/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_label01.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:51:22,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:51:22,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:51:22,406 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 22:51:22,415 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:51:22,416 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:51:22,417 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:51:22,418 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:51:22,419 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:51:22,420 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:51:22,422 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:51:22,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:51:22,425 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:51:22,426 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:51:22,427 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:51:22,428 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:51:22,431 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:51:22,438 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:51:22,439 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:51:22,440 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:51:22,441 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 22:51:22,450 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:51:22,451 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:51:22,455 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:51:22,455 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:51:22,455 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:51:22,455 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:51:22,455 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:51:22,458 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:51:22,458 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:51:22,458 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:51:22,458 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:51:22,458 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:51:22,459 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:51:22,459 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:51:22,459 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:51:22,459 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:51:22,459 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:51:22,460 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:51:22,460 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:51:22,460 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:51:22,460 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:51:22,460 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:51:22,461 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 22:51:22,734 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:51:22,747 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:51:22,751 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:51:22,752 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:51:22,753 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:51:22,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-22 22:51:22,830 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b16622c/13c2a7e6bf4349819912558acaed5c42/FLAG98dbe6384 [2020-08-22 22:51:23,453 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:51:23,454 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label01.c [2020-08-22 22:51:23,465 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b16622c/13c2a7e6bf4349819912558acaed5c42/FLAG98dbe6384 [2020-08-22 22:51:23,716 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/96b16622c/13c2a7e6bf4349819912558acaed5c42 [2020-08-22 22:51:23,725 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:51:23,727 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:51:23,728 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:51:23,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:51:23,732 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:51:23,733 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:51:23" (1/1) ... [2020-08-22 22:51:23,736 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d821491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:23, skipping insertion in model container [2020-08-22 22:51:23,736 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:51:23" (1/1) ... [2020-08-22 22:51:23,744 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:51:23,792 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:51:24,359 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:51:24,364 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:51:24,546 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:51:24,566 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:51:24,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24 WrapperNode [2020-08-22 22:51:24,567 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:51:24,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:51:24,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:51:24,569 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:51:24,592 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,592 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,712 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,727 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,737 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (1/1) ... [2020-08-22 22:51:24,749 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:51:24,750 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:51:24,750 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:51:24,750 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:51:24,751 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (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 22:51:24,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:51:24,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:51:24,857 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 22:51:24,858 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:51:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 22:51:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:51:24,858 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:51:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:51:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:51:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:51:24,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:51:26,725 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:51:26,726 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 22:51:26,734 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:51:26 BoogieIcfgContainer [2020-08-22 22:51:26,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:51:26,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:51:26,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:51:26,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:51:26,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:51:23" (1/3) ... [2020-08-22 22:51:26,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca5f783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:51:26, skipping insertion in model container [2020-08-22 22:51:26,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:24" (2/3) ... [2020-08-22 22:51:26,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ca5f783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:51:26, skipping insertion in model container [2020-08-22 22:51:26,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:51:26" (3/3) ... [2020-08-22 22:51:26,746 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label01.c [2020-08-22 22:51:26,758 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:51:26,768 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:51:26,785 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:51:26,812 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:51:26,813 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:51:26,813 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:51:26,813 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:51:26,813 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:51:26,814 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:51:26,814 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:51:26,814 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:51:26,840 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-08-22 22:51:26,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2020-08-22 22:51:26,855 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:26,856 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, 1, 1, 1, 1] [2020-08-22 22:51:26,857 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:26,864 INFO L82 PathProgramCache]: Analyzing trace with hash -899775614, now seen corresponding path program 1 times [2020-08-22 22:51:26,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:26,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [805859369] [2020-08-22 22:51:26,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:27,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:27,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:27,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:27,276 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 22:51:27,277 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [805859369] [2020-08-22 22:51:27,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:51:27,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:51:27,307 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819958707] [2020-08-22 22:51:27,314 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:51:27,314 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:27,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:51:27,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:51:27,336 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-08-22 22:51:31,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:31,312 INFO L93 Difference]: Finished difference Result 1969 states and 2695 transitions. [2020-08-22 22:51:31,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:51:31,314 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 73 [2020-08-22 22:51:31,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:31,344 INFO L225 Difference]: With dead ends: 1969 [2020-08-22 22:51:31,344 INFO L226 Difference]: Without dead ends: 1228 [2020-08-22 22:51:31,359 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 22:51:31,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2020-08-22 22:51:31,532 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 997. [2020-08-22 22:51:31,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-08-22 22:51:31,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1298 transitions. [2020-08-22 22:51:31,543 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1298 transitions. Word has length 73 [2020-08-22 22:51:31,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:31,544 INFO L479 AbstractCegarLoop]: Abstraction has 997 states and 1298 transitions. [2020-08-22 22:51:31,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:51:31,544 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1298 transitions. [2020-08-22 22:51:31,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-08-22 22:51:31,556 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:31,556 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, 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] [2020-08-22 22:51:31,557 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:51:31,557 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:31,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:31,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1043809266, now seen corresponding path program 1 times [2020-08-22 22:51:31,558 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:31,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017218777] [2020-08-22 22:51:31,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:31,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:31,700 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:31,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:31,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:31,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:31,870 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:51:31,871 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017218777] [2020-08-22 22:51:31,871 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:51:31,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 22:51:31,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543494454] [2020-08-22 22:51:31,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:51:31,874 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:31,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:51:31,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:51:31,875 INFO L87 Difference]: Start difference. First operand 997 states and 1298 transitions. Second operand 8 states. [2020-08-22 22:51:35,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:35,102 INFO L93 Difference]: Finished difference Result 2640 states and 3636 transitions. [2020-08-22 22:51:35,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:51:35,103 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 176 [2020-08-22 22:51:35,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:35,128 INFO L225 Difference]: With dead ends: 2640 [2020-08-22 22:51:35,129 INFO L226 Difference]: Without dead ends: 1658 [2020-08-22 22:51:35,136 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 22:51:35,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-08-22 22:51:35,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1584. [2020-08-22 22:51:35,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2020-08-22 22:51:35,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2092 transitions. [2020-08-22 22:51:35,336 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2092 transitions. Word has length 176 [2020-08-22 22:51:35,337 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:35,337 INFO L479 AbstractCegarLoop]: Abstraction has 1584 states and 2092 transitions. [2020-08-22 22:51:35,337 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:51:35,337 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2092 transitions. [2020-08-22 22:51:35,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-08-22 22:51:35,344 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:35,345 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:35,345 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:51:35,345 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:35,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:35,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1103889205, now seen corresponding path program 1 times [2020-08-22 22:51:35,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:35,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1668672975] [2020-08-22 22:51:35,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:35,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:35,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:35,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:35,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:35,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:35,670 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 22:51:35,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:35,793 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 114 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 22:51:35,793 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1668672975] [2020-08-22 22:51:35,793 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:51:35,793 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:51:35,794 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539598072] [2020-08-22 22:51:35,794 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:51:35,795 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:35,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:51:35,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:51:35,796 INFO L87 Difference]: Start difference. First operand 1584 states and 2092 transitions. Second operand 9 states. [2020-08-22 22:51:39,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:39,906 INFO L93 Difference]: Finished difference Result 4160 states and 5530 transitions. [2020-08-22 22:51:39,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:51:39,906 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 252 [2020-08-22 22:51:39,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:39,928 INFO L225 Difference]: With dead ends: 4160 [2020-08-22 22:51:39,928 INFO L226 Difference]: Without dead ends: 2591 [2020-08-22 22:51:39,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:51:39,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2020-08-22 22:51:40,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1978. [2020-08-22 22:51:40,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1978 states. [2020-08-22 22:51:40,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2539 transitions. [2020-08-22 22:51:40,150 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2539 transitions. Word has length 252 [2020-08-22 22:51:40,150 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:40,151 INFO L479 AbstractCegarLoop]: Abstraction has 1978 states and 2539 transitions. [2020-08-22 22:51:40,151 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:51:40,151 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2539 transitions. [2020-08-22 22:51:40,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-08-22 22:51:40,162 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:40,162 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:51:40,163 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:51:40,163 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:40,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:40,163 INFO L82 PathProgramCache]: Analyzing trace with hash 236016967, now seen corresponding path program 1 times [2020-08-22 22:51:40,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:40,164 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [387027295] [2020-08-22 22:51:40,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:40,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:40,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:40,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:40,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:40,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:40,375 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 22:51:40,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:40,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 22:51:40,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:40,703 INFO L134 CoverageAnalysis]: Checked inductivity of 429 backedges. 171 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-08-22 22:51:40,705 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [387027295] [2020-08-22 22:51:40,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:51:40,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:51:40,706 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511047562] [2020-08-22 22:51:40,707 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:51:40,707 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:40,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:51:40,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:51:40,708 INFO L87 Difference]: Start difference. First operand 1978 states and 2539 transitions. Second operand 9 states. [2020-08-22 22:51:43,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:43,832 INFO L93 Difference]: Finished difference Result 4028 states and 5281 transitions. [2020-08-22 22:51:43,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:51:43,832 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 382 [2020-08-22 22:51:43,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:43,849 INFO L225 Difference]: With dead ends: 4028 [2020-08-22 22:51:43,849 INFO L226 Difference]: Without dead ends: 2447 [2020-08-22 22:51:43,856 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 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 22:51:43,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2020-08-22 22:51:44,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2410. [2020-08-22 22:51:44,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2410 states. [2020-08-22 22:51:44,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3018 transitions. [2020-08-22 22:51:44,087 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3018 transitions. Word has length 382 [2020-08-22 22:51:44,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:44,087 INFO L479 AbstractCegarLoop]: Abstraction has 2410 states and 3018 transitions. [2020-08-22 22:51:44,088 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:51:44,088 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3018 transitions. [2020-08-22 22:51:44,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-08-22 22:51:44,100 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:44,100 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:44,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:51:44,101 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:44,101 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:44,101 INFO L82 PathProgramCache]: Analyzing trace with hash 1150276446, now seen corresponding path program 1 times [2020-08-22 22:51:44,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:44,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1844732246] [2020-08-22 22:51:44,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:44,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:44,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:44,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:44,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:44,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:44,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 22:51:44,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:44,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-08-22 22:51:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:45,321 INFO L134 CoverageAnalysis]: Checked inductivity of 451 backedges. 217 proven. 221 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-22 22:51:45,321 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1844732246] [2020-08-22 22:51:45,322 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:51:45,322 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:51:45,323 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467915441] [2020-08-22 22:51:45,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:51:45,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:45,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:51:45,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:51:45,326 INFO L87 Difference]: Start difference. First operand 2410 states and 3018 transitions. Second operand 11 states. [2020-08-22 22:51:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:50,332 INFO L93 Difference]: Finished difference Result 5421 states and 6855 transitions. [2020-08-22 22:51:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 22:51:50,333 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 392 [2020-08-22 22:51:50,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:50,357 INFO L225 Difference]: With dead ends: 5421 [2020-08-22 22:51:50,357 INFO L226 Difference]: Without dead ends: 3260 [2020-08-22 22:51:50,368 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-08-22 22:51:50,371 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2020-08-22 22:51:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3204. [2020-08-22 22:51:50,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3204 states. [2020-08-22 22:51:50,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 3876 transitions. [2020-08-22 22:51:50,768 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 3876 transitions. Word has length 392 [2020-08-22 22:51:50,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:50,768 INFO L479 AbstractCegarLoop]: Abstraction has 3204 states and 3876 transitions. [2020-08-22 22:51:50,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:51:50,769 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 3876 transitions. [2020-08-22 22:51:50,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 536 [2020-08-22 22:51:50,786 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:50,786 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 22:51:50,787 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:51:50,787 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:50,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:50,787 INFO L82 PathProgramCache]: Analyzing trace with hash -1671549067, now seen corresponding path program 1 times [2020-08-22 22:51:50,788 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:50,788 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [117712710] [2020-08-22 22:51:50,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:50,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:50,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:50,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:50,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:50,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:51,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:51:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:51,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:51:51,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:51,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2020-08-22 22:51:51,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:51,498 INFO L134 CoverageAnalysis]: Checked inductivity of 874 backedges. 533 proven. 2 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2020-08-22 22:51:51,499 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [117712710] [2020-08-22 22:51:51,500 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:51:51,501 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:51:51,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995199063] [2020-08-22 22:51:51,511 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:51:51,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:51,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:51:51,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:51:51,512 INFO L87 Difference]: Start difference. First operand 3204 states and 3876 transitions. Second operand 7 states. [2020-08-22 22:51:55,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:55,551 INFO L93 Difference]: Finished difference Result 7056 states and 8950 transitions. [2020-08-22 22:51:55,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:51:55,552 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 535 [2020-08-22 22:51:55,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:55,577 INFO L225 Difference]: With dead ends: 7056 [2020-08-22 22:51:55,577 INFO L226 Difference]: Without dead ends: 4249 [2020-08-22 22:51:55,589 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 22:51:55,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4249 states. [2020-08-22 22:51:56,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4249 to 4010. [2020-08-22 22:51:56,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4010 states. [2020-08-22 22:51:56,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 4864 transitions. [2020-08-22 22:51:56,099 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 4864 transitions. Word has length 535 [2020-08-22 22:51:56,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:56,100 INFO L479 AbstractCegarLoop]: Abstraction has 4010 states and 4864 transitions. [2020-08-22 22:51:56,100 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:51:56,100 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 4864 transitions. [2020-08-22 22:51:56,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2020-08-22 22:51:56,118 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:56,118 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 22:51:56,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:51:56,119 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:56,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:56,119 INFO L82 PathProgramCache]: Analyzing trace with hash 1767916011, now seen corresponding path program 1 times [2020-08-22 22:51:56,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:56,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [714921794] [2020-08-22 22:51:56,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:56,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:56,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:56,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:56,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:56,381 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:51:56,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:56,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:51:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:56,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2020-08-22 22:51:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:57,108 INFO L134 CoverageAnalysis]: Checked inductivity of 907 backedges. 571 proven. 222 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-08-22 22:51:57,109 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [714921794] [2020-08-22 22:51:57,109 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:51:57,109 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 22:51:57,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779358649] [2020-08-22 22:51:57,110 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:51:57,110 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:57,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:51:57,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:51:57,111 INFO L87 Difference]: Start difference. First operand 4010 states and 4864 transitions. Second operand 12 states. [2020-08-22 22:52:05,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:05,477 INFO L93 Difference]: Finished difference Result 9423 states and 11610 transitions. [2020-08-22 22:52:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-08-22 22:52:05,478 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 547 [2020-08-22 22:52:05,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:05,520 INFO L225 Difference]: With dead ends: 9423 [2020-08-22 22:52:05,521 INFO L226 Difference]: Without dead ends: 5810 [2020-08-22 22:52:05,536 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=1834, Unknown=0, NotChecked=0, Total=2256 [2020-08-22 22:52:05,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5810 states. [2020-08-22 22:52:06,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 3809. [2020-08-22 22:52:06,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3809 states. [2020-08-22 22:52:06,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4607 transitions. [2020-08-22 22:52:06,110 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4607 transitions. Word has length 547 [2020-08-22 22:52:06,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:06,111 INFO L479 AbstractCegarLoop]: Abstraction has 3809 states and 4607 transitions. [2020-08-22 22:52:06,111 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:52:06,112 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4607 transitions. [2020-08-22 22:52:06,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 630 [2020-08-22 22:52:06,121 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:06,122 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 22:52:06,122 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 22:52:06,122 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:06,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:06,123 INFO L82 PathProgramCache]: Analyzing trace with hash -1701847328, now seen corresponding path program 1 times [2020-08-22 22:52:06,123 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:06,124 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1208182414] [2020-08-22 22:52:06,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:06,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:06,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:06,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:06,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,408 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-08-22 22:52:06,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,452 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-08-22 22:52:06,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:06,675 INFO L134 CoverageAnalysis]: Checked inductivity of 1276 backedges. 482 proven. 140 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2020-08-22 22:52:06,675 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1208182414] [2020-08-22 22:52:06,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:06,675 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:52:06,676 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985272098] [2020-08-22 22:52:06,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:52:06,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:06,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:52:06,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:52:06,677 INFO L87 Difference]: Start difference. First operand 3809 states and 4607 transitions. Second operand 7 states. [2020-08-22 22:52:10,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:10,003 INFO L93 Difference]: Finished difference Result 8345 states and 10502 transitions. [2020-08-22 22:52:10,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:52:10,004 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 629 [2020-08-22 22:52:10,005 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:10,033 INFO L225 Difference]: With dead ends: 8345 [2020-08-22 22:52:10,033 INFO L226 Difference]: Without dead ends: 4933 [2020-08-22 22:52:10,045 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:52:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2020-08-22 22:52:10,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4902. [2020-08-22 22:52:10,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4902 states. [2020-08-22 22:52:10,752 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6054 transitions. [2020-08-22 22:52:10,752 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6054 transitions. Word has length 629 [2020-08-22 22:52:10,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:10,753 INFO L479 AbstractCegarLoop]: Abstraction has 4902 states and 6054 transitions. [2020-08-22 22:52:10,753 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:52:10,753 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6054 transitions. [2020-08-22 22:52:10,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2020-08-22 22:52:10,766 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:10,766 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-08-22 22:52:10,767 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 22:52:10,767 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:10,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:10,767 INFO L82 PathProgramCache]: Analyzing trace with hash -152616271, now seen corresponding path program 1 times [2020-08-22 22:52:10,767 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:10,768 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [437740204] [2020-08-22 22:52:10,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:10,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:10,952 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:10,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:10,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:10,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:11,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:11,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-08-22 22:52:11,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2020-08-22 22:52:11,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,827 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 742 proven. 220 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-08-22 22:52:11,828 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [437740204] [2020-08-22 22:52:11,828 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:11,828 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 22:52:11,829 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [312885686] [2020-08-22 22:52:11,830 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:52:11,832 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:11,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:52:11,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:11,833 INFO L87 Difference]: Start difference. First operand 4902 states and 6054 transitions. Second operand 13 states. [2020-08-22 22:52:17,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:17,696 INFO L93 Difference]: Finished difference Result 10545 states and 13016 transitions. [2020-08-22 22:52:17,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 22:52:17,697 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 630 [2020-08-22 22:52:17,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:17,723 INFO L225 Difference]: With dead ends: 10545 [2020-08-22 22:52:17,724 INFO L226 Difference]: Without dead ends: 5913 [2020-08-22 22:52:17,737 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2020-08-22 22:52:17,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2020-08-22 22:52:18,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5460. [2020-08-22 22:52:18,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5460 states. [2020-08-22 22:52:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 6579 transitions. [2020-08-22 22:52:18,424 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 6579 transitions. Word has length 630 [2020-08-22 22:52:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:18,425 INFO L479 AbstractCegarLoop]: Abstraction has 5460 states and 6579 transitions. [2020-08-22 22:52:18,425 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:52:18,425 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 6579 transitions. [2020-08-22 22:52:18,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 695 [2020-08-22 22:52:18,438 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:18,439 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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 22:52:18,439 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 22:52:18,439 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:18,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:18,440 INFO L82 PathProgramCache]: Analyzing trace with hash -1640646942, now seen corresponding path program 1 times [2020-08-22 22:52:18,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:18,440 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2017554372] [2020-08-22 22:52:18,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:18,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:18,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:18,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:18,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:18,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-08-22 22:52:18,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:19,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2020-08-22 22:52:19,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:19,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1424 backedges. 805 proven. 301 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-08-22 22:52:19,574 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2017554372] [2020-08-22 22:52:19,575 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:19,575 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 22:52:19,575 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1489682267] [2020-08-22 22:52:19,576 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:52:19,576 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:19,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:52:19,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:19,576 INFO L87 Difference]: Start difference. First operand 5460 states and 6579 transitions. Second operand 13 states. [2020-08-22 22:52:25,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:25,885 INFO L93 Difference]: Finished difference Result 12672 states and 15791 transitions. [2020-08-22 22:52:25,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 22:52:25,886 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 694 [2020-08-22 22:52:25,887 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:25,940 INFO L225 Difference]: With dead ends: 12672 [2020-08-22 22:52:25,940 INFO L226 Difference]: Without dead ends: 7496 [2020-08-22 22:52:25,961 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 22:52:25,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2020-08-22 22:52:26,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7222. [2020-08-22 22:52:26,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7222 states. [2020-08-22 22:52:26,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7222 states to 7222 states and 8926 transitions. [2020-08-22 22:52:26,865 INFO L78 Accepts]: Start accepts. Automaton has 7222 states and 8926 transitions. Word has length 694 [2020-08-22 22:52:26,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:26,866 INFO L479 AbstractCegarLoop]: Abstraction has 7222 states and 8926 transitions. [2020-08-22 22:52:26,866 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:52:26,866 INFO L276 IsEmpty]: Start isEmpty. Operand 7222 states and 8926 transitions. [2020-08-22 22:52:26,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 757 [2020-08-22 22:52:26,881 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:26,882 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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:26,882 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 22:52:26,882 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:26,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:26,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1310394998, now seen corresponding path program 1 times [2020-08-22 22:52:26,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:26,883 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [315230891] [2020-08-22 22:52:26,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:26,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,052 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:27,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:27,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,097 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:27,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,412 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2020-08-22 22:52:27,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:27,508 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-08-22 22:52:27,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:28,004 INFO L134 CoverageAnalysis]: Checked inductivity of 1445 backedges. 562 proven. 240 refuted. 0 times theorem prover too weak. 643 trivial. 0 not checked. [2020-08-22 22:52:28,005 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [315230891] [2020-08-22 22:52:28,005 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:28,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:52:28,006 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188633425] [2020-08-22 22:52:28,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:52:28,007 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:28,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:52:28,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:52:28,008 INFO L87 Difference]: Start difference. First operand 7222 states and 8926 transitions. Second operand 11 states. [2020-08-22 22:52:29,150 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-08-22 22:52:37,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:37,073 INFO L93 Difference]: Finished difference Result 15444 states and 19204 transitions. [2020-08-22 22:52:37,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-22 22:52:37,074 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 756 [2020-08-22 22:52:37,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:37,121 INFO L225 Difference]: With dead ends: 15444 [2020-08-22 22:52:37,121 INFO L226 Difference]: Without dead ends: 8619 [2020-08-22 22:52:37,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2020-08-22 22:52:37,150 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8619 states. [2020-08-22 22:52:38,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8619 to 8386. [2020-08-22 22:52:38,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8386 states. [2020-08-22 22:52:38,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8386 states to 8386 states and 10391 transitions. [2020-08-22 22:52:38,237 INFO L78 Accepts]: Start accepts. Automaton has 8386 states and 10391 transitions. Word has length 756 [2020-08-22 22:52:38,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:38,237 INFO L479 AbstractCegarLoop]: Abstraction has 8386 states and 10391 transitions. [2020-08-22 22:52:38,237 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:52:38,238 INFO L276 IsEmpty]: Start isEmpty. Operand 8386 states and 10391 transitions. [2020-08-22 22:52:38,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 907 [2020-08-22 22:52:38,253 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:38,253 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, 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, 5, 5, 5, 5, 4, 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, 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 22:52:38,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 22:52:38,254 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:38,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:38,254 INFO L82 PathProgramCache]: Analyzing trace with hash 2028937934, now seen corresponding path program 1 times [2020-08-22 22:52:38,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:38,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1493863276] [2020-08-22 22:52:38,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:38,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:38,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:38,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:38,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:38,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:52:38,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:52:38,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,843 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2020-08-22 22:52:38,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:39,368 INFO L134 CoverageAnalysis]: Checked inductivity of 2116 backedges. 903 proven. 37 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2020-08-22 22:52:39,369 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1493863276] [2020-08-22 22:52:39,369 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:39,369 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:52:39,370 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1575956545] [2020-08-22 22:52:39,370 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:52:39,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:39,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:52:39,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:52:39,371 INFO L87 Difference]: Start difference. First operand 8386 states and 10391 transitions. Second operand 9 states. [2020-08-22 22:52:42,332 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2020-08-22 22:52:45,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:45,944 INFO L93 Difference]: Finished difference Result 19852 states and 24894 transitions. [2020-08-22 22:52:45,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 22:52:45,944 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 906 [2020-08-22 22:52:45,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:46,006 INFO L225 Difference]: With dead ends: 19852 [2020-08-22 22:52:46,006 INFO L226 Difference]: Without dead ends: 11863 [2020-08-22 22:52:46,028 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-08-22 22:52:46,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11863 states. [2020-08-22 22:52:48,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11863 to 10676. [2020-08-22 22:52:48,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10676 states. [2020-08-22 22:52:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10676 states to 10676 states and 13128 transitions. [2020-08-22 22:52:48,362 INFO L78 Accepts]: Start accepts. Automaton has 10676 states and 13128 transitions. Word has length 906 [2020-08-22 22:52:48,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:48,362 INFO L479 AbstractCegarLoop]: Abstraction has 10676 states and 13128 transitions. [2020-08-22 22:52:48,362 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:52:48,363 INFO L276 IsEmpty]: Start isEmpty. Operand 10676 states and 13128 transitions. [2020-08-22 22:52:48,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 923 [2020-08-22 22:52:48,377 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:48,378 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 4, 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, 1, 1, 1, 1] [2020-08-22 22:52:48,378 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 22:52:48,378 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:48,378 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:48,378 INFO L82 PathProgramCache]: Analyzing trace with hash 1505873514, now seen corresponding path program 1 times [2020-08-22 22:52:48,379 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:48,379 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1087947451] [2020-08-22 22:52:48,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:48,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,601 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:48,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,649 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:48,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:48,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:52:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:52:48,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2020-08-22 22:52:48,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:48,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2020-08-22 22:52:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:49,256 INFO L134 CoverageAnalysis]: Checked inductivity of 2589 backedges. 415 proven. 56 refuted. 0 times theorem prover too weak. 2118 trivial. 0 not checked. [2020-08-22 22:52:49,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1087947451] [2020-08-22 22:52:49,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:49,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:52:49,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94659416] [2020-08-22 22:52:49,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:52:49,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:49,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:52:49,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:52:49,259 INFO L87 Difference]: Start difference. First operand 10676 states and 13128 transitions. Second operand 8 states. [2020-08-22 22:52:55,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:55,511 INFO L93 Difference]: Finished difference Result 13529 states and 16798 transitions. [2020-08-22 22:52:55,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-08-22 22:52:55,512 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 922 [2020-08-22 22:52:55,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:55,518 INFO L225 Difference]: With dead ends: 13529 [2020-08-22 22:52:55,518 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:52:55,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=101, Invalid=205, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:52:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:52:55,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:52:55,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:52:55,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:52:55,544 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 922 [2020-08-22 22:52:55,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:55,545 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:52:55,545 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:52:55,545 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:52:55,545 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:52:55,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 22:52:55,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:52:57,238 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:52:57,950 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:52:59,424 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:53:04,428 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 84 [2020-08-22 22:53:08,964 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-22 22:53:13,192 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-08-22 22:53:15,106 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:53:21,938 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 45 [2020-08-22 22:53:26,544 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2020-08-22 22:53:30,681 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 92 [2020-08-22 22:53:34,644 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-08-22 22:53:46,950 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 78 [2020-08-22 22:53:51,870 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-08-22 22:53:56,459 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 78 [2020-08-22 22:54:01,494 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:54:06,127 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-08-22 22:54:38,974 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:54:44,450 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 202 [2020-08-22 22:54:45,174 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 205 [2020-08-22 22:54:45,473 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 188 [2020-08-22 22:54:46,153 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 196 [2020-08-22 22:54:46,782 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 219 [2020-08-22 22:54:47,198 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 203 [2020-08-22 22:54:47,589 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 209 [2020-08-22 22:54:48,109 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 202 [2020-08-22 22:54:48,836 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 256 DAG size of output: 206 [2020-08-22 22:54:49,129 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 243 DAG size of output: 189 [2020-08-22 22:54:49,816 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 196 [2020-08-22 22:54:50,452 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 273 DAG size of output: 219 [2020-08-22 22:54:50,875 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 204 [2020-08-22 22:54:51,252 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 259 DAG size of output: 209 [2020-08-22 22:55:12,580 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 167 [2020-08-22 22:55:13,240 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 166 [2020-08-22 22:55:13,544 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 166 [2020-08-22 22:55:13,886 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 166 [2020-08-22 22:55:36,601 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 219 DAG size of output: 63 [2020-08-22 22:55:39,194 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 395 DAG size of output: 95 [2020-08-22 22:55:40,297 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 210 DAG size of output: 63 [2020-08-22 22:55:41,493 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 229 DAG size of output: 62 [2020-08-22 22:55:42,305 WARN L193 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-08-22 22:55:43,736 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 244 DAG size of output: 67 [2020-08-22 22:55:44,968 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 231 DAG size of output: 73 [2020-08-22 22:55:46,108 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 63 [2020-08-22 22:55:46,890 WARN L193 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-08-22 22:55:49,477 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:55:50,524 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:55:53,187 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:55:53,993 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-08-22 22:55:55,127 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 236 DAG size of output: 65 [2020-08-22 22:55:56,257 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 223 DAG size of output: 59 [2020-08-22 22:55:57,857 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 215 DAG size of output: 75 [2020-08-22 22:55:59,015 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 224 DAG size of output: 62 [2020-08-22 22:56:00,303 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 243 DAG size of output: 63 [2020-08-22 22:56:01,360 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 206 DAG size of output: 62 [2020-08-22 22:56:02,376 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 220 DAG size of output: 60 [2020-08-22 22:56:03,877 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 219 DAG size of output: 72 [2020-08-22 22:56:05,295 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 235 DAG size of output: 62 [2020-08-22 22:56:07,697 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:56:09,106 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 246 DAG size of output: 74 [2020-08-22 22:56:10,259 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 226 DAG size of output: 60 [2020-08-22 22:56:11,364 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 213 DAG size of output: 67 [2020-08-22 22:56:13,267 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 234 DAG size of output: 66 [2020-08-22 22:56:14,280 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 211 DAG size of output: 62 [2020-08-22 22:56:15,315 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 219 DAG size of output: 63 [2020-08-22 22:56:17,072 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 273 DAG size of output: 82 [2020-08-22 22:56:18,165 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 206 DAG size of output: 64 [2020-08-22 22:56:19,227 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 209 DAG size of output: 64 [2020-08-22 22:56:20,916 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 238 DAG size of output: 77 [2020-08-22 22:56:22,310 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 234 DAG size of output: 67 [2020-08-22 22:56:24,990 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:56:26,691 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 258 DAG size of output: 79 [2020-08-22 22:56:27,701 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 60 [2020-08-22 22:56:30,419 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:56:31,564 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-08-22 22:56:32,831 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 221 DAG size of output: 64 [2020-08-22 22:56:34,529 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 226 DAG size of output: 82 [2020-08-22 22:56:35,597 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 205 DAG size of output: 63 [2020-08-22 22:56:38,315 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:56:39,667 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 220 DAG size of output: 79 [2020-08-22 22:56:41,159 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 244 DAG size of output: 68 [2020-08-22 22:56:42,322 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 236 DAG size of output: 65 [2020-08-22 22:56:45,046 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:56:46,200 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 211 DAG size of output: 62 [2020-08-22 22:56:48,890 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:56:50,149 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 231 DAG size of output: 61 [2020-08-22 22:56:51,318 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 226 DAG size of output: 60 [2020-08-22 22:56:52,988 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 225 DAG size of output: 93 [2020-08-22 22:56:54,356 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 246 DAG size of output: 74 [2020-08-22 22:56:55,474 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 206 DAG size of output: 62 [2020-08-22 22:56:58,271 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:00,080 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 240 DAG size of output: 73 [2020-08-22 22:57:01,368 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 220 DAG size of output: 74 [2020-08-22 22:57:02,927 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 238 DAG size of output: 84 [2020-08-22 22:57:04,460 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 237 DAG size of output: 76 [2020-08-22 22:57:05,566 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 226 DAG size of output: 64 [2020-08-22 22:57:06,958 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 244 DAG size of output: 70 [2020-08-22 22:57:09,735 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:12,523 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:15,305 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:18,143 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:19,899 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 220 DAG size of output: 88 [2020-08-22 22:57:20,963 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 209 DAG size of output: 59 [2020-08-22 22:57:22,691 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 225 DAG size of output: 93 [2020-08-22 22:57:23,945 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 223 DAG size of output: 66 [2020-08-22 22:57:24,964 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 209 DAG size of output: 60 [2020-08-22 22:57:27,808 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:28,878 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 209 DAG size of output: 61 [2020-08-22 22:57:29,991 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 220 DAG size of output: 60 [2020-08-22 22:57:32,834 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:57:34,013 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 217 DAG size of output: 66 [2020-08-22 22:57:35,449 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 244 DAG size of output: 70 [2020-08-22 22:57:36,901 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 244 DAG size of output: 70 [2020-08-22 22:57:39,480 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:57:40,402 WARN L193 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-08-22 22:57:41,534 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:57:42,683 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:57:43,788 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 22:57:46,410 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:57:47,541 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:57:50,216 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:57:51,337 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:57:52,470 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 22:57:54,556 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 22:57:56,596 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 22:57:57,729 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 22:57:59,799 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 22:58:01,896 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 22:58:04,551 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:58:05,795 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 211 DAG size of output: 69 [2020-08-22 22:58:06,959 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:58:08,185 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 211 DAG size of output: 69 [2020-08-22 22:58:10,860 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:58:12,006 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 22:58:14,702 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:58:16,534 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 220 DAG size of output: 73 [2020-08-22 22:58:18,298 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 240 DAG size of output: 74 [2020-08-22 22:58:19,590 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-08-22 22:58:22,462 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 395 DAG size of output: 95 [2020-08-22 22:58:23,532 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 209 DAG size of output: 58 [2020-08-22 22:58:24,749 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 225 DAG size of output: 70 [2020-08-22 22:58:26,015 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 215 DAG size of output: 61 [2020-08-22 22:58:28,958 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:58:30,090 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 205 DAG size of output: 59 [2020-08-22 22:58:31,229 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 217 DAG size of output: 57 [2020-08-22 22:58:33,085 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 258 DAG size of output: 79 [2020-08-22 22:58:34,323 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 22:58:35,517 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 219 DAG size of output: 63 [2020-08-22 22:58:36,978 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 231 DAG size of output: 61 [2020-08-22 22:58:38,201 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 222 DAG size of output: 63 [2020-08-22 22:58:39,369 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 210 DAG size of output: 61 [2020-08-22 22:58:40,820 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 223 DAG size of output: 72 [2020-08-22 22:58:42,324 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 222 DAG size of output: 66 [2020-08-22 22:58:45,068 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:58:46,459 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 224 DAG size of output: 62 [2020-08-22 22:58:49,235 WARN L193 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:58:50,777 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 246 DAG size of output: 74 [2020-08-22 22:58:52,139 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 225 DAG size of output: 59 [2020-08-22 22:58:54,386 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 273 DAG size of output: 78 [2020-08-22 22:58:55,452 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 208 DAG size of output: 61 [2020-08-22 22:58:56,585 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 216 DAG size of output: 64 [2020-08-22 22:58:57,663 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 207 DAG size of output: 58 [2020-08-22 22:58:59,488 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 226 DAG size of output: 82 [2020-08-22 22:59:01,090 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 219 DAG size of output: 84 [2020-08-22 22:59:02,251 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 212 DAG size of output: 66 [2020-08-22 22:59:03,520 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 212 DAG size of output: 64 [2020-08-22 22:59:06,245 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 395 DAG size of output: 95 [2020-08-22 22:59:07,294 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 208 DAG size of output: 61 [2020-08-22 22:59:09,378 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 242 DAG size of output: 73 [2020-08-22 22:59:10,515 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 59 [2020-08-22 22:59:11,762 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 226 DAG size of output: 72 [2020-08-22 22:59:12,873 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 22:59:15,494 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:59:16,573 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 205 DAG size of output: 63 [2020-08-22 22:59:17,841 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 225 DAG size of output: 62 [2020-08-22 22:59:20,495 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:59:21,853 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 222 DAG size of output: 63 [2020-08-22 22:59:23,292 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 225 DAG size of output: 74 [2020-08-22 22:59:24,409 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 219 DAG size of output: 63 [2020-08-22 22:59:25,688 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 217 DAG size of output: 65 [2020-08-22 22:59:28,324 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 22:59:31,252 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:59:32,833 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 223 DAG size of output: 91 [2020-08-22 22:59:34,484 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 228 DAG size of output: 67 [2020-08-22 22:59:36,333 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 265 DAG size of output: 76 [2020-08-22 22:59:37,700 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 210 DAG size of output: 61 [2020-08-22 22:59:39,454 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 237 DAG size of output: 77 [2020-08-22 22:59:42,245 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:59:43,552 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 236 DAG size of output: 59 [2020-08-22 22:59:45,157 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 225 DAG size of output: 75 [2020-08-22 22:59:46,612 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 220 DAG size of output: 79 [2020-08-22 22:59:47,990 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 223 DAG size of output: 65 [2020-08-22 22:59:49,790 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 239 DAG size of output: 91 [2020-08-22 22:59:51,005 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 211 DAG size of output: 59 [2020-08-22 22:59:53,937 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:59:56,906 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 22:59:58,580 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 238 DAG size of output: 84 [2020-08-22 23:00:00,458 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 258 DAG size of output: 79 [2020-08-22 23:00:03,170 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 306 DAG size of output: 77 [2020-08-22 23:00:06,160 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:00:07,268 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 211 DAG size of output: 63 [2020-08-22 23:00:08,457 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 222 DAG size of output: 63 [2020-08-22 23:00:09,535 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 210 DAG size of output: 58 [2020-08-22 23:00:12,552 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:00:14,198 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 228 DAG size of output: 67 [2020-08-22 23:00:15,343 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 226 DAG size of output: 58 [2020-08-22 23:00:16,700 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 224 DAG size of output: 62 [2020-08-22 23:00:19,437 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:20,627 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:00:23,384 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:24,543 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:00:26,019 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 223 DAG size of output: 67 [2020-08-22 23:00:28,105 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 269 DAG size of output: 73 [2020-08-22 23:00:30,865 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:32,547 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 237 DAG size of output: 79 [2020-08-22 23:00:34,567 WARN L193 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:00:36,770 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:00:37,999 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 211 DAG size of output: 69 [2020-08-22 23:00:39,194 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:00:40,326 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:00:43,167 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:44,382 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:00:47,141 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:49,967 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:00:51,335 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 221 DAG size of output: 58 [2020-08-22 23:00:52,644 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 224 DAG size of output: 62 [2020-08-22 23:00:54,249 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 234 DAG size of output: 67 [2020-08-22 23:00:56,408 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 245 DAG size of output: 82 [2020-08-22 23:00:57,680 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 206 DAG size of output: 64 [2020-08-22 23:00:59,570 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 258 DAG size of output: 79 [2020-08-22 23:01:01,029 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 219 DAG size of output: 82 [2020-08-22 23:01:02,379 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 236 DAG size of output: 65 [2020-08-22 23:01:05,447 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:01:07,040 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 231 DAG size of output: 68 [2020-08-22 23:01:08,500 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 228 DAG size of output: 63 [2020-08-22 23:01:09,746 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 206 DAG size of output: 62 [2020-08-22 23:01:10,870 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 213 DAG size of output: 61 [2020-08-22 23:01:12,514 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 224 DAG size of output: 61 [2020-08-22 23:01:13,822 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-08-22 23:01:15,175 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 208 DAG size of output: 60 [2020-08-22 23:01:18,020 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:01:19,227 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:01:22,213 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 395 DAG size of output: 95 [2020-08-22 23:01:23,465 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:01:24,748 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 215 DAG size of output: 61 [2020-08-22 23:01:25,893 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 224 DAG size of output: 58 [2020-08-22 23:01:27,403 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 229 DAG size of output: 69 [2020-08-22 23:01:30,493 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:01:31,624 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 210 DAG size of output: 61 [2020-08-22 23:01:33,292 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 214 DAG size of output: 68 [2020-08-22 23:01:34,471 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 209 DAG size of output: 61 [2020-08-22 23:01:35,656 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 207 DAG size of output: 58 [2020-08-22 23:01:37,420 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 238 DAG size of output: 84 [2020-08-22 23:01:38,660 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:01:39,942 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 206 DAG size of output: 62 [2020-08-22 23:01:41,128 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 220 DAG size of output: 60 [2020-08-22 23:01:42,333 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 226 DAG size of output: 58 [2020-08-22 23:01:44,205 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 230 DAG size of output: 82 [2020-08-22 23:01:45,420 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 205 DAG size of output: 63 [2020-08-22 23:01:46,881 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 220 DAG size of output: 74 [2020-08-22 23:01:48,410 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 243 DAG size of output: 63 [2020-08-22 23:01:51,568 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:01:54,469 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:01:56,165 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 228 DAG size of output: 73 [2020-08-22 23:01:57,930 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 253 DAG size of output: 77 [2020-08-22 23:01:59,287 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 213 DAG size of output: 67 [2020-08-22 23:02:00,825 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 243 DAG size of output: 63 [2020-08-22 23:02:02,029 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 205 DAG size of output: 59 [2020-08-22 23:02:03,381 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 217 DAG size of output: 61 [2020-08-22 23:02:06,282 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:02:07,470 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 210 DAG size of output: 58 [2020-08-22 23:02:10,532 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 395 DAG size of output: 95 [2020-08-22 23:02:11,995 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 229 DAG size of output: 62 [2020-08-22 23:02:13,094 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 208 DAG size of output: 56 [2020-08-22 23:02:14,693 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 243 DAG size of output: 63 [2020-08-22 23:02:15,930 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 210 DAG size of output: 67 [2020-08-22 23:02:17,251 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 210 DAG size of output: 59 [2020-08-22 23:02:18,664 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-08-22 23:02:20,208 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 213 DAG size of output: 60 [2020-08-22 23:02:21,895 WARN L193 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 234 DAG size of output: 67 [2020-08-22 23:02:23,300 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 219 DAG size of output: 67 [2020-08-22 23:02:25,152 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 240 DAG size of output: 74 [2020-08-22 23:02:26,477 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 217 DAG size of output: 61 [2020-08-22 23:02:29,533 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:30,941 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 223 DAG size of output: 72 [2020-08-22 23:02:33,855 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:36,853 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:38,616 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 220 DAG size of output: 72 [2020-08-22 23:02:40,231 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 225 DAG size of output: 69 [2020-08-22 23:02:43,299 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:44,875 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 231 DAG size of output: 68 [2020-08-22 23:02:46,296 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 221 DAG size of output: 76 [2020-08-22 23:02:49,353 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:51,741 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 292 DAG size of output: 81 [2020-08-22 23:02:53,040 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 210 DAG size of output: 67 [2020-08-22 23:02:54,135 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 211 DAG size of output: 62 [2020-08-22 23:02:57,127 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:02:58,299 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 205 DAG size of output: 63 [2020-08-22 23:02:59,235 WARN L193 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 43 [2020-08-22 23:03:01,020 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 240 DAG size of output: 74 [2020-08-22 23:03:04,024 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:03:05,183 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 226 DAG size of output: 58 [2020-08-22 23:03:06,256 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 213 DAG size of output: 59 [2020-08-22 23:03:07,548 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 213 DAG size of output: 59 [2020-08-22 23:03:09,431 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 226 DAG size of output: 82 [2020-08-22 23:03:10,846 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 239 DAG size of output: 59 [2020-08-22 23:03:12,117 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 220 DAG size of output: 65 [2020-08-22 23:03:13,387 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 223 DAG size of output: 67 [2020-08-22 23:03:16,363 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:03:17,586 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:03:20,311 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:03:23,073 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:03:24,232 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:03:25,217 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-08-22 23:03:26,494 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 223 DAG size of output: 67 [2020-08-22 23:03:29,242 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:03:30,461 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 211 DAG size of output: 69 [2020-08-22 23:03:31,760 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 221 DAG size of output: 58 [2020-08-22 23:03:32,936 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 212 DAG size of output: 63 [2020-08-22 23:03:34,300 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 217 DAG size of output: 63 [2020-08-22 23:03:35,533 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:03:37,467 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 220 DAG size of output: 88 [2020-08-22 23:03:39,704 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:03:41,931 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:03:43,171 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:03:44,369 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:03:45,561 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:03:48,370 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:03:49,579 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:03:50,791 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:03:53,708 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:03:54,971 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 211 DAG size of output: 69 [2020-08-22 23:03:57,789 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:04:00,656 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:04:01,881 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-08-22 23:04:03,208 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 236 DAG size of output: 65 [2020-08-22 23:04:06,150 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 376 DAG size of output: 72 [2020-08-22 23:04:07,420 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 211 DAG size of output: 54 [2020-08-22 23:04:08,690 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 206 DAG size of output: 64 [2020-08-22 23:04:10,903 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:04:13,154 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:04:15,400 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 363 DAG size of output: 80 [2020-08-22 23:04:16,626 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 213 DAG size of output: 58 [2020-08-22 23:04:17,955 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 215 DAG size of output: 61 [2020-08-22 23:04:21,136 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:04:22,416 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 219 DAG size of output: 63 [2020-08-22 23:04:23,733 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 227 DAG size of output: 60 [2020-08-22 23:04:26,954 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:04:28,550 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 220 DAG size of output: 79 [2020-08-22 23:04:31,794 WARN L193 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 390 DAG size of output: 91 [2020-08-22 23:04:33,083 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 213 DAG size of output: 64 [2020-08-22 23:04:35,088 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 239 DAG size of output: 91