/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/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:23:54,912 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:23:54,915 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:23:54,954 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 22:23:54,978 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:23:54,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:23:54,983 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:23:54,985 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:23:54,986 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:23:54,987 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:23:54,989 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:23:54,995 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:23:54,999 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:23:55,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:23:55,001 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:23:55,002 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:23:55,014 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:23:55,031 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:23:55,032 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:23:55,032 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:23:55,034 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 22:23:55,042 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:23:55,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:23:55,044 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:23:55,047 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:23:55,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:23:55,047 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:23:55,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:23:55,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:23:55,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:23:55,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:23:55,048 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:23:55,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:23:55,049 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:23:55,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:23:55,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:23:55,049 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:23:55,049 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:23:55,049 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:23:55,050 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:23:55,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:23:55,050 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:23:55,050 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:23:55,050 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 22:23:55,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:23:55,319 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:23:55,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:23:55,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:23:55,332 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:23:55,333 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 22:23:55,404 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4d75198/b441ab81023b49048eab1ccd503b552c/FLAGbe2c617a0 [2020-08-22 22:23:55,940 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:23:55,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-08-22 22:23:55,961 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4d75198/b441ab81023b49048eab1ccd503b552c/FLAGbe2c617a0 [2020-08-22 22:23:56,145 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9c4d75198/b441ab81023b49048eab1ccd503b552c [2020-08-22 22:23:56,153 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:23:56,155 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:23:56,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:23:56,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:23:56,159 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:23:56,160 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:56,164 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48509bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56, skipping insertion in model container [2020-08-22 22:23:56,164 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:56,172 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:23:56,237 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:23:56,726 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:23:56,731 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:23:56,980 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:23:56,996 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:23:56,996 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56 WrapperNode [2020-08-22 22:23:56,997 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:23:56,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:23:56,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:23:56,998 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:23:57,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,012 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,029 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,030 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,069 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,083 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,089 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (1/1) ... [2020-08-22 22:23:57,107 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:23:57,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:23:57,108 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:23:57,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:23:57,112 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (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 22:23:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:23:57,175 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:23:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 22:23:57,176 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:23:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 22:23:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:23:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:23:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:23:57,176 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:23:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:23:57,177 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:23:58,436 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:23:58,437 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 22:23:58,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:23:58 BoogieIcfgContainer [2020-08-22 22:23:58,451 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:23:58,453 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:23:58,453 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:23:58,457 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:23:58,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:23:56" (1/3) ... [2020-08-22 22:23:58,458 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bafde73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:23:58, skipping insertion in model container [2020-08-22 22:23:58,459 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:23:56" (2/3) ... [2020-08-22 22:23:58,459 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bafde73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:23:58, skipping insertion in model container [2020-08-22 22:23:58,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:23:58" (3/3) ... [2020-08-22 22:23:58,464 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-08-22 22:23:58,476 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:23:58,488 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:23:58,503 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:23:58,527 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:23:58,528 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:23:58,528 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:23:58,528 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:23:58,528 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:23:58,528 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:23:58,529 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:23:58,529 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:23:58,559 INFO L276 IsEmpty]: Start isEmpty. Operand 525 states. [2020-08-22 22:23:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-08-22 22:23:58,602 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:23:58,603 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:23:58,604 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:23:58,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:23:58,610 INFO L82 PathProgramCache]: Analyzing trace with hash -1930932209, now seen corresponding path program 1 times [2020-08-22 22:23:58,619 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:23:58,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1396861372] [2020-08-22 22:23:58,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:23:58,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:23:59,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:23:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:23:59,314 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 22:23:59,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1396861372] [2020-08-22 22:23:59,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:23:59,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:23:59,319 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664818879] [2020-08-22 22:23:59,325 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:23:59,325 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:23:59,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:23:59,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:23:59,342 INFO L87 Difference]: Start difference. First operand 525 states. Second operand 5 states. [2020-08-22 22:24:02,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:02,252 INFO L93 Difference]: Finished difference Result 1360 states and 1895 transitions. [2020-08-22 22:24:02,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:24:02,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 144 [2020-08-22 22:24:02,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:02,276 INFO L225 Difference]: With dead ends: 1360 [2020-08-22 22:24:02,276 INFO L226 Difference]: Without dead ends: 781 [2020-08-22 22:24:02,285 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 22:24:02,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 781 states. [2020-08-22 22:24:02,455 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 781 to 746. [2020-08-22 22:24:02,456 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 746 states. [2020-08-22 22:24:02,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 932 transitions. [2020-08-22 22:24:02,463 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 932 transitions. Word has length 144 [2020-08-22 22:24:02,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:02,465 INFO L479 AbstractCegarLoop]: Abstraction has 746 states and 932 transitions. [2020-08-22 22:24:02,465 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:24:02,465 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 932 transitions. [2020-08-22 22:24:02,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-08-22 22:24:02,472 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:02,473 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:02,473 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:24:02,474 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:02,474 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:02,474 INFO L82 PathProgramCache]: Analyzing trace with hash 1235003416, now seen corresponding path program 1 times [2020-08-22 22:24:02,474 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:02,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501627334] [2020-08-22 22:24:02,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:02,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:02,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:02,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:02,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:02,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:02,881 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 17 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:24:02,882 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501627334] [2020-08-22 22:24:02,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:02,883 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 22:24:02,883 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967802426] [2020-08-22 22:24:02,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:24:02,885 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:02,886 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:24:02,886 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:24:02,886 INFO L87 Difference]: Start difference. First operand 746 states and 932 transitions. Second operand 5 states. [2020-08-22 22:24:04,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:04,756 INFO L93 Difference]: Finished difference Result 1955 states and 2547 transitions. [2020-08-22 22:24:04,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:24:04,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 174 [2020-08-22 22:24:04,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:04,768 INFO L225 Difference]: With dead ends: 1955 [2020-08-22 22:24:04,769 INFO L226 Difference]: Without dead ends: 1233 [2020-08-22 22:24:04,773 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:24:04,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1233 states. [2020-08-22 22:24:04,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1233 to 1034. [2020-08-22 22:24:04,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-08-22 22:24:04,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1301 transitions. [2020-08-22 22:24:04,933 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1301 transitions. Word has length 174 [2020-08-22 22:24:04,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:04,934 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1301 transitions. [2020-08-22 22:24:04,934 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:24:04,934 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1301 transitions. [2020-08-22 22:24:04,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2020-08-22 22:24:04,941 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:04,942 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:24:04,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:24:04,942 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:04,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:04,943 INFO L82 PathProgramCache]: Analyzing trace with hash -1424315467, now seen corresponding path program 1 times [2020-08-22 22:24:04,943 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:04,943 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1164606359] [2020-08-22 22:24:04,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:04,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:05,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:05,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:05,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 22:24:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 70 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:24:05,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1164606359] [2020-08-22 22:24:05,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:05,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:24:05,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245299687] [2020-08-22 22:24:05,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:24:05,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:05,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:24:05,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:24:05,184 INFO L87 Difference]: Start difference. First operand 1034 states and 1301 transitions. Second operand 7 states. [2020-08-22 22:24:07,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:07,409 INFO L93 Difference]: Finished difference Result 2796 states and 3651 transitions. [2020-08-22 22:24:07,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:24:07,410 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 221 [2020-08-22 22:24:07,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:07,431 INFO L225 Difference]: With dead ends: 2796 [2020-08-22 22:24:07,440 INFO L226 Difference]: Without dead ends: 1786 [2020-08-22 22:24:07,449 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:24:07,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1786 states. [2020-08-22 22:24:07,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1786 to 1699. [2020-08-22 22:24:07,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1699 states. [2020-08-22 22:24:07,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1699 states to 1699 states and 2093 transitions. [2020-08-22 22:24:07,680 INFO L78 Accepts]: Start accepts. Automaton has 1699 states and 2093 transitions. Word has length 221 [2020-08-22 22:24:07,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:07,681 INFO L479 AbstractCegarLoop]: Abstraction has 1699 states and 2093 transitions. [2020-08-22 22:24:07,681 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:24:07,681 INFO L276 IsEmpty]: Start isEmpty. Operand 1699 states and 2093 transitions. [2020-08-22 22:24:07,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-08-22 22:24:07,690 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:07,691 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:24:07,691 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:24:07,691 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:07,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:07,692 INFO L82 PathProgramCache]: Analyzing trace with hash 1287774819, now seen corresponding path program 1 times [2020-08-22 22:24:07,692 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:07,692 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993872573] [2020-08-22 22:24:07,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:07,802 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:07,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:07,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:07,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 22:24:07,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:07,968 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:24:07,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993872573] [2020-08-22 22:24:07,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:07,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:24:07,970 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101042296] [2020-08-22 22:24:07,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:24:07,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:07,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:24:07,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:24:07,972 INFO L87 Difference]: Start difference. First operand 1699 states and 2093 transitions. Second operand 7 states. [2020-08-22 22:24:10,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:10,513 INFO L93 Difference]: Finished difference Result 3980 states and 5073 transitions. [2020-08-22 22:24:10,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:24:10,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-08-22 22:24:10,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:10,534 INFO L225 Difference]: With dead ends: 3980 [2020-08-22 22:24:10,534 INFO L226 Difference]: Without dead ends: 2305 [2020-08-22 22:24:10,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:24:10,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2305 states. [2020-08-22 22:24:10,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2305 to 1773. [2020-08-22 22:24:10,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1773 states. [2020-08-22 22:24:10,861 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1773 states to 1773 states and 2136 transitions. [2020-08-22 22:24:10,861 INFO L78 Accepts]: Start accepts. Automaton has 1773 states and 2136 transitions. Word has length 222 [2020-08-22 22:24:10,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:10,862 INFO L479 AbstractCegarLoop]: Abstraction has 1773 states and 2136 transitions. [2020-08-22 22:24:10,862 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:24:10,862 INFO L276 IsEmpty]: Start isEmpty. Operand 1773 states and 2136 transitions. [2020-08-22 22:24:10,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 229 [2020-08-22 22:24:10,871 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:10,871 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:10,872 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:24:10,872 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:10,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:10,872 INFO L82 PathProgramCache]: Analyzing trace with hash 655222966, now seen corresponding path program 1 times [2020-08-22 22:24:10,873 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:10,873 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [418966981] [2020-08-22 22:24:10,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:11,034 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:11,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:11,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:11,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:11,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-22 22:24:11,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:11,181 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 63 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-08-22 22:24:11,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [418966981] [2020-08-22 22:24:11,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:11,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-08-22 22:24:11,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032703058] [2020-08-22 22:24:11,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-08-22 22:24:11,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:11,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-08-22 22:24:11,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:24:11,184 INFO L87 Difference]: Start difference. First operand 1773 states and 2136 transitions. Second operand 6 states. [2020-08-22 22:24:13,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:13,649 INFO L93 Difference]: Finished difference Result 3389 states and 4163 transitions. [2020-08-22 22:24:13,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 22:24:13,650 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 228 [2020-08-22 22:24:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:13,672 INFO L225 Difference]: With dead ends: 3389 [2020-08-22 22:24:13,672 INFO L226 Difference]: Without dead ends: 3387 [2020-08-22 22:24:13,675 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:13,679 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3387 states. [2020-08-22 22:24:13,990 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3387 to 2422. [2020-08-22 22:24:13,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2422 states. [2020-08-22 22:24:13,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2422 states to 2422 states and 2937 transitions. [2020-08-22 22:24:13,997 INFO L78 Accepts]: Start accepts. Automaton has 2422 states and 2937 transitions. Word has length 228 [2020-08-22 22:24:13,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:13,997 INFO L479 AbstractCegarLoop]: Abstraction has 2422 states and 2937 transitions. [2020-08-22 22:24:13,997 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-08-22 22:24:13,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2422 states and 2937 transitions. [2020-08-22 22:24:14,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-08-22 22:24:14,009 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:14,009 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:14,009 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:24:14,010 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:14,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:14,010 INFO L82 PathProgramCache]: Analyzing trace with hash 1328956802, now seen corresponding path program 1 times [2020-08-22 22:24:14,010 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:14,011 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1488098410] [2020-08-22 22:24:14,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:14,111 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:14,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:14,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:14,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:14,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2020-08-22 22:24:14,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:14,261 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 80 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-08-22 22:24:14,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1488098410] [2020-08-22 22:24:14,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:14,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:14,263 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37959383] [2020-08-22 22:24:14,264 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:14,269 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:14,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:14,270 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:14,270 INFO L87 Difference]: Start difference. First operand 2422 states and 2937 transitions. Second operand 8 states. [2020-08-22 22:24:17,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:17,491 INFO L93 Difference]: Finished difference Result 6681 states and 8311 transitions. [2020-08-22 22:24:17,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:24:17,497 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2020-08-22 22:24:17,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:17,525 INFO L225 Difference]: With dead ends: 6681 [2020-08-22 22:24:17,526 INFO L226 Difference]: Without dead ends: 4283 [2020-08-22 22:24:17,537 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-08-22 22:24:17,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4283 states. [2020-08-22 22:24:18,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4283 to 3661. [2020-08-22 22:24:18,048 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3661 states. [2020-08-22 22:24:18,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3661 states to 3661 states and 4433 transitions. [2020-08-22 22:24:18,056 INFO L78 Accepts]: Start accepts. Automaton has 3661 states and 4433 transitions. Word has length 229 [2020-08-22 22:24:18,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:18,057 INFO L479 AbstractCegarLoop]: Abstraction has 3661 states and 4433 transitions. [2020-08-22 22:24:18,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:18,057 INFO L276 IsEmpty]: Start isEmpty. Operand 3661 states and 4433 transitions. [2020-08-22 22:24:18,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-08-22 22:24:18,070 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:18,071 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, 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] [2020-08-22 22:24:18,071 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:24:18,071 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:18,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:18,072 INFO L82 PathProgramCache]: Analyzing trace with hash 582092877, now seen corresponding path program 1 times [2020-08-22 22:24:18,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:18,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [999051021] [2020-08-22 22:24:18,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:18,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:18,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:18,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:18,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 73 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:24:18,338 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [999051021] [2020-08-22 22:24:18,338 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:18,338 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 22:24:18,338 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592450466] [2020-08-22 22:24:18,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:24:18,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:18,339 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:24:18,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:24:18,341 INFO L87 Difference]: Start difference. First operand 3661 states and 4433 transitions. Second operand 5 states. [2020-08-22 22:24:20,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:20,530 INFO L93 Difference]: Finished difference Result 8340 states and 10259 transitions. [2020-08-22 22:24:20,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:24:20,534 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 230 [2020-08-22 22:24:20,534 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:20,564 INFO L225 Difference]: With dead ends: 8340 [2020-08-22 22:24:20,564 INFO L226 Difference]: Without dead ends: 4703 [2020-08-22 22:24:20,581 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:24:20,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4703 states. [2020-08-22 22:24:21,372 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4703 to 4512. [2020-08-22 22:24:21,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4512 states. [2020-08-22 22:24:21,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4512 states to 4512 states and 5414 transitions. [2020-08-22 22:24:21,383 INFO L78 Accepts]: Start accepts. Automaton has 4512 states and 5414 transitions. Word has length 230 [2020-08-22 22:24:21,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:21,384 INFO L479 AbstractCegarLoop]: Abstraction has 4512 states and 5414 transitions. [2020-08-22 22:24:21,384 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:24:21,384 INFO L276 IsEmpty]: Start isEmpty. Operand 4512 states and 5414 transitions. [2020-08-22 22:24:21,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-08-22 22:24:21,400 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:21,400 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:21,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 22:24:21,400 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:21,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:21,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1876998313, now seen corresponding path program 1 times [2020-08-22 22:24:21,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:21,401 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1954547459] [2020-08-22 22:24:21,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:21,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,507 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:21,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-08-22 22:24:21,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2020-08-22 22:24:21,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-08-22 22:24:21,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:21,710 INFO L134 CoverageAnalysis]: Checked inductivity of 232 backedges. 138 proven. 26 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-08-22 22:24:21,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1954547459] [2020-08-22 22:24:21,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:21,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:21,711 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064857454] [2020-08-22 22:24:21,712 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:21,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:21,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:21,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:21,713 INFO L87 Difference]: Start difference. First operand 4512 states and 5414 transitions. Second operand 8 states. [2020-08-22 22:24:25,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:25,613 INFO L93 Difference]: Finished difference Result 10700 states and 12936 transitions. [2020-08-22 22:24:25,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-08-22 22:24:25,614 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 288 [2020-08-22 22:24:25,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:25,648 INFO L225 Difference]: With dead ends: 10700 [2020-08-22 22:24:25,649 INFO L226 Difference]: Without dead ends: 5634 [2020-08-22 22:24:25,667 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 22:24:25,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5634 states. [2020-08-22 22:24:26,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5634 to 5628. [2020-08-22 22:24:26,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5628 states. [2020-08-22 22:24:26,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5628 states to 5628 states and 6421 transitions. [2020-08-22 22:24:26,621 INFO L78 Accepts]: Start accepts. Automaton has 5628 states and 6421 transitions. Word has length 288 [2020-08-22 22:24:26,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:26,622 INFO L479 AbstractCegarLoop]: Abstraction has 5628 states and 6421 transitions. [2020-08-22 22:24:26,622 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:26,622 INFO L276 IsEmpty]: Start isEmpty. Operand 5628 states and 6421 transitions. [2020-08-22 22:24:26,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2020-08-22 22:24:26,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:26,639 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:26,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 22:24:26,640 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:26,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:26,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1023260744, now seen corresponding path program 1 times [2020-08-22 22:24:26,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:26,641 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1882811212] [2020-08-22 22:24:26,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:26,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:26,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 22:24:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,791 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-08-22 22:24:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,819 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 22:24:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 22:24:26,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:26,969 INFO L134 CoverageAnalysis]: Checked inductivity of 325 backedges. 202 proven. 32 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2020-08-22 22:24:26,970 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1882811212] [2020-08-22 22:24:26,970 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:26,970 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:26,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130004241] [2020-08-22 22:24:26,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:26,977 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:26,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:26,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:26,978 INFO L87 Difference]: Start difference. First operand 5628 states and 6421 transitions. Second operand 8 states. [2020-08-22 22:24:29,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:29,985 INFO L93 Difference]: Finished difference Result 10624 states and 12115 transitions. [2020-08-22 22:24:29,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 22:24:29,986 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 313 [2020-08-22 22:24:29,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:30,021 INFO L225 Difference]: With dead ends: 10624 [2020-08-22 22:24:30,021 INFO L226 Difference]: Without dead ends: 6260 [2020-08-22 22:24:30,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:24:30,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6260 states. [2020-08-22 22:24:30,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6260 to 4804. [2020-08-22 22:24:30,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4804 states. [2020-08-22 22:24:30,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4804 states to 4804 states and 5393 transitions. [2020-08-22 22:24:30,724 INFO L78 Accepts]: Start accepts. Automaton has 4804 states and 5393 transitions. Word has length 313 [2020-08-22 22:24:30,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:30,724 INFO L479 AbstractCegarLoop]: Abstraction has 4804 states and 5393 transitions. [2020-08-22 22:24:30,724 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:30,725 INFO L276 IsEmpty]: Start isEmpty. Operand 4804 states and 5393 transitions. [2020-08-22 22:24:30,738 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-22 22:24:30,739 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:30,739 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:30,739 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 22:24:30,740 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:30,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:30,740 INFO L82 PathProgramCache]: Analyzing trace with hash 147431633, now seen corresponding path program 1 times [2020-08-22 22:24:30,740 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:30,740 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712813873] [2020-08-22 22:24:30,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:30,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:30,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:30,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2020-08-22 22:24:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-08-22 22:24:30,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-08-22 22:24:30,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:30,934 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-08-22 22:24:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:31,013 INFO L134 CoverageAnalysis]: Checked inductivity of 363 backedges. 176 proven. 70 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-08-22 22:24:31,014 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712813873] [2020-08-22 22:24:31,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:31,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:31,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794744541] [2020-08-22 22:24:31,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:31,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:31,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:31,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:31,015 INFO L87 Difference]: Start difference. First operand 4804 states and 5393 transitions. Second operand 8 states. [2020-08-22 22:24:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:34,107 INFO L93 Difference]: Finished difference Result 9875 states and 11090 transitions. [2020-08-22 22:24:34,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 22:24:34,108 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 327 [2020-08-22 22:24:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:34,126 INFO L225 Difference]: With dead ends: 9875 [2020-08-22 22:24:34,126 INFO L226 Difference]: Without dead ends: 5236 [2020-08-22 22:24:34,138 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:24:34,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5236 states. [2020-08-22 22:24:35,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5236 to 5126. [2020-08-22 22:24:35,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5126 states. [2020-08-22 22:24:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5126 states to 5126 states and 5722 transitions. [2020-08-22 22:24:35,354 INFO L78 Accepts]: Start accepts. Automaton has 5126 states and 5722 transitions. Word has length 327 [2020-08-22 22:24:35,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:35,354 INFO L479 AbstractCegarLoop]: Abstraction has 5126 states and 5722 transitions. [2020-08-22 22:24:35,355 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 5126 states and 5722 transitions. [2020-08-22 22:24:35,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2020-08-22 22:24:35,364 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:35,364 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:35,364 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 22:24:35,364 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:35,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:35,365 INFO L82 PathProgramCache]: Analyzing trace with hash 1671769717, now seen corresponding path program 1 times [2020-08-22 22:24:35,365 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:35,365 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2040821795] [2020-08-22 22:24:35,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:35,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:35,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:35,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-22 22:24:35,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-22 22:24:35,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,671 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 22:24:35,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:35,736 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2020-08-22 22:24:35,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:36,023 INFO L134 CoverageAnalysis]: Checked inductivity of 482 backedges. 344 proven. 22 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-08-22 22:24:36,023 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2040821795] [2020-08-22 22:24:36,023 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:36,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-08-22 22:24:36,024 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161160478] [2020-08-22 22:24:36,024 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 22:24:36,024 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:36,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 22:24:36,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-08-22 22:24:36,025 INFO L87 Difference]: Start difference. First operand 5126 states and 5722 transitions. Second operand 17 states. [2020-08-22 22:24:36,664 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 79 [2020-08-22 22:24:36,925 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 78 [2020-08-22 22:24:38,736 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 72 [2020-08-22 22:24:38,949 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 75 [2020-08-22 22:24:39,731 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-22 22:24:40,082 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-08-22 22:24:40,551 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-08-22 22:24:40,864 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-08-22 22:24:42,469 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 76 [2020-08-22 22:24:43,195 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 75 [2020-08-22 22:24:43,739 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-08-22 22:24:45,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:45,070 INFO L93 Difference]: Finished difference Result 9293 states and 10426 transitions. [2020-08-22 22:24:45,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2020-08-22 22:24:45,071 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 360 [2020-08-22 22:24:45,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:45,087 INFO L225 Difference]: With dead ends: 9293 [2020-08-22 22:24:45,087 INFO L226 Difference]: Without dead ends: 4184 [2020-08-22 22:24:45,100 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1247 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=983, Invalid=3049, Unknown=0, NotChecked=0, Total=4032 [2020-08-22 22:24:45,105 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4184 states. [2020-08-22 22:24:45,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4184 to 3572. [2020-08-22 22:24:45,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3572 states. [2020-08-22 22:24:45,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3572 states to 3572 states and 3888 transitions. [2020-08-22 22:24:45,815 INFO L78 Accepts]: Start accepts. Automaton has 3572 states and 3888 transitions. Word has length 360 [2020-08-22 22:24:45,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:45,815 INFO L479 AbstractCegarLoop]: Abstraction has 3572 states and 3888 transitions. [2020-08-22 22:24:45,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 22:24:45,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3572 states and 3888 transitions. [2020-08-22 22:24:45,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 381 [2020-08-22 22:24:45,822 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:45,822 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:45,823 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 22:24:45,823 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:45,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:45,823 INFO L82 PathProgramCache]: Analyzing trace with hash 1022547058, now seen corresponding path program 1 times [2020-08-22 22:24:45,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:45,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [411336090] [2020-08-22 22:24:45,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:45,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:45,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:45,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:45,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:45,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:45,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-22 22:24:45,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:46,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-08-22 22:24:46,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:46,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 22:24:46,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:46,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 209 [2020-08-22 22:24:46,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:46,234 INFO L134 CoverageAnalysis]: Checked inductivity of 534 backedges. 276 proven. 32 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2020-08-22 22:24:46,234 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [411336090] [2020-08-22 22:24:46,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:46,235 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:46,235 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430889513] [2020-08-22 22:24:46,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:46,236 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:46,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:46,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:46,236 INFO L87 Difference]: Start difference. First operand 3572 states and 3888 transitions. Second operand 8 states. [2020-08-22 22:24:48,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:48,889 INFO L93 Difference]: Finished difference Result 7144 states and 7791 transitions. [2020-08-22 22:24:48,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-08-22 22:24:48,890 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 380 [2020-08-22 22:24:48,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:48,903 INFO L225 Difference]: With dead ends: 7144 [2020-08-22 22:24:48,903 INFO L226 Difference]: Without dead ends: 3588 [2020-08-22 22:24:48,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:24:48,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3588 states. [2020-08-22 22:24:49,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3588 to 3576. [2020-08-22 22:24:49,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3576 states. [2020-08-22 22:24:49,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3576 states to 3576 states and 3893 transitions. [2020-08-22 22:24:49,647 INFO L78 Accepts]: Start accepts. Automaton has 3576 states and 3893 transitions. Word has length 380 [2020-08-22 22:24:49,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:49,647 INFO L479 AbstractCegarLoop]: Abstraction has 3576 states and 3893 transitions. [2020-08-22 22:24:49,647 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:49,647 INFO L276 IsEmpty]: Start isEmpty. Operand 3576 states and 3893 transitions. [2020-08-22 22:24:49,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 399 [2020-08-22 22:24:49,655 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:49,656 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:24:49,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 22:24:49,656 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:49,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:49,656 INFO L82 PathProgramCache]: Analyzing trace with hash -1361516454, now seen corresponding path program 1 times [2020-08-22 22:24:49,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:49,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1090724904] [2020-08-22 22:24:49,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:49,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:49,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:49,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2020-08-22 22:24:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 22:24:49,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-08-22 22:24:49,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 22:24:49,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:49,999 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 280 proven. 102 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2020-08-22 22:24:50,002 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1090724904] [2020-08-22 22:24:50,002 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:50,002 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:24:50,003 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [435451699] [2020-08-22 22:24:50,003 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:24:50,004 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:50,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:24:50,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:24:50,007 INFO L87 Difference]: Start difference. First operand 3576 states and 3893 transitions. Second operand 7 states. [2020-08-22 22:24:52,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:52,168 INFO L93 Difference]: Finished difference Result 7075 states and 7697 transitions. [2020-08-22 22:24:52,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:24:52,169 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 398 [2020-08-22 22:24:52,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:52,182 INFO L225 Difference]: With dead ends: 7075 [2020-08-22 22:24:52,182 INFO L226 Difference]: Without dead ends: 3664 [2020-08-22 22:24:52,190 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 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 22:24:52,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3664 states. [2020-08-22 22:24:52,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3664 to 3628. [2020-08-22 22:24:52,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3628 states. [2020-08-22 22:24:52,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3628 states to 3628 states and 3898 transitions. [2020-08-22 22:24:52,826 INFO L78 Accepts]: Start accepts. Automaton has 3628 states and 3898 transitions. Word has length 398 [2020-08-22 22:24:52,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:52,826 INFO L479 AbstractCegarLoop]: Abstraction has 3628 states and 3898 transitions. [2020-08-22 22:24:52,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:24:52,826 INFO L276 IsEmpty]: Start isEmpty. Operand 3628 states and 3898 transitions. [2020-08-22 22:24:52,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 421 [2020-08-22 22:24:52,834 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:52,834 INFO L422 BasicCegarLoop]: trace histogram [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, 4, 4, 4, 4, 3, 3, 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, 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 22:24:52,834 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 22:24:52,834 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:52,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:52,835 INFO L82 PathProgramCache]: Analyzing trace with hash 145420448, now seen corresponding path program 1 times [2020-08-22 22:24:52,835 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:52,835 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [685963017] [2020-08-22 22:24:52,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:52,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:52,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:52,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:52,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:53,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 22:24:53,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:53,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 22:24:53,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:53,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-08-22 22:24:53,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:53,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 22:24:53,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:53,235 INFO L134 CoverageAnalysis]: Checked inductivity of 632 backedges. 316 proven. 32 refuted. 0 times theorem prover too weak. 284 trivial. 0 not checked. [2020-08-22 22:24:53,235 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [685963017] [2020-08-22 22:24:53,235 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:53,236 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-08-22 22:24:53,236 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115558999] [2020-08-22 22:24:53,236 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:24:53,237 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:53,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:24:53,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:24:53,237 INFO L87 Difference]: Start difference. First operand 3628 states and 3898 transitions. Second operand 8 states. [2020-08-22 22:24:55,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:55,644 INFO L93 Difference]: Finished difference Result 7279 states and 7841 transitions. [2020-08-22 22:24:55,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:24:55,645 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 420 [2020-08-22 22:24:55,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:55,657 INFO L225 Difference]: With dead ends: 7279 [2020-08-22 22:24:55,657 INFO L226 Difference]: Without dead ends: 3816 [2020-08-22 22:24:55,664 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:24:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3816 states. [2020-08-22 22:24:56,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3816 to 3779. [2020-08-22 22:24:56,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3779 states. [2020-08-22 22:24:56,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3779 states to 3779 states and 4066 transitions. [2020-08-22 22:24:56,299 INFO L78 Accepts]: Start accepts. Automaton has 3779 states and 4066 transitions. Word has length 420 [2020-08-22 22:24:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:56,299 INFO L479 AbstractCegarLoop]: Abstraction has 3779 states and 4066 transitions. [2020-08-22 22:24:56,299 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:24:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 3779 states and 4066 transitions. [2020-08-22 22:24:56,306 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 442 [2020-08-22 22:24:56,306 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:24:56,307 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 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, 1, 1, 1, 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 22:24:56,307 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 22:24:56,307 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:24:56,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:24:56,307 INFO L82 PathProgramCache]: Analyzing trace with hash -827208098, now seen corresponding path program 1 times [2020-08-22 22:24:56,308 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:24:56,308 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [501652072] [2020-08-22 22:24:56,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:24:56,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:24:56,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2020-08-22 22:24:56,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,528 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2020-08-22 22:24:56,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 22:24:56,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-08-22 22:24:56,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,552 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2020-08-22 22:24:56,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 270 [2020-08-22 22:24:56,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:24:56,763 INFO L134 CoverageAnalysis]: Checked inductivity of 741 backedges. 254 proven. 48 refuted. 0 times theorem prover too weak. 439 trivial. 0 not checked. [2020-08-22 22:24:56,763 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [501652072] [2020-08-22 22:24:56,763 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:24:56,764 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:24:56,764 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084177312] [2020-08-22 22:24:56,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:24:56,765 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:24:56,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:24:56,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:24:56,765 INFO L87 Difference]: Start difference. First operand 3779 states and 4066 transitions. Second operand 7 states. [2020-08-22 22:24:59,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:24:59,171 INFO L93 Difference]: Finished difference Result 7446 states and 8015 transitions. [2020-08-22 22:24:59,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-08-22 22:24:59,172 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 441 [2020-08-22 22:24:59,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:24:59,176 INFO L225 Difference]: With dead ends: 7446 [2020-08-22 22:24:59,176 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:24:59,184 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:24:59,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:24:59,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:24:59,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:24:59,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:24:59,185 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 441 [2020-08-22 22:24:59,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:24:59,185 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:24:59,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:24:59,185 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:24:59,185 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:24:59,186 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 22:24:59,188 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:25:06,541 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:25:49,235 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:25:49,505 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:25:49,937 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:04,048 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:04,150 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:04,252 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:04,417 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:20,788 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 257 DAG size of output: 181 [2020-08-22 22:26:42,845 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:26:43,725 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:26:44,502 WARN L193 SmtUtils]: Spent 770.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:26:45,400 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:26:47,452 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:26:48,345 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:26:50,357 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:26:52,390 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:26:53,255 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:26:54,115 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:26:54,984 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:26:55,611 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 75 [2020-08-22 22:26:56,639 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 153 DAG size of output: 81 [2020-08-22 22:26:58,694 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:26:59,736 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 145 DAG size of output: 80 [2020-08-22 22:27:00,602 WARN L193 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 75 [2020-08-22 22:27:01,516 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 86 [2020-08-22 22:27:02,200 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-08-22 22:27:03,303 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 85 [2020-08-22 22:27:03,966 WARN L193 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2020-08-22 22:27:06,028 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:06,999 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 80 [2020-08-22 22:27:07,655 WARN L193 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 77 [2020-08-22 22:27:09,723 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:11,796 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:12,748 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 79 [2020-08-22 22:27:13,389 WARN L193 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-08-22 22:27:14,014 WARN L193 SmtUtils]: Spent 622.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:27:14,913 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:27:16,967 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:27:17,640 WARN L193 SmtUtils]: Spent 665.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:27:18,629 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 80 [2020-08-22 22:27:19,518 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 86 [2020-08-22 22:27:20,397 WARN L193 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 79 [2020-08-22 22:27:21,288 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:27:22,083 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 80 [2020-08-22 22:27:22,925 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 76 [2020-08-22 22:27:24,983 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:25,740 WARN L193 SmtUtils]: Spent 750.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 81 [2020-08-22 22:27:26,417 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:27:27,100 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-08-22 22:27:28,654 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 209 DAG size of output: 89 [2020-08-22 22:27:29,800 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 180 DAG size of output: 79 [2020-08-22 22:27:30,819 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 144 DAG size of output: 78 [2020-08-22 22:27:31,628 WARN L193 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 82 [2020-08-22 22:27:32,447 WARN L193 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 86 [2020-08-22 22:27:33,433 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 81 [2020-08-22 22:27:34,235 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 80 [2020-08-22 22:27:36,302 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:27:37,109 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 81 [2020-08-22 22:27:39,247 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:27:40,528 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 207 DAG size of output: 88 [2020-08-22 22:27:41,235 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 80 [2020-08-22 22:27:41,901 WARN L193 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 77 [2020-08-22 22:27:42,769 WARN L193 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 74 [2020-08-22 22:27:43,669 WARN L193 SmtUtils]: Spent 893.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-08-22 22:27:44,470 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 77 [2020-08-22 22:27:45,437 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:27:46,102 WARN L193 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 77 [2020-08-22 22:27:47,057 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 81 [2020-08-22 22:27:47,968 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:27:50,081 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:52,192 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:52,850 WARN L193 SmtUtils]: Spent 651.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 75 [2020-08-22 22:27:53,539 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 78 [2020-08-22 22:27:55,642 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:27:56,549 WARN L193 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:27:57,352 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:27:58,274 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:28:00,372 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:00,999 WARN L193 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2020-08-22 22:28:03,193 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:05,347 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:06,356 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 152 DAG size of output: 79 [2020-08-22 22:28:07,033 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 75 [2020-08-22 22:28:09,188 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:10,368 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 169 DAG size of output: 81 [2020-08-22 22:28:11,091 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 80 [2020-08-22 22:28:11,975 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 75 [2020-08-22 22:28:14,101 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:14,993 WARN L193 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 77 [2020-08-22 22:28:16,097 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:28:16,783 WARN L193 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 77 [2020-08-22 22:28:17,730 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 86 [2020-08-22 22:28:19,014 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 191 DAG size of output: 86 [2020-08-22 22:28:20,125 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 160 DAG size of output: 83 [2020-08-22 22:28:21,112 WARN L193 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 79 [2020-08-22 22:28:22,039 WARN L193 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 78 [2020-08-22 22:28:24,181 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:25,159 WARN L193 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:28:25,829 WARN L193 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2020-08-22 22:28:26,911 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 194 DAG size of output: 89 [2020-08-22 22:28:28,067 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 153 DAG size of output: 84 [2020-08-22 22:28:29,007 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:28:31,195 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:33,420 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:35,690 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:37,926 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:38,917 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:28:39,878 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:28:40,724 WARN L193 SmtUtils]: Spent 839.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:28:42,944 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:44,015 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:28:44,768 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:28:45,596 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 82 [2020-08-22 22:28:47,801 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:48,491 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2020-08-22 22:28:49,504 WARN L193 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 81 [2020-08-22 22:28:50,742 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 159 DAG size of output: 81 [2020-08-22 22:28:51,789 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 152 DAG size of output: 80 [2020-08-22 22:28:52,709 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 75 [2020-08-22 22:28:53,954 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 174 DAG size of output: 85 [2020-08-22 22:28:56,194 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:28:58,427 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:00,638 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:01,591 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 78 [2020-08-22 22:29:02,915 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 189 DAG size of output: 88 [2020-08-22 22:29:04,062 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:29:05,043 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:29:07,264 WARN L193 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:08,206 WARN L193 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:29:09,184 WARN L193 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 88 [2020-08-22 22:29:10,436 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 181 DAG size of output: 85 [2020-08-22 22:29:11,409 WARN L193 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 78 [2020-08-22 22:29:12,261 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 81 [2020-08-22 22:29:13,254 WARN L193 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 76 [2020-08-22 22:29:15,514 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:16,659 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 206 DAG size of output: 87 [2020-08-22 22:29:17,433 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 79 [2020-08-22 22:29:19,722 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:20,463 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:29:21,657 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 154 DAG size of output: 81 [2020-08-22 22:29:23,925 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:25,300 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 191 DAG size of output: 86 [2020-08-22 22:29:26,074 WARN L193 SmtUtils]: Spent 768.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:29:28,354 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:29,328 WARN L193 SmtUtils]: Spent 967.00 ms on a formula simplification. DAG size of input: 144 DAG size of output: 76 [2020-08-22 22:29:30,095 WARN L193 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 79 [2020-08-22 22:29:31,236 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 194 DAG size of output: 89 [2020-08-22 22:29:33,493 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:29:35,070 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 156 DAG size of output: 82 [2020-08-22 22:29:36,073 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 86 [2020-08-22 22:29:37,081 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 146 DAG size of output: 78 [2020-08-22 22:29:39,352 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:29:40,468 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:29:42,731 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:29:43,775 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:29:46,049 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:47,036 WARN L193 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:29:48,019 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:29:48,933 WARN L193 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2020-08-22 22:29:51,215 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:51,978 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:29:54,253 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:56,532 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:29:57,588 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:29:58,335 WARN L193 SmtUtils]: Spent 741.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-08-22 22:30:00,604 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:01,466 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:30:02,516 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:30:04,852 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:05,827 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:30:08,120 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:10,371 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:11,389 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:30:13,668 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:15,933 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:18,170 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:19,181 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:30:20,164 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:30:22,428 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:23,196 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:30:24,185 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification. DAG size of input: 145 DAG size of output: 76 [2020-08-22 22:30:25,531 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 189 DAG size of output: 88 [2020-08-22 22:30:26,580 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-08-22 22:30:29,131 WARN L193 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:29,954 WARN L193 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-08-22 22:30:31,127 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 178 DAG size of output: 81 [2020-08-22 22:30:33,735 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:36,189 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:36,951 WARN L193 SmtUtils]: Spent 755.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-08-22 22:30:38,083 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:30:38,971 WARN L193 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:30:40,001 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:30:42,315 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:43,028 WARN L193 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:30:43,745 WARN L193 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 63 [2020-08-22 22:30:46,080 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:30:46,853 WARN L193 SmtUtils]: Spent 767.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 78 [2020-08-22 22:30:49,127 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:30:50,263 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 182 DAG size of output: 80 [2020-08-22 22:30:51,422 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 144 DAG size of output: 78 [2020-08-22 22:30:52,419 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 83 [2020-08-22 22:30:53,332 WARN L193 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 84 [2020-08-22 22:30:54,168 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-08-22 22:30:54,926 WARN L193 SmtUtils]: Spent 751.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-08-22 22:30:56,140 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 154 DAG size of output: 81 [2020-08-22 22:30:56,916 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:30:57,928 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 147 DAG size of output: 78 [2020-08-22 22:31:00,288 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:01,728 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 196 DAG size of output: 86 [2020-08-22 22:31:02,819 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 178 DAG size of output: 80 [2020-08-22 22:31:03,945 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 182 DAG size of output: 80 [2020-08-22 22:31:04,737 WARN L193 SmtUtils]: Spent 786.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:31:06,139 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 165 DAG size of output: 87 [2020-08-22 22:31:07,104 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 87 [2020-08-22 22:31:09,438 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:31:10,473 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 179 DAG size of output: 77 [2020-08-22 22:31:11,541 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 144 DAG size of output: 76 [2020-08-22 22:31:12,702 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:31:13,729 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 147 DAG size of output: 76 [2020-08-22 22:31:14,951 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 178 DAG size of output: 80 [2020-08-22 22:31:15,802 WARN L193 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 78 [2020-08-22 22:31:16,846 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 187 DAG size of output: 81 [2020-08-22 22:31:19,399 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:20,321 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 82 [2020-08-22 22:31:21,163 WARN L193 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 80 [2020-08-22 22:31:22,012 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:31:23,024 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 156 DAG size of output: 83 [2020-08-22 22:31:25,720 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:26,782 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2020-08-22 22:31:28,049 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 144 DAG size of output: 78 [2020-08-22 22:31:29,424 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 154 DAG size of output: 81 [2020-08-22 22:31:30,524 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 147 DAG size of output: 78 [2020-08-22 22:31:32,991 WARN L193 SmtUtils]: Spent 2.46 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:33,753 WARN L193 SmtUtils]: Spent 756.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-08-22 22:31:34,504 WARN L193 SmtUtils]: Spent 748.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:31:35,580 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 165 DAG size of output: 86 [2020-08-22 22:31:36,632 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 146 DAG size of output: 78 [2020-08-22 22:31:37,346 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:31:38,313 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 88 [2020-08-22 22:31:40,793 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:31:41,549 WARN L193 SmtUtils]: Spent 754.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:31:42,630 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:31:43,696 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:31:46,145 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:47,224 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:31:49,677 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:52,090 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:31:52,998 WARN L193 SmtUtils]: Spent 901.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:31:54,024 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:31:55,154 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 189 DAG size of output: 86 [2020-08-22 22:31:56,231 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 147 DAG size of output: 78 [2020-08-22 22:31:57,363 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 151 DAG size of output: 80 [2020-08-22 22:31:58,488 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-08-22 22:32:01,270 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:02,443 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 150 DAG size of output: 79 [2020-08-22 22:32:03,554 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 162 DAG size of output: 86 [2020-08-22 22:32:04,507 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:32:05,368 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-08-22 22:32:08,092 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:08,931 WARN L193 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-08-22 22:32:10,216 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 194 DAG size of output: 89 [2020-08-22 22:32:11,475 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 151 DAG size of output: 82 [2020-08-22 22:32:14,074 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:15,240 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:32:16,348 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:32:17,607 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 206 DAG size of output: 86 [2020-08-22 22:32:19,286 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 181 DAG size of output: 82 [2020-08-22 22:32:20,173 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 76 [2020-08-22 22:32:21,199 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 185 DAG size of output: 80 [2020-08-22 22:32:22,169 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-08-22 22:32:23,083 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 81 [2020-08-22 22:32:24,167 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 151 DAG size of output: 78 [2020-08-22 22:32:25,298 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:32:27,815 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:29,114 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 156 DAG size of output: 86 [2020-08-22 22:32:30,044 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:32:32,531 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:33,618 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:32:34,564 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 83 [2020-08-22 22:32:35,563 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:32:36,628 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 147 DAG size of output: 78 [2020-08-22 22:32:39,232 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:40,207 WARN L193 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 79 [2020-08-22 22:32:41,757 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 170 DAG size of output: 83 [2020-08-22 22:32:43,613 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 210 DAG size of output: 87 [2020-08-22 22:32:44,966 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-08-22 22:32:46,483 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 166 DAG size of output: 84 [2020-08-22 22:32:47,953 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 158 DAG size of output: 82 [2020-08-22 22:32:48,876 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:32:50,181 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 151 DAG size of output: 82 [2020-08-22 22:32:51,229 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 189 DAG size of output: 84 [2020-08-22 22:32:52,730 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 163 DAG size of output: 80 [2020-08-22 22:32:53,612 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:32:55,095 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 168 DAG size of output: 85 [2020-08-22 22:32:57,762 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:32:58,943 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 151 DAG size of output: 78 [2020-08-22 22:33:01,641 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:02,800 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:33:04,076 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-08-22 22:33:05,786 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 189 DAG size of output: 89 [2020-08-22 22:33:06,769 WARN L193 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 74 [2020-08-22 22:33:07,969 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 146 DAG size of output: 78 [2020-08-22 22:33:09,057 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 146 DAG size of output: 77 [2020-08-22 22:33:09,985 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-08-22 22:33:11,222 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-08-22 22:33:12,105 WARN L193 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:33:14,767 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:15,849 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 145 DAG size of output: 77 [2020-08-22 22:33:16,666 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 77 [2020-08-22 22:33:17,993 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:33:18,903 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 81 [2020-08-22 22:33:21,501 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:22,391 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:33:23,482 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:33:24,524 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 152 DAG size of output: 83 [2020-08-22 22:33:27,229 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:28,646 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 169 DAG size of output: 84 [2020-08-22 22:33:28,758 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 40 [2020-08-22 22:33:29,810 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 146 DAG size of output: 78 [2020-08-22 22:33:30,690 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-08-22 22:33:31,884 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 151 DAG size of output: 77 [2020-08-22 22:33:33,348 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 179 DAG size of output: 87 [2020-08-22 22:33:34,556 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 152 DAG size of output: 79 [2020-08-22 22:33:35,910 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 164 DAG size of output: 82 [2020-08-22 22:33:37,341 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 168 DAG size of output: 84 [2020-08-22 22:33:39,841 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:41,156 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 160 DAG size of output: 83 [2020-08-22 22:33:42,169 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 165 DAG size of output: 85 [2020-08-22 22:33:43,490 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 151 DAG size of output: 82 [2020-08-22 22:33:44,332 WARN L193 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 78 [2020-08-22 22:33:45,189 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-08-22 22:33:46,676 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 193 DAG size of output: 83 [2020-08-22 22:33:47,949 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 150 DAG size of output: 81 [2020-08-22 22:33:48,769 WARN L193 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:33:49,559 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:33:50,333 WARN L193 SmtUtils]: Spent 771.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:33:51,117 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:33:52,241 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:33:53,164 WARN L193 SmtUtils]: Spent 917.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:33:55,689 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:33:56,663 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:33:59,242 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:01,747 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:04,303 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:05,238 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:34:06,176 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:34:07,280 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:34:09,794 WARN L193 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:10,943 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:34:12,091 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:34:14,617 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:15,673 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 147 DAG size of output: 77 [2020-08-22 22:34:16,559 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 75 [2020-08-22 22:34:17,405 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:34:19,861 WARN L193 SmtUtils]: Spent 2.45 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:20,925 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:34:21,845 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 80 [2020-08-22 22:34:24,263 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:25,336 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:34:27,732 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:30,126 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:32,514 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:34:33,541 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 167 DAG size of output: 83 [2020-08-22 22:34:44,801 WARN L193 SmtUtils]: Spent 11.22 s on a formula simplification. DAG size of input: 364 DAG size of output: 189 [2020-08-22 22:34:55,984 WARN L193 SmtUtils]: Spent 11.13 s on a formula simplification. DAG size of input: 364 DAG size of output: 189 [2020-08-22 22:34:56,843 WARN L193 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-08-22 22:34:57,921 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 147 DAG size of output: 78 [2020-08-22 22:35:00,345 WARN L193 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:02,821 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:03,715 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 73 [2020-08-22 22:35:04,583 WARN L193 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 79 [2020-08-22 22:35:05,692 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 147 DAG size of output: 77 [2020-08-22 22:35:07,093 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 160 DAG size of output: 88 [2020-08-22 22:35:08,184 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 149 DAG size of output: 77 [2020-08-22 22:35:10,666 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:11,540 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:35:12,431 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 76 [2020-08-22 22:35:13,237 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 78 [2020-08-22 22:35:14,171 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 84 [2020-08-22 22:35:15,538 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 151 DAG size of output: 80 [2020-08-22 22:35:16,759 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 146 DAG size of output: 77 [2020-08-22 22:35:19,209 WARN L193 SmtUtils]: Spent 2.44 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:35:20,313 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 145 DAG size of output: 78 [2020-08-22 22:35:22,077 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 159 DAG size of output: 84 [2020-08-22 22:35:22,950 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 80 [2020-08-22 22:35:24,039 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 166 DAG size of output: 85 [2020-08-22 22:35:25,176 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 147 DAG size of output: 79 [2020-08-22 22:35:26,125 WARN L193 SmtUtils]: Spent 944.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 82 [2020-08-22 22:35:27,539 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 168 DAG size of output: 85 [2020-08-22 22:35:28,886 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 156 DAG size of output: 84 [2020-08-22 22:35:30,194 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 153 DAG size of output: 84 [2020-08-22 22:35:31,181 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 84 [2020-08-22 22:35:32,379 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 148 DAG size of output: 79 [2020-08-22 22:35:33,508 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 175 DAG size of output: 79 [2020-08-22 22:35:34,611 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:35:35,704 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:35:38,197 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:39,268 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:35:41,799 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:42,893 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 147 DAG size of output: 79 [2020-08-22 22:35:43,745 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:35:44,653 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:35:45,557 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 81 [2020-08-22 22:35:46,607 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 142 DAG size of output: 74 [2020-08-22 22:35:48,111 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 209 DAG size of output: 88 [2020-08-22 22:35:49,669 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 212 DAG size of output: 86 [2020-08-22 22:35:52,200 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:35:53,004 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 77 [2020-08-22 22:35:54,088 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 147 DAG size of output: 77 [2020-08-22 22:35:56,571 WARN L193 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:35:59,284 WARN L193 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:36:00,198 WARN L193 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 78 [2020-08-22 22:36:01,931 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 211 DAG size of output: 89 [2020-08-22 22:36:02,870 WARN L193 SmtUtils]: Spent 933.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 80 [2020-08-22 22:36:03,937 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 148 DAG size of output: 82 [2020-08-22 22:36:06,645 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:36:09,353 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:36:10,952 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 181 DAG size of output: 88 [2020-08-22 22:36:11,737 WARN L193 SmtUtils]: Spent 782.00 ms on a formula simplification. DAG size of input: 163 DAG size of output: 68 [2020-08-22 22:36:14,401 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 231 DAG size of output: 100 [2020-08-22 22:36:15,534 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 147 DAG size of output: 77 [2020-08-22 22:36:16,970 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 155 DAG size of output: 82 [2020-08-22 22:36:19,655 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:20,595 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 79 [2020-08-22 22:36:23,296 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:24,864 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 181 DAG size of output: 85 [2020-08-22 22:36:26,242 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 155 DAG size of output: 84 [2020-08-22 22:36:28,854 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:31,471 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:32,721 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:36:35,429 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:38,228 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:40,908 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:42,073 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 169 DAG size of output: 85 [2020-08-22 22:36:44,853 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 235 DAG size of output: 101 [2020-08-22 22:36:45,817 WARN L193 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 77 [2020-08-22 22:36:47,397 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 184 DAG size of output: 86 [2020-08-22 22:36:48,602 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 175 DAG size of output: 79