:01,373 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2019-09-08 11:30:01,704 WARN L188 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 69 [2019-09-08 11:30:02,169 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2019-09-08 11:30:02,650 WARN L188 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 80 [2019-09-08 11:30:02,999 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 66 [2019-09-08 11:30:03,345 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-09-08 11:30:03,770 WARN L188 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 61 [2019-09-08 11:30:04,261 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2019-09-08 11:30:04,857 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 44 [2019-09-08 11:30:05,198 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 11:30:05,953 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2019-09-08 11:30:06,361 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2019-09-08 11:30:06,668 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2019-09-08 11:30:07,194 WARN L188 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:30:07,739 WARN L188 SmtUtils]: Spent 387.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2019-09-08 11:30:08,080 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2019-09-08 11:30:08,423 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 57 [2019-09-08 11:30:08,798 WARN L188 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2019-09-08 11:30:09,281 WARN L188 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 62 [2019-09-08 11:30:09,471 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-08 11:30:09,688 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 38 [2019-09-08 11:30:10,411 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 48 [2019-09-08 11:30:10,620 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:30:11,209 WARN L188 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2019-09-08 11:30:11,713 WARN L188 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 84 [2019-09-08 11:30:12,369 WARN L188 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:30:12,957 WARN L188 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 71 [2019-09-08 11:30:13,456 WARN L188 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2019-09-08 11:30:13,928 WARN L188 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 88 [2019-09-08 11:30:14,416 WARN L188 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 73 [2019-09-08 11:30:14,604 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 34 [2019-09-08 11:30:14,953 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2019-09-08 11:30:15,140 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 43 [2019-09-08 11:30:15,413 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 49 [2019-09-08 11:30:16,360 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2019-09-08 11:30:16,985 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:30:17,838 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 73 [2019-09-08 11:30:18,535 WARN L188 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 92 [2019-09-08 11:30:18,903 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 58 [2019-09-08 11:30:19,385 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 50 [2019-09-08 11:30:20,399 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-08 11:30:20,699 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-09-08 11:30:20,912 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-08 11:30:21,129 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 11:30:22,059 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2019-09-08 11:30:22,366 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-09-08 11:30:22,920 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 48 [2019-09-08 11:30:23,191 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 51 [2019-09-08 11:30:23,413 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 44 [2019-09-08 11:30:23,662 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2019-09-08 11:30:24,256 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-09-08 11:30:24,596 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 54 [2019-09-08 11:30:24,884 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 49 [2019-09-08 11:30:25,600 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:30:26,190 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:30:26,484 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:30:27,202 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:30:27,435 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:30:28,075 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:30:28,839 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:30:32,920 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-08 11:30:33,549 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:30:34,295 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-08 11:30:34,625 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:30:34,899 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:30:35,480 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-08 11:30:35,866 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:30:36,076 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:30:36,732 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2019-09-08 11:30:37,181 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:30:37,586 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:30:37,892 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:30:38,535 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 11:30:38,793 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:30:39,131 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:30:39,336 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-08 11:30:40,169 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 53 [2019-09-08 11:30:40,605 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2019-09-08 11:30:40,928 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 57 [2019-09-08 11:30:41,238 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:30:41,623 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:30:42,166 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:30:42,506 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 11:30:42,749 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2019-09-08 11:30:43,123 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:30:43,365 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:30:43,998 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 56 [2019-09-08 11:30:44,340 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 57 [2019-09-08 11:30:44,602 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 11:30:45,033 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 69 [2019-09-08 11:30:45,355 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 60 [2019-09-08 11:30:45,636 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 53 [2019-09-08 11:30:46,018 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:30:46,305 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 57 [2019-09-08 11:30:46,929 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-08 11:30:47,249 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 47 [2019-09-08 11:30:47,601 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2019-09-08 11:30:47,860 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:30:48,103 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 55 [2019-09-08 11:30:48,467 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2019-09-08 11:30:48,714 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 51 [2019-09-08 11:30:48,943 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 53 [2019-09-08 11:30:49,871 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 52 [2019-09-08 11:30:50,232 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 54 [2019-09-08 11:30:50,487 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 54 [2019-09-08 11:30:50,966 WARN L188 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2019-09-08 11:30:51,420 WARN L188 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2019-09-08 11:30:51,709 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:30:52,010 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 56 [2019-09-08 11:30:52,435 WARN L188 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:30:52,684 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-08 11:30:53,075 WARN L188 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2019-09-08 11:30:53,379 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 60 [2019-09-08 11:30:54,086 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 46 [2019-09-08 11:30:54,283 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-09-08 11:30:54,541 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 49 [2019-09-08 11:30:54,807 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-08 11:30:55,026 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 45 [2019-09-08 11:30:55,413 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 11:30:55,661 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:30:56,102 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:30:56,857 WARN L188 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:30:57,108 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:30:58,092 WARN L188 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:30:58,573 WARN L188 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2019-09-08 11:30:59,015 WARN L188 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 70 [2019-09-08 11:30:59,325 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 61 [2019-09-08 11:30:59,648 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 51 [2019-09-08 11:30:59,920 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 54 [2019-09-08 11:31:00,182 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2019-09-08 11:31:00,633 WARN L188 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2019-09-08 11:31:01,038 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:31:01,608 WARN L188 SmtUtils]: Spent 467.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2019-09-08 11:31:02,396 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:31:02,631 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-08 11:31:02,806 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 39 [2019-09-08 11:31:03,057 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 48 [2019-09-08 11:31:03,468 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:31:03,850 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 64 [2019-09-08 11:31:04,045 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:04,224 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 11:31:04,704 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:31:05,147 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2019-09-08 11:31:05,528 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:31:05,778 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 52 [2019-09-08 11:31:05,973 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:06,198 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:31:07,333 WARN L188 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2019-09-08 11:31:07,846 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:31:08,287 WARN L188 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2019-09-08 11:31:08,691 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2019-09-08 11:31:09,003 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 61 [2019-09-08 11:31:10,091 WARN L188 SmtUtils]: Spent 505.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 44 [2019-09-08 11:31:10,562 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:31:10,998 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 65 [2019-09-08 11:31:11,375 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 62 [2019-09-08 11:31:11,560 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-08 11:31:11,741 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 11:31:11,926 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:31:12,284 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 11:31:12,756 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:31:12,996 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 46 [2019-09-08 11:31:13,180 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:13,455 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:31:14,713 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2019-09-08 11:31:15,706 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2019-09-08 11:31:15,903 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:31:16,199 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:31:16,492 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:31:16,851 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2019-09-08 11:31:17,057 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2019-09-08 11:31:17,241 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:31:17,524 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:31:19,378 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:31:19,668 WARN L188 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:31:19,873 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 48 [2019-09-08 11:31:35,579 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:36,220 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 45 [2019-09-08 11:31:36,811 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-08 11:31:37,557 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:31:37,790 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 41 [2019-09-08 11:31:38,478 WARN L188 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:31:41,395 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:31:41,794 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:31:42,078 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:42,475 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-08 11:31:43,245 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:31:43,513 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 51 [2019-09-08 11:31:43,809 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2019-09-08 11:31:44,044 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2019-09-08 11:31:44,821 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:45,590 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:45,805 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:46,768 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:51,097 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:31:51,750 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:31:52,102 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:52,334 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:31:53,083 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:53,321 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-08 11:31:53,548 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:53,868 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:54,750 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:55,167 WARN L188 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:55,412 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:31:55,740 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:55,968 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:56,641 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 52 [2019-09-08 11:31:57,035 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:57,279 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2019-09-08 11:31:57,543 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:31:57,772 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:31:57,995 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:31:58,322 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:31:58,576 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 54 [2019-09-08 11:31:59,267 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 11:31:59,660 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:31:59,917 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:32:00,338 WARN L188 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:32:00,586 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 53 [2019-09-08 11:32:00,847 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 48 [2019-09-08 11:32:01,075 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 11:32:01,459 WARN L188 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:32:01,836 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:32:02,048 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:32:02,950 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 49 [2019-09-08 11:32:03,232 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 11:32:03,718 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:32:04,144 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:32:04,407 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:32:04,855 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:32:05,242 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:32:05,590 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:32:05,830 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:32:06,725 WARN L188 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:32:07,230 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2019-09-08 11:32:07,636 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:32:07,878 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 11:32:08,337 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:32:09,226 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:32:20,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:32:20,874 INFO L93 Difference]: Finished difference Result 438484 states and 587618 transitions. [2019-09-08 11:32:20,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 763 states. [2019-09-08 11:32:20,874 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 67 [2019-09-08 11:32:20,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:32:21,955 INFO L225 Difference]: With dead ends: 438484 [2019-09-08 11:32:21,955 INFO L226 Difference]: Without dead ends: 396653 [2019-09-08 11:32:22,203 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 833 GetRequests, 49 SyntacticMatches, 3 SemanticMatches, 781 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293227 ImplicationChecksByTransitivity, 225.3s TimeCoverageRelationStatistics Valid=54831, Invalid=557475, Unknown=0, NotChecked=0, Total=612306 [2019-09-08 11:32:22,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396653 states. [2019-09-08 11:32:39,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396653 to 62807. [2019-09-08 11:32:39,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 62807 states. [2019-09-08 11:32:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62807 states to 62807 states and 85990 transitions. [2019-09-08 11:32:39,477 INFO L78 Accepts]: Start accepts. Automaton has 62807 states and 85990 transitions. Word has length 67 [2019-09-08 11:32:39,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:32:39,477 INFO L475 AbstractCegarLoop]: Abstraction has 62807 states and 85990 transitions. [2019-09-08 11:32:39,477 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:32:39,477 INFO L276 IsEmpty]: Start isEmpty. Operand 62807 states and 85990 transitions. [2019-09-08 11:32:39,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:32:39,481 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:32:39,481 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:32:39,481 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:32:39,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:32:39,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1602445283, now seen corresponding path program 1 times [2019-09-08 11:32:39,482 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:32:39,482 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:32:39,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:32:39,483 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:32:39,483 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:32:39,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:32:40,439 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:32:40,440 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:32:40,440 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:32:40,451 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:32:40,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:32:40,526 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 43 conjunts are in the unsatisfiable core [2019-09-08 11:32:40,529 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:32:41,240 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:32:41,586 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:32:41,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 4 terms [2019-09-08 11:32:41,809 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-08 11:32:42,058 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2019-09-08 11:32:42,364 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 11:32:42,365 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 3 terms [2019-09-08 11:32:43,088 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:32:43,131 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:32:43,135 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:32:43,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 21] total 38 [2019-09-08 11:32:43,136 INFO L454 AbstractCegarLoop]: Interpolant automaton has 38 states [2019-09-08 11:32:43,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2019-09-08 11:32:43,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=135, Invalid=1271, Unknown=0, NotChecked=0, Total=1406 [2019-09-08 11:32:43,137 INFO L87 Difference]: Start difference. First operand 62807 states and 85990 transitions. Second operand 38 states. [2019-09-08 11:32:45,394 WARN L188 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 64 DAG size of output: 25 [2019-09-08 11:32:45,563 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 36 [2019-09-08 11:32:45,770 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 38 [2019-09-08 11:32:45,961 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 41 [2019-09-08 11:32:46,197 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 45 [2019-09-08 11:32:46,565 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 57 [2019-09-08 11:32:46,991 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2019-09-08 11:32:47,149 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2019-09-08 11:32:47,690 WARN L188 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 79 [2019-09-08 11:32:48,067 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 77 [2019-09-08 11:32:48,800 WARN L188 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 90 [2019-09-08 11:32:49,192 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2019-09-08 11:32:49,830 WARN L188 SmtUtils]: Spent 497.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2019-09-08 11:32:50,184 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2019-09-08 11:32:50,657 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 86 [2019-09-08 11:32:51,067 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 51 [2019-09-08 11:32:51,342 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2019-09-08 11:32:51,560 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 46 [2019-09-08 11:32:52,022 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2019-09-08 11:32:52,703 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2019-09-08 11:32:52,977 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 77 [2019-09-08 11:32:53,537 WARN L188 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 88 [2019-09-08 11:32:53,727 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 44 [2019-09-08 11:32:54,348 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2019-09-08 11:32:54,644 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 77 [2019-09-08 11:32:55,307 WARN L188 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2019-09-08 11:32:55,519 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-08 11:32:56,069 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 53 [2019-09-08 11:32:56,687 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-08 11:32:57,080 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 56 [2019-09-08 11:32:57,618 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-09-08 11:32:57,864 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 40 [2019-09-08 11:32:58,395 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-08 11:32:59,405 WARN L188 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 92 [2019-09-08 11:32:59,928 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 90 [2019-09-08 11:33:00,767 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2019-09-08 11:33:01,077 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 11:33:01,326 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 46 [2019-09-08 11:33:02,225 WARN L188 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 100 [2019-09-08 11:33:02,663 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2019-09-08 11:33:03,485 WARN L188 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 81 [2019-09-08 11:33:03,715 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 60 [2019-09-08 11:33:04,156 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 53 [2019-09-08 11:33:04,361 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 41 [2019-09-08 11:33:05,120 WARN L188 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2019-09-08 11:33:05,642 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 44 [2019-09-08 11:33:05,917 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 43 [2019-09-08 11:33:07,491 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:33:08,152 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 55 [2019-09-08 11:33:08,432 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 65 [2019-09-08 11:33:08,773 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2019-09-08 11:33:09,122 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 54 [2019-09-08 11:33:09,467 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:33:09,678 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 56 [2019-09-08 11:33:09,858 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:33:10,449 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2019-09-08 11:33:10,913 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 42 [2019-09-08 11:33:11,324 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 76 [2019-09-08 11:33:11,644 WARN L188 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 77 [2019-09-08 11:33:11,806 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2019-09-08 11:33:12,245 WARN L188 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 87 [2019-09-08 11:33:12,486 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2019-09-08 11:33:12,721 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 45 [2019-09-08 11:33:12,987 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 56 [2019-09-08 11:33:13,436 WARN L188 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 80 [2019-09-08 11:33:13,898 WARN L188 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 82 [2019-09-08 11:33:14,275 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:33:14,718 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 59 [2019-09-08 11:33:15,300 WARN L188 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 85 [2019-09-08 11:33:15,625 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2019-09-08 11:33:16,345 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2019-09-08 11:33:17,227 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 47 [2019-09-08 11:33:19,445 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 68 [2019-09-08 11:33:21,479 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2019-09-08 11:33:21,712 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 63 [2019-09-08 11:33:22,603 WARN L188 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 93 [2019-09-08 11:33:22,853 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:33:24,026 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2019-09-08 11:33:24,743 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 37 [2019-09-08 11:33:25,907 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2019-09-08 11:33:34,671 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 79 [2019-09-08 11:33:35,622 WARN L188 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 84 [2019-09-08 11:33:36,600 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2019-09-08 11:33:50,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:33:50,469 INFO L93 Difference]: Finished difference Result 199423 states and 270538 transitions. [2019-09-08 11:33:50,470 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2019-09-08 11:33:50,470 INFO L78 Accepts]: Start accepts. Automaton has 38 states. Word has length 67 [2019-09-08 11:33:50,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:33:50,668 INFO L225 Difference]: With dead ends: 199423 [2019-09-08 11:33:50,668 INFO L226 Difference]: Without dead ends: 160038 [2019-09-08 11:33:50,723 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 47 SyntacticMatches, 3 SemanticMatches, 188 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13994 ImplicationChecksByTransitivity, 33.0s TimeCoverageRelationStatistics Valid=5424, Invalid=30486, Unknown=0, NotChecked=0, Total=35910 [2019-09-08 11:33:50,839 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160038 states. [2019-09-08 11:34:04,375 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160038 to 69278. [2019-09-08 11:34:04,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 69278 states. [2019-09-08 11:34:04,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69278 states to 69278 states and 95370 transitions. [2019-09-08 11:34:04,458 INFO L78 Accepts]: Start accepts. Automaton has 69278 states and 95370 transitions. Word has length 67 [2019-09-08 11:34:04,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:34:04,458 INFO L475 AbstractCegarLoop]: Abstraction has 69278 states and 95370 transitions. [2019-09-08 11:34:04,458 INFO L476 AbstractCegarLoop]: Interpolant automaton has 38 states. [2019-09-08 11:34:04,458 INFO L276 IsEmpty]: Start isEmpty. Operand 69278 states and 95370 transitions. [2019-09-08 11:34:04,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2019-09-08 11:34:04,461 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:34:04,461 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:34:04,461 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:34:04,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:34:04,461 INFO L82 PathProgramCache]: Analyzing trace with hash 871871289, now seen corresponding path program 1 times [2019-09-08 11:34:04,462 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:34:04,462 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:34:04,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:04,463 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:04,463 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:04,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:04,503 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 11:34:04,504 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:34:04,504 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:34:04,504 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:34:04,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:34:04,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:34:04,505 INFO L87 Difference]: Start difference. First operand 69278 states and 95370 transitions. Second operand 3 states. [2019-09-08 11:34:15,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:34:15,952 INFO L93 Difference]: Finished difference Result 126827 states and 174856 transitions. [2019-09-08 11:34:15,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:34:15,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 67 [2019-09-08 11:34:15,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:34:16,019 INFO L225 Difference]: With dead ends: 126827 [2019-09-08 11:34:16,020 INFO L226 Difference]: Without dead ends: 57574 [2019-09-08 11:34:16,065 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 11:34:16,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57574 states. [2019-09-08 11:34:25,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57574 to 57574. [2019-09-08 11:34:25,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57574 states. [2019-09-08 11:34:25,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57574 states to 57574 states and 78201 transitions. [2019-09-08 11:34:25,856 INFO L78 Accepts]: Start accepts. Automaton has 57574 states and 78201 transitions. Word has length 67 [2019-09-08 11:34:25,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:34:25,856 INFO L475 AbstractCegarLoop]: Abstraction has 57574 states and 78201 transitions. [2019-09-08 11:34:25,856 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:34:25,856 INFO L276 IsEmpty]: Start isEmpty. Operand 57574 states and 78201 transitions. [2019-09-08 11:34:25,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:34:25,858 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:34:25,858 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:34:25,858 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:34:25,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:34:25,859 INFO L82 PathProgramCache]: Analyzing trace with hash -217937935, now seen corresponding path program 1 times [2019-09-08 11:34:25,859 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:34:25,859 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:34:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:25,860 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:25,860 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:25,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:25,907 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:34:25,907 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:34:25,907 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:34:25,907 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:34:25,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:34:25,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:34:25,908 INFO L87 Difference]: Start difference. First operand 57574 states and 78201 transitions. Second operand 3 states. [2019-09-08 11:34:35,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:34:35,807 INFO L93 Difference]: Finished difference Result 113007 states and 153765 transitions. [2019-09-08 11:34:35,807 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:34:35,807 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:34:35,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:34:35,869 INFO L225 Difference]: With dead ends: 113007 [2019-09-08 11:34:35,869 INFO L226 Difference]: Without dead ends: 55458 [2019-09-08 11:34:35,902 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 11:34:35,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55458 states. [2019-09-08 11:34:47,369 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55458 to 53764. [2019-09-08 11:34:47,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 53764 states. [2019-09-08 11:34:47,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53764 states to 53764 states and 71909 transitions. [2019-09-08 11:34:47,430 INFO L78 Accepts]: Start accepts. Automaton has 53764 states and 71909 transitions. Word has length 68 [2019-09-08 11:34:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:34:47,430 INFO L475 AbstractCegarLoop]: Abstraction has 53764 states and 71909 transitions. [2019-09-08 11:34:47,430 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:34:47,431 INFO L276 IsEmpty]: Start isEmpty. Operand 53764 states and 71909 transitions. [2019-09-08 11:34:47,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:34:47,432 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:34:47,433 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:34:47,433 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:34:47,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:34:47,433 INFO L82 PathProgramCache]: Analyzing trace with hash 1310845681, now seen corresponding path program 1 times [2019-09-08 11:34:47,433 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:34:47,433 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:34:47,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:47,434 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:47,434 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:47,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:47,480 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:34:47,481 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:34:47,481 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:34:47,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:34:47,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:34:47,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:34:47,482 INFO L87 Difference]: Start difference. First operand 53764 states and 71909 transitions. Second operand 3 states. [2019-09-08 11:34:51,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:34:51,697 INFO L93 Difference]: Finished difference Result 77962 states and 104177 transitions. [2019-09-08 11:34:51,697 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:34:51,698 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:34:51,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:34:51,720 INFO L225 Difference]: With dead ends: 77962 [2019-09-08 11:34:51,721 INFO L226 Difference]: Without dead ends: 24223 [2019-09-08 11:34:51,752 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 11:34:51,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24223 states. [2019-09-08 11:34:55,743 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24223 to 24221. [2019-09-08 11:34:55,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24221 states. [2019-09-08 11:34:55,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24221 states to 24221 states and 31750 transitions. [2019-09-08 11:34:55,769 INFO L78 Accepts]: Start accepts. Automaton has 24221 states and 31750 transitions. Word has length 68 [2019-09-08 11:34:55,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:34:55,769 INFO L475 AbstractCegarLoop]: Abstraction has 24221 states and 31750 transitions. [2019-09-08 11:34:55,769 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:34:55,770 INFO L276 IsEmpty]: Start isEmpty. Operand 24221 states and 31750 transitions. [2019-09-08 11:34:55,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-09-08 11:34:55,771 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:34:55,771 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] [2019-09-08 11:34:55,771 INFO L418 AbstractCegarLoop]: === Iteration 21 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:34:55,771 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:34:55,771 INFO L82 PathProgramCache]: Analyzing trace with hash -2039229901, now seen corresponding path program 1 times [2019-09-08 11:34:55,772 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:34:55,772 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:34:55,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:55,773 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:34:55,773 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:34:55,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:34:55,799 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2019-09-08 11:34:55,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:34:55,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:34:55,800 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:34:55,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:34:55,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:34:55,801 INFO L87 Difference]: Start difference. First operand 24221 states and 31750 transitions. Second operand 3 states. [2019-09-08 11:34:59,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:34:59,277 INFO L93 Difference]: Finished difference Result 43658 states and 57355 transitions. [2019-09-08 11:34:59,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:34:59,277 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-09-08 11:34:59,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:34:59,298 INFO L225 Difference]: With dead ends: 43658 [2019-09-08 11:34:59,299 INFO L226 Difference]: Without dead ends: 19462 [2019-09-08 11:34:59,315 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 11:34:59,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19462 states. [2019-09-08 11:35:02,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19462 to 19462. [2019-09-08 11:35:02,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19462 states. [2019-09-08 11:35:02,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19462 states to 19462 states and 25179 transitions. [2019-09-08 11:35:02,636 INFO L78 Accepts]: Start accepts. Automaton has 19462 states and 25179 transitions. Word has length 68 [2019-09-08 11:35:02,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:02,636 INFO L475 AbstractCegarLoop]: Abstraction has 19462 states and 25179 transitions. [2019-09-08 11:35:02,637 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:35:02,637 INFO L276 IsEmpty]: Start isEmpty. Operand 19462 states and 25179 transitions. [2019-09-08 11:35:02,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:35:02,638 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:02,638 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] [2019-09-08 11:35:02,638 INFO L418 AbstractCegarLoop]: === Iteration 22 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:02,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:02,639 INFO L82 PathProgramCache]: Analyzing trace with hash 59080277, now seen corresponding path program 1 times [2019-09-08 11:35:02,639 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:02,639 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:02,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:02,640 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:02,640 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:03,940 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:03,940 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:03,941 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:35:03,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:04,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:04,018 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 31 conjunts are in the unsatisfiable core [2019-09-08 11:35:04,020 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:04,290 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:04,571 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:05,020 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:05,219 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:05,230 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:35:05,231 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 17] total 36 [2019-09-08 11:35:05,231 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:35:05,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:35:05,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1164, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:35:05,234 INFO L87 Difference]: Start difference. First operand 19462 states and 25179 transitions. Second operand 36 states. [2019-09-08 11:35:06,252 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 42 [2019-09-08 11:35:06,428 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 46 [2019-09-08 11:35:06,632 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 50 [2019-09-08 11:35:06,847 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-08 11:35:07,080 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 59 [2019-09-08 11:35:07,383 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 69 [2019-09-08 11:35:07,666 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:35:07,847 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:35:08,135 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:35:08,366 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:35:08,536 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 39 [2019-09-08 11:35:08,841 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:35:09,133 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:35:09,335 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 40 [2019-09-08 11:35:09,580 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:35:09,885 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:35:10,344 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-08 11:35:10,624 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-08 11:35:10,770 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 39 [2019-09-08 11:35:10,947 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 36 [2019-09-08 11:35:11,160 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:35:11,451 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 43 [2019-09-08 11:35:13,257 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2019-09-08 11:35:13,415 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:35:14,308 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 53 [2019-09-08 11:35:14,495 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2019-09-08 11:35:14,921 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 46 [2019-09-08 11:35:15,072 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 45 [2019-09-08 11:35:15,369 WARN L188 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 11:35:15,798 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-08 11:35:16,094 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2019-09-08 11:35:16,416 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 79 [2019-09-08 11:35:16,689 WARN L188 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:35:16,988 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 48 [2019-09-08 11:35:17,313 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2019-09-08 11:35:17,687 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 93 [2019-09-08 11:35:17,995 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:35:18,292 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2019-09-08 11:35:18,478 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:35:18,686 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:35:18,858 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:35:19,058 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2019-09-08 11:35:19,216 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 44 [2019-09-08 11:35:19,384 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:35:19,565 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:35:19,741 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:35:20,061 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:35:20,224 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:35:20,426 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:35:20,580 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 51 [2019-09-08 11:35:20,902 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:35:21,085 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:35:21,329 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:35:21,509 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 49 [2019-09-08 11:35:21,711 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:35:21,996 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 57 [2019-09-08 11:35:22,231 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:35:22,598 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:35:22,794 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:35:23,001 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 51 [2019-09-08 11:35:23,258 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:35:23,451 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 60 [2019-09-08 11:35:23,662 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:35:23,857 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2019-09-08 11:35:24,238 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2019-09-08 11:35:24,448 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 11:35:24,664 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:35:24,928 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:35:25,266 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 58 [2019-09-08 11:35:25,418 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 11:35:25,642 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 47 [2019-09-08 11:35:26,172 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:35:26,391 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 45 [2019-09-08 11:35:27,521 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 42 [2019-09-08 11:35:28,193 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 11:35:28,463 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:35:29,187 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-08 11:35:29,451 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:35:33,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:33,686 INFO L93 Difference]: Finished difference Result 45026 states and 59195 transitions. [2019-09-08 11:35:33,688 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 118 states. [2019-09-08 11:35:33,688 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 69 [2019-09-08 11:35:33,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:33,730 INFO L225 Difference]: With dead ends: 45026 [2019-09-08 11:35:33,730 INFO L226 Difference]: Without dead ends: 39160 [2019-09-08 11:35:33,739 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 149 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8073 ImplicationChecksByTransitivity, 20.4s TimeCoverageRelationStatistics Valid=3298, Invalid=19352, Unknown=0, NotChecked=0, Total=22650 [2019-09-08 11:35:33,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39160 states. [2019-09-08 11:35:38,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39160 to 23110. [2019-09-08 11:35:38,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23110 states. [2019-09-08 11:35:38,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23110 states to 23110 states and 30069 transitions. [2019-09-08 11:35:38,047 INFO L78 Accepts]: Start accepts. Automaton has 23110 states and 30069 transitions. Word has length 69 [2019-09-08 11:35:38,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:38,048 INFO L475 AbstractCegarLoop]: Abstraction has 23110 states and 30069 transitions. [2019-09-08 11:35:38,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:35:38,048 INFO L276 IsEmpty]: Start isEmpty. Operand 23110 states and 30069 transitions. [2019-09-08 11:35:38,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:35:38,049 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:38,049 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] [2019-09-08 11:35:38,049 INFO L418 AbstractCegarLoop]: === Iteration 23 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:38,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:38,049 INFO L82 PathProgramCache]: Analyzing trace with hash -156963844, now seen corresponding path program 1 times [2019-09-08 11:35:38,050 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:38,050 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:38,050 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:38,051 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:38,051 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:38,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:38,844 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:38,844 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:35:38,844 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:35:38,855 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:38,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:38,934 INFO L256 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:35:38,936 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:35:39,252 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:35:39,525 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:39,535 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:35:39,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 12] total 28 [2019-09-08 11:35:39,536 INFO L454 AbstractCegarLoop]: Interpolant automaton has 28 states [2019-09-08 11:35:39,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2019-09-08 11:35:39,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=684, Unknown=0, NotChecked=0, Total=756 [2019-09-08 11:35:39,536 INFO L87 Difference]: Start difference. First operand 23110 states and 30069 transitions. Second operand 28 states. [2019-09-08 11:35:40,596 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 35 [2019-09-08 11:35:40,833 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 44 [2019-09-08 11:35:41,128 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 63 [2019-09-08 11:35:41,407 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-08 11:35:41,720 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 59 [2019-09-08 11:35:42,005 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 48 [2019-09-08 11:35:42,433 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2019-09-08 11:35:42,650 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 48 [2019-09-08 11:35:42,920 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 37 [2019-09-08 11:35:43,171 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-09-08 11:35:43,346 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 37 [2019-09-08 11:35:43,580 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-08 11:35:43,818 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 48 [2019-09-08 11:35:44,723 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 28 [2019-09-08 11:35:44,974 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 39 [2019-09-08 11:35:45,374 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 36 [2019-09-08 11:35:45,679 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 34 [2019-09-08 11:35:45,991 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 31 [2019-09-08 11:35:46,423 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 41 [2019-09-08 11:35:46,602 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2019-09-08 11:35:46,846 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 43 [2019-09-08 11:35:47,133 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 60 [2019-09-08 11:35:47,299 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:35:47,566 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:35:47,886 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 43 [2019-09-08 11:35:48,156 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 56 [2019-09-08 11:35:48,585 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 45 [2019-09-08 11:35:49,105 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 45 [2019-09-08 11:35:55,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:35:55,956 INFO L93 Difference]: Finished difference Result 44964 states and 58467 transitions. [2019-09-08 11:35:55,956 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2019-09-08 11:35:55,956 INFO L78 Accepts]: Start accepts. Automaton has 28 states. Word has length 69 [2019-09-08 11:35:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:35:55,990 INFO L225 Difference]: With dead ends: 44964 [2019-09-08 11:35:55,990 INFO L226 Difference]: Without dead ends: 35473 [2019-09-08 11:35:56,000 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 74 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1413 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=1123, Invalid=4577, Unknown=0, NotChecked=0, Total=5700 [2019-09-08 11:35:56,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35473 states. [2019-09-08 11:35:59,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35473 to 17620. [2019-09-08 11:35:59,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17620 states. [2019-09-08 11:35:59,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17620 states to 17620 states and 22728 transitions. [2019-09-08 11:35:59,684 INFO L78 Accepts]: Start accepts. Automaton has 17620 states and 22728 transitions. Word has length 69 [2019-09-08 11:35:59,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:35:59,685 INFO L475 AbstractCegarLoop]: Abstraction has 17620 states and 22728 transitions. [2019-09-08 11:35:59,685 INFO L476 AbstractCegarLoop]: Interpolant automaton has 28 states. [2019-09-08 11:35:59,685 INFO L276 IsEmpty]: Start isEmpty. Operand 17620 states and 22728 transitions. [2019-09-08 11:35:59,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:35:59,686 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:35:59,686 INFO L399 BasicCegarLoop]: trace histogram [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] [2019-09-08 11:35:59,686 INFO L418 AbstractCegarLoop]: === Iteration 24 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:35:59,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:35:59,686 INFO L82 PathProgramCache]: Analyzing trace with hash -723465889, now seen corresponding path program 1 times [2019-09-08 11:35:59,686 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:35:59,686 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:35:59,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:59,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:35:59,687 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:35:59,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:35:59,732 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:35:59,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:35:59,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:35:59,732 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:35:59,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:35:59,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:35:59,733 INFO L87 Difference]: Start difference. First operand 17620 states and 22728 transitions. Second operand 3 states. [2019-09-08 11:36:01,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:01,116 INFO L93 Difference]: Finished difference Result 23510 states and 30479 transitions. [2019-09-08 11:36:01,117 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:36:01,117 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2019-09-08 11:36:01,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:01,124 INFO L225 Difference]: With dead ends: 23510 [2019-09-08 11:36:01,124 INFO L226 Difference]: Without dead ends: 5915 [2019-09-08 11:36:01,137 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 11:36:01,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5915 states. [2019-09-08 11:36:02,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5915 to 5769. [2019-09-08 11:36:02,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5769 states. [2019-09-08 11:36:02,423 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5769 states to 5769 states and 7476 transitions. [2019-09-08 11:36:02,423 INFO L78 Accepts]: Start accepts. Automaton has 5769 states and 7476 transitions. Word has length 69 [2019-09-08 11:36:02,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:36:02,424 INFO L475 AbstractCegarLoop]: Abstraction has 5769 states and 7476 transitions. [2019-09-08 11:36:02,424 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:36:02,424 INFO L276 IsEmpty]: Start isEmpty. Operand 5769 states and 7476 transitions. [2019-09-08 11:36:02,425 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2019-09-08 11:36:02,425 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:36:02,425 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] [2019-09-08 11:36:02,425 INFO L418 AbstractCegarLoop]: === Iteration 25 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:36:02,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:36:02,426 INFO L82 PathProgramCache]: Analyzing trace with hash -628683308, now seen corresponding path program 1 times [2019-09-08 11:36:02,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:36:02,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:36:02,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:02,427 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:02,427 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:02,463 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2019-09-08 11:36:02,463 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:36:02,464 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:36:02,464 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:36:02,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:36:02,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:36:02,464 INFO L87 Difference]: Start difference. First operand 5769 states and 7476 transitions. Second operand 3 states. [2019-09-08 11:36:02,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:02,962 INFO L93 Difference]: Finished difference Result 7748 states and 10098 transitions. [2019-09-08 11:36:02,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:36:02,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 69 [2019-09-08 11:36:02,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:02,964 INFO L225 Difference]: With dead ends: 7748 [2019-09-08 11:36:02,964 INFO L226 Difference]: Without dead ends: 2040 [2019-09-08 11:36:02,968 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 11:36:02,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2040 states. [2019-09-08 11:36:03,354 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2040 to 2040. [2019-09-08 11:36:03,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2040 states. [2019-09-08 11:36:03,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2040 states to 2040 states and 2647 transitions. [2019-09-08 11:36:03,357 INFO L78 Accepts]: Start accepts. Automaton has 2040 states and 2647 transitions. Word has length 69 [2019-09-08 11:36:03,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:36:03,357 INFO L475 AbstractCegarLoop]: Abstraction has 2040 states and 2647 transitions. [2019-09-08 11:36:03,357 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:36:03,357 INFO L276 IsEmpty]: Start isEmpty. Operand 2040 states and 2647 transitions. [2019-09-08 11:36:03,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-08 11:36:03,359 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:36:03,360 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] [2019-09-08 11:36:03,360 INFO L418 AbstractCegarLoop]: === Iteration 26 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:36:03,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:36:03,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1308029272, now seen corresponding path program 1 times [2019-09-08 11:36:03,360 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:36:03,360 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:36:03,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:03,362 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:03,362 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:03,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:04,041 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 46 [2019-09-08 11:36:04,604 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:04,605 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:36:04,605 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:36:04,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:04,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:04,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:36:04,689 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:36:04,880 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:05,165 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:05,169 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:36:05,169 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12] total 29 [2019-09-08 11:36:05,170 INFO L454 AbstractCegarLoop]: Interpolant automaton has 29 states [2019-09-08 11:36:05,170 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2019-09-08 11:36:05,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=737, Unknown=0, NotChecked=0, Total=812 [2019-09-08 11:36:05,170 INFO L87 Difference]: Start difference. First operand 2040 states and 2647 transitions. Second operand 29 states. [2019-09-08 11:36:06,130 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 35 [2019-09-08 11:36:06,383 WARN L188 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 49 [2019-09-08 11:36:06,680 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 49 [2019-09-08 11:36:06,859 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 35 [2019-09-08 11:36:07,073 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 30 [2019-09-08 11:36:08,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:08,173 INFO L93 Difference]: Finished difference Result 4040 states and 5339 transitions. [2019-09-08 11:36:08,173 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2019-09-08 11:36:08,174 INFO L78 Accepts]: Start accepts. Automaton has 29 states. Word has length 70 [2019-09-08 11:36:08,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:08,177 INFO L225 Difference]: With dead ends: 4040 [2019-09-08 11:36:08,177 INFO L226 Difference]: Without dead ends: 2753 [2019-09-08 11:36:08,179 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 62 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 322 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=297, Invalid=1683, Unknown=0, NotChecked=0, Total=1980 [2019-09-08 11:36:08,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2753 states. [2019-09-08 11:36:08,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2753 to 1982. [2019-09-08 11:36:08,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2019-09-08 11:36:08,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2583 transitions. [2019-09-08 11:36:08,569 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2583 transitions. Word has length 70 [2019-09-08 11:36:08,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:36:08,569 INFO L475 AbstractCegarLoop]: Abstraction has 1982 states and 2583 transitions. [2019-09-08 11:36:08,569 INFO L476 AbstractCegarLoop]: Interpolant automaton has 29 states. [2019-09-08 11:36:08,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2583 transitions. [2019-09-08 11:36:08,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2019-09-08 11:36:08,571 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:36:08,571 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:36:08,572 INFO L418 AbstractCegarLoop]: === Iteration 27 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:36:08,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:36:08,572 INFO L82 PathProgramCache]: Analyzing trace with hash -2078023252, now seen corresponding path program 1 times [2019-09-08 11:36:08,572 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:36:08,572 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:36:08,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:08,573 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:08,573 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:08,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:09,082 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 19 proven. 71 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:09,082 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:36:09,082 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:36:09,092 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:09,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:09,184 INFO L256 TraceCheckSpWp]: Trace formula consists of 641 conjuncts, 19 conjunts are in the unsatisfiable core [2019-09-08 11:36:09,186 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:36:09,463 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:09,697 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 39 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:09,701 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:36:09,701 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 12] total 26 [2019-09-08 11:36:09,702 INFO L454 AbstractCegarLoop]: Interpolant automaton has 26 states [2019-09-08 11:36:09,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2019-09-08 11:36:09,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=586, Unknown=0, NotChecked=0, Total=650 [2019-09-08 11:36:09,702 INFO L87 Difference]: Start difference. First operand 1982 states and 2583 transitions. Second operand 26 states. [2019-09-08 11:36:09,893 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-08 11:36:11,761 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-08 11:36:11,968 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-08 11:36:12,192 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-08 11:36:12,510 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-08 11:36:12,854 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:36:13,177 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-08 11:36:13,376 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 11:36:13,652 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:36:13,886 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 11:36:14,229 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-08 11:36:14,394 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 72 [2019-09-08 11:36:14,654 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 77 [2019-09-08 11:36:14,798 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:36:15,367 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:36:15,694 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:36:16,319 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 11:36:16,917 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-08 11:36:17,106 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 59 [2019-09-08 11:36:17,471 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:36:17,799 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 57 [2019-09-08 11:36:17,999 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 62 [2019-09-08 11:36:18,636 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:36:18,849 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:36:19,201 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:36:19,392 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:36:19,790 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:36:20,159 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:36:20,461 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:36:21,911 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 11:36:22,539 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:36:23,647 WARN L188 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 11:36:24,035 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 11:36:25,556 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:36:25,776 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 49 [2019-09-08 11:36:27,720 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 53 [2019-09-08 11:36:28,267 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-08 11:36:28,438 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:36:28,666 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 11:36:29,595 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:36:30,382 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 11:36:30,888 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:36:31,429 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:36:31,642 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:36:31,848 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:32,080 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:36:32,402 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-08 11:36:32,634 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:36:32,856 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:33,115 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-09-08 11:36:33,611 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:36:33,818 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:34,394 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:36:34,769 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2019-09-08 11:36:34,996 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2019-09-08 11:36:35,178 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-09-08 11:36:35,694 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2019-09-08 11:36:36,776 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2019-09-08 11:36:37,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:37,296 INFO L93 Difference]: Finished difference Result 9371 states and 12227 transitions. [2019-09-08 11:36:37,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2019-09-08 11:36:37,296 INFO L78 Accepts]: Start accepts. Automaton has 26 states. Word has length 110 [2019-09-08 11:36:37,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:37,302 INFO L225 Difference]: With dead ends: 9371 [2019-09-08 11:36:37,303 INFO L226 Difference]: Without dead ends: 7763 [2019-09-08 11:36:37,305 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 243 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 141 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7065 ImplicationChecksByTransitivity, 19.4s TimeCoverageRelationStatistics Valid=2840, Invalid=17466, Unknown=0, NotChecked=0, Total=20306 [2019-09-08 11:36:37,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7763 states. [2019-09-08 11:36:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7763 to 2475. [2019-09-08 11:36:37,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2475 states. [2019-09-08 11:36:37,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2475 states to 2475 states and 3206 transitions. [2019-09-08 11:36:37,947 INFO L78 Accepts]: Start accepts. Automaton has 2475 states and 3206 transitions. Word has length 110 [2019-09-08 11:36:37,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:36:37,948 INFO L475 AbstractCegarLoop]: Abstraction has 2475 states and 3206 transitions. [2019-09-08 11:36:37,948 INFO L476 AbstractCegarLoop]: Interpolant automaton has 26 states. [2019-09-08 11:36:37,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2475 states and 3206 transitions. [2019-09-08 11:36:37,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-08 11:36:37,950 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:36:37,950 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:36:37,950 INFO L418 AbstractCegarLoop]: === Iteration 28 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:36:37,950 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:36:37,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1830097375, now seen corresponding path program 1 times [2019-09-08 11:36:37,951 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:36:37,951 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:36:37,951 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:37,952 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:37,952 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:36:37,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:38,202 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 22 proven. 64 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:38,202 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:36:38,202 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:36:38,214 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:36:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:36:38,298 INFO L256 TraceCheckSpWp]: Trace formula consists of 644 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:36:38,300 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:36:38,378 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:38,406 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:38,436 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:38,498 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:36:38,673 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 30 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:36:38,682 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:36:38,682 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 22 [2019-09-08 11:36:38,683 INFO L454 AbstractCegarLoop]: Interpolant automaton has 22 states [2019-09-08 11:36:38,683 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2019-09-08 11:36:38,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=411, Unknown=0, NotChecked=0, Total=462 [2019-09-08 11:36:38,684 INFO L87 Difference]: Start difference. First operand 2475 states and 3206 transitions. Second operand 22 states. [2019-09-08 11:36:40,249 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-09-08 11:36:40,580 WARN L188 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:40,746 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-08 11:36:41,037 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2019-09-08 11:36:41,301 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:41,495 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-08 11:36:41,786 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:36:41,958 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 59 [2019-09-08 11:36:42,235 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:42,392 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 58 [2019-09-08 11:36:42,655 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:36:43,246 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 62 [2019-09-08 11:36:43,391 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:43,563 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 11:36:43,736 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 58 [2019-09-08 11:36:43,881 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-08 11:36:44,326 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-09-08 11:36:44,472 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:44,628 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 11:36:44,943 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-08 11:36:45,242 WARN L188 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-08 11:36:45,487 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-09-08 11:36:45,640 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:36:45,827 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2019-09-08 11:36:46,304 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 54 [2019-09-08 11:36:46,827 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2019-09-08 11:36:47,215 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:36:47,429 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 11:36:47,661 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2019-09-08 11:36:48,044 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 49 [2019-09-08 11:36:48,226 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2019-09-08 11:36:48,523 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2019-09-08 11:36:48,887 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 55 [2019-09-08 11:36:49,295 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 57 [2019-09-08 11:36:49,495 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 11:36:49,652 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-08 11:36:49,880 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 54 [2019-09-08 11:36:50,215 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-09-08 11:36:51,058 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 56 [2019-09-08 11:36:51,302 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 58 [2019-09-08 11:36:51,481 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2019-09-08 11:36:51,647 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:36:51,852 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-09-08 11:36:52,061 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2019-09-08 11:36:52,241 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:36:52,622 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2019-09-08 11:36:52,988 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 48 [2019-09-08 11:36:53,347 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-08 11:36:53,567 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 64 [2019-09-08 11:36:53,869 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 60 [2019-09-08 11:36:54,115 WARN L188 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2019-09-08 11:36:54,295 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2019-09-08 11:36:58,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:36:58,982 INFO L93 Difference]: Finished difference Result 20602 states and 27244 transitions. [2019-09-08 11:36:58,983 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2019-09-08 11:36:58,983 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 111 [2019-09-08 11:36:58,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:36:59,000 INFO L225 Difference]: With dead ends: 20602 [2019-09-08 11:36:59,000 INFO L226 Difference]: Without dead ends: 18241 [2019-09-08 11:36:59,004 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 101 SyntacticMatches, 1 SemanticMatches, 118 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4448 ImplicationChecksByTransitivity, 12.5s TimeCoverageRelationStatistics Valid=2633, Invalid=11647, Unknown=0, NotChecked=0, Total=14280 [2019-09-08 11:36:59,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18241 states. [2019-09-08 11:37:01,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18241 to 6611. [2019-09-08 11:37:01,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6611 states. [2019-09-08 11:37:01,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6611 states to 6611 states and 8409 transitions. [2019-09-08 11:37:01,047 INFO L78 Accepts]: Start accepts. Automaton has 6611 states and 8409 transitions. Word has length 111 [2019-09-08 11:37:01,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:37:01,048 INFO L475 AbstractCegarLoop]: Abstraction has 6611 states and 8409 transitions. [2019-09-08 11:37:01,048 INFO L476 AbstractCegarLoop]: Interpolant automaton has 22 states. [2019-09-08 11:37:01,048 INFO L276 IsEmpty]: Start isEmpty. Operand 6611 states and 8409 transitions. [2019-09-08 11:37:01,050 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2019-09-08 11:37:01,050 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:37:01,050 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:37:01,050 INFO L418 AbstractCegarLoop]: === Iteration 29 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:37:01,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:37:01,051 INFO L82 PathProgramCache]: Analyzing trace with hash 872914104, now seen corresponding path program 1 times [2019-09-08 11:37:01,051 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:37:01,051 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:37:01,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:37:01,052 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:37:01,052 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:37:01,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:37:01,395 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 22 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:37:01,395 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:37:01,395 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:37:01,406 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:37:01,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:37:01,511 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 28 conjunts are in the unsatisfiable core [2019-09-08 11:37:01,514 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:37:01,921 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:37:01,988 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:37:02,053 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:37:02,362 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:37:03,333 INFO L134 CoverageAnalysis]: Checked inductivity of 87 backedges. 13 proven. 74 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:37:03,346 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:37:03,346 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 17] total 31 [2019-09-08 11:37:03,347 INFO L454 AbstractCegarLoop]: Interpolant automaton has 31 states [2019-09-08 11:37:03,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2019-09-08 11:37:03,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=859, Unknown=0, NotChecked=0, Total=930 [2019-09-08 11:37:03,347 INFO L87 Difference]: Start difference. First operand 6611 states and 8409 transitions. Second operand 31 states. [2019-09-08 11:37:03,610 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 66 [2019-09-08 11:37:04,744 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 43 [2019-09-08 11:37:04,925 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 45 [2019-09-08 11:37:05,115 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:37:05,339 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 55 [2019-09-08 11:37:05,576 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 56 [2019-09-08 11:37:05,775 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 59 [2019-09-08 11:37:05,998 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2019-09-08 11:37:06,285 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-08 11:37:06,517 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2019-09-08 11:37:06,857 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 11:37:07,123 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2019-09-08 11:37:07,484 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:37:07,820 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:37:08,401 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 74 [2019-09-08 11:37:11,226 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 11:37:11,566 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:37:11,786 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-08 11:37:12,438 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 11:37:12,651 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:13,322 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:37:14,854 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 60 [2019-09-08 11:37:16,399 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:37:16,699 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:37:17,167 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:37:17,732 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 11:37:17,958 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-09-08 11:37:21,040 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:37:24,728 WARN L188 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:37:25,680 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:37:25,915 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:37:26,115 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:37:26,511 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:37:27,413 WARN L188 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 68 [2019-09-08 11:37:28,177 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:37:29,103 WARN L188 SmtUtils]: Spent 498.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:37:29,582 WARN L188 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:37:29,911 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2019-09-08 11:37:32,724 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2019-09-08 11:37:32,988 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 63 [2019-09-08 11:37:33,241 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2019-09-08 11:37:33,784 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-08 11:37:34,291 WARN L188 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:37:34,572 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-09-08 11:37:34,986 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 11:37:35,255 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2019-09-08 11:37:35,515 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-09-08 11:37:36,501 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:37:36,740 WARN L188 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2019-09-08 11:37:37,276 WARN L188 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2019-09-08 11:37:37,602 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-09-08 11:37:37,909 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-09-08 11:37:38,080 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 11:37:38,695 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:37:40,771 WARN L188 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2019-09-08 11:37:41,085 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 60 [2019-09-08 11:37:41,928 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:42,220 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2019-09-08 11:37:42,742 WARN L188 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 72 [2019-09-08 11:37:43,215 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:37:44,428 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-08 11:37:44,790 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 64 [2019-09-08 11:37:45,271 WARN L188 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:37:45,913 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-08 11:37:46,640 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 69 [2019-09-08 11:37:47,249 WARN L188 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:37:47,684 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:48,288 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:48,776 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 80 [2019-09-08 11:37:50,049 WARN L188 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2019-09-08 11:37:50,888 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:37:52,552 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:37:52,739 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-08 11:37:53,060 WARN L188 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:37:54,323 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:37:55,345 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2019-09-08 11:37:55,698 WARN L188 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:56,705 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:37:57,248 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:37:57,554 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:37:58,305 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 11:37:58,795 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:37:59,828 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-09-08 11:38:00,407 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:38:00,704 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:38:04,247 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2019-09-08 11:38:05,557 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2019-09-08 11:38:05,897 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:07,159 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:07,379 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2019-09-08 11:38:10,187 WARN L188 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 66 [2019-09-08 11:38:12,538 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-08 11:38:12,831 WARN L188 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2019-09-08 11:38:13,115 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2019-09-08 11:38:14,104 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:18,051 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:19,940 WARN L188 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-09-08 11:38:22,804 WARN L188 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:38:23,392 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2019-09-08 11:38:24,660 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:38:25,125 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2019-09-08 11:38:26,141 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:28,423 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2019-09-08 11:38:29,110 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2019-09-08 11:38:30,181 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-09-08 11:38:30,751 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2019-09-08 11:38:31,006 WARN L188 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2019-09-08 11:38:32,053 WARN L188 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:35,105 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2019-09-08 11:38:35,334 WARN L188 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2019-09-08 11:38:36,645 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2019-09-08 11:38:37,221 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:38:40,872 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2019-09-08 11:38:41,409 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2019-09-08 11:38:43,428 WARN L188 SmtUtils]: Spent 407.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2019-09-08 11:38:46,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:38:46,191 INFO L93 Difference]: Finished difference Result 27856 states and 36005 transitions. [2019-09-08 11:38:46,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 319 states. [2019-09-08 11:38:46,191 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 111 [2019-09-08 11:38:46,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:38:46,212 INFO L225 Difference]: With dead ends: 27856 [2019-09-08 11:38:46,212 INFO L226 Difference]: Without dead ends: 21463 [2019-09-08 11:38:46,224 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 443 GetRequests, 91 SyntacticMatches, 6 SemanticMatches, 346 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52161 ImplicationChecksByTransitivity, 68.4s TimeCoverageRelationStatistics Valid=9255, Invalid=111499, Unknown=2, NotChecked=0, Total=120756 [2019-09-08 11:38:46,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21463 states. [2019-09-08 11:38:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21463 to 5654. [2019-09-08 11:38:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5654 states. [2019-09-08 11:38:48,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5654 states to 5654 states and 7207 transitions. [2019-09-08 11:38:48,351 INFO L78 Accepts]: Start accepts. Automaton has 5654 states and 7207 transitions. Word has length 111 [2019-09-08 11:38:48,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:38:48,351 INFO L475 AbstractCegarLoop]: Abstraction has 5654 states and 7207 transitions. [2019-09-08 11:38:48,351 INFO L476 AbstractCegarLoop]: Interpolant automaton has 31 states. [2019-09-08 11:38:48,351 INFO L276 IsEmpty]: Start isEmpty. Operand 5654 states and 7207 transitions. [2019-09-08 11:38:48,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:38:48,353 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:38:48,353 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 11:38:48,353 INFO L418 AbstractCegarLoop]: === Iteration 30 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:38:48,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:38:48,354 INFO L82 PathProgramCache]: Analyzing trace with hash 1353125581, now seen corresponding path program 1 times [2019-09-08 11:38:48,354 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:38:48,354 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:38:48,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:38:48,355 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:38:48,355 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:38:48,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:38:48,716 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:38:48,717 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:38:48,717 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:38:48,740 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:38:48,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:38:48,822 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 41 conjunts are in the unsatisfiable core [2019-09-08 11:38:48,825 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:38:49,094 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:49,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:49,247 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:49,500 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:49,606 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:38:49,839 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 32 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:38:49,843 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:38:49,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 36 [2019-09-08 11:38:49,845 INFO L454 AbstractCegarLoop]: Interpolant automaton has 36 states [2019-09-08 11:38:49,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2019-09-08 11:38:49,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=173, Invalid=1087, Unknown=0, NotChecked=0, Total=1260 [2019-09-08 11:38:49,845 INFO L87 Difference]: Start difference. First operand 5654 states and 7207 transitions. Second operand 36 states. [2019-09-08 11:38:57,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:38:57,844 INFO L93 Difference]: Finished difference Result 15202 states and 19255 transitions. [2019-09-08 11:38:57,845 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-09-08 11:38:57,845 INFO L78 Accepts]: Start accepts. Automaton has 36 states. Word has length 112 [2019-09-08 11:38:57,845 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:38:57,856 INFO L225 Difference]: With dead ends: 15202 [2019-09-08 11:38:57,856 INFO L226 Difference]: Without dead ends: 11411 [2019-09-08 11:38:57,861 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 167 GetRequests, 93 SyntacticMatches, 2 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1547 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=663, Invalid=4739, Unknown=0, NotChecked=0, Total=5402 [2019-09-08 11:38:57,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11411 states. [2019-09-08 11:39:00,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11411 to 8412. [2019-09-08 11:39:00,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8412 states. [2019-09-08 11:39:00,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8412 states to 8412 states and 10699 transitions. [2019-09-08 11:39:00,979 INFO L78 Accepts]: Start accepts. Automaton has 8412 states and 10699 transitions. Word has length 112 [2019-09-08 11:39:00,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:39:00,980 INFO L475 AbstractCegarLoop]: Abstraction has 8412 states and 10699 transitions. [2019-09-08 11:39:00,980 INFO L476 AbstractCegarLoop]: Interpolant automaton has 36 states. [2019-09-08 11:39:00,980 INFO L276 IsEmpty]: Start isEmpty. Operand 8412 states and 10699 transitions. [2019-09-08 11:39:00,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:39:00,981 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:39:00,981 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 11:39:00,982 INFO L418 AbstractCegarLoop]: === Iteration 31 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:39:00,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:39:00,982 INFO L82 PathProgramCache]: Analyzing trace with hash -360306566, now seen corresponding path program 1 times [2019-09-08 11:39:00,982 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:39:00,982 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:39:00,983 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:39:00,983 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:39:00,984 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:39:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:39:01,798 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 13 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:39:01,798 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:39:01,798 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:39:01,809 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:39:01,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:39:01,904 INFO L256 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 39 conjunts are in the unsatisfiable core [2019-09-08 11:39:01,907 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:39:02,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:39:02,686 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:39:03,106 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 23 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:39:03,115 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:39:03,115 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 22] total 41 [2019-09-08 11:39:03,116 INFO L454 AbstractCegarLoop]: Interpolant automaton has 41 states [2019-09-08 11:39:03,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2019-09-08 11:39:03,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=121, Invalid=1519, Unknown=0, NotChecked=0, Total=1640 [2019-09-08 11:39:03,117 INFO L87 Difference]: Start difference. First operand 8412 states and 10699 transitions. Second operand 41 states. [2019-09-08 11:39:03,472 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2019-09-08 11:39:04,713 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 43 [2019-09-08 11:39:04,901 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-08 11:39:05,100 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 41 [2019-09-08 11:39:06,958 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2019-09-08 11:39:07,252 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 48 [2019-09-08 11:39:07,721 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 50 [2019-09-08 11:39:07,969 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2019-09-08 11:39:08,544 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 65 [2019-09-08 11:39:08,866 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2019-09-08 11:39:09,046 WARN L188 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2019-09-08 11:39:09,340 WARN L188 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:39:09,564 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:39:10,011 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:39:10,467 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-08 11:39:10,720 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 55 [2019-09-08 11:39:11,089 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 75 [2019-09-08 11:39:11,400 WARN L188 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 66 [2019-09-08 11:39:12,070 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 54 [2019-09-08 11:39:17,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:39:17,357 INFO L93 Difference]: Finished difference Result 15351 states and 19544 transitions. [2019-09-08 11:39:17,358 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 61 states. [2019-09-08 11:39:17,358 INFO L78 Accepts]: Start accepts. Automaton has 41 states. Word has length 112 [2019-09-08 11:39:17,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:39:17,367 INFO L225 Difference]: With dead ends: 15351 [2019-09-08 11:39:17,367 INFO L226 Difference]: Without dead ends: 9557 [2019-09-08 11:39:17,374 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 188 GetRequests, 92 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1976 ImplicationChecksByTransitivity, 9.3s TimeCoverageRelationStatistics Valid=925, Invalid=8387, Unknown=0, NotChecked=0, Total=9312 [2019-09-08 11:39:17,379 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9557 states. [2019-09-08 11:39:20,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9557 to 8487. [2019-09-08 11:39:20,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8487 states. [2019-09-08 11:39:20,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8487 states to 8487 states and 10785 transitions. [2019-09-08 11:39:20,454 INFO L78 Accepts]: Start accepts. Automaton has 8487 states and 10785 transitions. Word has length 112 [2019-09-08 11:39:20,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:39:20,455 INFO L475 AbstractCegarLoop]: Abstraction has 8487 states and 10785 transitions. [2019-09-08 11:39:20,455 INFO L476 AbstractCegarLoop]: Interpolant automaton has 41 states. [2019-09-08 11:39:20,455 INFO L276 IsEmpty]: Start isEmpty. Operand 8487 states and 10785 transitions. [2019-09-08 11:39:20,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2019-09-08 11:39:20,456 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:39:20,456 INFO L399 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2019-09-08 11:39:20,456 INFO L418 AbstractCegarLoop]: === Iteration 32 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:39:20,457 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:39:20,457 INFO L82 PathProgramCache]: Analyzing trace with hash 1745215252, now seen corresponding path program 1 times [2019-09-08 11:39:20,457 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:39:20,457 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:39:20,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:39:20,458 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:39:20,458 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:39:20,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:39:21,215 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 22 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:39:21,216 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:39:21,216 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:39:21,227 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:39:21,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:39:21,326 INFO L256 TraceCheckSpWp]: Trace formula consists of 648 conjuncts, 61 conjunts are in the unsatisfiable core [2019-09-08 11:39:21,329 INFO L279 TraceCheckSpWp]: Computing forward predicates...