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.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-112bae1 [2019-09-08 11:42:17,355 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-08 11:42:17,357 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-08 11:42:17,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2019-09-08 11:42:17,379 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-08 11:42:17,380 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-08 11:42:17,380 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-08 11:42:17,382 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-08 11:42:17,382 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-08 11:42:17,383 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-08 11:42:17,385 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-08 11:42:17,387 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-08 11:42:17,389 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-08 11:42:17,390 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-08 11:42:17,391 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-08 11:42:17,391 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-08 11:42:17,394 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-09-08 11:42:17,396 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-08 11:42:17,397 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-08 11:42:17,398 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-08 11:42:17,398 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-08 11:42:17,399 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-08 11:42:17,400 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-08 11:42:17,400 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-08 11:42:17,400 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-08 11:42:17,401 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-08 11:42:17,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-08 11:42:17,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-08 11:42:17,403 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 11:42:17,417 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-08 11:42:17,417 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-08 11:42:17,418 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-09-08 11:42:17,418 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-09-08 11:42:17,419 INFO L138 SettingsManager]: * Use SBE=true [2019-09-08 11:42:17,419 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-08 11:42:17,419 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-08 11:42:17,419 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-09-08 11:42:17,419 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-08 11:42:17,420 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-08 11:42:17,421 INFO L138 SettingsManager]: * Use constant arrays=true [2019-09-08 11:42:17,421 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-08 11:42:17,421 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-08 11:42:17,421 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-08 11:42:17,421 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-09-08 11:42:17,422 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-09-08 11:42:17,422 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-08 11:42:17,422 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-08 11:42:17,422 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-08 11:42:17,422 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-09-08 11:42:17,423 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-09-08 11:42:17,423 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-08 11:42:17,423 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-08 11:42:17,423 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-09-08 11:42:17,451 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-08 11:42:17,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-08 11:42:17,466 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-08 11:42:17,468 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-08 11:42:17,468 INFO L275 PluginConnector]: CDTParser initialized [2019-09-08 11:42:17,469 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-08 11:42:17,536 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3064b9176/5595ed92e3184afda4cd7a9597088c78/FLAG9a13a74ed [2019-09-08 11:42:18,004 INFO L306 CDTParser]: Found 1 translation units. [2019-09-08 11:42:18,004 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/seq-mthreaded-reduced/pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-08 11:42:18,021 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3064b9176/5595ed92e3184afda4cd7a9597088c78/FLAG9a13a74ed [2019-09-08 11:42:18,367 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3064b9176/5595ed92e3184afda4cd7a9597088c78 [2019-09-08 11:42:18,376 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-08 11:42:18,377 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-08 11:42:18,378 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-08 11:42:18,378 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-08 11:42:18,382 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-08 11:42:18,383 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c490221 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18, skipping insertion in model container [2019-09-08 11:42:18,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,393 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-08 11:42:18,450 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-08 11:42:18,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:42:18,836 INFO L188 MainTranslator]: Completed pre-run [2019-09-08 11:42:18,912 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-08 11:42:18,935 INFO L192 MainTranslator]: Completed translation [2019-09-08 11:42:18,936 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18 WrapperNode [2019-09-08 11:42:18,936 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-08 11:42:18,937 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-08 11:42:18,937 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-08 11:42:18,937 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-08 11:42:18,947 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,960 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,982 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:18,999 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:19,006 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (1/1) ... [2019-09-08 11:42:19,010 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-08 11:42:19,010 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-08 11:42:19,010 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-08 11:42:19,011 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-08 11:42:19,012 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (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 11:42:19,071 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-08 11:42:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-08 11:42:19,072 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-08 11:42:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-08 11:42:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_bool [2019-09-08 11:42:19,072 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_char [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assume [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure read [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure write [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure node1 [2019-09-08 11:42:19,073 INFO L130 BoogieDeclarations]: Found specification of procedure node2 [2019-09-08 11:42:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure node3 [2019-09-08 11:42:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure node4 [2019-09-08 11:42:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure init [2019-09-08 11:42:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure check [2019-09-08 11:42:19,074 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-08 11:42:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-08 11:42:19,075 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-08 11:42:19,640 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-08 11:42:19,640 INFO L283 CfgBuilder]: Removed 0 assume(true) statements. [2019-09-08 11:42:19,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:42:19 BoogieIcfgContainer [2019-09-08 11:42:19,642 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-08 11:42:19,643 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-08 11:42:19,643 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-08 11:42:19,646 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-08 11:42:19,646 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 11:42:18" (1/3) ... [2019-09-08 11:42:19,647 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7225f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:42:19, skipping insertion in model container [2019-09-08 11:42:19,647 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 11:42:18" (2/3) ... [2019-09-08 11:42:19,648 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b7225f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 11:42:19, skipping insertion in model container [2019-09-08 11:42:19,648 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 11:42:19" (3/3) ... [2019-09-08 11:42:19,650 INFO L109 eAbstractionObserver]: Analyzing ICFG pals_lcr.4.1.ufo.BOUNDED-8.pals.c.v+cfa-reducer.c [2019-09-08 11:42:19,659 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-08 11:42:19,680 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-08 11:42:19,697 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-08 11:42:19,738 INFO L128 ementStrategyFactory]: Using default assertion order modulation [2019-09-08 11:42:19,739 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-08 11:42:19,739 INFO L378 AbstractCegarLoop]: Hoare is true [2019-09-08 11:42:19,739 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-08 11:42:19,739 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-08 11:42:19,739 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-08 11:42:19,740 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-08 11:42:19,740 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-08 11:42:19,740 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-08 11:42:19,757 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states. [2019-09-08 11:42:19,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-08 11:42:19,765 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:19,766 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:19,768 INFO L418 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:19,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:19,772 INFO L82 PathProgramCache]: Analyzing trace with hash -808091589, now seen corresponding path program 1 times [2019-09-08 11:42:19,773 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:19,774 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:19,818 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:19,819 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:19,819 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:20,141 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 11:42:20,145 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:20,146 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:42:20,151 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:42:20,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:42:20,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:42:20,167 INFO L87 Difference]: Start difference. First operand 84 states. Second operand 3 states. [2019-09-08 11:42:20,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:20,269 INFO L93 Difference]: Finished difference Result 184 states and 293 transitions. [2019-09-08 11:42:20,270 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:42:20,271 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-09-08 11:42:20,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:20,291 INFO L225 Difference]: With dead ends: 184 [2019-09-08 11:42:20,291 INFO L226 Difference]: Without dead ends: 122 [2019-09-08 11:42:20,298 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 11:42:20,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2019-09-08 11:42:20,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2019-09-08 11:42:20,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-08 11:42:20,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 173 transitions. [2019-09-08 11:42:20,376 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 173 transitions. Word has length 51 [2019-09-08 11:42:20,376 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:20,376 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 173 transitions. [2019-09-08 11:42:20,376 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:42:20,377 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 173 transitions. [2019-09-08 11:42:20,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-08 11:42:20,379 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:20,379 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:20,379 INFO L418 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:20,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:20,380 INFO L82 PathProgramCache]: Analyzing trace with hash 611188033, now seen corresponding path program 1 times [2019-09-08 11:42:20,380 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:20,380 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:20,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:20,383 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:20,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:42:20,535 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:20,535 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:42:20,537 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:42:20,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:42:20,538 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:42:20,538 INFO L87 Difference]: Start difference. First operand 120 states and 173 transitions. Second operand 3 states. [2019-09-08 11:42:20,581 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:20,582 INFO L93 Difference]: Finished difference Result 284 states and 433 transitions. [2019-09-08 11:42:20,583 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:42:20,584 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-08 11:42:20,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:20,589 INFO L225 Difference]: With dead ends: 284 [2019-09-08 11:42:20,590 INFO L226 Difference]: Without dead ends: 194 [2019-09-08 11:42:20,593 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 11:42:20,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2019-09-08 11:42:20,638 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 192. [2019-09-08 11:42:20,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 192 states. [2019-09-08 11:42:20,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 192 states to 192 states and 287 transitions. [2019-09-08 11:42:20,642 INFO L78 Accepts]: Start accepts. Automaton has 192 states and 287 transitions. Word has length 52 [2019-09-08 11:42:20,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:20,642 INFO L475 AbstractCegarLoop]: Abstraction has 192 states and 287 transitions. [2019-09-08 11:42:20,642 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:42:20,643 INFO L276 IsEmpty]: Start isEmpty. Operand 192 states and 287 transitions. [2019-09-08 11:42:20,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-08 11:42:20,644 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:20,645 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:20,645 INFO L418 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:20,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:20,645 INFO L82 PathProgramCache]: Analyzing trace with hash 253553889, now seen corresponding path program 1 times [2019-09-08 11:42:20,646 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:20,646 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:20,647 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,648 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:20,648 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:20,784 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 11:42:20,785 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:20,785 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:42:20,786 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:42:20,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:42:20,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:42:20,787 INFO L87 Difference]: Start difference. First operand 192 states and 287 transitions. Second operand 3 states. [2019-09-08 11:42:20,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:20,874 INFO L93 Difference]: Finished difference Result 484 states and 749 transitions. [2019-09-08 11:42:20,876 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:42:20,876 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-08 11:42:20,877 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:20,885 INFO L225 Difference]: With dead ends: 484 [2019-09-08 11:42:20,885 INFO L226 Difference]: Without dead ends: 322 [2019-09-08 11:42:20,887 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 11:42:20,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 322 states. [2019-09-08 11:42:20,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 322 to 320. [2019-09-08 11:42:20,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 320 states. [2019-09-08 11:42:20,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 487 transitions. [2019-09-08 11:42:20,936 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 487 transitions. Word has length 53 [2019-09-08 11:42:20,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:20,937 INFO L475 AbstractCegarLoop]: Abstraction has 320 states and 487 transitions. [2019-09-08 11:42:20,937 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:42:20,937 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 487 transitions. [2019-09-08 11:42:20,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2019-09-08 11:42:20,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:20,939 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:20,939 INFO L418 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:20,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:20,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1053117289, now seen corresponding path program 1 times [2019-09-08 11:42:20,940 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:20,940 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:20,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,942 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:20,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:21,040 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 11:42:21,040 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:21,041 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:42:21,041 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:42:21,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:42:21,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:42:21,043 INFO L87 Difference]: Start difference. First operand 320 states and 487 transitions. Second operand 3 states. [2019-09-08 11:42:21,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:21,084 INFO L93 Difference]: Finished difference Result 836 states and 1297 transitions. [2019-09-08 11:42:21,085 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:42:21,085 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 54 [2019-09-08 11:42:21,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:21,089 INFO L225 Difference]: With dead ends: 836 [2019-09-08 11:42:21,089 INFO L226 Difference]: Without dead ends: 546 [2019-09-08 11:42:21,092 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 11:42:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 546 states. [2019-09-08 11:42:21,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 546 to 544. [2019-09-08 11:42:21,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 544 states. [2019-09-08 11:42:21,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 544 states to 544 states and 831 transitions. [2019-09-08 11:42:21,130 INFO L78 Accepts]: Start accepts. Automaton has 544 states and 831 transitions. Word has length 54 [2019-09-08 11:42:21,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:21,131 INFO L475 AbstractCegarLoop]: Abstraction has 544 states and 831 transitions. [2019-09-08 11:42:21,131 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:42:21,131 INFO L276 IsEmpty]: Start isEmpty. Operand 544 states and 831 transitions. [2019-09-08 11:42:21,132 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:42:21,132 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:21,133 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:21,133 INFO L418 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:21,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:21,133 INFO L82 PathProgramCache]: Analyzing trace with hash -935080225, now seen corresponding path program 1 times [2019-09-08 11:42:21,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:21,134 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:21,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,135 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:21,135 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:21,229 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 11:42:21,230 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:21,230 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:42:21,230 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:42:21,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:42:21,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:42:21,231 INFO L87 Difference]: Start difference. First operand 544 states and 831 transitions. Second operand 5 states. [2019-09-08 11:42:21,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:21,478 INFO L93 Difference]: Finished difference Result 1572 states and 2433 transitions. [2019-09-08 11:42:21,478 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:42:21,478 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2019-09-08 11:42:21,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:21,485 INFO L225 Difference]: With dead ends: 1572 [2019-09-08 11:42:21,485 INFO L226 Difference]: Without dead ends: 1058 [2019-09-08 11:42:21,487 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 11:42:21,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1058 states. [2019-09-08 11:42:21,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1058 to 1056. [2019-09-08 11:42:21,588 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-09-08 11:42:21,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1623 transitions. [2019-09-08 11:42:21,594 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1623 transitions. Word has length 55 [2019-09-08 11:42:21,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:21,596 INFO L475 AbstractCegarLoop]: Abstraction has 1056 states and 1623 transitions. [2019-09-08 11:42:21,597 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:42:21,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1623 transitions. [2019-09-08 11:42:21,606 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:42:21,607 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:21,607 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:21,610 INFO L418 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:21,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:21,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1895815514, now seen corresponding path program 1 times [2019-09-08 11:42:21,610 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:21,611 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:21,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,612 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:21,612 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:21,711 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 11:42:21,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:21,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:42:21,712 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:42:21,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:42:21,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:42:21,713 INFO L87 Difference]: Start difference. First operand 1056 states and 1623 transitions. Second operand 5 states. [2019-09-08 11:42:21,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:21,874 INFO L93 Difference]: Finished difference Result 2082 states and 3216 transitions. [2019-09-08 11:42:21,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-08 11:42:21,875 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 55 [2019-09-08 11:42:21,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:21,881 INFO L225 Difference]: With dead ends: 2082 [2019-09-08 11:42:21,882 INFO L226 Difference]: Without dead ends: 1056 [2019-09-08 11:42:21,884 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 11:42:21,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1056 states. [2019-09-08 11:42:21,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1056 to 1056. [2019-09-08 11:42:21,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1056 states. [2019-09-08 11:42:21,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1056 states to 1056 states and 1607 transitions. [2019-09-08 11:42:21,951 INFO L78 Accepts]: Start accepts. Automaton has 1056 states and 1607 transitions. Word has length 55 [2019-09-08 11:42:21,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:21,953 INFO L475 AbstractCegarLoop]: Abstraction has 1056 states and 1607 transitions. [2019-09-08 11:42:21,953 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:42:21,954 INFO L276 IsEmpty]: Start isEmpty. Operand 1056 states and 1607 transitions. [2019-09-08 11:42:21,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2019-09-08 11:42:21,955 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:21,955 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:21,955 INFO L418 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:21,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:21,956 INFO L82 PathProgramCache]: Analyzing trace with hash 53784981, now seen corresponding path program 1 times [2019-09-08 11:42:21,956 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:21,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:21,962 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,963 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:21,963 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:21,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:22,105 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 11:42:22,105 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:22,105 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:42:22,106 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:42:22,106 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:42:22,107 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:22,107 INFO L87 Difference]: Start difference. First operand 1056 states and 1607 transitions. Second operand 6 states. [2019-09-08 11:42:22,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:22,621 INFO L93 Difference]: Finished difference Result 6186 states and 9492 transitions. [2019-09-08 11:42:22,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:22,621 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 55 [2019-09-08 11:42:22,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:22,657 INFO L225 Difference]: With dead ends: 6186 [2019-09-08 11:42:22,657 INFO L226 Difference]: Without dead ends: 5160 [2019-09-08 11:42:22,663 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:42:22,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5160 states. [2019-09-08 11:42:22,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5160 to 2080. [2019-09-08 11:42:22,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2080 states. [2019-09-08 11:42:22,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2080 states to 2080 states and 3119 transitions. [2019-09-08 11:42:22,933 INFO L78 Accepts]: Start accepts. Automaton has 2080 states and 3119 transitions. Word has length 55 [2019-09-08 11:42:22,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:22,936 INFO L475 AbstractCegarLoop]: Abstraction has 2080 states and 3119 transitions. [2019-09-08 11:42:22,936 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:42:22,936 INFO L276 IsEmpty]: Start isEmpty. Operand 2080 states and 3119 transitions. [2019-09-08 11:42:22,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-08 11:42:22,939 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:22,940 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:22,941 INFO L418 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:22,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:22,941 INFO L82 PathProgramCache]: Analyzing trace with hash -745433840, now seen corresponding path program 1 times [2019-09-08 11:42:22,941 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:22,941 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:22,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:22,943 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:22,943 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:22,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:23,038 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 11:42:23,039 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:23,039 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:42:23,040 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:42:23,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:42:23,041 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:42:23,041 INFO L87 Difference]: Start difference. First operand 2080 states and 3119 transitions. Second operand 3 states. [2019-09-08 11:42:23,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:23,273 INFO L93 Difference]: Finished difference Result 4630 states and 6947 transitions. [2019-09-08 11:42:23,273 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:42:23,273 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-09-08 11:42:23,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:23,288 INFO L225 Difference]: With dead ends: 4630 [2019-09-08 11:42:23,289 INFO L226 Difference]: Without dead ends: 2580 [2019-09-08 11:42:23,294 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 11:42:23,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2019-09-08 11:42:23,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 2578. [2019-09-08 11:42:23,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2019-09-08 11:42:23,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3825 transitions. [2019-09-08 11:42:23,655 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3825 transitions. Word has length 57 [2019-09-08 11:42:23,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:23,656 INFO L475 AbstractCegarLoop]: Abstraction has 2578 states and 3825 transitions. [2019-09-08 11:42:23,656 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:42:23,656 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3825 transitions. [2019-09-08 11:42:23,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-08 11:42:23,657 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:23,657 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:23,657 INFO L418 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:23,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:23,657 INFO L82 PathProgramCache]: Analyzing trace with hash -725384497, now seen corresponding path program 1 times [2019-09-08 11:42:23,658 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:23,658 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:23,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:23,659 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:23,659 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:23,896 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 11:42:23,897 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:23,897 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:42:23,897 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:42:23,898 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:42:23,898 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:23,898 INFO L87 Difference]: Start difference. First operand 2578 states and 3825 transitions. Second operand 6 states. [2019-09-08 11:42:24,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:24,404 INFO L93 Difference]: Finished difference Result 7666 states and 11477 transitions. [2019-09-08 11:42:24,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:24,404 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-08 11:42:24,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:24,431 INFO L225 Difference]: With dead ends: 7666 [2019-09-08 11:42:24,431 INFO L226 Difference]: Without dead ends: 5120 [2019-09-08 11:42:24,437 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:24,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5120 states. [2019-09-08 11:42:24,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5120 to 2578. [2019-09-08 11:42:24,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2578 states. [2019-09-08 11:42:24,669 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2578 states to 2578 states and 3785 transitions. [2019-09-08 11:42:24,669 INFO L78 Accepts]: Start accepts. Automaton has 2578 states and 3785 transitions. Word has length 57 [2019-09-08 11:42:24,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:24,670 INFO L475 AbstractCegarLoop]: Abstraction has 2578 states and 3785 transitions. [2019-09-08 11:42:24,670 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:42:24,670 INFO L276 IsEmpty]: Start isEmpty. Operand 2578 states and 3785 transitions. [2019-09-08 11:42:24,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-08 11:42:24,670 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:24,671 INFO L399 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:24,671 INFO L418 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:24,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:24,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1013992321, now seen corresponding path program 1 times [2019-09-08 11:42:24,671 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:24,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:24,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:24,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:24,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:24,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:24,761 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 11:42:24,762 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:24,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-08 11:42:24,762 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-08 11:42:24,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-08 11:42:24,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-08 11:42:24,763 INFO L87 Difference]: Start difference. First operand 2578 states and 3785 transitions. Second operand 5 states. [2019-09-08 11:42:25,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:25,258 INFO L93 Difference]: Finished difference Result 5048 states and 7376 transitions. [2019-09-08 11:42:25,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:25,258 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 58 [2019-09-08 11:42:25,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:25,284 INFO L225 Difference]: With dead ends: 5048 [2019-09-08 11:42:25,284 INFO L226 Difference]: Without dead ends: 5046 [2019-09-08 11:42:25,291 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 11:42:25,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5046 states. [2019-09-08 11:42:25,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5046 to 2722. [2019-09-08 11:42:25,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2722 states. [2019-09-08 11:42:25,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2722 states to 2722 states and 3921 transitions. [2019-09-08 11:42:25,725 INFO L78 Accepts]: Start accepts. Automaton has 2722 states and 3921 transitions. Word has length 58 [2019-09-08 11:42:25,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:25,726 INFO L475 AbstractCegarLoop]: Abstraction has 2722 states and 3921 transitions. [2019-09-08 11:42:25,726 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-08 11:42:25,726 INFO L276 IsEmpty]: Start isEmpty. Operand 2722 states and 3921 transitions. [2019-09-08 11:42:25,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 11:42:25,731 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:25,731 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:25,732 INFO L418 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:25,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:25,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1387581406, now seen corresponding path program 1 times [2019-09-08 11:42:25,733 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:25,733 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:25,734 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:25,735 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:25,735 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:25,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:25,947 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:42:25,947 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:25,948 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:42:25,948 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:42:25,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:42:25,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:25,949 INFO L87 Difference]: Start difference. First operand 2722 states and 3921 transitions. Second operand 6 states. [2019-09-08 11:42:26,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:26,922 INFO L93 Difference]: Finished difference Result 7612 states and 11230 transitions. [2019-09-08 11:42:26,922 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:26,923 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-08 11:42:26,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:26,998 INFO L225 Difference]: With dead ends: 7612 [2019-09-08 11:42:26,998 INFO L226 Difference]: Without dead ends: 6522 [2019-09-08 11:42:27,008 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:42:27,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6522 states. [2019-09-08 11:42:27,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6522 to 3810. [2019-09-08 11:42:27,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3810 states. [2019-09-08 11:42:27,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3810 states to 3810 states and 5529 transitions. [2019-09-08 11:42:27,583 INFO L78 Accepts]: Start accepts. Automaton has 3810 states and 5529 transitions. Word has length 80 [2019-09-08 11:42:27,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:27,583 INFO L475 AbstractCegarLoop]: Abstraction has 3810 states and 5529 transitions. [2019-09-08 11:42:27,583 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:42:27,584 INFO L276 IsEmpty]: Start isEmpty. Operand 3810 states and 5529 transitions. [2019-09-08 11:42:27,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 11:42:27,586 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:27,587 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:27,587 INFO L418 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:27,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:27,587 INFO L82 PathProgramCache]: Analyzing trace with hash 921047540, now seen corresponding path program 1 times [2019-09-08 11:42:27,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:27,588 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:27,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:27,589 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:27,589 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:27,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:27,705 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2019-09-08 11:42:27,705 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:27,706 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:42:27,706 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:42:27,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:42:27,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:27,708 INFO L87 Difference]: Start difference. First operand 3810 states and 5529 transitions. Second operand 6 states. [2019-09-08 11:42:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:29,100 INFO L93 Difference]: Finished difference Result 8964 states and 13210 transitions. [2019-09-08 11:42:29,101 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:29,101 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-08 11:42:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:29,121 INFO L225 Difference]: With dead ends: 8964 [2019-09-08 11:42:29,121 INFO L226 Difference]: Without dead ends: 7610 [2019-09-08 11:42:29,127 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:42:29,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7610 states. [2019-09-08 11:42:29,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7610 to 5162. [2019-09-08 11:42:29,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5162 states. [2019-09-08 11:42:29,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5162 states to 5162 states and 7501 transitions. [2019-09-08 11:42:29,882 INFO L78 Accepts]: Start accepts. Automaton has 5162 states and 7501 transitions. Word has length 80 [2019-09-08 11:42:29,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:29,883 INFO L475 AbstractCegarLoop]: Abstraction has 5162 states and 7501 transitions. [2019-09-08 11:42:29,883 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:42:29,883 INFO L276 IsEmpty]: Start isEmpty. Operand 5162 states and 7501 transitions. [2019-09-08 11:42:29,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 11:42:29,886 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:29,886 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:29,886 INFO L418 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:29,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:29,887 INFO L82 PathProgramCache]: Analyzing trace with hash 897302318, now seen corresponding path program 1 times [2019-09-08 11:42:29,887 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:29,887 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:29,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:29,889 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:29,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:29,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:30,011 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 11:42:30,012 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:42:30,012 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-08 11:42:30,012 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-08 11:42:30,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-08 11:42:30,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:30,013 INFO L87 Difference]: Start difference. First operand 5162 states and 7501 transitions. Second operand 6 states. [2019-09-08 11:42:31,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:31,029 INFO L93 Difference]: Finished difference Result 10316 states and 15182 transitions. [2019-09-08 11:42:31,029 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-08 11:42:31,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 80 [2019-09-08 11:42:31,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:31,052 INFO L225 Difference]: With dead ends: 10316 [2019-09-08 11:42:31,052 INFO L226 Difference]: Without dead ends: 8962 [2019-09-08 11:42:31,058 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2019-09-08 11:42:31,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8962 states. [2019-09-08 11:42:31,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8962 to 6514. [2019-09-08 11:42:31,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6514 states. [2019-09-08 11:42:31,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6514 states to 6514 states and 9473 transitions. [2019-09-08 11:42:31,907 INFO L78 Accepts]: Start accepts. Automaton has 6514 states and 9473 transitions. Word has length 80 [2019-09-08 11:42:31,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:31,908 INFO L475 AbstractCegarLoop]: Abstraction has 6514 states and 9473 transitions. [2019-09-08 11:42:31,908 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-08 11:42:31,908 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states and 9473 transitions. [2019-09-08 11:42:31,911 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2019-09-08 11:42:31,911 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:31,911 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:31,912 INFO L418 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:31,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:31,912 INFO L82 PathProgramCache]: Analyzing trace with hash 524776424, now seen corresponding path program 1 times [2019-09-08 11:42:31,912 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:31,912 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:31,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:31,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:31,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:31,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:32,006 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 11:42:32,006 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:42:32,007 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:42:32,028 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:32,199 INFO L256 TraceCheckSpWp]: Trace formula consists of 621 conjuncts, 5 conjunts are in the unsatisfiable core [2019-09-08 11:42:32,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:42:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2019-09-08 11:42:32,354 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-08 11:42:32,354 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2019-09-08 11:42:32,355 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-08 11:42:32,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-08 11:42:32,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2019-09-08 11:42:32,356 INFO L87 Difference]: Start difference. First operand 6514 states and 9473 transitions. Second operand 9 states. [2019-09-08 11:42:35,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:35,892 INFO L93 Difference]: Finished difference Result 22960 states and 33944 transitions. [2019-09-08 11:42:35,893 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2019-09-08 11:42:35,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 80 [2019-09-08 11:42:35,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:35,937 INFO L225 Difference]: With dead ends: 22960 [2019-09-08 11:42:35,937 INFO L226 Difference]: Without dead ends: 21606 [2019-09-08 11:42:35,947 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=123, Invalid=219, Unknown=0, NotChecked=0, Total=342 [2019-09-08 11:42:35,973 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21606 states. [2019-09-08 11:42:37,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21606 to 12938. [2019-09-08 11:42:37,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12938 states. [2019-09-08 11:42:37,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12938 states to 12938 states and 18937 transitions. [2019-09-08 11:42:37,272 INFO L78 Accepts]: Start accepts. Automaton has 12938 states and 18937 transitions. Word has length 80 [2019-09-08 11:42:37,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:37,273 INFO L475 AbstractCegarLoop]: Abstraction has 12938 states and 18937 transitions. [2019-09-08 11:42:37,273 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-08 11:42:37,273 INFO L276 IsEmpty]: Start isEmpty. Operand 12938 states and 18937 transitions. [2019-09-08 11:42:37,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2019-09-08 11:42:37,276 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:37,276 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:37,277 INFO L418 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:37,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:37,277 INFO L82 PathProgramCache]: Analyzing trace with hash -1732590227, now seen corresponding path program 1 times [2019-09-08 11:42:37,277 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:37,277 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:37,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:37,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:37,279 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:37,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2019-09-08 11:42:37,384 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:42:37,384 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) [2019-09-08 11:42:37,401 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-09-08 11:42:37,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:37,510 INFO L256 TraceCheckSpWp]: Trace formula consists of 620 conjuncts, 21 conjunts are in the unsatisfiable core [2019-09-08 11:42:37,516 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:42:37,577 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 5 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:42:37,590 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:42:37,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6] total 8 [2019-09-08 11:42:37,593 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-09-08 11:42:37,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-09-08 11:42:37,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:42:37,594 INFO L87 Difference]: Start difference. First operand 12938 states and 18937 transitions. Second operand 8 states. [2019-09-08 11:42:39,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:39,913 INFO L93 Difference]: Finished difference Result 35130 states and 51352 transitions. [2019-09-08 11:42:39,914 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-08 11:42:39,914 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 81 [2019-09-08 11:42:39,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:39,964 INFO L225 Difference]: With dead ends: 35130 [2019-09-08 11:42:39,964 INFO L226 Difference]: Without dead ends: 22472 [2019-09-08 11:42:40,000 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=30, Unknown=0, NotChecked=0, Total=56 [2019-09-08 11:42:40,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22472 states. [2019-09-08 11:42:41,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22472 to 22442. [2019-09-08 11:42:41,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22442 states. [2019-09-08 11:42:41,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22442 states to 22442 states and 32049 transitions. [2019-09-08 11:42:41,894 INFO L78 Accepts]: Start accepts. Automaton has 22442 states and 32049 transitions. Word has length 81 [2019-09-08 11:42:41,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:42:41,894 INFO L475 AbstractCegarLoop]: Abstraction has 22442 states and 32049 transitions. [2019-09-08 11:42:41,894 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-09-08 11:42:41,894 INFO L276 IsEmpty]: Start isEmpty. Operand 22442 states and 32049 transitions. [2019-09-08 11:42:41,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-08 11:42:41,897 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:42:41,897 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:42:41,898 INFO L418 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:42:41,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:42:41,898 INFO L82 PathProgramCache]: Analyzing trace with hash -833435917, now seen corresponding path program 1 times [2019-09-08 11:42:41,898 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:42:41,898 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:42:41,899 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:41,899 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:41,900 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:42:41,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:42,105 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 11:42:42,105 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:42:42,106 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 11:42:42,136 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:42:42,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:42:42,271 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:42:42,284 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:42:42,432 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:42:42,808 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 11:42:42,821 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:42:42,821 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:42:42,823 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:42:42,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:42:42,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:42:42,824 INFO L87 Difference]: Start difference. First operand 22442 states and 32049 transitions. Second operand 17 states. [2019-09-08 11:42:43,756 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2019-09-08 11:42:56,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:42:56,079 INFO L93 Difference]: Finished difference Result 122510 states and 172197 transitions. [2019-09-08 11:42:56,079 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2019-09-08 11:42:56,079 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 82 [2019-09-08 11:42:56,079 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:42:56,360 INFO L225 Difference]: With dead ends: 122510 [2019-09-08 11:42:56,360 INFO L226 Difference]: Without dead ends: 100100 [2019-09-08 11:42:56,432 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 75 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 946 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=843, Invalid=2579, Unknown=0, NotChecked=0, Total=3422 [2019-09-08 11:42:56,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100100 states. [2019-09-08 11:43:02,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100100 to 38226. [2019-09-08 11:43:02,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38226 states. [2019-09-08 11:43:02,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38226 states to 38226 states and 54145 transitions. [2019-09-08 11:43:02,089 INFO L78 Accepts]: Start accepts. Automaton has 38226 states and 54145 transitions. Word has length 82 [2019-09-08 11:43:02,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:43:02,090 INFO L475 AbstractCegarLoop]: Abstraction has 38226 states and 54145 transitions. [2019-09-08 11:43:02,090 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:43:02,090 INFO L276 IsEmpty]: Start isEmpty. Operand 38226 states and 54145 transitions. [2019-09-08 11:43:02,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2019-09-08 11:43:02,094 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:43:02,095 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:43:02,095 INFO L418 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:43:02,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:43:02,095 INFO L82 PathProgramCache]: Analyzing trace with hash -1229707033, now seen corresponding path program 1 times [2019-09-08 11:43:02,096 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:43:02,096 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:43:02,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:02,097 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:43:02,097 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:43:02,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:43:02,294 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 11:43:02,294 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:43:02,295 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 11:43:02,310 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:43:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:43:02,396 INFO L256 TraceCheckSpWp]: Trace formula consists of 625 conjuncts, 22 conjunts are in the unsatisfiable core [2019-09-08 11:43:02,400 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:43:02,547 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:43:03,501 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 11:43:03,505 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:43:03,505 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 11] total 19 [2019-09-08 11:43:03,505 INFO L454 AbstractCegarLoop]: Interpolant automaton has 19 states [2019-09-08 11:43:03,506 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2019-09-08 11:43:03,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=303, Unknown=0, NotChecked=0, Total=342 [2019-09-08 11:43:03,506 INFO L87 Difference]: Start difference. First operand 38226 states and 54145 transitions. Second operand 19 states. [2019-09-08 11:43:04,120 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-08 11:43:04,402 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2019-09-08 11:43:04,777 WARN L188 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-08 11:43:05,145 WARN L188 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 11:43:05,477 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 11:43:05,842 WARN L188 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 11:43:06,426 WARN L188 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 11:43:06,821 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 11:43:07,150 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2019-09-08 11:43:07,538 WARN L188 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 11:43:07,942 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 68 [2019-09-08 11:43:08,343 WARN L188 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-08 11:43:08,718 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 11:43:09,088 WARN L188 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:43:09,409 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 11:43:09,795 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 11:43:10,201 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 11:43:10,523 WARN L188 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 11:43:10,883 WARN L188 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 11:43:11,290 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 11:43:11,709 WARN L188 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:12,091 WARN L188 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-08 11:43:12,395 WARN L188 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 11:43:12,797 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 11:43:13,343 WARN L188 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-08 11:43:13,753 WARN L188 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 11:43:14,116 WARN L188 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 11:43:14,491 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 11:43:14,864 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:43:15,253 WARN L188 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:15,607 WARN L188 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 11:43:15,995 WARN L188 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 11:43:16,401 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-08 11:43:16,898 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 11:43:18,195 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-08 11:43:18,602 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 11:43:19,111 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 11:43:19,536 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:20,477 WARN L188 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 81 [2019-09-08 11:43:20,806 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2019-09-08 11:43:21,218 WARN L188 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 80 [2019-09-08 11:43:21,574 WARN L188 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 84 [2019-09-08 11:43:21,938 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 77 [2019-09-08 11:43:22,265 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2019-09-08 11:43:22,602 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 74 [2019-09-08 11:43:22,928 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 11:43:23,232 WARN L188 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-08 11:43:23,557 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2019-09-08 11:43:23,938 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2019-09-08 11:43:24,271 WARN L188 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2019-09-08 11:43:24,595 WARN L188 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2019-09-08 11:43:24,931 WARN L188 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:25,273 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 11:43:25,591 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2019-09-08 11:43:25,950 WARN L188 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 71 [2019-09-08 11:43:26,388 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 11:43:26,864 WARN L188 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:27,242 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:27,635 WARN L188 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 11:43:28,203 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-08 11:43:28,667 WARN L188 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 11:43:29,040 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:29,436 WARN L188 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-08 11:43:29,815 WARN L188 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:43:30,135 WARN L188 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:43:30,371 WARN L188 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:43:30,762 WARN L188 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2019-09-08 11:43:31,182 WARN L188 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:31,419 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2019-09-08 11:43:31,774 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 11:43:32,110 WARN L188 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 11:43:32,498 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2019-09-08 11:43:32,738 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-09-08 11:43:32,976 WARN L188 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:43:33,221 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:43:33,648 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-08 11:43:34,054 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 11:43:34,449 WARN L188 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:34,902 WARN L188 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-08 11:43:35,200 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 11:43:35,577 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:43:35,926 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 11:43:36,356 WARN L188 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:43:36,786 WARN L188 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 11:43:37,248 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 83 [2019-09-08 11:43:37,594 WARN L188 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 11:43:38,094 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:43:38,505 WARN L188 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 11:43:39,071 WARN L188 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2019-09-08 11:43:39,396 WARN L188 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 11:43:39,706 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2019-09-08 11:43:39,895 WARN L188 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:43:40,147 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 69 [2019-09-08 11:43:40,346 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:43:40,906 WARN L188 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 78 [2019-09-08 11:43:41,455 WARN L188 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 81 [2019-09-08 11:43:42,102 WARN L188 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2019-09-08 11:43:42,461 WARN L188 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 11:43:43,028 WARN L188 SmtUtils]: Spent 485.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 85 [2019-09-08 11:43:43,399 WARN L188 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 11:43:43,831 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 74 [2019-09-08 11:43:44,049 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 62 [2019-09-08 11:43:44,267 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:43:44,710 WARN L188 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 11:43:45,226 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 87 [2019-09-08 11:43:45,501 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:43:45,733 WARN L188 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:43:46,177 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:43:46,427 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:43:46,825 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 77 [2019-09-08 11:43:47,235 WARN L188 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 11:43:47,712 WARN L188 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:48,021 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:43:48,327 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:43:48,797 WARN L188 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 80 [2019-09-08 11:43:49,267 WARN L188 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 83 [2019-09-08 11:43:49,889 WARN L188 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 83 [2019-09-08 11:43:50,371 WARN L188 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-08 11:43:51,115 WARN L188 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 86 [2019-09-08 11:43:51,634 WARN L188 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 89 [2019-09-08 11:43:55,379 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:43:55,801 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 11:43:56,039 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:43:56,281 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:43:56,718 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:43:57,319 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:43:57,580 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:43:57,852 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:43:58,101 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:43:58,716 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:44:00,664 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:01,160 WARN L188 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:01,512 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 65 [2019-09-08 11:44:01,659 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 55 [2019-09-08 11:44:02,099 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:02,358 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:02,713 WARN L188 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:03,058 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:44:03,202 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:44:03,579 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:03,975 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:44:04,177 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 54 [2019-09-08 11:44:04,417 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:44:04,908 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:05,221 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:05,506 WARN L188 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:05,745 WARN L188 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:44:06,157 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:44:06,355 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:44:06,723 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-08 11:44:07,141 WARN L188 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:44:07,287 WARN L188 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:44:07,636 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:44:08,210 WARN L188 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:08,500 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:44:08,796 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:09,079 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:44:09,532 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:09,686 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:44:09,902 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-08 11:44:10,271 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:44:10,706 WARN L188 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-08 11:44:11,230 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:44:11,410 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-08 11:44:11,637 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:44:11,887 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:44:12,467 WARN L188 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:44:12,809 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:13,072 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:44:13,699 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:13,914 WARN L188 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:14,199 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:44:14,416 WARN L188 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:44:14,645 WARN L188 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-08 11:44:14,869 WARN L188 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:15,039 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2019-09-08 11:44:15,749 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:44:16,060 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:16,712 WARN L188 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:44:16,988 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:44:17,642 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:44:18,068 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 60 [2019-09-08 11:44:18,260 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:44:18,559 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:44:19,157 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:19,378 WARN L188 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:44:19,657 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:44:20,216 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:44:20,638 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:20,882 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2019-09-08 11:44:21,028 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 58 [2019-09-08 11:44:21,449 WARN L188 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:21,972 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:22,215 WARN L188 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:22,534 WARN L188 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 11:44:22,865 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:23,326 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-08 11:44:23,587 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:23,738 WARN L188 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:44:24,029 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2019-09-08 11:44:24,434 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2019-09-08 11:44:24,725 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:44:25,052 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-08 11:44:25,360 WARN L188 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:44:25,904 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:26,185 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 68 [2019-09-08 11:44:26,624 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:27,459 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:27,733 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:44:27,959 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-08 11:44:28,302 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:28,549 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-08 11:44:28,753 WARN L188 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2019-09-08 11:44:29,159 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:44:29,565 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-08 11:44:29,810 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-08 11:44:30,221 WARN L188 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:44:30,369 WARN L188 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:44:30,768 WARN L188 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 71 [2019-09-08 11:44:31,372 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 11:44:31,660 WARN L188 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:44:31,836 WARN L188 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:44:32,546 WARN L188 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:44:32,998 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2019-09-08 11:44:33,350 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 74 [2019-09-08 11:44:34,076 WARN L188 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 71 [2019-09-08 11:44:34,562 WARN L188 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2019-09-08 11:44:35,302 WARN L188 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2019-09-08 11:44:35,551 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2019-09-08 11:44:35,897 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 63 [2019-09-08 11:44:36,086 WARN L188 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2019-09-08 11:44:36,766 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2019-09-08 11:44:37,047 WARN L188 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 11:44:37,464 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-08 11:44:38,545 WARN L188 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2019-09-08 11:44:39,266 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:44:45,451 WARN L188 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:44:47,230 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:44:48,845 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 60 [2019-09-08 11:44:49,079 WARN L188 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-08 11:44:49,259 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 11:44:50,156 WARN L188 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 11:44:51,204 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2019-09-08 11:44:52,006 WARN L188 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:56,096 WARN L188 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 66 [2019-09-08 11:44:56,359 WARN L188 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2019-09-08 11:44:56,617 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2019-09-08 11:44:57,981 WARN L188 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2019-09-08 11:44:58,270 WARN L188 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2019-09-08 11:44:58,472 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:44:58,654 WARN L188 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:44:58,941 WARN L188 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 63 [2019-09-08 11:44:59,157 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:44:59,930 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 43 [2019-09-08 11:45:00,278 WARN L188 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 11:45:00,449 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 46 [2019-09-08 11:45:00,764 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-08 11:45:01,017 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 61 [2019-09-08 11:45:01,246 WARN L188 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2019-09-08 11:45:01,876 WARN L188 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:45:02,112 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 55 [2019-09-08 11:45:02,852 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 49 [2019-09-08 11:45:03,057 WARN L188 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 52 [2019-09-08 11:45:03,294 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 11:45:03,503 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 11:45:03,815 WARN L188 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:45:03,994 WARN L188 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2019-09-08 11:45:04,341 WARN L188 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 11:45:05,046 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2019-09-08 11:45:05,465 WARN L188 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2019-09-08 11:45:05,712 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 11:45:05,913 WARN L188 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 47 [2019-09-08 11:45:06,246 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 50 [2019-09-08 11:45:06,574 WARN L188 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:45:06,882 WARN L188 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2019-09-08 11:45:07,062 WARN L188 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 40 [2019-09-08 11:45:07,311 WARN L188 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2019-09-08 11:45:08,045 WARN L188 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 76 [2019-09-08 11:45:08,509 WARN L188 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 79 [2019-09-08 11:45:08,808 WARN L188 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2019-09-08 11:45:09,048 WARN L188 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 56 [2019-09-08 11:45:09,444 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:45:09,666 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2019-09-08 11:45:09,866 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2019-09-08 11:45:10,063 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 11:45:10,753 WARN L188 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-08 11:45:11,022 WARN L188 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 61 [2019-09-08 11:45:11,248 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:45:11,509 WARN L188 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 64 [2019-09-08 11:45:11,743 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:45:11,975 WARN L188 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 11:45:12,213 WARN L188 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:12,446 WARN L188 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2019-09-08 11:45:12,637 WARN L188 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2019-09-08 11:45:13,317 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-08 11:45:13,612 WARN L188 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2019-09-08 11:45:13,913 WARN L188 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2019-09-08 11:45:14,200 WARN L188 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:14,441 WARN L188 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2019-09-08 11:45:17,175 WARN L188 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2019-09-08 11:45:17,533 WARN L188 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 11:45:17,815 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 11:45:18,065 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 11:45:18,374 WARN L188 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:18,577 WARN L188 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 58 [2019-09-08 11:45:18,806 WARN L188 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 61 [2019-09-08 11:45:19,438 WARN L188 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:45:19,867 WARN L188 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 11:45:20,160 WARN L188 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:45:21,108 WARN L188 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2019-09-08 11:45:21,485 WARN L188 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:45:21,736 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2019-09-08 11:45:22,056 WARN L188 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:45:22,832 WARN L188 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-08 11:45:23,255 WARN L188 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2019-09-08 11:45:23,550 WARN L188 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:45:23,864 WARN L188 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:45:24,875 WARN L188 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2019-09-08 11:45:25,137 WARN L188 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:25,832 WARN L188 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:45:26,117 WARN L188 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 67 [2019-09-08 11:45:37,145 WARN L188 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 65 [2019-09-08 11:45:37,435 WARN L188 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2019-09-08 11:45:38,687 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2019-09-08 11:45:39,025 WARN L188 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2019-09-08 11:45:44,488 WARN L188 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2019-09-08 11:45:44,819 WARN L188 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:45:46,251 WARN L188 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2019-09-08 11:45:46,637 WARN L188 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 11:45:46,940 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:47,183 WARN L188 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:45:48,778 WARN L188 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:45:49,072 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:45:50,110 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 11:45:51,681 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2019-09-08 11:45:51,919 WARN L188 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2019-09-08 11:45:52,289 WARN L188 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2019-09-08 11:45:52,677 WARN L188 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2019-09-08 11:45:53,147 WARN L188 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:45:53,901 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2019-09-08 11:45:54,296 WARN L188 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2019-09-08 11:45:54,960 WARN L188 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2019-09-08 11:45:55,272 WARN L188 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2019-09-08 11:45:55,653 WARN L188 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2019-09-08 11:45:56,063 WARN L188 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2019-09-08 11:45:56,320 WARN L188 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2019-09-08 11:45:56,528 WARN L188 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:45:57,456 WARN L188 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 72 [2019-09-08 11:45:57,906 WARN L188 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2019-09-08 11:45:58,184 WARN L188 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 11:45:59,067 WARN L188 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2019-09-08 11:45:59,508 WARN L188 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2019-09-08 11:46:00,096 WARN L188 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2019-09-08 11:46:00,319 WARN L188 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:46:01,017 WARN L188 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 76 [2019-09-08 11:46:01,369 WARN L188 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:46:01,941 WARN L188 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2019-09-08 11:46:02,427 WARN L188 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 73 [2019-09-08 11:46:02,817 WARN L188 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 61 [2019-09-08 11:46:03,756 WARN L188 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 79 [2019-09-08 11:46:04,062 WARN L188 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2019-09-08 11:46:04,755 WARN L188 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 64 [2019-09-08 11:46:05,462 WARN L188 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2019-09-08 11:46:27,535 WARN L188 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 63 [2019-09-08 11:46:28,825 WARN L188 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 66 [2019-09-08 11:46:29,010 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:46:29,629 WARN L188 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2019-09-08 11:46:30,428 WARN L188 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 46 [2019-09-08 11:46:30,652 WARN L188 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:46:31,424 WARN L188 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 43 [2019-09-08 11:46:32,259 WARN L188 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 49 [2019-09-08 11:46:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:46:45,719 INFO L93 Difference]: Finished difference Result 583059 states and 821753 transitions. [2019-09-08 11:46:45,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 431 states. [2019-09-08 11:46:45,719 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 82 [2019-09-08 11:46:45,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:46:46,752 INFO L225 Difference]: With dead ends: 583059 [2019-09-08 11:46:46,752 INFO L226 Difference]: Without dead ends: 544865 [2019-09-08 11:46:46,920 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 521 GetRequests, 60 SyntacticMatches, 15 SemanticMatches, 446 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103270 ImplicationChecksByTransitivity, 112.2s TimeCoverageRelationStatistics Valid=26147, Invalid=174109, Unknown=0, NotChecked=0, Total=200256 [2019-09-08 11:46:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 544865 states. [2019-09-08 11:47:20,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 544865 to 154590. [2019-09-08 11:47:20,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 154590 states. [2019-09-08 11:47:21,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154590 states to 154590 states and 220685 transitions. [2019-09-08 11:47:21,093 INFO L78 Accepts]: Start accepts. Automaton has 154590 states and 220685 transitions. Word has length 82 [2019-09-08 11:47:21,093 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:47:21,093 INFO L475 AbstractCegarLoop]: Abstraction has 154590 states and 220685 transitions. [2019-09-08 11:47:21,093 INFO L476 AbstractCegarLoop]: Interpolant automaton has 19 states. [2019-09-08 11:47:21,093 INFO L276 IsEmpty]: Start isEmpty. Operand 154590 states and 220685 transitions. [2019-09-08 11:47:21,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 11:47:21,097 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:47:21,098 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:47:21,098 INFO L418 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:47:21,098 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:47:21,098 INFO L82 PathProgramCache]: Analyzing trace with hash -678407881, now seen corresponding path program 1 times [2019-09-08 11:47:21,098 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:47:21,098 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:47:21,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:21,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:47:21,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:47:21,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:47:21,140 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 11:47:21,140 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-08 11:47:21,140 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-08 11:47:21,141 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-08 11:47:21,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-08 11:47:21,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-08 11:47:21,141 INFO L87 Difference]: Start difference. First operand 154590 states and 220685 transitions. Second operand 3 states. [2019-09-08 11:47:42,886 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:47:42,886 INFO L93 Difference]: Finished difference Result 268154 states and 383936 transitions. [2019-09-08 11:47:42,886 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-08 11:47:42,886 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 83 [2019-09-08 11:47:42,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:47:43,044 INFO L225 Difference]: With dead ends: 268154 [2019-09-08 11:47:43,045 INFO L226 Difference]: Without dead ends: 113596 [2019-09-08 11:47:43,167 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 11:47:43,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113596 states. [2019-09-08 11:48:04,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113596 to 113368. [2019-09-08 11:48:04,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 113368 states. [2019-09-08 11:48:04,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113368 states to 113368 states and 160683 transitions. [2019-09-08 11:48:04,890 INFO L78 Accepts]: Start accepts. Automaton has 113368 states and 160683 transitions. Word has length 83 [2019-09-08 11:48:04,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:48:04,891 INFO L475 AbstractCegarLoop]: Abstraction has 113368 states and 160683 transitions. [2019-09-08 11:48:04,891 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-08 11:48:04,891 INFO L276 IsEmpty]: Start isEmpty. Operand 113368 states and 160683 transitions. [2019-09-08 11:48:04,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 11:48:04,894 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:48:04,894 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:48:04,895 INFO L418 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:48:04,895 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:48:04,895 INFO L82 PathProgramCache]: Analyzing trace with hash 2096755563, now seen corresponding path program 1 times [2019-09-08 11:48:04,895 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:48:04,895 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:48:04,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:48:04,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:48:04,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:48:04,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:48:05,087 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:48:05,088 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:48:05,088 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 11:48:05,112 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 11:48:05,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:48:05,205 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 16 conjunts are in the unsatisfiable core [2019-09-08 11:48:05,211 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:48:05,541 WARN L188 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2019-09-08 11:48:05,542 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:48:05,738 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 4 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-08 11:48:05,742 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:48:05,742 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:48:05,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:48:05,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:48:05,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:48:05,746 INFO L87 Difference]: Start difference. First operand 113368 states and 160683 transitions. Second operand 17 states. [2019-09-08 11:50:11,141 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-08 11:50:11,141 INFO L93 Difference]: Finished difference Result 738443 states and 1031340 transitions. [2019-09-08 11:50:11,142 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2019-09-08 11:50:11,142 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 83 [2019-09-08 11:50:11,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-08 11:50:12,028 INFO L225 Difference]: With dead ends: 738443 [2019-09-08 11:50:12,028 INFO L226 Difference]: Without dead ends: 625107 [2019-09-08 11:50:12,170 INFO L628 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 76 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 620 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=665, Invalid=1987, Unknown=0, NotChecked=0, Total=2652 [2019-09-08 11:50:12,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 625107 states. [2019-09-08 11:51:13,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 625107 to 275062. [2019-09-08 11:51:13,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 275062 states. [2019-09-08 11:51:13,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 275062 states to 275062 states and 387871 transitions. [2019-09-08 11:51:13,658 INFO L78 Accepts]: Start accepts. Automaton has 275062 states and 387871 transitions. Word has length 83 [2019-09-08 11:51:13,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-08 11:51:13,659 INFO L475 AbstractCegarLoop]: Abstraction has 275062 states and 387871 transitions. [2019-09-08 11:51:13,659 INFO L476 AbstractCegarLoop]: Interpolant automaton has 17 states. [2019-09-08 11:51:13,659 INFO L276 IsEmpty]: Start isEmpty. Operand 275062 states and 387871 transitions. [2019-09-08 11:51:13,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-09-08 11:51:13,663 INFO L391 BasicCegarLoop]: Found error trace [2019-09-08 11:51:13,663 INFO L399 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-08 11:51:13,663 INFO L418 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-08 11:51:13,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-08 11:51:13,663 INFO L82 PathProgramCache]: Analyzing trace with hash -100457125, now seen corresponding path program 1 times [2019-09-08 11:51:13,663 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-09-08 11:51:13,663 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-09-08 11:51:13,664 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:51:13,664 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:51:13,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-08 11:51:13,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:51:13,882 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 11:51:13,883 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-08 11:51:13,883 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 11:51:13,906 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-08 11:51:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-08 11:51:13,997 INFO L256 TraceCheckSpWp]: Trace formula consists of 627 conjuncts, 17 conjunts are in the unsatisfiable core [2019-09-08 11:51:14,000 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-09-08 11:51:14,090 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-09-08 11:51:14,234 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 11:51:14,238 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-09-08 11:51:14,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2019-09-08 11:51:14,239 INFO L454 AbstractCegarLoop]: Interpolant automaton has 17 states [2019-09-08 11:51:14,239 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2019-09-08 11:51:14,239 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=223, Unknown=0, NotChecked=0, Total=272 [2019-09-08 11:51:14,239 INFO L87 Difference]: Start difference. First operand 275062 states and 387871 transitions. Second operand 17 states.