/usr/bin/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:52:11,504 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:52:11,507 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:52:11,531 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 22:52:11,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:52:11,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:52:11,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:52:11,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:52:11,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:52:11,544 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:52:11,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:52:11,548 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:52:11,549 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:52:11,550 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:52:11,551 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:52:11,552 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:52:11,554 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:52:11,562 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:52:11,562 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:52:11,563 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:52:11,564 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 22:52:11,573 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:52:11,573 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:52:11,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:52:11,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:52:11,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:52:11,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:52:11,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:52:11,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:52:11,575 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:52:11,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:52:11,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:52:11,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:52:11,576 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:52:11,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:52:11,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:52:11,577 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:52:11,577 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:52:11,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:52:11,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:52:11,577 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:52:11,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:52:11,578 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:52:11,578 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 22:52:11,867 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:52:11,879 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:52:11,882 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:52:11,884 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:52:11,884 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:52:11,885 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-08-22 22:52:11,942 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e73aac5/65abbe0b3a15408497aabd2d2f5ad4bb/FLAGe77f748bc [2020-08-22 22:52:12,486 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:52:12,488 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label38.c [2020-08-22 22:52:12,501 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e73aac5/65abbe0b3a15408497aabd2d2f5ad4bb/FLAGe77f748bc [2020-08-22 22:52:12,712 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9e73aac5/65abbe0b3a15408497aabd2d2f5ad4bb [2020-08-22 22:52:12,722 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:52:12,724 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:52:12,725 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:52:12,725 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:52:12,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:52:12,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:52:12" (1/1) ... [2020-08-22 22:52:12,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f06d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:12, skipping insertion in model container [2020-08-22 22:52:12,733 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:52:12" (1/1) ... [2020-08-22 22:52:12,740 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:52:12,801 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:52:13,352 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:52:13,356 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:52:13,525 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:52:13,555 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:52:13,556 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13 WrapperNode [2020-08-22 22:52:13,556 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:52:13,557 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:52:13,557 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:52:13,557 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:52:13,571 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,571 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,610 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,700 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (1/1) ... [2020-08-22 22:52:13,717 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:52:13,718 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:52:13,718 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:52:13,718 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:52:13,720 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (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 [2020-08-22 22:52:13,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:52:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:52:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 22:52:13,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:52:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 22:52:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:52:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:52:13,826 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:52:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:52:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:52:13,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:52:15,506 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:52:15,506 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 22:52:15,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:52:15 BoogieIcfgContainer [2020-08-22 22:52:15,515 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:52:15,516 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:52:15,516 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:52:15,519 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:52:15,520 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:52:12" (1/3) ... [2020-08-22 22:52:15,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36144c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:52:15, skipping insertion in model container [2020-08-22 22:52:15,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:52:13" (2/3) ... [2020-08-22 22:52:15,521 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36144c13 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:52:15, skipping insertion in model container [2020-08-22 22:52:15,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:52:15" (3/3) ... [2020-08-22 22:52:15,523 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label38.c [2020-08-22 22:52:15,533 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:52:15,541 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:52:15,555 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:52:15,576 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:52:15,577 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:52:15,577 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:52:15,577 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:52:15,577 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:52:15,578 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:52:15,578 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:52:15,578 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:52:15,609 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-08-22 22:52:15,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-08-22 22:52:15,622 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:15,623 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:15,624 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:15,630 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:15,630 INFO L82 PathProgramCache]: Analyzing trace with hash -496136462, now seen corresponding path program 1 times [2020-08-22 22:52:15,638 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:15,639 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [312201648] [2020-08-22 22:52:15,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:15,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:15,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:15,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:52:15,994 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [312201648] [2020-08-22 22:52:15,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:52:15,997 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:52:15,998 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067047093] [2020-08-22 22:52:16,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:52:16,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:16,018 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:52:16,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:52:16,021 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-08-22 22:52:19,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:19,595 INFO L93 Difference]: Finished difference Result 1766 states and 2493 transitions. [2020-08-22 22:52:19,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:52:19,598 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 69 [2020-08-22 22:52:19,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:19,622 INFO L225 Difference]: With dead ends: 1766 [2020-08-22 22:52:19,623 INFO L226 Difference]: Without dead ends: 1025 [2020-08-22 22:52:19,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:52:19,658 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1025 states. [2020-08-22 22:52:19,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1025 to 995. [2020-08-22 22:52:19,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 995 states. [2020-08-22 22:52:19,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 995 states to 995 states and 1343 transitions. [2020-08-22 22:52:19,816 INFO L78 Accepts]: Start accepts. Automaton has 995 states and 1343 transitions. Word has length 69 [2020-08-22 22:52:19,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:19,817 INFO L479 AbstractCegarLoop]: Abstraction has 995 states and 1343 transitions. [2020-08-22 22:52:19,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:52:19,817 INFO L276 IsEmpty]: Start isEmpty. Operand 995 states and 1343 transitions. [2020-08-22 22:52:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 22:52:19,827 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:19,828 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:19,828 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:52:19,828 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:19,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:19,829 INFO L82 PathProgramCache]: Analyzing trace with hash -1110466945, now seen corresponding path program 1 times [2020-08-22 22:52:19,829 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:19,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1815250925] [2020-08-22 22:52:19,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:20,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:20,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:20,058 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:20,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:20,202 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:52:20,203 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1815250925] [2020-08-22 22:52:20,203 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:52:20,203 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 22:52:20,203 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074121443] [2020-08-22 22:52:20,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:52:20,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:20,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:52:20,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:52:20,207 INFO L87 Difference]: Start difference. First operand 995 states and 1343 transitions. Second operand 8 states. [2020-08-22 22:52:23,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:23,155 INFO L93 Difference]: Finished difference Result 2228 states and 3074 transitions. [2020-08-22 22:52:23,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:52:23,155 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-08-22 22:52:23,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:23,167 INFO L225 Difference]: With dead ends: 2228 [2020-08-22 22:52:23,168 INFO L226 Difference]: Without dead ends: 1248 [2020-08-22 22:52:23,174 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:23,176 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1248 states. [2020-08-22 22:52:23,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1248 to 1001. [2020-08-22 22:52:23,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1001 states. [2020-08-22 22:52:23,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1001 states to 1001 states and 1253 transitions. [2020-08-22 22:52:23,269 INFO L78 Accepts]: Start accepts. Automaton has 1001 states and 1253 transitions. Word has length 153 [2020-08-22 22:52:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:23,270 INFO L479 AbstractCegarLoop]: Abstraction has 1001 states and 1253 transitions. [2020-08-22 22:52:23,270 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:52:23,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1001 states and 1253 transitions. [2020-08-22 22:52:23,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 22:52:23,273 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:23,274 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:23,274 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:52:23,274 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:23,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:23,275 INFO L82 PathProgramCache]: Analyzing trace with hash -2042415941, now seen corresponding path program 1 times [2020-08-22 22:52:23,275 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:23,275 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [925315384] [2020-08-22 22:52:23,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:23,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:23,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,486 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:23,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,678 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:52:23,678 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [925315384] [2020-08-22 22:52:23,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:52:23,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 22:52:23,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608952510] [2020-08-22 22:52:23,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:52:23,682 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:23,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:52:23,683 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:52:23,683 INFO L87 Difference]: Start difference. First operand 1001 states and 1253 transitions. Second operand 9 states. [2020-08-22 22:52:27,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:27,606 INFO L93 Difference]: Finished difference Result 2437 states and 3097 transitions. [2020-08-22 22:52:27,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:52:27,611 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 22:52:27,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:27,628 INFO L225 Difference]: With dead ends: 2437 [2020-08-22 22:52:27,629 INFO L226 Difference]: Without dead ends: 1451 [2020-08-22 22:52:27,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:52:27,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1451 states. [2020-08-22 22:52:27,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1451 to 1194. [2020-08-22 22:52:27,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1194 states. [2020-08-22 22:52:27,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1194 states to 1194 states and 1467 transitions. [2020-08-22 22:52:27,796 INFO L78 Accepts]: Start accepts. Automaton has 1194 states and 1467 transitions. Word has length 163 [2020-08-22 22:52:27,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:27,796 INFO L479 AbstractCegarLoop]: Abstraction has 1194 states and 1467 transitions. [2020-08-22 22:52:27,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:52:27,797 INFO L276 IsEmpty]: Start isEmpty. Operand 1194 states and 1467 transitions. [2020-08-22 22:52:27,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-22 22:52:27,801 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:27,801 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 22:52:27,802 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:52:27,802 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:27,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:27,802 INFO L82 PathProgramCache]: Analyzing trace with hash 452640985, now seen corresponding path program 1 times [2020-08-22 22:52:27,803 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:27,803 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [131788732] [2020-08-22 22:52:27,803 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:27,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:27,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:27,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:28,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 22:52:28,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:28,238 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 106 proven. 68 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 22:52:28,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [131788732] [2020-08-22 22:52:28,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:28,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:52:28,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745953893] [2020-08-22 22:52:28,240 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:52:28,241 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:28,241 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:52:28,241 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:52:28,242 INFO L87 Difference]: Start difference. First operand 1194 states and 1467 transitions. Second operand 9 states. [2020-08-22 22:52:32,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:32,207 INFO L93 Difference]: Finished difference Result 2478 states and 3100 transitions. [2020-08-22 22:52:32,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:52:32,208 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-22 22:52:32,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:32,218 INFO L225 Difference]: With dead ends: 2478 [2020-08-22 22:52:32,219 INFO L226 Difference]: Without dead ends: 1490 [2020-08-22 22:52:32,222 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:52:32,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2020-08-22 22:52:32,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1435. [2020-08-22 22:52:32,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1435 states. [2020-08-22 22:52:32,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1435 states to 1435 states and 1736 transitions. [2020-08-22 22:52:32,358 INFO L78 Accepts]: Start accepts. Automaton has 1435 states and 1736 transitions. Word has length 246 [2020-08-22 22:52:32,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:32,359 INFO L479 AbstractCegarLoop]: Abstraction has 1435 states and 1736 transitions. [2020-08-22 22:52:32,359 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:52:32,359 INFO L276 IsEmpty]: Start isEmpty. Operand 1435 states and 1736 transitions. [2020-08-22 22:52:32,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 257 [2020-08-22 22:52:32,363 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:32,364 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:32,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:52:32,364 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:32,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:32,365 INFO L82 PathProgramCache]: Analyzing trace with hash -144439824, now seen corresponding path program 1 times [2020-08-22 22:52:32,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:32,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1654364476] [2020-08-22 22:52:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:32,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:32,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:32,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:32,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:32,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:32,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 22:52:32,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:33,017 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 142 proven. 52 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:52:33,017 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1654364476] [2020-08-22 22:52:33,018 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:33,018 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:52:33,018 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359779091] [2020-08-22 22:52:33,019 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:52:33,020 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:33,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:52:33,020 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:52:33,021 INFO L87 Difference]: Start difference. First operand 1435 states and 1736 transitions. Second operand 11 states. [2020-08-22 22:52:38,014 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:38,015 INFO L93 Difference]: Finished difference Result 3479 states and 4213 transitions. [2020-08-22 22:52:38,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 22:52:38,023 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 256 [2020-08-22 22:52:38,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:38,040 INFO L225 Difference]: With dead ends: 3479 [2020-08-22 22:52:38,040 INFO L226 Difference]: Without dead ends: 2102 [2020-08-22 22:52:38,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2020-08-22 22:52:38,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2102 states. [2020-08-22 22:52:38,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2102 to 1841. [2020-08-22 22:52:38,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1841 states. [2020-08-22 22:52:38,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1841 states to 1841 states and 2165 transitions. [2020-08-22 22:52:38,281 INFO L78 Accepts]: Start accepts. Automaton has 1841 states and 2165 transitions. Word has length 256 [2020-08-22 22:52:38,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:38,282 INFO L479 AbstractCegarLoop]: Abstraction has 1841 states and 2165 transitions. [2020-08-22 22:52:38,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:52:38,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1841 states and 2165 transitions. [2020-08-22 22:52:38,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 282 [2020-08-22 22:52:38,287 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:38,288 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:38,288 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:52:38,288 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:38,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:38,288 INFO L82 PathProgramCache]: Analyzing trace with hash -413630622, now seen corresponding path program 1 times [2020-08-22 22:52:38,289 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:38,289 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441599413] [2020-08-22 22:52:38,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:38,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:38,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,534 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:38,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 135 proven. 59 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:52:38,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441599413] [2020-08-22 22:52:38,858 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:38,858 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-08-22 22:52:38,859 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092949038] [2020-08-22 22:52:38,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 22:52:38,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:38,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 22:52:38,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2020-08-22 22:52:38,870 INFO L87 Difference]: Start difference. First operand 1841 states and 2165 transitions. Second operand 10 states. [2020-08-22 22:52:45,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:45,691 INFO L93 Difference]: Finished difference Result 5966 states and 7467 transitions. [2020-08-22 22:52:45,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-08-22 22:52:45,693 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 281 [2020-08-22 22:52:45,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:45,724 INFO L225 Difference]: With dead ends: 5966 [2020-08-22 22:52:45,725 INFO L226 Difference]: Without dead ends: 4331 [2020-08-22 22:52:45,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 212 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=210, Invalid=782, Unknown=0, NotChecked=0, Total=992 [2020-08-22 22:52:45,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4331 states. [2020-08-22 22:52:46,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4331 to 3828. [2020-08-22 22:52:46,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3828 states. [2020-08-22 22:52:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3828 states to 3828 states and 4542 transitions. [2020-08-22 22:52:46,160 INFO L78 Accepts]: Start accepts. Automaton has 3828 states and 4542 transitions. Word has length 281 [2020-08-22 22:52:46,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:46,160 INFO L479 AbstractCegarLoop]: Abstraction has 3828 states and 4542 transitions. [2020-08-22 22:52:46,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 22:52:46,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3828 states and 4542 transitions. [2020-08-22 22:52:46,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 678 [2020-08-22 22:52:46,183 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:46,184 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:46,184 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:52:46,184 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:46,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:46,185 INFO L82 PathProgramCache]: Analyzing trace with hash 1701663168, now seen corresponding path program 1 times [2020-08-22 22:52:46,185 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:46,185 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [483052812] [2020-08-22 22:52:46,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:46,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:46,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:46,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:46,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:46,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,748 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-08-22 22:52:46,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2020-08-22 22:52:46,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:47,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 785 proven. 275 refuted. 0 times theorem prover too weak. 292 trivial. 0 not checked. [2020-08-22 22:52:47,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [483052812] [2020-08-22 22:52:47,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:47,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 22:52:47,624 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399577216] [2020-08-22 22:52:47,625 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:52:47,625 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:47,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:52:47,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:47,626 INFO L87 Difference]: Start difference. First operand 3828 states and 4542 transitions. Second operand 13 states. [2020-08-22 22:52:53,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:53,403 INFO L93 Difference]: Finished difference Result 9191 states and 11371 transitions. [2020-08-22 22:52:53,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 22:52:53,404 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 677 [2020-08-22 22:52:53,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:53,447 INFO L225 Difference]: With dead ends: 9191 [2020-08-22 22:52:53,447 INFO L226 Difference]: Without dead ends: 5684 [2020-08-22 22:52:53,460 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2020-08-22 22:52:53,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5684 states. [2020-08-22 22:52:54,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5684 to 5602. [2020-08-22 22:52:54,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5602 states. [2020-08-22 22:52:54,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5602 states to 5602 states and 6893 transitions. [2020-08-22 22:52:54,454 INFO L78 Accepts]: Start accepts. Automaton has 5602 states and 6893 transitions. Word has length 677 [2020-08-22 22:52:54,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:54,455 INFO L479 AbstractCegarLoop]: Abstraction has 5602 states and 6893 transitions. [2020-08-22 22:52:54,455 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:52:54,455 INFO L276 IsEmpty]: Start isEmpty. Operand 5602 states and 6893 transitions. [2020-08-22 22:52:54,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 692 [2020-08-22 22:52:54,471 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:54,471 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-08-22 22:52:54,471 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 22:52:54,472 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:54,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:54,472 INFO L82 PathProgramCache]: Analyzing trace with hash 912169590, now seen corresponding path program 1 times [2020-08-22 22:52:54,472 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:54,473 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880310575] [2020-08-22 22:52:54,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:54,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:54,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:54,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:54,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-08-22 22:52:54,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 418 [2020-08-22 22:52:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2020-08-22 22:52:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:55,080 INFO L134 CoverageAnalysis]: Checked inductivity of 1645 backedges. 535 proven. 206 refuted. 0 times theorem prover too weak. 904 trivial. 0 not checked. [2020-08-22 22:52:55,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880310575] [2020-08-22 22:52:55,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:55,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:52:55,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521901280] [2020-08-22 22:52:55,082 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:52:55,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:55,083 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:52:55,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:52:55,083 INFO L87 Difference]: Start difference. First operand 5602 states and 6893 transitions. Second operand 7 states. [2020-08-22 22:52:58,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:58,642 INFO L93 Difference]: Finished difference Result 12136 states and 15208 transitions. [2020-08-22 22:52:58,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:52:58,642 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 691 [2020-08-22 22:52:58,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:58,692 INFO L225 Difference]: With dead ends: 12136 [2020-08-22 22:52:58,693 INFO L226 Difference]: Without dead ends: 6931 [2020-08-22 22:52:58,714 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:52:58,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6931 states. [2020-08-22 22:52:59,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6931 to 6707. [2020-08-22 22:52:59,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6707 states. [2020-08-22 22:52:59,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6707 states to 6707 states and 8222 transitions. [2020-08-22 22:52:59,549 INFO L78 Accepts]: Start accepts. Automaton has 6707 states and 8222 transitions. Word has length 691 [2020-08-22 22:52:59,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:59,550 INFO L479 AbstractCegarLoop]: Abstraction has 6707 states and 8222 transitions. [2020-08-22 22:52:59,550 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:52:59,550 INFO L276 IsEmpty]: Start isEmpty. Operand 6707 states and 8222 transitions. [2020-08-22 22:52:59,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 834 [2020-08-22 22:52:59,568 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:59,569 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:52:59,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 22:52:59,569 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:59,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:59,570 INFO L82 PathProgramCache]: Analyzing trace with hash 792464542, now seen corresponding path program 1 times [2020-08-22 22:52:59,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:59,570 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [772511536] [2020-08-22 22:52:59,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:59,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:59,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:59,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:59,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:59,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:59,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:59,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:59,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:59,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:59,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2020-08-22 22:52:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:00,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 510 [2020-08-22 22:53:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:00,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-08-22 22:53:00,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:01,196 INFO L134 CoverageAnalysis]: Checked inductivity of 2031 backedges. 859 proven. 508 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2020-08-22 22:53:01,197 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [772511536] [2020-08-22 22:53:01,197 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:01,197 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 22:53:01,197 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1678443860] [2020-08-22 22:53:01,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 22:53:01,199 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:01,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 22:53:01,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-08-22 22:53:01,199 INFO L87 Difference]: Start difference. First operand 6707 states and 8222 transitions. Second operand 15 states. [2020-08-22 22:53:07,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:07,736 INFO L93 Difference]: Finished difference Result 13806 states and 16936 transitions. [2020-08-22 22:53:07,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 22:53:07,737 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 833 [2020-08-22 22:53:07,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:07,770 INFO L225 Difference]: With dead ends: 13806 [2020-08-22 22:53:07,770 INFO L226 Difference]: Without dead ends: 7425 [2020-08-22 22:53:07,790 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2020-08-22 22:53:07,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7425 states. [2020-08-22 22:53:08,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7425 to 6582. [2020-08-22 22:53:08,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6582 states. [2020-08-22 22:53:08,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6582 states to 6582 states and 8044 transitions. [2020-08-22 22:53:08,467 INFO L78 Accepts]: Start accepts. Automaton has 6582 states and 8044 transitions. Word has length 833 [2020-08-22 22:53:08,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:08,468 INFO L479 AbstractCegarLoop]: Abstraction has 6582 states and 8044 transitions. [2020-08-22 22:53:08,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 22:53:08,468 INFO L276 IsEmpty]: Start isEmpty. Operand 6582 states and 8044 transitions. [2020-08-22 22:53:08,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 849 [2020-08-22 22:53:08,482 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:08,482 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:53:08,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 22:53:08,483 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:08,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:08,483 INFO L82 PathProgramCache]: Analyzing trace with hash -434183850, now seen corresponding path program 1 times [2020-08-22 22:53:08,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:08,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681028504] [2020-08-22 22:53:08,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:08,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:08,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,706 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:08,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:08,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:53:08,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,813 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 525 [2020-08-22 22:53:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:08,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 648 [2020-08-22 22:53:08,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:09,483 INFO L134 CoverageAnalysis]: Checked inductivity of 2096 backedges. 337 proven. 6 refuted. 0 times theorem prover too weak. 1753 trivial. 0 not checked. [2020-08-22 22:53:09,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681028504] [2020-08-22 22:53:09,484 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:09,484 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 22:53:09,484 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256794453] [2020-08-22 22:53:09,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:53:09,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:09,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:53:09,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:53:09,486 INFO L87 Difference]: Start difference. First operand 6582 states and 8044 transitions. Second operand 5 states. [2020-08-22 22:53:13,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:13,490 INFO L93 Difference]: Finished difference Result 15339 states and 19151 transitions. [2020-08-22 22:53:13,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:53:13,491 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 848 [2020-08-22 22:53:13,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:13,531 INFO L225 Difference]: With dead ends: 15339 [2020-08-22 22:53:13,531 INFO L226 Difference]: Without dead ends: 9154 [2020-08-22 22:53:13,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:53:13,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9154 states. [2020-08-22 22:53:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9154 to 8305. [2020-08-22 22:53:14,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8305 states. [2020-08-22 22:53:14,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8305 states to 8305 states and 9992 transitions. [2020-08-22 22:53:14,781 INFO L78 Accepts]: Start accepts. Automaton has 8305 states and 9992 transitions. Word has length 848 [2020-08-22 22:53:14,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:14,782 INFO L479 AbstractCegarLoop]: Abstraction has 8305 states and 9992 transitions. [2020-08-22 22:53:14,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:53:14,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8305 states and 9992 transitions. [2020-08-22 22:53:14,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 908 [2020-08-22 22:53:14,802 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:14,802 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:53:14,803 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 22:53:14,803 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:14,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:14,803 INFO L82 PathProgramCache]: Analyzing trace with hash -184702077, now seen corresponding path program 1 times [2020-08-22 22:53:14,804 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:14,804 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [787920814] [2020-08-22 22:53:14,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:14,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:15,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:15,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:15,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:15,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 405 [2020-08-22 22:53:15,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 548 [2020-08-22 22:53:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:15,440 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 671 [2020-08-22 22:53:15,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:16,278 INFO L134 CoverageAnalysis]: Checked inductivity of 2133 backedges. 878 proven. 591 refuted. 0 times theorem prover too weak. 664 trivial. 0 not checked. [2020-08-22 22:53:16,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [787920814] [2020-08-22 22:53:16,279 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:16,279 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-08-22 22:53:16,279 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [72968584] [2020-08-22 22:53:16,280 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-08-22 22:53:16,281 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:16,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-08-22 22:53:16,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-08-22 22:53:16,281 INFO L87 Difference]: Start difference. First operand 8305 states and 9992 transitions. Second operand 15 states. [2020-08-22 22:53:22,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:22,803 INFO L93 Difference]: Finished difference Result 16719 states and 20157 transitions. [2020-08-22 22:53:22,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 22:53:22,803 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 907 [2020-08-22 22:53:22,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:22,843 INFO L225 Difference]: With dead ends: 16719 [2020-08-22 22:53:22,844 INFO L226 Difference]: Without dead ends: 8744 [2020-08-22 22:53:22,861 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=221, Invalid=771, Unknown=0, NotChecked=0, Total=992 [2020-08-22 22:53:22,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8744 states. [2020-08-22 22:53:24,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8744 to 8283. [2020-08-22 22:53:24,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8283 states. [2020-08-22 22:53:24,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8283 states to 8283 states and 9956 transitions. [2020-08-22 22:53:24,232 INFO L78 Accepts]: Start accepts. Automaton has 8283 states and 9956 transitions. Word has length 907 [2020-08-22 22:53:24,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:24,233 INFO L479 AbstractCegarLoop]: Abstraction has 8283 states and 9956 transitions. [2020-08-22 22:53:24,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-08-22 22:53:24,233 INFO L276 IsEmpty]: Start isEmpty. Operand 8283 states and 9956 transitions. [2020-08-22 22:53:24,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 910 [2020-08-22 22:53:24,254 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:24,255 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:53:24,255 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 22:53:24,256 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:24,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:24,256 INFO L82 PathProgramCache]: Analyzing trace with hash 970560772, now seen corresponding path program 1 times [2020-08-22 22:53:24,256 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:24,257 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [751860204] [2020-08-22 22:53:24,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:24,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:24,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:24,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:24,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:53:24,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,623 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:53:24,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,647 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 673 [2020-08-22 22:53:24,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:25,144 INFO L134 CoverageAnalysis]: Checked inductivity of 2122 backedges. 332 proven. 66 refuted. 0 times theorem prover too weak. 1724 trivial. 0 not checked. [2020-08-22 22:53:25,144 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [751860204] [2020-08-22 22:53:25,144 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:25,144 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:53:25,145 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1271480256] [2020-08-22 22:53:25,145 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:53:25,145 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:25,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:53:25,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:53:25,146 INFO L87 Difference]: Start difference. First operand 8283 states and 9956 transitions. Second operand 8 states. [2020-08-22 22:53:32,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:32,982 INFO L93 Difference]: Finished difference Result 21331 states and 26408 transitions. [2020-08-22 22:53:32,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 22:53:32,983 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 909 [2020-08-22 22:53:32,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:32,992 INFO L225 Difference]: With dead ends: 21331 [2020-08-22 22:53:32,993 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:53:33,038 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=168, Unknown=0, NotChecked=0, Total=240 [2020-08-22 22:53:33,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:53:33,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:53:33,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:53:33,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:53:33,039 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 909 [2020-08-22 22:53:33,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:33,040 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:53:33,040 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:53:33,040 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:53:33,040 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:53:33,040 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 22:53:33,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:53:34,777 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:53:35,370 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:53:36,523 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:53:39,741 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2020-08-22 22:53:47,980 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:54:19,530 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:54:45,295 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:54:49,402 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 160 [2020-08-22 22:54:49,732 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 199 [2020-08-22 22:54:50,852 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 169 [2020-08-22 22:54:51,253 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 198 [2020-08-22 22:54:51,690 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 199 [2020-08-22 22:54:51,946 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 169 [2020-08-22 22:54:53,356 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 199 [2020-08-22 22:54:54,462 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 169 [2020-08-22 22:54:54,855 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 198 [2020-08-22 22:54:55,298 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 244 DAG size of output: 199 [2020-08-22 22:54:55,556 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 169 [2020-08-22 22:55:10,682 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 141 [2020-08-22 22:55:26,261 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 48 [2020-08-22 22:55:27,590 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:28,230 WARN L193 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-08-22 22:55:29,229 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 56 [2020-08-22 22:55:29,620 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 22:55:30,409 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 47 [2020-08-22 22:55:31,073 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 56 [2020-08-22 22:55:31,856 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 57 [2020-08-22 22:55:32,285 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 22:55:33,578 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:34,218 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:55:35,495 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:35,891 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 22:55:36,728 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 52 [2020-08-22 22:55:37,349 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 48 [2020-08-22 22:55:38,146 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2020-08-22 22:55:38,848 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2020-08-22 22:55:39,661 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-08-22 22:55:40,251 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 53 [2020-08-22 22:55:40,978 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 22:55:41,789 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 62 [2020-08-22 22:55:42,562 WARN L193 SmtUtils]: Spent 764.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 57 [2020-08-22 22:55:43,866 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:44,815 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 58 [2020-08-22 22:55:45,632 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 53 [2020-08-22 22:55:46,238 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 59 [2020-08-22 22:55:47,165 WARN L193 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 55 [2020-08-22 22:55:47,721 WARN L193 SmtUtils]: Spent 545.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:55:48,333 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 48 [2020-08-22 22:55:49,620 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 240 DAG size of output: 67 [2020-08-22 22:55:50,280 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 54 [2020-08-22 22:55:51,052 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 54 [2020-08-22 22:55:52,197 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 207 DAG size of output: 65 [2020-08-22 22:55:52,898 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 22:55:54,205 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:55,181 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-08-22 22:55:55,904 WARN L193 SmtUtils]: Spent 714.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 61 [2020-08-22 22:55:57,207 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:55:57,916 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 59 [2020-08-22 22:55:58,555 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 48 [2020-08-22 22:55:59,505 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 57 [2020-08-22 22:56:00,168 WARN L193 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 54 [2020-08-22 22:56:01,475 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:02,221 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 57 [2020-08-22 22:56:03,007 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 47 [2020-08-22 22:56:03,740 WARN L193 SmtUtils]: Spent 724.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 52 [2020-08-22 22:56:05,047 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:05,743 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-08-22 22:56:07,056 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:07,885 WARN L193 SmtUtils]: Spent 819.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 58 [2020-08-22 22:56:08,681 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 53 [2020-08-22 22:56:09,644 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 74 [2020-08-22 22:56:10,626 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 58 [2020-08-22 22:56:11,293 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 54 [2020-08-22 22:56:12,605 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:13,791 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 207 DAG size of output: 65 [2020-08-22 22:56:14,603 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 75 [2020-08-22 22:56:15,555 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 55 [2020-08-22 22:56:16,670 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 202 DAG size of output: 64 [2020-08-22 22:56:17,546 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 55 [2020-08-22 22:56:18,672 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:56:20,093 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:21,406 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:22,748 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:24,069 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:24,942 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 66 [2020-08-22 22:56:25,597 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 50 [2020-08-22 22:56:26,541 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 65 [2020-08-22 22:56:27,164 WARN L193 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 50 [2020-08-22 22:56:27,852 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 57 [2020-08-22 22:56:29,173 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:29,924 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-08-22 22:56:30,577 WARN L193 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 53 [2020-08-22 22:56:31,901 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:32,625 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-08-22 22:56:33,742 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:56:34,868 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:56:36,211 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:36,621 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 22:56:37,193 WARN L193 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:37,801 WARN L193 SmtUtils]: Spent 597.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:56:38,384 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:39,727 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:40,303 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:41,671 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:42,258 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:42,839 WARN L193 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:43,947 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:56:45,059 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:56:45,645 WARN L193 SmtUtils]: Spent 576.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:46,766 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:56:47,850 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:56:49,174 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:49,819 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:56:50,404 WARN L193 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:51,034 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:56:52,362 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:52,949 WARN L193 SmtUtils]: Spent 579.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:56:54,289 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:55,210 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 56 [2020-08-22 22:56:56,212 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 55 [2020-08-22 22:56:56,887 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 60 [2020-08-22 22:56:58,230 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:56:58,887 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 51 [2020-08-22 22:56:59,511 WARN L193 SmtUtils]: Spent 616.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 50 [2020-08-22 22:57:00,297 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 55 [2020-08-22 22:57:01,639 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:02,416 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 62 [2020-08-22 22:57:03,186 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 52 [2020-08-22 22:57:04,182 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-08-22 22:57:04,826 WARN L193 SmtUtils]: Spent 636.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:57:05,515 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 46 [2020-08-22 22:57:06,489 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 55 [2020-08-22 22:57:07,240 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 54 [2020-08-22 22:57:07,951 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 52 [2020-08-22 22:57:08,855 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2020-08-22 22:57:09,986 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 211 DAG size of output: 60 [2020-08-22 22:57:11,351 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:12,071 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2020-08-22 22:57:13,622 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:14,613 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 58 [2020-08-22 22:57:15,262 WARN L193 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 48 [2020-08-22 22:57:16,323 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 229 DAG size of output: 69 [2020-08-22 22:57:16,888 WARN L193 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 48 [2020-08-22 22:57:17,562 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 50 [2020-08-22 22:57:18,265 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 53 [2020-08-22 22:57:19,190 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 60 [2020-08-22 22:57:20,178 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 66 [2020-08-22 22:57:20,868 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 56 [2020-08-22 22:57:21,569 WARN L193 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 60 [2020-08-22 22:57:22,919 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:23,490 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 48 [2020-08-22 22:57:24,665 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 209 DAG size of output: 56 [2020-08-22 22:57:25,469 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 22:57:26,267 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 52 [2020-08-22 22:57:26,896 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:57:28,270 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:28,973 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 57 [2020-08-22 22:57:29,900 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 53 [2020-08-22 22:57:31,252 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:31,999 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 54 [2020-08-22 22:57:33,030 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 211 DAG size of output: 61 [2020-08-22 22:57:33,670 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 48 [2020-08-22 22:57:34,484 WARN L193 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-22 22:57:35,863 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:37,244 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:38,183 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 77 [2020-08-22 22:57:39,161 WARN L193 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 55 [2020-08-22 22:57:40,254 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 236 DAG size of output: 56 [2020-08-22 22:57:41,144 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2020-08-22 22:57:42,315 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 200 DAG size of output: 62 [2020-08-22 22:57:43,718 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:44,875 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 207 DAG size of output: 58 [2020-08-22 22:57:45,984 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 194 DAG size of output: 67 [2020-08-22 22:57:46,780 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 57 [2020-08-22 22:57:47,737 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 55 [2020-08-22 22:57:48,730 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2020-08-22 22:57:49,357 WARN L193 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 51 [2020-08-22 22:57:50,751 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:52,120 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:53,148 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 196 DAG size of output: 55 [2020-08-22 22:57:54,176 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-08-22 22:57:55,239 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 232 DAG size of output: 56 [2020-08-22 22:57:56,642 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:57:57,295 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 51 [2020-08-22 22:57:58,062 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 53 [2020-08-22 22:57:58,637 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 48 [2020-08-22 22:58:00,029 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:01,016 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 55 [2020-08-22 22:58:01,742 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 22:58:02,502 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2020-08-22 22:58:03,887 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:04,484 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:58:05,890 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:06,538 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:58:07,478 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2020-08-22 22:58:08,567 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 230 DAG size of output: 56 [2020-08-22 22:58:09,971 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:11,082 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 199 DAG size of output: 67 [2020-08-22 22:58:12,243 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:58:13,423 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:58:14,030 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:58:14,679 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:58:15,319 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:58:16,713 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:17,351 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 46 [2020-08-22 22:58:18,755 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:20,154 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:20,950 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 56 [2020-08-22 22:58:21,716 WARN L193 SmtUtils]: Spent 758.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2020-08-22 22:58:22,506 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 22:58:23,451 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 62 [2020-08-22 22:58:24,127 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 51 [2020-08-22 22:58:25,191 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:58:26,253 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 190 DAG size of output: 74 [2020-08-22 22:58:27,051 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 52 [2020-08-22 22:58:28,469 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:29,237 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 51 [2020-08-22 22:58:29,990 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 56 [2020-08-22 22:58:30,712 WARN L193 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 51 [2020-08-22 22:58:31,373 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 49 [2020-08-22 22:58:32,169 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-08-22 22:58:32,831 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 57 [2020-08-22 22:58:33,559 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 52 [2020-08-22 22:58:35,024 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:35,700 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:58:37,118 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:37,806 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:58:38,650 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 55 [2020-08-22 22:58:39,422 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 22:58:40,353 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 59 [2020-08-22 22:58:41,785 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:42,463 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 50 [2020-08-22 22:58:43,331 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 64 [2020-08-22 22:58:44,112 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-08-22 22:58:44,851 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 53 [2020-08-22 22:58:45,890 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 192 DAG size of output: 57 [2020-08-22 22:58:46,629 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 22:58:47,345 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 51 [2020-08-22 22:58:48,018 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 53 [2020-08-22 22:58:48,768 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 22:58:49,826 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2020-08-22 22:58:50,543 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 54 [2020-08-22 22:58:51,520 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 78 [2020-08-22 22:58:52,416 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-08-22 22:58:53,847 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:55,274 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:58:56,258 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-08-22 22:58:57,350 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 204 DAG size of output: 61 [2020-08-22 22:58:58,087 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 51 [2020-08-22 22:58:58,978 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-08-22 22:58:59,771 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2020-08-22 22:59:00,624 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 57 [2020-08-22 22:59:02,067 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:02,679 WARN L193 SmtUtils]: Spent 603.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 51 [2020-08-22 22:59:04,110 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:05,207 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 209 DAG size of output: 56 [2020-08-22 22:59:05,870 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 44 [2020-08-22 22:59:06,761 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 48 [2020-08-22 22:59:07,488 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 54 [2020-08-22 22:59:08,317 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 58 [2020-08-22 22:59:09,040 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 62 [2020-08-22 22:59:09,842 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 55 [2020-08-22 22:59:10,616 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 22:59:11,450 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 55 [2020-08-22 22:59:12,478 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 205 DAG size of output: 55 [2020-08-22 22:59:13,253 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 62 [2020-08-22 22:59:14,692 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:15,635 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2020-08-22 22:59:17,069 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:18,505 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:19,397 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 52 [2020-08-22 22:59:20,241 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 54 [2020-08-22 22:59:21,684 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:22,475 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 51 [2020-08-22 22:59:23,371 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 51 [2020-08-22 22:59:24,836 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:26,267 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 240 DAG size of output: 67 [2020-08-22 22:59:27,090 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 54 [2020-08-22 22:59:27,800 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 50 [2020-08-22 22:59:29,265 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:29,991 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 54 [2020-08-22 22:59:30,579 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 35 [2020-08-22 22:59:31,613 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 205 DAG size of output: 55 [2020-08-22 22:59:33,081 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:33,843 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 22:59:34,559 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 51 [2020-08-22 22:59:35,376 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 22:59:36,362 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 61 [2020-08-22 22:59:37,524 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 213 DAG size of output: 64 [2020-08-22 22:59:38,343 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 22:59:39,083 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 52 [2020-08-22 22:59:40,536 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:41,200 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:59:42,664 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:44,133 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:44,814 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:59:45,261 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 22:59:45,997 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 52 [2020-08-22 22:59:47,467 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:48,137 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 22:59:48,968 WARN L193 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 56 [2020-08-22 22:59:49,653 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 45 [2020-08-22 22:59:50,714 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 190 DAG size of output: 68 [2020-08-22 22:59:51,415 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 50 [2020-08-22 22:59:52,371 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 62 [2020-08-22 22:59:53,583 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:59:54,795 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 22:59:55,416 WARN L193 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:59:56,048 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:59:56,677 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:59:58,155 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 22:59:58,785 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 22:59:59,416 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:00:00,906 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:01,581 WARN L193 SmtUtils]: Spent 667.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:00:03,119 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:04,607 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:05,262 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:00:06,221 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 52 [2020-08-22 23:00:07,702 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:08,473 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 23:00:09,197 WARN L193 SmtUtils]: Spent 717.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 54 [2020-08-22 23:00:10,440 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:00:11,662 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:00:12,887 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:00:13,526 WARN L193 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:00:14,391 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 55 [2020-08-22 23:00:15,873 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:16,630 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 46 [2020-08-22 23:00:17,748 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 210 DAG size of output: 56 [2020-08-22 23:00:19,224 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:20,060 WARN L193 SmtUtils]: Spent 827.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 57 [2020-08-22 23:00:21,540 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:22,310 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 58 [2020-08-22 23:00:23,613 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 188 DAG size of output: 67 [2020-08-22 23:00:25,097 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:25,854 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 53 [2020-08-22 23:00:26,661 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 55 [2020-08-22 23:00:27,331 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 46 [2020-08-22 23:00:28,798 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:30,265 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:31,773 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:33,243 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:34,490 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 200 DAG size of output: 60 [2020-08-22 23:00:35,391 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 53 [2020-08-22 23:00:36,164 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 46 [2020-08-22 23:00:37,007 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 57 [2020-08-22 23:00:37,689 WARN L193 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 46 [2020-08-22 23:00:38,392 WARN L193 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 46 [2020-08-22 23:00:39,904 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:40,600 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 49 [2020-08-22 23:00:41,871 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:00:42,509 WARN L193 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:00:43,150 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:00:44,383 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:00:45,361 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 51 [2020-08-22 23:00:46,874 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:47,900 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 196 DAG size of output: 56 [2020-08-22 23:00:49,078 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 204 DAG size of output: 61 [2020-08-22 23:00:50,158 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 190 DAG size of output: 72 [2020-08-22 23:00:50,912 WARN L193 SmtUtils]: Spent 746.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 52 [2020-08-22 23:00:51,672 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-08-22 23:00:53,187 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:54,709 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:56,238 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:57,797 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:00:59,314 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:00,456 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-08-22 23:01:01,163 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 48 [2020-08-22 23:01:01,903 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 59 [2020-08-22 23:01:03,441 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:04,292 WARN L193 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 63 [2020-08-22 23:01:05,538 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 191 DAG size of output: 67 [2020-08-22 23:01:06,358 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 52 [2020-08-22 23:01:07,881 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:09,397 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:10,454 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 190 DAG size of output: 77 [2020-08-22 23:01:11,321 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 56 [2020-08-22 23:01:11,985 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:13,521 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:15,053 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:16,596 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:17,255 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:17,920 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:18,556 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 35 [2020-08-22 23:01:20,106 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:20,869 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 62 [2020-08-22 23:01:22,059 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 204 DAG size of output: 61 [2020-08-22 23:01:23,367 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 200 DAG size of output: 60 [2020-08-22 23:01:24,227 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 56 [2020-08-22 23:01:25,421 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 193 DAG size of output: 64 [2020-08-22 23:01:26,641 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 229 DAG size of output: 69 [2020-08-22 23:01:27,755 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 199 DAG size of output: 55 [2020-08-22 23:01:28,513 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 60 [2020-08-22 23:01:29,200 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 49 [2020-08-22 23:01:30,079 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 57 [2020-08-22 23:01:30,884 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 23:01:31,626 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 48 [2020-08-22 23:01:33,188 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:33,932 WARN L193 SmtUtils]: Spent 655.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:34,637 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:01:35,940 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:01:36,645 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:01:38,217 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:39,860 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:41,448 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:42,172 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:01:42,855 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:43,552 WARN L193 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:01:44,519 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 59 [2020-08-22 23:01:46,473 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 225 DAG size of output: 67 [2020-08-22 23:01:48,045 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:48,985 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 54 [2020-08-22 23:01:49,766 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 52 [2020-08-22 23:01:50,976 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 192 DAG size of output: 71 [2020-08-22 23:01:51,746 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 51 [2020-08-22 23:01:53,292 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:54,861 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:55,734 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 60 [2020-08-22 23:01:56,593 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 23:01:58,149 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:01:58,970 WARN L193 SmtUtils]: Spent 814.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 58 [2020-08-22 23:02:00,548 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:01,219 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 47 [2020-08-22 23:02:02,090 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-08-22 23:02:02,949 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-08-22 23:02:04,027 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 198 DAG size of output: 62 [2020-08-22 23:02:04,836 WARN L193 SmtUtils]: Spent 801.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 23:02:05,732 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 55 [2020-08-22 23:02:06,971 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 236 DAG size of output: 56 [2020-08-22 23:02:07,643 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 53 [2020-08-22 23:02:08,373 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 49 [2020-08-22 23:02:09,949 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:11,050 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 191 DAG size of output: 62 [2020-08-22 23:02:12,634 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:13,681 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 200 DAG size of output: 63 [2020-08-22 23:02:15,269 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:16,864 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:17,797 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-22 23:02:18,588 WARN L193 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 52 [2020-08-22 23:02:20,186 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:20,943 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 51 [2020-08-22 23:02:21,744 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 51 [2020-08-22 23:02:22,700 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 55 [2020-08-22 23:02:23,546 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 23:02:24,797 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 209 DAG size of output: 56 [2020-08-22 23:02:26,395 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:27,275 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-08-22 23:02:27,982 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 52 [2020-08-22 23:02:29,049 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 189 DAG size of output: 66 [2020-08-22 23:02:30,656 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:31,587 WARN L193 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-22 23:02:32,355 WARN L193 SmtUtils]: Spent 759.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 50 [2020-08-22 23:02:32,850 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 45 [2020-08-22 23:02:34,100 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 209 DAG size of output: 56 [2020-08-22 23:02:35,275 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 188 DAG size of output: 65 [2020-08-22 23:02:36,170 WARN L193 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 56 [2020-08-22 23:02:36,913 WARN L193 SmtUtils]: Spent 734.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 58 [2020-08-22 23:02:37,772 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 51 [2020-08-22 23:02:38,812 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 197 DAG size of output: 56 [2020-08-22 23:02:39,727 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 56 [2020-08-22 23:02:41,064 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:02:42,703 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:43,655 WARN L193 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 54 [2020-08-22 23:02:45,018 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 200 DAG size of output: 60 [2020-08-22 23:02:46,626 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:47,981 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:02:48,676 WARN L193 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-08-22 23:02:49,558 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-08-22 23:02:50,259 WARN L193 SmtUtils]: Spent 692.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 53 [2020-08-22 23:02:51,116 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 56 [2020-08-22 23:02:52,318 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:02:53,941 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:02:54,874 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 57 [2020-08-22 23:02:55,767 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 60 [2020-08-22 23:02:56,681 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 59 [2020-08-22 23:03:19,517 WARN L193 SmtUtils]: Spent 22.82 s on a formula simplification. DAG size of input: 659 DAG size of output: 226 [2020-08-22 23:03:20,884 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:03:44,331 WARN L193 SmtUtils]: Spent 23.41 s on a formula simplification. DAG size of input: 659 DAG size of output: 226 [2020-08-22 23:03:45,368 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 188 DAG size of output: 56 [2020-08-22 23:03:46,257 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 56 [2020-08-22 23:03:47,944 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:03:48,734 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 49 [2020-08-22 23:03:49,753 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 193 DAG size of output: 75 [2020-08-22 23:03:50,678 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 54 [2020-08-22 23:03:52,385 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:03:53,364 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 57 [2020-08-22 23:03:54,550 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 198 DAG size of output: 55 [2020-08-22 23:03:56,240 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:03:57,329 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 203 DAG size of output: 50 [2020-08-22 23:03:58,265 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-08-22 23:03:59,361 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 190 DAG size of output: 55 [2020-08-22 23:04:00,205 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 53 [2020-08-22 23:04:01,903 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:02,678 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:04:03,540 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 54 [2020-08-22 23:04:04,777 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 196 DAG size of output: 63 [2020-08-22 23:04:05,715 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 59 [2020-08-22 23:04:07,098 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 204 DAG size of output: 69 [2020-08-22 23:04:08,817 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:09,632 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 48 [2020-08-22 23:04:11,226 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 206 DAG size of output: 59 [2020-08-22 23:04:12,074 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 51 [2020-08-22 23:04:12,938 WARN L193 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 50 [2020-08-22 23:04:13,715 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 43 [2020-08-22 23:04:15,160 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:04:15,890 WARN L193 SmtUtils]: Spent 722.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:04:16,617 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:04:18,083 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:04:18,821 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:04:20,567 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:22,348 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:24,105 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:24,862 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:04:25,895 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 195 DAG size of output: 54 [2020-08-22 23:04:26,908 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 195 DAG size of output: 54 [2020-08-22 23:04:27,673 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 49 [2020-08-22 23:04:28,603 WARN L193 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 56 [2020-08-22 23:04:30,377 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:32,144 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:33,289 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 197 DAG size of output: 56 [2020-08-22 23:04:34,810 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:04:35,758 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 56 [2020-08-22 23:04:36,795 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 190 DAG size of output: 56 [2020-08-22 23:04:37,834 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 191 DAG size of output: 56 [2020-08-22 23:04:39,266 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 192 DAG size of output: 66 [2020-08-22 23:04:41,034 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:41,991 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 52 [2020-08-22 23:04:43,208 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 192 DAG size of output: 62 [2020-08-22 23:04:44,164 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 51 [2020-08-22 23:04:45,402 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 196 DAG size of output: 55 [2020-08-22 23:04:46,359 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 207 DAG size of output: 52 [2020-08-22 23:04:48,132 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:49,036 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 46 [2020-08-22 23:04:49,939 WARN L193 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 55 [2020-08-22 23:04:50,751 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 48 [2020-08-22 23:04:51,895 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 190 DAG size of output: 68 [2020-08-22 23:04:52,695 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 52 [2020-08-22 23:04:54,172 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:04:54,960 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:04:56,725 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:04:58,207 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:04:59,975 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:05:00,772 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 45 [2020-08-22 23:05:01,519 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:05:02,258 WARN L193 SmtUtils]: Spent 732.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:05:04,084 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:05:04,907 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 51 [2020-08-22 23:05:06,097 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 193 DAG size of output: 54 [2020-08-22 23:05:07,133 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 202 DAG size of output: 57 [2020-08-22 23:05:07,969 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 48 [2020-08-22 23:05:08,763 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:05:10,252 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 280 DAG size of output: 52 [2020-08-22 23:05:10,990 WARN L193 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 35 [2020-08-22 23:05:12,770 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 277 DAG size of output: 63 [2020-08-22 23:05:14,273 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 280 DAG size of output: 52