/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 13:53:18,889 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 13:53:18,891 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 13:53:18,905 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 13:53:18,906 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 13:53:18,907 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 13:53:18,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 13:53:18,909 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 13:53:18,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 13:53:18,912 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 13:53:18,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 13:53:18,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 13:53:18,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 13:53:18,915 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 13:53:18,916 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 13:53:18,917 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 13:53:18,918 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 13:53:18,919 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 13:53:18,920 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 13:53:18,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 13:53:18,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 13:53:18,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 13:53:18,926 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 13:53:18,927 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 13:53:18,929 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-07 13:53:18,937 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 13:53:18,938 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 13:53:18,938 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 13:53:18,939 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 13:53:18,948 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 13:53:18,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 13:53:18,950 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 13:53:18,950 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 13:53:18,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 13:53:18,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 13:53:18,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 13:53:18,952 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 13:53:18,952 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 13:53:18,952 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 13:53:18,952 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 13:53:18,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 13:53:18,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 13:53:18,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 13:53:18,953 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 13:53:18,953 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 13:53:18,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 13:53:18,954 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 13:53:19,230 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 13:53:19,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 13:53:19,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 13:53:19,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 13:53:19,249 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 13:53:19,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-07-07 13:53:19,322 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78443a6c/f28c0d68bb1d4d238258294ef4fd68ef/FLAG00b5aef9a [2020-07-07 13:53:19,875 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 13:53:19,876 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-07-07 13:53:19,895 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78443a6c/f28c0d68bb1d4d238258294ef4fd68ef/FLAG00b5aef9a [2020-07-07 13:53:20,150 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f78443a6c/f28c0d68bb1d4d238258294ef4fd68ef [2020-07-07 13:53:20,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 13:53:20,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 13:53:20,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 13:53:20,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 13:53:20,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 13:53:20,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:53:20" (1/1) ... [2020-07-07 13:53:20,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4949943c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:20, skipping insertion in model container [2020-07-07 13:53:20,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 01:53:20" (1/1) ... [2020-07-07 13:53:20,178 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 13:53:20,230 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 13:53:20,716 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:53:20,721 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 13:53:21,037 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 13:53:21,061 INFO L208 MainTranslator]: Completed translation [2020-07-07 13:53:21,061 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21 WrapperNode [2020-07-07 13:53:21,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 13:53:21,063 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 13:53:21,063 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 13:53:21,064 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 13:53:21,077 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,078 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,161 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,189 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (1/1) ... [2020-07-07 13:53:21,218 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 13:53:21,218 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 13:53:21,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 13:53:21,219 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 13:53:21,221 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (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 [2020-07-07 13:53:21,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 13:53:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 13:53:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-07-07 13:53:21,295 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 13:53:21,296 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 13:53:21,297 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 13:53:22,797 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 13:53:22,797 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-07 13:53:22,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:53:22 BoogieIcfgContainer [2020-07-07 13:53:22,806 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 13:53:22,807 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 13:53:22,807 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 13:53:22,810 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 13:53:22,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 01:53:20" (1/3) ... [2020-07-07 13:53:22,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccd691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:53:22, skipping insertion in model container [2020-07-07 13:53:22,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 01:53:21" (2/3) ... [2020-07-07 13:53:22,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@26ccd691 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 01:53:22, skipping insertion in model container [2020-07-07 13:53:22,813 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 01:53:22" (3/3) ... [2020-07-07 13:53:22,814 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-07-07 13:53:22,825 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 13:53:22,834 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 13:53:22,849 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 13:53:22,872 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 13:53:22,872 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 13:53:22,872 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 13:53:22,873 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 13:53:22,873 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 13:53:22,873 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 13:53:22,873 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 13:53:22,873 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 13:53:22,903 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-07-07 13:53:22,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-07-07 13:53:22,917 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:22,918 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] [2020-07-07 13:53:22,919 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:22,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:22,925 INFO L82 PathProgramCache]: Analyzing trace with hash -4985686, now seen corresponding path program 1 times [2020-07-07 13:53:22,934 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:22,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178488887] [2020-07-07 13:53:22,935 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:23,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:23,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:23,354 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:23,356 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178488887] [2020-07-07 13:53:23,358 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:23,358 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:53:23,359 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435901044] [2020-07-07 13:53:23,364 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:53:23,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:23,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:53:23,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:53:23,382 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-07-07 13:53:27,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:27,047 INFO L93 Difference]: Finished difference Result 1969 states and 2695 transitions. [2020-07-07 13:53:27,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-07 13:53:27,049 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-07-07 13:53:27,050 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:27,075 INFO L225 Difference]: With dead ends: 1969 [2020-07-07 13:53:27,075 INFO L226 Difference]: Without dead ends: 1228 [2020-07-07 13:53:27,091 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 [2020-07-07 13:53:27,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2020-07-07 13:53:27,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 997. [2020-07-07 13:53:27,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-07-07 13:53:27,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1298 transitions. [2020-07-07 13:53:27,280 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1298 transitions. Word has length 67 [2020-07-07 13:53:27,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:27,281 INFO L479 AbstractCegarLoop]: Abstraction has 997 states and 1298 transitions. [2020-07-07 13:53:27,281 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:53:27,281 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1298 transitions. [2020-07-07 13:53:27,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-07-07 13:53:27,291 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:27,292 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:53:27,292 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 13:53:27,292 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:27,293 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:27,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1110606662, now seen corresponding path program 1 times [2020-07-07 13:53:27,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:27,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2010779218] [2020-07-07 13:53:27,294 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:27,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:27,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:27,685 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:27,685 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:27,686 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2010779218] [2020-07-07 13:53:27,686 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:27,686 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:53:27,686 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416623175] [2020-07-07 13:53:27,688 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:53:27,688 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:27,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:53:27,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:53:27,689 INFO L87 Difference]: Start difference. First operand 997 states and 1298 transitions. Second operand 9 states. [2020-07-07 13:53:30,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:30,672 INFO L93 Difference]: Finished difference Result 2640 states and 3636 transitions. [2020-07-07 13:53:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 13:53:30,673 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 170 [2020-07-07 13:53:30,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:30,696 INFO L225 Difference]: With dead ends: 2640 [2020-07-07 13:53:30,696 INFO L226 Difference]: Without dead ends: 1658 [2020-07-07 13:53:30,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2020-07-07 13:53:30,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-07-07 13:53:30,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1584. [2020-07-07 13:53:30,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2020-07-07 13:53:30,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2092 transitions. [2020-07-07 13:53:30,882 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2092 transitions. Word has length 170 [2020-07-07 13:53:30,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:30,884 INFO L479 AbstractCegarLoop]: Abstraction has 1584 states and 2092 transitions. [2020-07-07 13:53:30,885 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:53:30,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2092 transitions. [2020-07-07 13:53:30,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-07-07 13:53:30,898 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:30,898 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-07 13:53:30,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 13:53:30,899 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:30,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:30,899 INFO L82 PathProgramCache]: Analyzing trace with hash -1244659725, now seen corresponding path program 1 times [2020-07-07 13:53:30,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:30,900 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [551975533] [2020-07-07 13:53:30,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:31,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:31,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:31,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:31,477 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:31,478 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [551975533] [2020-07-07 13:53:31,478 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:31,478 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-07-07 13:53:31,479 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007689751] [2020-07-07 13:53:31,479 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-07 13:53:31,480 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:31,480 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-07 13:53:31,480 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-07-07 13:53:31,480 INFO L87 Difference]: Start difference. First operand 1584 states and 2092 transitions. Second operand 11 states. [2020-07-07 13:53:36,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:36,268 INFO L93 Difference]: Finished difference Result 4026 states and 5543 transitions. [2020-07-07 13:53:36,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-07-07 13:53:36,269 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 246 [2020-07-07 13:53:36,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:36,298 INFO L225 Difference]: With dead ends: 4026 [2020-07-07 13:53:36,299 INFO L226 Difference]: Without dead ends: 2457 [2020-07-07 13:53:36,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=156, Invalid=494, Unknown=0, NotChecked=0, Total=650 [2020-07-07 13:53:36,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2457 states. [2020-07-07 13:53:36,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2457 to 2263. [2020-07-07 13:53:36,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2263 states. [2020-07-07 13:53:36,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2263 states to 2263 states and 2852 transitions. [2020-07-07 13:53:36,526 INFO L78 Accepts]: Start accepts. Automaton has 2263 states and 2852 transitions. Word has length 246 [2020-07-07 13:53:36,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:36,528 INFO L479 AbstractCegarLoop]: Abstraction has 2263 states and 2852 transitions. [2020-07-07 13:53:36,528 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-07 13:53:36,528 INFO L276 IsEmpty]: Start isEmpty. Operand 2263 states and 2852 transitions. [2020-07-07 13:53:36,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-07-07 13:53:36,533 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:36,533 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-07-07 13:53:36,534 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 13:53:36,534 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:36,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:36,534 INFO L82 PathProgramCache]: Analyzing trace with hash -715471298, now seen corresponding path program 1 times [2020-07-07 13:53:36,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:36,535 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [770020877] [2020-07-07 13:53:36,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:36,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:36,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:36,981 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:36,981 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [770020877] [2020-07-07 13:53:36,982 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:36,982 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-07 13:53:36,982 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100749162] [2020-07-07 13:53:36,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-07 13:53:36,983 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:36,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-07 13:53:36,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2020-07-07 13:53:36,984 INFO L87 Difference]: Start difference. First operand 2263 states and 2852 transitions. Second operand 8 states. [2020-07-07 13:53:41,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:41,409 INFO L93 Difference]: Finished difference Result 5953 states and 7870 transitions. [2020-07-07 13:53:41,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 13:53:41,409 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 295 [2020-07-07 13:53:41,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:41,448 INFO L225 Difference]: With dead ends: 5953 [2020-07-07 13:53:41,448 INFO L226 Difference]: Without dead ends: 3705 [2020-07-07 13:53:41,458 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:53:41,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2020-07-07 13:53:41,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3532. [2020-07-07 13:53:41,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3532 states. [2020-07-07 13:53:41,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3532 states to 3532 states and 4585 transitions. [2020-07-07 13:53:41,791 INFO L78 Accepts]: Start accepts. Automaton has 3532 states and 4585 transitions. Word has length 295 [2020-07-07 13:53:41,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:41,792 INFO L479 AbstractCegarLoop]: Abstraction has 3532 states and 4585 transitions. [2020-07-07 13:53:41,792 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-07 13:53:41,792 INFO L276 IsEmpty]: Start isEmpty. Operand 3532 states and 4585 transitions. [2020-07-07 13:53:41,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 419 [2020-07-07 13:53:41,804 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:41,805 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:53:41,805 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 13:53:41,805 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:41,805 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash -1881392687, now seen corresponding path program 1 times [2020-07-07 13:53:41,806 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:41,806 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [808355800] [2020-07-07 13:53:41,807 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:41,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:42,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:42,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:42,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:42,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:43,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:43,070 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:43,070 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [808355800] [2020-07-07 13:53:43,071 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:43,071 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-07-07 13:53:43,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1757883245] [2020-07-07 13:53:43,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-07 13:53:43,073 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:43,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-07 13:53:43,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2020-07-07 13:53:43,074 INFO L87 Difference]: Start difference. First operand 3532 states and 4585 transitions. Second operand 12 states. [2020-07-07 13:53:47,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:47,665 INFO L93 Difference]: Finished difference Result 8472 states and 11020 transitions. [2020-07-07 13:53:47,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-07 13:53:47,666 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 418 [2020-07-07 13:53:47,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:47,714 INFO L225 Difference]: With dead ends: 8472 [2020-07-07 13:53:47,714 INFO L226 Difference]: Without dead ends: 4955 [2020-07-07 13:53:47,740 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=142, Invalid=410, Unknown=0, NotChecked=0, Total=552 [2020-07-07 13:53:47,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4955 states. [2020-07-07 13:53:48,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4955 to 4852. [2020-07-07 13:53:48,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4852 states. [2020-07-07 13:53:48,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4852 states to 4852 states and 6124 transitions. [2020-07-07 13:53:48,252 INFO L78 Accepts]: Start accepts. Automaton has 4852 states and 6124 transitions. Word has length 418 [2020-07-07 13:53:48,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:48,252 INFO L479 AbstractCegarLoop]: Abstraction has 4852 states and 6124 transitions. [2020-07-07 13:53:48,253 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-07 13:53:48,253 INFO L276 IsEmpty]: Start isEmpty. Operand 4852 states and 6124 transitions. [2020-07-07 13:53:48,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-07-07 13:53:48,266 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:48,266 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:53:48,266 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 13:53:48,267 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:48,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:48,267 INFO L82 PathProgramCache]: Analyzing trace with hash -2093984225, now seen corresponding path program 1 times [2020-07-07 13:53:48,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:48,267 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [696679738] [2020-07-07 13:53:48,268 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:48,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:48,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:48,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:48,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:48,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:48,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:49,007 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:49,008 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:49,008 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [696679738] [2020-07-07 13:53:49,008 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:49,009 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:53:49,009 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590367422] [2020-07-07 13:53:49,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:53:49,010 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:49,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:53:49,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:53:49,012 INFO L87 Difference]: Start difference. First operand 4852 states and 6124 transitions. Second operand 10 states. [2020-07-07 13:53:54,587 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:54,588 INFO L93 Difference]: Finished difference Result 10408 states and 13381 transitions. [2020-07-07 13:53:54,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-07-07 13:53:54,590 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 511 [2020-07-07 13:53:54,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:54,645 INFO L225 Difference]: With dead ends: 10408 [2020-07-07 13:53:54,646 INFO L226 Difference]: Without dead ends: 4935 [2020-07-07 13:53:54,682 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=172, Invalid=530, Unknown=0, NotChecked=0, Total=702 [2020-07-07 13:53:54,690 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4935 states. [2020-07-07 13:53:55,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4935 to 4498. [2020-07-07 13:53:55,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4498 states. [2020-07-07 13:53:55,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4498 states to 4498 states and 5304 transitions. [2020-07-07 13:53:55,091 INFO L78 Accepts]: Start accepts. Automaton has 4498 states and 5304 transitions. Word has length 511 [2020-07-07 13:53:55,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:55,092 INFO L479 AbstractCegarLoop]: Abstraction has 4498 states and 5304 transitions. [2020-07-07 13:53:55,092 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:53:55,092 INFO L276 IsEmpty]: Start isEmpty. Operand 4498 states and 5304 transitions. [2020-07-07 13:53:55,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2020-07-07 13:53:55,114 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:55,115 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:53:55,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 13:53:55,115 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:55,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:55,116 INFO L82 PathProgramCache]: Analyzing trace with hash -1725478862, now seen corresponding path program 1 times [2020-07-07 13:53:55,116 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:55,116 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [431752008] [2020-07-07 13:53:55,117 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:55,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:55,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:53:55,854 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:53:55,855 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [431752008] [2020-07-07 13:53:55,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:53:55,855 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 13:53:55,855 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136253377] [2020-07-07 13:53:55,856 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 13:53:55,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:53:55,856 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 13:53:55,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-07-07 13:53:55,857 INFO L87 Difference]: Start difference. First operand 4498 states and 5304 transitions. Second operand 9 states. [2020-07-07 13:53:58,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:53:58,743 INFO L93 Difference]: Finished difference Result 10414 states and 12614 transitions. [2020-07-07 13:53:58,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-07 13:53:58,743 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 611 [2020-07-07 13:53:58,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:53:58,792 INFO L225 Difference]: With dead ends: 10414 [2020-07-07 13:53:58,792 INFO L226 Difference]: Without dead ends: 6313 [2020-07-07 13:53:58,813 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=105, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:53:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2020-07-07 13:53:59,550 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 6279. [2020-07-07 13:53:59,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6279 states. [2020-07-07 13:53:59,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6279 states to 6279 states and 7507 transitions. [2020-07-07 13:53:59,567 INFO L78 Accepts]: Start accepts. Automaton has 6279 states and 7507 transitions. Word has length 611 [2020-07-07 13:53:59,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:53:59,568 INFO L479 AbstractCegarLoop]: Abstraction has 6279 states and 7507 transitions. [2020-07-07 13:53:59,568 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 13:53:59,568 INFO L276 IsEmpty]: Start isEmpty. Operand 6279 states and 7507 transitions. [2020-07-07 13:53:59,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 613 [2020-07-07 13:53:59,583 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:53:59,583 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:53:59,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-07 13:53:59,584 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:53:59,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:53:59,584 INFO L82 PathProgramCache]: Analyzing trace with hash -426045437, now seen corresponding path program 1 times [2020-07-07 13:53:59,584 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:53:59,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1735472642] [2020-07-07 13:53:59,586 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:53:59,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:59,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:59,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:53:59,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:00,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:00,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:01,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:01,394 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:01,394 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1735472642] [2020-07-07 13:54:01,394 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:01,395 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-07-07 13:54:01,395 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [256502567] [2020-07-07 13:54:01,395 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-07 13:54:01,396 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:01,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-07 13:54:01,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=244, Unknown=0, NotChecked=0, Total=306 [2020-07-07 13:54:01,396 INFO L87 Difference]: Start difference. First operand 6279 states and 7507 transitions. Second operand 18 states. [2020-07-07 13:54:09,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:09,402 INFO L93 Difference]: Finished difference Result 13598 states and 16327 transitions. [2020-07-07 13:54:09,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-07-07 13:54:09,403 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 612 [2020-07-07 13:54:09,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:09,462 INFO L225 Difference]: With dead ends: 13598 [2020-07-07 13:54:09,463 INFO L226 Difference]: Without dead ends: 7267 [2020-07-07 13:54:09,484 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 383 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=311, Invalid=1249, Unknown=0, NotChecked=0, Total=1560 [2020-07-07 13:54:09,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7267 states. [2020-07-07 13:54:10,196 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7267 to 6778. [2020-07-07 13:54:10,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6778 states. [2020-07-07 13:54:10,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6778 states to 6778 states and 7949 transitions. [2020-07-07 13:54:10,216 INFO L78 Accepts]: Start accepts. Automaton has 6778 states and 7949 transitions. Word has length 612 [2020-07-07 13:54:10,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:10,216 INFO L479 AbstractCegarLoop]: Abstraction has 6778 states and 7949 transitions. [2020-07-07 13:54:10,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-07 13:54:10,217 INFO L276 IsEmpty]: Start isEmpty. Operand 6778 states and 7949 transitions. [2020-07-07 13:54:10,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 677 [2020-07-07 13:54:10,235 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:54:10,235 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-07-07 13:54:10,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-07 13:54:10,236 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:54:10,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:54:10,236 INFO L82 PathProgramCache]: Analyzing trace with hash -544940428, now seen corresponding path program 1 times [2020-07-07 13:54:10,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:54:10,237 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1958706413] [2020-07-07 13:54:10,237 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:54:10,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:11,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:11,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:11,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:11,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:11,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:12,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:12,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:12,987 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:12,987 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1958706413] [2020-07-07 13:54:12,987 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:12,988 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-07-07 13:54:12,988 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239584717] [2020-07-07 13:54:12,989 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-07 13:54:12,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:12,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-07 13:54:12,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=245, Unknown=0, NotChecked=0, Total=306 [2020-07-07 13:54:12,990 INFO L87 Difference]: Start difference. First operand 6778 states and 7949 transitions. Second operand 18 states. [2020-07-07 13:54:19,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:19,807 INFO L93 Difference]: Finished difference Result 14735 states and 17726 transitions. [2020-07-07 13:54:19,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-07 13:54:19,808 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 676 [2020-07-07 13:54:19,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:19,853 INFO L225 Difference]: With dead ends: 14735 [2020-07-07 13:54:19,853 INFO L226 Difference]: Without dead ends: 8179 [2020-07-07 13:54:19,876 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 261 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=250, Invalid=940, Unknown=0, NotChecked=0, Total=1190 [2020-07-07 13:54:19,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8179 states. [2020-07-07 13:54:20,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8179 to 7501. [2020-07-07 13:54:20,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7501 states. [2020-07-07 13:54:20,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7501 states to 7501 states and 8980 transitions. [2020-07-07 13:54:20,599 INFO L78 Accepts]: Start accepts. Automaton has 7501 states and 8980 transitions. Word has length 676 [2020-07-07 13:54:20,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:20,600 INFO L479 AbstractCegarLoop]: Abstraction has 7501 states and 8980 transitions. [2020-07-07 13:54:20,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-07 13:54:20,600 INFO L276 IsEmpty]: Start isEmpty. Operand 7501 states and 8980 transitions. [2020-07-07 13:54:20,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 756 [2020-07-07 13:54:20,614 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:54:20,614 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:54:20,614 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-07 13:54:20,615 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:54:20,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:54:20,615 INFO L82 PathProgramCache]: Analyzing trace with hash 864836317, now seen corresponding path program 1 times [2020-07-07 13:54:20,615 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:54:20,616 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [34546829] [2020-07-07 13:54:20,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:54:20,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:20,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:21,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:21,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:21,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:22,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:22,494 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:22,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [34546829] [2020-07-07 13:54:22,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:22,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-07-07 13:54:22,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231357662] [2020-07-07 13:54:22,495 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-07 13:54:22,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:22,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-07 13:54:22,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=212, Unknown=0, NotChecked=0, Total=272 [2020-07-07 13:54:22,496 INFO L87 Difference]: Start difference. First operand 7501 states and 8980 transitions. Second operand 17 states. [2020-07-07 13:54:30,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:30,206 INFO L93 Difference]: Finished difference Result 14046 states and 16999 transitions. [2020-07-07 13:54:30,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2020-07-07 13:54:30,207 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 755 [2020-07-07 13:54:30,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:30,247 INFO L225 Difference]: With dead ends: 14046 [2020-07-07 13:54:30,247 INFO L226 Difference]: Without dead ends: 7522 [2020-07-07 13:54:30,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 33 SyntacticMatches, 1 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 369 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=410, Invalid=1230, Unknown=0, NotChecked=0, Total=1640 [2020-07-07 13:54:30,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7522 states. [2020-07-07 13:54:31,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7522 to 7505. [2020-07-07 13:54:31,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7505 states. [2020-07-07 13:54:31,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7505 states to 7505 states and 8960 transitions. [2020-07-07 13:54:31,165 INFO L78 Accepts]: Start accepts. Automaton has 7505 states and 8960 transitions. Word has length 755 [2020-07-07 13:54:31,166 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:31,166 INFO L479 AbstractCegarLoop]: Abstraction has 7505 states and 8960 transitions. [2020-07-07 13:54:31,166 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-07 13:54:31,166 INFO L276 IsEmpty]: Start isEmpty. Operand 7505 states and 8960 transitions. [2020-07-07 13:54:31,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-07-07 13:54:31,178 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:54:31,178 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:54:31,178 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-07 13:54:31,178 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:54:31,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:54:31,179 INFO L82 PathProgramCache]: Analyzing trace with hash 1910435264, now seen corresponding path program 1 times [2020-07-07 13:54:31,179 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:54:31,179 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1680921626] [2020-07-07 13:54:31,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:54:31,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:31,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:32,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:32,010 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:32,010 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1680921626] [2020-07-07 13:54:32,011 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:32,011 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-07 13:54:32,011 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [755775546] [2020-07-07 13:54:32,012 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-07 13:54:32,012 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:32,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-07 13:54:32,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-07 13:54:32,013 INFO L87 Difference]: Start difference. First operand 7505 states and 8960 transitions. Second operand 5 states. [2020-07-07 13:54:35,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:35,204 INFO L93 Difference]: Finished difference Result 15941 states and 19440 transitions. [2020-07-07 13:54:35,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-07 13:54:35,205 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 888 [2020-07-07 13:54:35,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:35,263 INFO L225 Difference]: With dead ends: 15941 [2020-07-07 13:54:35,263 INFO L226 Difference]: Without dead ends: 9423 [2020-07-07 13:54:35,288 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-07-07 13:54:35,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9423 states. [2020-07-07 13:54:36,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9423 to 8980. [2020-07-07 13:54:36,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8980 states. [2020-07-07 13:54:36,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8980 states to 8980 states and 10912 transitions. [2020-07-07 13:54:36,516 INFO L78 Accepts]: Start accepts. Automaton has 8980 states and 10912 transitions. Word has length 888 [2020-07-07 13:54:36,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:36,517 INFO L479 AbstractCegarLoop]: Abstraction has 8980 states and 10912 transitions. [2020-07-07 13:54:36,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-07 13:54:36,517 INFO L276 IsEmpty]: Start isEmpty. Operand 8980 states and 10912 transitions. [2020-07-07 13:54:36,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2020-07-07 13:54:36,530 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:54:36,530 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:54:36,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-07-07 13:54:36,531 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:54:36,531 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:54:36,531 INFO L82 PathProgramCache]: Analyzing trace with hash 1844532278, now seen corresponding path program 1 times [2020-07-07 13:54:36,532 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:54:36,532 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [827256607] [2020-07-07 13:54:36,532 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:54:36,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:36,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:37,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:37,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:37,829 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:37,830 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [827256607] [2020-07-07 13:54:37,830 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:37,830 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-07-07 13:54:37,830 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206515152] [2020-07-07 13:54:37,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-07 13:54:37,836 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:37,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-07 13:54:37,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2020-07-07 13:54:37,836 INFO L87 Difference]: Start difference. First operand 8980 states and 10912 transitions. Second operand 10 states. [2020-07-07 13:54:43,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:43,559 INFO L93 Difference]: Finished difference Result 17174 states and 20525 transitions. [2020-07-07 13:54:43,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-07 13:54:43,559 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 900 [2020-07-07 13:54:43,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:43,585 INFO L225 Difference]: With dead ends: 17174 [2020-07-07 13:54:43,585 INFO L226 Difference]: Without dead ends: 9181 [2020-07-07 13:54:43,611 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 106 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2020-07-07 13:54:43,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9181 states. [2020-07-07 13:54:44,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9181 to 7712. [2020-07-07 13:54:44,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7712 states. [2020-07-07 13:54:44,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7712 states to 7712 states and 8754 transitions. [2020-07-07 13:54:44,543 INFO L78 Accepts]: Start accepts. Automaton has 7712 states and 8754 transitions. Word has length 900 [2020-07-07 13:54:44,544 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:44,544 INFO L479 AbstractCegarLoop]: Abstraction has 7712 states and 8754 transitions. [2020-07-07 13:54:44,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-07 13:54:44,544 INFO L276 IsEmpty]: Start isEmpty. Operand 7712 states and 8754 transitions. [2020-07-07 13:54:44,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2020-07-07 13:54:44,556 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 13:54:44,556 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 13:54:44,556 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-07-07 13:54:44,557 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 13:54:44,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 13:54:44,557 INFO L82 PathProgramCache]: Analyzing trace with hash -558197454, now seen corresponding path program 1 times [2020-07-07 13:54:44,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 13:54:44,558 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799720618] [2020-07-07 13:54:44,558 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 13:54:44,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:44,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 13:54:45,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 13:54:45,481 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 13:54:45,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799720618] [2020-07-07 13:54:45,481 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 13:54:45,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-07 13:54:45,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156995116] [2020-07-07 13:54:45,482 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-07 13:54:45,483 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 13:54:45,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-07 13:54:45,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-07 13:54:45,483 INFO L87 Difference]: Start difference. First operand 7712 states and 8754 transitions. Second operand 7 states. [2020-07-07 13:54:50,160 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 13:54:50,161 INFO L93 Difference]: Finished difference Result 9460 states and 10695 transitions. [2020-07-07 13:54:50,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 13:54:50,162 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 916 [2020-07-07 13:54:50,163 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 13:54:50,166 INFO L225 Difference]: With dead ends: 9460 [2020-07-07 13:54:50,166 INFO L226 Difference]: Without dead ends: 0 [2020-07-07 13:54:50,178 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-07-07 13:54:50,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-07 13:54:50,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-07 13:54:50,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-07 13:54:50,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-07 13:54:50,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 916 [2020-07-07 13:54:50,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 13:54:50,179 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-07 13:54:50,179 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-07 13:54:50,179 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-07 13:54:50,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-07 13:54:50,180 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-07-07 13:54:50,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-07 13:54:52,113 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-07 13:54:52,730 WARN L193 SmtUtils]: Spent 506.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:54:53,827 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:54:55,129 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:54:59,004 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 60 [2020-07-07 13:55:04,390 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 64 [2020-07-07 13:55:11,127 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-07-07 13:55:11,681 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:55:16,872 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 33 [2020-07-07 13:55:29,589 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 88 [2020-07-07 13:55:40,143 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-07 13:56:00,506 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-07 13:56:00,780 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:56:06,688 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-07 13:56:13,150 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-07-07 13:56:19,485 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2020-07-07 13:56:26,783 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification that was a NOOP. DAG size: 34 [2020-07-07 13:56:40,265 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:56:46,087 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 221 [2020-07-07 13:56:46,974 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 212 [2020-07-07 13:56:48,735 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 260 DAG size of output: 221 [2020-07-07 13:56:49,612 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 251 DAG size of output: 212 [2020-07-07 13:57:13,910 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 288 DAG size of output: 187 [2020-07-07 13:57:14,666 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 184 [2020-07-07 13:57:15,008 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 184 [2020-07-07 13:57:15,506 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 282 DAG size of output: 184 [2020-07-07 13:57:37,320 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 212 DAG size of output: 87 [2020-07-07 13:57:39,489 WARN L193 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 309 DAG size of output: 90 [2020-07-07 13:57:40,531 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 187 DAG size of output: 76 [2020-07-07 13:57:41,780 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-07-07 13:57:42,939 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-07-07 13:57:44,155 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 218 DAG size of output: 76 [2020-07-07 13:57:44,989 WARN L193 SmtUtils]: Spent 824.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 65 [2020-07-07 13:57:46,046 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 192 DAG size of output: 76 [2020-07-07 13:57:47,198 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-07-07 13:57:49,426 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:57:50,412 WARN L193 SmtUtils]: Spent 976.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-07-07 13:57:52,684 WARN L193 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:57:53,851 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-07-07 13:57:55,048 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 217 DAG size of output: 74 [2020-07-07 13:57:55,959 WARN L193 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 71 [2020-07-07 13:57:56,963 WARN L193 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 76 [2020-07-07 13:57:57,797 WARN L193 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-07-07 13:57:59,003 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 219 DAG size of output: 76 [2020-07-07 13:57:59,858 WARN L193 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-07-07 13:58:00,999 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 198 DAG size of output: 75 [2020-07-07 13:58:02,182 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 202 DAG size of output: 82 [2020-07-07 13:58:03,032 WARN L193 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 64 [2020-07-07 13:58:05,073 WARN L193 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:58:05,867 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 65 [2020-07-07 13:58:06,665 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 63 [2020-07-07 13:58:07,765 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 189 DAG size of output: 76 [2020-07-07 13:58:08,688 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 67 [2020-07-07 13:58:09,753 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 185 DAG size of output: 73 [2020-07-07 13:58:11,073 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 212 DAG size of output: 87 [2020-07-07 13:58:12,455 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 242 DAG size of output: 85 [2020-07-07 13:58:13,313 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 67 [2020-07-07 13:58:14,215 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 72 [2020-07-07 13:58:15,375 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 218 DAG size of output: 89 [2020-07-07 13:58:16,170 WARN L193 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-07-07 13:58:18,451 WARN L193 SmtUtils]: Spent 2.27 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:19,582 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-07-07 13:58:20,415 WARN L193 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 62 [2020-07-07 13:58:22,709 WARN L193 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:23,898 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 196 DAG size of output: 84 [2020-07-07 13:58:25,149 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2020-07-07 13:58:26,110 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-07-07 13:58:27,013 WARN L193 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-07 13:58:29,316 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:30,097 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-07 13:58:31,348 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 218 DAG size of output: 76 [2020-07-07 13:58:32,491 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 212 DAG size of output: 74 [2020-07-07 13:58:34,838 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:35,954 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 188 DAG size of output: 77 [2020-07-07 13:58:38,281 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:39,182 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 64 [2020-07-07 13:58:39,999 WARN L193 SmtUtils]: Spent 810.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 63 [2020-07-07 13:58:41,009 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 188 DAG size of output: 80 [2020-07-07 13:58:41,824 WARN L193 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 65 [2020-07-07 13:58:42,698 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-07-07 13:58:45,005 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:46,255 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 217 DAG size of output: 84 [2020-07-07 13:58:47,203 WARN L193 SmtUtils]: Spent 941.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 79 [2020-07-07 13:58:48,333 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-07-07 13:58:49,700 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 213 DAG size of output: 90 [2020-07-07 13:58:50,788 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 215 DAG size of output: 73 [2020-07-07 13:58:51,975 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 212 DAG size of output: 73 [2020-07-07 13:58:54,308 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:56,636 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:58:58,969 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:59:01,286 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:59:02,337 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 84 [2020-07-07 13:59:03,090 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 71 [2020-07-07 13:59:04,154 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 188 DAG size of output: 80 [2020-07-07 13:59:05,635 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 205 DAG size of output: 84 [2020-07-07 13:59:06,707 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2020-07-07 13:59:09,048 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:59:09,924 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 66 [2020-07-07 13:59:11,072 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 190 DAG size of output: 73 [2020-07-07 13:59:13,423 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 13:59:14,313 WARN L193 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 69 [2020-07-07 13:59:15,270 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 69 [2020-07-07 13:59:16,226 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 69 [2020-07-07 13:59:18,308 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:19,571 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-07-07 13:59:20,579 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 13:59:21,586 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 13:59:22,689 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 13:59:24,791 WARN L193 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:25,792 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 13:59:27,904 WARN L193 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:28,932 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 13:59:30,047 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 13:59:32,029 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 13:59:33,995 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 13:59:35,142 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 13:59:37,101 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 13:59:39,110 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 13:59:41,246 WARN L193 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:42,408 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-07-07 13:59:43,438 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 13:59:44,590 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-07-07 13:59:46,736 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:47,869 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 13:59:50,028 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 13:59:51,091 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-07-07 13:59:52,200 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 13:59:53,426 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 192 DAG size of output: 83 [2020-07-07 13:59:55,752 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 309 DAG size of output: 90 [2020-07-07 13:59:56,719 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 70 [2020-07-07 13:59:58,166 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 198 DAG size of output: 85 [2020-07-07 13:59:59,289 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 191 DAG size of output: 72 [2020-07-07 14:00:01,800 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:00:02,719 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 69 [2020-07-07 14:00:04,252 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 193 DAG size of output: 77 [2020-07-07 14:00:05,500 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-07-07 14:00:06,665 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-07-07 14:00:08,000 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 14:00:09,148 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 211 DAG size of output: 72 [2020-07-07 14:00:10,445 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 196 DAG size of output: 77 [2020-07-07 14:00:11,331 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 66 [2020-07-07 14:00:13,338 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 217 DAG size of output: 90 [2020-07-07 14:00:14,302 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 67 [2020-07-07 14:00:16,515 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:00:17,428 WARN L193 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-07-07 14:00:19,621 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:00:20,495 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 65 [2020-07-07 14:00:21,460 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 71 [2020-07-07 14:00:23,050 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 252 DAG size of output: 85 [2020-07-07 14:00:24,335 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 203 DAG size of output: 85 [2020-07-07 14:00:25,305 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 74 [2020-07-07 14:00:26,195 WARN L193 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 65 [2020-07-07 14:00:27,232 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-07-07 14:00:28,306 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 188 DAG size of output: 80 [2020-07-07 14:00:29,202 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 65 [2020-07-07 14:00:30,316 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 183 DAG size of output: 76 [2020-07-07 14:00:32,710 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 309 DAG size of output: 90 [2020-07-07 14:00:34,001 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 203 DAG size of output: 85 [2020-07-07 14:00:35,204 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 209 DAG size of output: 78 [2020-07-07 14:00:36,775 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 194 DAG size of output: 82 [2020-07-07 14:00:38,311 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 201 DAG size of output: 92 [2020-07-07 14:00:39,400 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:00:41,636 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:00:42,617 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-07 14:00:43,556 WARN L193 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 65 [2020-07-07 14:00:45,814 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:00:47,265 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 194 DAG size of output: 74 [2020-07-07 14:00:48,228 WARN L193 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 68 [2020-07-07 14:00:49,692 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 212 DAG size of output: 87 [2020-07-07 14:00:50,588 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-07 14:00:52,844 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:00:55,383 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:00:56,502 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 192 DAG size of output: 80 [2020-07-07 14:00:57,499 WARN L193 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 69 [2020-07-07 14:00:59,066 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 251 DAG size of output: 83 [2020-07-07 14:01:00,017 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 64 [2020-07-07 14:01:01,392 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 217 DAG size of output: 86 [2020-07-07 14:01:04,035 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:01:04,982 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 63 [2020-07-07 14:01:06,318 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 205 DAG size of output: 86 [2020-07-07 14:01:07,194 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-07 14:01:08,521 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 205 DAG size of output: 74 [2020-07-07 14:01:09,770 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 200 DAG size of output: 88 [2020-07-07 14:01:10,831 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 184 DAG size of output: 68 [2020-07-07 14:01:13,438 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:01:16,030 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:01:17,235 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-07-07 14:01:18,479 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-07-07 14:01:20,631 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 276 DAG size of output: 83 [2020-07-07 14:01:23,229 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:01:24,240 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 189 DAG size of output: 75 [2020-07-07 14:01:25,492 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 188 DAG size of output: 75 [2020-07-07 14:01:26,788 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 203 DAG size of output: 74 [2020-07-07 14:01:29,364 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:01:30,431 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 187 DAG size of output: 69 [2020-07-07 14:01:31,445 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 202 DAG size of output: 69 [2020-07-07 14:01:32,421 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-07-07 14:01:34,734 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:01:35,934 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:01:38,273 WARN L193 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:01:39,385 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:01:40,868 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 217 DAG size of output: 73 [2020-07-07 14:01:42,935 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 253 DAG size of output: 82 [2020-07-07 14:01:45,304 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:01:47,157 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 231 DAG size of output: 87 [2020-07-07 14:01:49,393 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:01:51,633 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:01:52,887 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-07-07 14:01:54,101 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:01:55,318 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:01:57,732 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:01:58,877 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:02:01,299 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:02:03,719 WARN L193 SmtUtils]: Spent 2.41 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:02:04,689 WARN L193 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 70 [2020-07-07 14:02:05,687 WARN L193 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 65 [2020-07-07 14:02:06,629 WARN L193 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-07-07 14:02:08,039 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 216 DAG size of output: 82 [2020-07-07 14:02:09,077 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 179 DAG size of output: 67 [2020-07-07 14:02:10,401 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-07-07 14:02:11,421 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2020-07-07 14:02:12,815 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 212 DAG size of output: 74 [2020-07-07 14:02:15,564 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:02:16,521 WARN L193 SmtUtils]: Spent 951.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2020-07-07 14:02:17,525 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 64 [2020-07-07 14:02:18,547 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-07-07 14:02:19,595 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2020-07-07 14:02:20,891 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-07-07 14:02:22,303 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 196 DAG size of output: 84 [2020-07-07 14:02:23,552 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 180 DAG size of output: 74 [2020-07-07 14:02:26,026 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:02:27,247 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-07-07 14:02:29,900 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 309 DAG size of output: 90 [2020-07-07 14:02:31,099 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-07-07 14:02:32,375 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 191 DAG size of output: 72 [2020-07-07 14:02:33,451 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 202 DAG size of output: 69 [2020-07-07 14:02:35,419 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 229 DAG size of output: 99 [2020-07-07 14:02:38,246 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:02:39,181 WARN L193 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 69 [2020-07-07 14:02:40,445 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 191 DAG size of output: 77 [2020-07-07 14:02:41,468 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 187 DAG size of output: 66 [2020-07-07 14:02:42,461 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 65 [2020-07-07 14:02:43,780 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-07-07 14:02:45,084 WARN L193 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2020-07-07 14:02:46,136 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 180 DAG size of output: 70 [2020-07-07 14:02:47,480 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 190 DAG size of output: 73 [2020-07-07 14:02:48,587 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 202 DAG size of output: 69 [2020-07-07 14:02:49,928 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 204 DAG size of output: 81 [2020-07-07 14:02:51,025 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-07 14:02:52,165 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 192 DAG size of output: 79 [2020-07-07 14:02:53,678 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 219 DAG size of output: 76 [2020-07-07 14:02:56,567 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:02:59,140 WARN L193 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:03:00,973 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 207 DAG size of output: 78 [2020-07-07 14:03:03,675 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 244 DAG size of output: 96 [2020-07-07 14:03:05,007 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 183 DAG size of output: 74 [2020-07-07 14:03:06,561 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 219 DAG size of output: 76 [2020-07-07 14:03:07,618 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 180 DAG size of output: 69 [2020-07-07 14:03:09,030 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 193 DAG size of output: 77 [2020-07-07 14:03:11,659 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:03:13,038 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 187 DAG size of output: 75 [2020-07-07 14:03:15,866 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 309 DAG size of output: 90 [2020-07-07 14:03:17,528 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 216 DAG size of output: 73 [2020-07-07 14:03:18,636 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 182 DAG size of output: 67 [2020-07-07 14:03:20,220 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 219 DAG size of output: 76 [2020-07-07 14:03:21,339 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 183 DAG size of output: 67 [2020-07-07 14:03:22,389 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 181 DAG size of output: 62 [2020-07-07 14:03:23,860 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 192 DAG size of output: 83 [2020-07-07 14:03:24,947 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 183 DAG size of output: 62 [2020-07-07 14:03:25,966 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 175 DAG size of output: 65 [2020-07-07 14:03:27,068 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 189 DAG size of output: 68 [2020-07-07 14:03:28,382 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 14:03:29,838 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 194 DAG size of output: 78 [2020-07-07 14:03:32,834 WARN L193 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:03:35,268 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 217 DAG size of output: 90 [2020-07-07 14:03:38,309 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:03:41,375 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:03:42,553 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 190 DAG size of output: 71 [2020-07-07 14:03:43,741 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 192 DAG size of output: 70 [2020-07-07 14:03:46,786 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:03:47,836 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 186 DAG size of output: 63 [2020-07-07 14:03:49,052 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 192 DAG size of output: 78 [2020-07-07 14:03:52,141 WARN L193 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:03:54,273 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 251 DAG size of output: 93 [2020-07-07 14:03:55,639 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 196 DAG size of output: 73 [2020-07-07 14:03:57,068 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 184 DAG size of output: 75 [2020-07-07 14:04:00,195 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:04:01,381 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-07 14:04:02,392 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 160 DAG size of output: 54 [2020-07-07 14:04:03,811 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 14:04:07,010 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:04:08,237 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 202 DAG size of output: 69 [2020-07-07 14:04:09,528 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 194 DAG size of output: 75 [2020-07-07 14:04:10,678 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 184 DAG size of output: 66 [2020-07-07 14:04:11,961 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 186 DAG size of output: 73 [2020-07-07 14:04:13,242 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 202 DAG size of output: 63 [2020-07-07 14:04:14,388 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 191 DAG size of output: 69 [2020-07-07 14:04:15,610 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 198 DAG size of output: 69 [2020-07-07 14:04:18,681 WARN L193 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:04:19,982 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:04:22,733 WARN L193 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:04:25,462 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:04:26,859 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:04:28,453 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 187 DAG size of output: 61 [2020-07-07 14:04:29,682 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 198 DAG size of output: 69 [2020-07-07 14:04:32,460 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:04:33,907 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-07-07 14:04:35,014 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 201 DAG size of output: 70 [2020-07-07 14:04:36,184 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 194 DAG size of output: 71 [2020-07-07 14:04:37,384 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 195 DAG size of output: 63 [2020-07-07 14:04:38,723 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 199 DAG size of output: 83 [2020-07-07 14:04:40,087 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 195 DAG size of output: 84 [2020-07-07 14:04:42,712 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:04:45,356 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:04:46,691 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:04:48,095 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:04:49,507 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:04:52,357 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:04:53,725 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:04:55,059 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:04:57,939 WARN L193 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:04:58,987 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 160 DAG size of output: 54 [2020-07-07 14:05:01,906 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:05:04,885 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:05:06,311 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 189 DAG size of output: 65 [2020-07-07 14:05:07,965 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 212 DAG size of output: 74 [2020-07-07 14:05:10,933 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:05:12,434 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 199 DAG size of output: 80 [2020-07-07 14:05:13,672 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 179 DAG size of output: 67 [2020-07-07 14:05:16,409 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:05:19,192 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:05:21,999 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:05:23,541 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 186 DAG size of output: 69 [2020-07-07 14:05:25,049 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 191 DAG size of output: 72 [2020-07-07 14:05:28,455 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:05:30,236 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 14:05:31,407 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 198 DAG size of output: 63 [2020-07-07 14:05:34,857 WARN L193 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:05:36,015 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 177 DAG size of output: 65 [2020-07-07 14:05:39,482 WARN L193 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:05:41,787 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 217 DAG size of output: 92 [2020-07-07 14:05:43,291 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 200 DAG size of output: 88 [2020-07-07 14:05:46,535 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 302 DAG size of output: 90 [2020-07-07 14:05:47,720 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 181 DAG size of output: 69 [2020-07-07 14:05:49,289 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 191 DAG size of output: 77 [2020-07-07 14:05:50,904 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 197 DAG size of output: 73 [2020-07-07 14:05:53,732 WARN L193 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:05:56,545 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:05:59,397 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:06:02,246 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:06:04,921 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 234 DAG size of output: 100 [2020-07-07 14:06:06,040 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 185 DAG size of output: 63 [2020-07-07 14:06:07,762 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 206 DAG size of output: 78 [2020-07-07 14:06:09,288 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-07-07 14:06:10,496 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2020-07-07 14:06:11,748 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 183 DAG size of output: 70 [2020-07-07 14:06:14,647 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 297 DAG size of output: 78 [2020-07-07 14:06:16,103 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 183 DAG size of output: 73 [2020-07-07 14:06:18,845 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 302 DAG size of output: 70 [2020-07-07 14:06:20,375 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 181 DAG size of output: 65 [2020-07-07 14:06:21,784 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 189 DAG size of output: 65