/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic BIGGEST_EQUIVALENCE_CLASS --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 4 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/recursive/Ackermann03.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 00:31:30,784 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 00:31:30,786 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 00:31:30,798 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 00:31:30,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 00:31:30,800 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 00:31:30,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 00:31:30,803 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 00:31:30,805 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 00:31:30,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 00:31:30,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 00:31:30,815 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 00:31:30,816 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 00:31:30,817 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 00:31:30,818 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 00:31:30,819 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 00:31:30,820 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 00:31:30,822 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 00:31:30,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 00:31:30,829 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 00:31:30,832 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 00:31:30,833 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 00:31:30,836 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 00:31:30,837 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 00:31:30,841 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 00:31:30,841 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 00:31:30,841 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 00:31:30,845 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 00:31:30,845 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 00:31:30,847 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 00:31:30,847 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 00:31:30,849 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 00:31:30,850 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 00:31:30,852 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 00:31:30,856 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 00:31:30,856 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 00:31:30,857 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 00:31:30,857 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 00:31:30,857 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 00:31:30,858 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 00:31:30,860 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 00:31:30,861 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 00:31:30,893 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 00:31:30,894 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 00:31:30,898 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 00:31:30,898 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 00:31:30,899 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 00:31:30,899 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 00:31:30,899 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 00:31:30,899 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 00:31:30,899 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 00:31:30,900 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 00:31:30,901 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 00:31:30,901 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 00:31:30,901 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 00:31:30,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 00:31:30,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 00:31:30,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 00:31:30,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 00:31:30,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 00:31:30,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 00:31:30,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 00:31:30,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 00:31:30,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:30,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 00:31:30,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 00:31:30,907 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> BIGGEST_EQUIVALENCE_CLASS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 4 [2020-07-21 00:31:31,199 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 00:31:31,220 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 00:31:31,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 00:31:31,227 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 00:31:31,229 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 00:31:31,231 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursive/Ackermann03.c [2020-07-21 00:31:31,302 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/484ff476f/39538c9eb8894bdfbf6e2cc6043383bd/FLAG46b0d0368 [2020-07-21 00:31:31,768 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 00:31:31,769 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursive/Ackermann03.c [2020-07-21 00:31:31,777 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/484ff476f/39538c9eb8894bdfbf6e2cc6043383bd/FLAG46b0d0368 [2020-07-21 00:31:32,131 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/484ff476f/39538c9eb8894bdfbf6e2cc6043383bd [2020-07-21 00:31:32,139 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 00:31:32,142 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 00:31:32,143 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 00:31:32,143 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 00:31:32,146 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 00:31:32,147 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,150 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487a7de6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32, skipping insertion in model container [2020-07-21 00:31:32,150 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,157 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 00:31:32,176 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 00:31:32,357 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:31:32,361 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 00:31:32,379 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 00:31:32,394 INFO L208 MainTranslator]: Completed translation [2020-07-21 00:31:32,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32 WrapperNode [2020-07-21 00:31:32,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 00:31:32,396 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 00:31:32,396 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 00:31:32,396 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 00:31:32,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,416 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,416 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,420 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,422 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,423 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (1/1) ... [2020-07-21 00:31:32,425 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 00:31:32,425 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 00:31:32,425 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 00:31:32,425 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 00:31:32,426 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (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 [2020-07-21 00:31:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 00:31:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 00:31:32,569 INFO L138 BoogieDeclarations]: Found implementation of procedure ackermann [2020-07-21 00:31:32,570 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 00:31:32,570 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 00:31:32,571 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 00:31:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure ackermann [2020-07-21 00:31:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 00:31:32,572 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 00:31:32,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 00:31:32,784 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 00:31:32,784 INFO L295 CfgBuilder]: Removed 0 assume(true) statements. [2020-07-21 00:31:32,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:31:32 BoogieIcfgContainer [2020-07-21 00:31:32,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 00:31:32,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 00:31:32,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 00:31:32,794 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 00:31:32,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 12:31:32" (1/3) ... [2020-07-21 00:31:32,795 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:31:32, skipping insertion in model container [2020-07-21 00:31:32,795 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 12:31:32" (2/3) ... [2020-07-21 00:31:32,796 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@615a18e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 12:31:32, skipping insertion in model container [2020-07-21 00:31:32,796 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 12:31:32" (3/3) ... [2020-07-21 00:31:32,798 INFO L109 eAbstractionObserver]: Analyzing ICFG Ackermann03.c [2020-07-21 00:31:32,809 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 00:31:32,816 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 00:31:32,830 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 00:31:32,858 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 00:31:32,859 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 00:31:32,859 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 00:31:32,859 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 00:31:32,860 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 00:31:32,860 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 00:31:32,860 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 00:31:32,860 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 00:31:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states. [2020-07-21 00:31:32,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-21 00:31:32,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:32,894 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:32,894 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:32,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:32,903 INFO L82 PathProgramCache]: Analyzing trace with hash -1796234678, now seen corresponding path program 1 times [2020-07-21 00:31:32,913 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:32,914 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308913201] [2020-07-21 00:31:32,914 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:32,993 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:31:32,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:32,996 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 00:31:33,001 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:33,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 00:31:33,086 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 00:31:33,087 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308913201] [2020-07-21 00:31:33,088 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 00:31:33,088 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-21 00:31:33,089 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68617659] [2020-07-21 00:31:33,094 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-21 00:31:33,094 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:33,107 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-21 00:31:33,108 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-07-21 00:31:33,110 INFO L87 Difference]: Start difference. First operand 27 states. Second operand 5 states. [2020-07-21 00:31:33,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:33,252 INFO L93 Difference]: Finished difference Result 42 states and 54 transitions. [2020-07-21 00:31:33,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-21 00:31:33,254 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2020-07-21 00:31:33,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:33,265 INFO L225 Difference]: With dead ends: 42 [2020-07-21 00:31:33,265 INFO L226 Difference]: Without dead ends: 28 [2020-07-21 00:31:33,269 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-21 00:31:33,286 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2020-07-21 00:31:33,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2020-07-21 00:31:33,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2020-07-21 00:31:33,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 36 transitions. [2020-07-21 00:31:33,317 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 36 transitions. Word has length 15 [2020-07-21 00:31:33,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:33,317 INFO L479 AbstractCegarLoop]: Abstraction has 28 states and 36 transitions. [2020-07-21 00:31:33,318 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-21 00:31:33,318 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 36 transitions. [2020-07-21 00:31:33,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-21 00:31:33,321 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:33,321 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:33,536 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:33,536 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:33,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:33,537 INFO L82 PathProgramCache]: Analyzing trace with hash -895156504, now seen corresponding path program 1 times [2020-07-21 00:31:33,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:33,539 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823936220] [2020-07-21 00:31:33,539 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:33,581 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:31:33,581 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:33,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 4 conjunts are in the unsatisfiable core [2020-07-21 00:31:33,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:33,617 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 00:31:33,618 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:33,711 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-07-21 00:31:33,712 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823936220] [2020-07-21 00:31:33,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:33,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 8 [2020-07-21 00:31:33,712 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13854169] [2020-07-21 00:31:33,714 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 00:31:33,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:33,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 00:31:33,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 00:31:33,716 INFO L87 Difference]: Start difference. First operand 28 states and 36 transitions. Second operand 8 states. [2020-07-21 00:31:33,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:33,865 INFO L93 Difference]: Finished difference Result 68 states and 118 transitions. [2020-07-21 00:31:33,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-21 00:31:33,866 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2020-07-21 00:31:33,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:33,870 INFO L225 Difference]: With dead ends: 68 [2020-07-21 00:31:33,870 INFO L226 Difference]: Without dead ends: 44 [2020-07-21 00:31:33,872 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 38 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-07-21 00:31:33,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2020-07-21 00:31:33,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2020-07-21 00:31:33,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2020-07-21 00:31:33,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 69 transitions. [2020-07-21 00:31:33,890 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 69 transitions. Word has length 22 [2020-07-21 00:31:33,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:33,891 INFO L479 AbstractCegarLoop]: Abstraction has 44 states and 69 transitions. [2020-07-21 00:31:33,891 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 00:31:33,891 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 69 transitions. [2020-07-21 00:31:33,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-21 00:31:33,895 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:33,895 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:34,110 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:34,111 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:34,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:34,112 INFO L82 PathProgramCache]: Analyzing trace with hash -506207890, now seen corresponding path program 1 times [2020-07-21 00:31:34,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:34,113 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [667026096] [2020-07-21 00:31:34,113 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:34,200 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:31:34,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:34,202 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 00:31:34,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 24 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2020-07-21 00:31:34,272 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:34,653 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:34,727 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:34,766 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:34,767 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:34,801 INFO L134 CoverageAnalysis]: Checked inductivity of 67 backedges. 6 proven. 27 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-07-21 00:31:34,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [667026096] [2020-07-21 00:31:34,802 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:34,802 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7] total 8 [2020-07-21 00:31:34,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [718106870] [2020-07-21 00:31:34,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-21 00:31:34,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:34,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-21 00:31:34,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-07-21 00:31:34,804 INFO L87 Difference]: Start difference. First operand 44 states and 69 transitions. Second operand 8 states. [2020-07-21 00:31:34,909 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:34,910 INFO L93 Difference]: Finished difference Result 61 states and 116 transitions. [2020-07-21 00:31:34,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 00:31:34,911 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 48 [2020-07-21 00:31:34,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:34,915 INFO L225 Difference]: With dead ends: 61 [2020-07-21 00:31:34,915 INFO L226 Difference]: Without dead ends: 57 [2020-07-21 00:31:34,916 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 82 SyntacticMatches, 9 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-07-21 00:31:34,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2020-07-21 00:31:34,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 57. [2020-07-21 00:31:34,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2020-07-21 00:31:34,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 112 transitions. [2020-07-21 00:31:34,937 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 112 transitions. Word has length 48 [2020-07-21 00:31:34,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:34,938 INFO L479 AbstractCegarLoop]: Abstraction has 57 states and 112 transitions. [2020-07-21 00:31:34,938 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-21 00:31:34,938 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 112 transitions. [2020-07-21 00:31:34,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2020-07-21 00:31:34,944 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:34,944 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 7, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:35,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:35,159 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:35,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:35,160 INFO L82 PathProgramCache]: Analyzing trace with hash 984881173, now seen corresponding path program 2 times [2020-07-21 00:31:35,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:35,161 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [310150284] [2020-07-21 00:31:35,161 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:35,239 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:31:35,239 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:35,241 INFO L263 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 17 conjunts are in the unsatisfiable core [2020-07-21 00:31:35,254 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:35,396 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 141 proven. 37 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2020-07-21 00:31:35,397 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:37,221 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 85 proven. 65 refuted. 0 times theorem prover too weak. 115 trivial. 0 not checked. [2020-07-21 00:31:37,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [310150284] [2020-07-21 00:31:37,223 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:37,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15] total 24 [2020-07-21 00:31:37,224 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945897865] [2020-07-21 00:31:37,226 INFO L459 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-07-21 00:31:37,226 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:37,227 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-07-21 00:31:37,229 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=470, Unknown=0, NotChecked=0, Total=552 [2020-07-21 00:31:37,229 INFO L87 Difference]: Start difference. First operand 57 states and 112 transitions. Second operand 24 states. [2020-07-21 00:31:38,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:38,078 INFO L93 Difference]: Finished difference Result 226 states and 903 transitions. [2020-07-21 00:31:38,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-07-21 00:31:38,087 INFO L78 Accepts]: Start accepts. Automaton has 24 states. Word has length 82 [2020-07-21 00:31:38,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:38,105 INFO L225 Difference]: With dead ends: 226 [2020-07-21 00:31:38,106 INFO L226 Difference]: Without dead ends: 177 [2020-07-21 00:31:38,115 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 186 GetRequests, 139 SyntacticMatches, 4 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 340 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=355, Invalid=1625, Unknown=0, NotChecked=0, Total=1980 [2020-07-21 00:31:38,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2020-07-21 00:31:38,204 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 95. [2020-07-21 00:31:38,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-21 00:31:38,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 275 transitions. [2020-07-21 00:31:38,208 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 275 transitions. Word has length 82 [2020-07-21 00:31:38,209 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:38,209 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 275 transitions. [2020-07-21 00:31:38,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 24 states. [2020-07-21 00:31:38,209 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 275 transitions. [2020-07-21 00:31:38,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-07-21 00:31:38,221 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:38,221 INFO L422 BasicCegarLoop]: trace histogram [17, 17, 10, 7, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:38,433 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:38,434 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:38,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:38,435 INFO L82 PathProgramCache]: Analyzing trace with hash 1232135348, now seen corresponding path program 3 times [2020-07-21 00:31:38,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:38,436 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [801023784] [2020-07-21 00:31:38,436 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:38,502 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:31:38,502 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:38,503 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-21 00:31:38,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:38,655 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 347 proven. 107 refuted. 0 times theorem prover too weak. 207 trivial. 0 not checked. [2020-07-21 00:31:38,655 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:39,654 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:40,544 INFO L134 CoverageAnalysis]: Checked inductivity of 661 backedges. 144 proven. 197 refuted. 0 times theorem prover too weak. 320 trivial. 0 not checked. [2020-07-21 00:31:40,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [801023784] [2020-07-21 00:31:40,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:40,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 16] total 22 [2020-07-21 00:31:40,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166388421] [2020-07-21 00:31:40,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-07-21 00:31:40,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:40,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-07-21 00:31:40,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=392, Unknown=0, NotChecked=0, Total=462 [2020-07-21 00:31:40,548 INFO L87 Difference]: Start difference. First operand 95 states and 275 transitions. Second operand 22 states. [2020-07-21 00:31:41,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:41,478 INFO L93 Difference]: Finished difference Result 256 states and 1032 transitions. [2020-07-21 00:31:41,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2020-07-21 00:31:41,479 INFO L78 Accepts]: Start accepts. Automaton has 22 states. Word has length 121 [2020-07-21 00:31:41,479 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:41,487 INFO L225 Difference]: With dead ends: 256 [2020-07-21 00:31:41,487 INFO L226 Difference]: Without dead ends: 169 [2020-07-21 00:31:41,494 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 269 GetRequests, 210 SyntacticMatches, 11 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 496 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=463, Invalid=1987, Unknown=0, NotChecked=0, Total=2450 [2020-07-21 00:31:41,495 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2020-07-21 00:31:41,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 95. [2020-07-21 00:31:41,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 95 states. [2020-07-21 00:31:41,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 95 states to 95 states and 251 transitions. [2020-07-21 00:31:41,552 INFO L78 Accepts]: Start accepts. Automaton has 95 states and 251 transitions. Word has length 121 [2020-07-21 00:31:41,553 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:41,553 INFO L479 AbstractCegarLoop]: Abstraction has 95 states and 251 transitions. [2020-07-21 00:31:41,555 INFO L480 AbstractCegarLoop]: Interpolant automaton has 22 states. [2020-07-21 00:31:41,555 INFO L276 IsEmpty]: Start isEmpty. Operand 95 states and 251 transitions. [2020-07-21 00:31:41,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-21 00:31:41,563 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:41,564 INFO L422 BasicCegarLoop]: trace histogram [22, 22, 13, 9, 8, 8, 8, 8, 8, 8, 8, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:41,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:41,771 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:41,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:41,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1681770238, now seen corresponding path program 4 times [2020-07-21 00:31:41,773 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:41,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [579420951] [2020-07-21 00:31:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:41,907 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:31:41,907 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:41,909 INFO L263 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 16 conjunts are in the unsatisfiable core [2020-07-21 00:31:41,929 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:42,023 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 590 proven. 197 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2020-07-21 00:31:42,023 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:42,930 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:42,974 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:42,975 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,018 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,051 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,392 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,470 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,500 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:43,550 INFO L134 CoverageAnalysis]: Checked inductivity of 1134 backedges. 215 proven. 367 refuted. 0 times theorem prover too weak. 552 trivial. 0 not checked. [2020-07-21 00:31:43,551 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [579420951] [2020-07-21 00:31:43,551 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:43,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 17 [2020-07-21 00:31:43,551 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420270191] [2020-07-21 00:31:43,552 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 00:31:43,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:43,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 00:31:43,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-07-21 00:31:43,553 INFO L87 Difference]: Start difference. First operand 95 states and 251 transitions. Second operand 17 states. [2020-07-21 00:31:43,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:43,988 INFO L93 Difference]: Finished difference Result 182 states and 602 transitions. [2020-07-21 00:31:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-07-21 00:31:43,989 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 154 [2020-07-21 00:31:43,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:43,992 INFO L225 Difference]: With dead ends: 182 [2020-07-21 00:31:43,992 INFO L226 Difference]: Without dead ends: 82 [2020-07-21 00:31:43,999 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 277 SyntacticMatches, 15 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=199, Invalid=503, Unknown=0, NotChecked=0, Total=702 [2020-07-21 00:31:44,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-07-21 00:31:44,014 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-07-21 00:31:44,014 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-21 00:31:44,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 138 transitions. [2020-07-21 00:31:44,018 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 138 transitions. Word has length 154 [2020-07-21 00:31:44,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:44,020 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 138 transitions. [2020-07-21 00:31:44,020 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 00:31:44,020 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 138 transitions. [2020-07-21 00:31:44,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2020-07-21 00:31:44,022 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:44,022 INFO L422 BasicCegarLoop]: trace histogram [19, 19, 11, 8, 7, 7, 7, 7, 7, 7, 7, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:44,236 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:44,237 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:44,237 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:44,237 INFO L82 PathProgramCache]: Analyzing trace with hash -1835077495, now seen corresponding path program 5 times [2020-07-21 00:31:44,237 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:44,238 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [189653513] [2020-07-21 00:31:44,238 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:44,334 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:31:44,334 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:44,336 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-21 00:31:44,343 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:44,445 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 475 proven. 114 refuted. 0 times theorem prover too weak. 246 trivial. 0 not checked. [2020-07-21 00:31:44,445 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:45,591 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:45,652 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:46,494 INFO L134 CoverageAnalysis]: Checked inductivity of 835 backedges. 155 proven. 295 refuted. 0 times theorem prover too weak. 385 trivial. 0 not checked. [2020-07-21 00:31:46,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [189653513] [2020-07-21 00:31:46,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:46,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 17] total 19 [2020-07-21 00:31:46,495 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442803079] [2020-07-21 00:31:46,496 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-07-21 00:31:46,496 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:46,496 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-07-21 00:31:46,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=284, Unknown=0, NotChecked=0, Total=342 [2020-07-21 00:31:46,497 INFO L87 Difference]: Start difference. First operand 82 states and 138 transitions. Second operand 19 states. [2020-07-21 00:31:47,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:47,028 INFO L93 Difference]: Finished difference Result 165 states and 311 transitions. [2020-07-21 00:31:47,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-07-21 00:31:47,031 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 134 [2020-07-21 00:31:47,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:47,033 INFO L225 Difference]: With dead ends: 165 [2020-07-21 00:31:47,034 INFO L226 Difference]: Without dead ends: 100 [2020-07-21 00:31:47,036 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 286 GetRequests, 232 SyntacticMatches, 18 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 299 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=312, Invalid=1094, Unknown=0, NotChecked=0, Total=1406 [2020-07-21 00:31:47,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2020-07-21 00:31:47,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 97. [2020-07-21 00:31:47,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 97 states. [2020-07-21 00:31:47,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 170 transitions. [2020-07-21 00:31:47,046 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 170 transitions. Word has length 134 [2020-07-21 00:31:47,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:47,047 INFO L479 AbstractCegarLoop]: Abstraction has 97 states and 170 transitions. [2020-07-21 00:31:47,047 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-07-21 00:31:47,047 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 170 transitions. [2020-07-21 00:31:47,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-07-21 00:31:47,049 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:47,049 INFO L422 BasicCegarLoop]: trace histogram [23, 23, 13, 10, 9, 9, 9, 9, 9, 9, 9, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:47,262 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:47,263 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:47,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:47,264 INFO L82 PathProgramCache]: Analyzing trace with hash -1434361927, now seen corresponding path program 6 times [2020-07-21 00:31:47,264 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:47,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [94303954] [2020-07-21 00:31:47,265 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:47,393 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:31:47,393 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:47,395 INFO L263 TraceCheckSpWp]: Trace formula consists of 358 conjuncts, 35 conjunts are in the unsatisfiable core [2020-07-21 00:31:47,398 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:47,597 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 421 proven. 286 refuted. 0 times theorem prover too weak. 539 trivial. 0 not checked. [2020-07-21 00:31:47,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:49,104 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:49,216 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:49,217 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:49,280 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:49,281 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:52,106 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 467 proven. 286 refuted. 0 times theorem prover too weak. 493 trivial. 0 not checked. [2020-07-21 00:31:52,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [94303954] [2020-07-21 00:31:52,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:52,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 27] total 33 [2020-07-21 00:31:52,107 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819055345] [2020-07-21 00:31:52,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 33 states [2020-07-21 00:31:52,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:52,108 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2020-07-21 00:31:52,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=139, Invalid=917, Unknown=0, NotChecked=0, Total=1056 [2020-07-21 00:31:52,109 INFO L87 Difference]: Start difference. First operand 97 states and 170 transitions. Second operand 33 states. [2020-07-21 00:31:53,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:31:53,339 INFO L93 Difference]: Finished difference Result 211 states and 413 transitions. [2020-07-21 00:31:53,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-21 00:31:53,340 INFO L78 Accepts]: Start accepts. Automaton has 33 states. Word has length 160 [2020-07-21 00:31:53,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:31:53,343 INFO L225 Difference]: With dead ends: 211 [2020-07-21 00:31:53,344 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 00:31:53,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 263 SyntacticMatches, 25 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1059 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=807, Invalid=3353, Unknown=0, NotChecked=0, Total=4160 [2020-07-21 00:31:53,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 00:31:53,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 121. [2020-07-21 00:31:53,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 121 states. [2020-07-21 00:31:53,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 221 transitions. [2020-07-21 00:31:53,368 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 221 transitions. Word has length 160 [2020-07-21 00:31:53,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:31:53,369 INFO L479 AbstractCegarLoop]: Abstraction has 121 states and 221 transitions. [2020-07-21 00:31:53,369 INFO L480 AbstractCegarLoop]: Interpolant automaton has 33 states. [2020-07-21 00:31:53,369 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 221 transitions. [2020-07-21 00:31:53,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-07-21 00:31:53,375 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:31:53,379 INFO L422 BasicCegarLoop]: trace histogram [25, 25, 14, 11, 10, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:31:53,593 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:53,594 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:31:53,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:31:53,594 INFO L82 PathProgramCache]: Analyzing trace with hash -66876812, now seen corresponding path program 7 times [2020-07-21 00:31:53,595 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:31:53,595 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1795193644] [2020-07-21 00:31:53,595 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:31:53,763 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:31:53,763 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:31:53,766 INFO L263 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 37 conjunts are in the unsatisfiable core [2020-07-21 00:31:53,770 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:31:54,020 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 477 proven. 372 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2020-07-21 00:31:54,020 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:31:55,830 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:55,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:56,011 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:56,117 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:56,118 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:56,181 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:31:59,039 INFO L134 CoverageAnalysis]: Checked inductivity of 1483 backedges. 525 proven. 384 refuted. 0 times theorem prover too weak. 574 trivial. 0 not checked. [2020-07-21 00:31:59,040 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1795193644] [2020-07-21 00:31:59,040 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:31:59,040 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 28] total 30 [2020-07-21 00:31:59,040 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50797043] [2020-07-21 00:31:59,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 30 states [2020-07-21 00:31:59,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:31:59,041 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2020-07-21 00:31:59,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=126, Invalid=744, Unknown=0, NotChecked=0, Total=870 [2020-07-21 00:31:59,042 INFO L87 Difference]: Start difference. First operand 121 states and 221 transitions. Second operand 30 states. [2020-07-21 00:32:00,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:00,135 INFO L93 Difference]: Finished difference Result 250 states and 509 transitions. [2020-07-21 00:32:00,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2020-07-21 00:32:00,136 INFO L78 Accepts]: Start accepts. Automaton has 30 states. Word has length 173 [2020-07-21 00:32:00,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:00,140 INFO L225 Difference]: With dead ends: 250 [2020-07-21 00:32:00,140 INFO L226 Difference]: Without dead ends: 146 [2020-07-21 00:32:00,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 380 GetRequests, 285 SyntacticMatches, 32 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1177 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=867, Invalid=3293, Unknown=0, NotChecked=0, Total=4160 [2020-07-21 00:32:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-21 00:32:00,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 136. [2020-07-21 00:32:00,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2020-07-21 00:32:00,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 257 transitions. [2020-07-21 00:32:00,159 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 257 transitions. Word has length 173 [2020-07-21 00:32:00,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:00,160 INFO L479 AbstractCegarLoop]: Abstraction has 136 states and 257 transitions. [2020-07-21 00:32:00,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 30 states. [2020-07-21 00:32:00,160 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 257 transitions. [2020-07-21 00:32:00,162 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-07-21 00:32:00,162 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:00,163 INFO L422 BasicCegarLoop]: trace histogram [27, 27, 15, 12, 11, 11, 11, 11, 11, 11, 11, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:00,375 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:00,376 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:00,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:00,376 INFO L82 PathProgramCache]: Analyzing trace with hash -1028004289, now seen corresponding path program 8 times [2020-07-21 00:32:00,376 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:00,378 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [929910394] [2020-07-21 00:32:00,379 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:00,625 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:32:00,626 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:00,629 INFO L263 TraceCheckSpWp]: Trace formula consists of 547 conjuncts, 79 conjunts are in the unsatisfiable core [2020-07-21 00:32:00,633 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:00,969 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 583 proven. 158 refuted. 0 times theorem prover too weak. 1000 trivial. 0 not checked. [2020-07-21 00:32:00,970 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:03,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1741 backedges. 597 proven. 189 refuted. 0 times theorem prover too weak. 955 trivial. 0 not checked. [2020-07-21 00:32:03,158 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [929910394] [2020-07-21 00:32:03,158 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:03,159 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 33] total 35 [2020-07-21 00:32:03,159 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126662210] [2020-07-21 00:32:03,159 INFO L459 AbstractCegarLoop]: Interpolant automaton has 35 states [2020-07-21 00:32:03,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:03,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2020-07-21 00:32:03,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=1105, Unknown=0, NotChecked=0, Total=1190 [2020-07-21 00:32:03,161 INFO L87 Difference]: Start difference. First operand 136 states and 257 transitions. Second operand 35 states. [2020-07-21 00:32:09,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:09,321 INFO L93 Difference]: Finished difference Result 284 states and 554 transitions. [2020-07-21 00:32:09,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2020-07-21 00:32:09,321 INFO L78 Accepts]: Start accepts. Automaton has 35 states. Word has length 186 [2020-07-21 00:32:09,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:09,327 INFO L225 Difference]: With dead ends: 284 [2020-07-21 00:32:09,327 INFO L226 Difference]: Without dead ends: 256 [2020-07-21 00:32:09,332 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 440 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2267 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=1228, Invalid=9484, Unknown=0, NotChecked=0, Total=10712 [2020-07-21 00:32:09,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2020-07-21 00:32:09,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 176. [2020-07-21 00:32:09,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176 states. [2020-07-21 00:32:09,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 367 transitions. [2020-07-21 00:32:09,362 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 367 transitions. Word has length 186 [2020-07-21 00:32:09,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:09,363 INFO L479 AbstractCegarLoop]: Abstraction has 176 states and 367 transitions. [2020-07-21 00:32:09,363 INFO L480 AbstractCegarLoop]: Interpolant automaton has 35 states. [2020-07-21 00:32:09,363 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 367 transitions. [2020-07-21 00:32:09,366 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-07-21 00:32:09,367 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:09,367 INFO L422 BasicCegarLoop]: trace histogram [29, 29, 16, 13, 12, 12, 12, 12, 12, 12, 12, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:09,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:09,581 INFO L427 AbstractCegarLoop]: === Iteration 11 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:09,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:09,581 INFO L82 PathProgramCache]: Analyzing trace with hash -2090243986, now seen corresponding path program 9 times [2020-07-21 00:32:09,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:09,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1857967837] [2020-07-21 00:32:09,582 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:09,812 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 3 check-sat command(s) [2020-07-21 00:32:09,813 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:09,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 446 conjuncts, 41 conjunts are in the unsatisfiable core [2020-07-21 00:32:09,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:10,181 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 647 proven. 519 refuted. 0 times theorem prover too weak. 854 trivial. 0 not checked. [2020-07-21 00:32:10,182 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:10,639 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:32:13,221 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:13,222 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:13,598 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:13,850 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:13,851 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,028 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,029 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,160 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,160 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,243 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:14,244 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:17,297 INFO L134 CoverageAnalysis]: Checked inductivity of 2020 backedges. 685 proven. 580 refuted. 0 times theorem prover too weak. 755 trivial. 0 not checked. [2020-07-21 00:32:17,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1857967837] [2020-07-21 00:32:17,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:17,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 32] total 34 [2020-07-21 00:32:17,298 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2064444400] [2020-07-21 00:32:17,299 INFO L459 AbstractCegarLoop]: Interpolant automaton has 34 states [2020-07-21 00:32:17,299 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:17,300 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2020-07-21 00:32:17,300 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=958, Unknown=0, NotChecked=0, Total=1122 [2020-07-21 00:32:17,300 INFO L87 Difference]: Start difference. First operand 176 states and 367 transitions. Second operand 34 states. [2020-07-21 00:32:18,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:18,704 INFO L93 Difference]: Finished difference Result 437 states and 1065 transitions. [2020-07-21 00:32:18,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-07-21 00:32:18,705 INFO L78 Accepts]: Start accepts. Automaton has 34 states. Word has length 199 [2020-07-21 00:32:18,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:18,712 INFO L225 Difference]: With dead ends: 437 [2020-07-21 00:32:18,713 INFO L226 Difference]: Without dead ends: 187 [2020-07-21 00:32:18,721 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 423 GetRequests, 329 SyntacticMatches, 36 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1023 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=685, Invalid=2855, Unknown=0, NotChecked=0, Total=3540 [2020-07-21 00:32:18,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2020-07-21 00:32:18,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 170. [2020-07-21 00:32:18,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-07-21 00:32:18,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 294 transitions. [2020-07-21 00:32:18,744 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 294 transitions. Word has length 199 [2020-07-21 00:32:18,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:18,747 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 294 transitions. [2020-07-21 00:32:18,748 INFO L480 AbstractCegarLoop]: Interpolant automaton has 34 states. [2020-07-21 00:32:18,748 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 294 transitions. [2020-07-21 00:32:18,751 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-07-21 00:32:18,751 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:18,751 INFO L422 BasicCegarLoop]: trace histogram [31, 31, 17, 14, 13, 13, 13, 13, 13, 13, 13, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:18,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:18,966 INFO L427 AbstractCegarLoop]: === Iteration 12 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:18,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:18,967 INFO L82 PathProgramCache]: Analyzing trace with hash 469178039, now seen corresponding path program 10 times [2020-07-21 00:32:18,967 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:18,968 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [153417901] [2020-07-21 00:32:18,968 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:19,244 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:32:19,245 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:19,247 INFO L263 TraceCheckSpWp]: Trace formula consists of 318 conjuncts, 25 conjunts are in the unsatisfiable core [2020-07-21 00:32:19,251 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:19,448 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 1340 proven. 196 refuted. 0 times theorem prover too weak. 784 trivial. 0 not checked. [2020-07-21 00:32:19,448 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:21,727 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:21,728 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:21,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:22,001 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:22,002 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:22,093 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:22,094 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:23,055 INFO L134 CoverageAnalysis]: Checked inductivity of 2320 backedges. 274 proven. 806 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2020-07-21 00:32:23,056 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [153417901] [2020-07-21 00:32:23,056 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:23,056 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 21] total 23 [2020-07-21 00:32:23,056 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046441336] [2020-07-21 00:32:23,057 INFO L459 AbstractCegarLoop]: Interpolant automaton has 23 states [2020-07-21 00:32:23,057 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:23,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2020-07-21 00:32:23,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=420, Unknown=0, NotChecked=0, Total=506 [2020-07-21 00:32:23,058 INFO L87 Difference]: Start difference. First operand 170 states and 294 transitions. Second operand 23 states. [2020-07-21 00:32:23,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:23,878 INFO L93 Difference]: Finished difference Result 324 states and 618 transitions. [2020-07-21 00:32:23,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-07-21 00:32:23,879 INFO L78 Accepts]: Start accepts. Automaton has 23 states. Word has length 212 [2020-07-21 00:32:23,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:23,884 INFO L225 Difference]: With dead ends: 324 [2020-07-21 00:32:23,884 INFO L226 Difference]: Without dead ends: 171 [2020-07-21 00:32:23,890 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 439 GetRequests, 380 SyntacticMatches, 22 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=311, Invalid=1171, Unknown=0, NotChecked=0, Total=1482 [2020-07-21 00:32:23,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 171 states. [2020-07-21 00:32:23,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 171 to 170. [2020-07-21 00:32:23,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 170 states. [2020-07-21 00:32:23,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 170 states to 170 states and 291 transitions. [2020-07-21 00:32:23,918 INFO L78 Accepts]: Start accepts. Automaton has 170 states and 291 transitions. Word has length 212 [2020-07-21 00:32:23,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:23,919 INFO L479 AbstractCegarLoop]: Abstraction has 170 states and 291 transitions. [2020-07-21 00:32:23,919 INFO L480 AbstractCegarLoop]: Interpolant automaton has 23 states. [2020-07-21 00:32:23,919 INFO L276 IsEmpty]: Start isEmpty. Operand 170 states and 291 transitions. [2020-07-21 00:32:23,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 285 [2020-07-21 00:32:23,928 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:23,928 INFO L422 BasicCegarLoop]: trace histogram [42, 42, 23, 19, 18, 18, 18, 18, 18, 18, 18, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:24,141 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:24,142 INFO L427 AbstractCegarLoop]: === Iteration 13 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:24,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:24,143 INFO L82 PathProgramCache]: Analyzing trace with hash -1239024914, now seen corresponding path program 11 times [2020-07-21 00:32:24,143 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:24,143 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115533267] [2020-07-21 00:32:24,143 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:24,524 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 4 check-sat command(s) [2020-07-21 00:32:24,524 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:24,526 INFO L263 TraceCheckSpWp]: Trace formula consists of 833 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-21 00:32:24,530 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:24,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 234 proven. 507 refuted. 0 times theorem prover too weak. 3588 trivial. 0 not checked. [2020-07-21 00:32:24,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:25,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,448 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,744 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,745 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,895 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,896 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:25,983 INFO L134 CoverageAnalysis]: Checked inductivity of 4329 backedges. 234 proven. 522 refuted. 0 times theorem prover too weak. 3573 trivial. 0 not checked. [2020-07-21 00:32:25,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115533267] [2020-07-21 00:32:25,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:25,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 11] total 12 [2020-07-21 00:32:25,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094432576] [2020-07-21 00:32:25,984 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-21 00:32:25,984 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:25,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-21 00:32:25,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2020-07-21 00:32:25,985 INFO L87 Difference]: Start difference. First operand 170 states and 291 transitions. Second operand 12 states. [2020-07-21 00:32:26,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:26,159 INFO L93 Difference]: Finished difference Result 174 states and 294 transitions. [2020-07-21 00:32:26,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-21 00:32:26,160 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 284 [2020-07-21 00:32:26,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:26,163 INFO L225 Difference]: With dead ends: 174 [2020-07-21 00:32:26,163 INFO L226 Difference]: Without dead ends: 170 [2020-07-21 00:32:26,165 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 571 GetRequests, 548 SyntacticMatches, 9 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=155, Unknown=0, NotChecked=0, Total=240 [2020-07-21 00:32:26,165 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2020-07-21 00:32:26,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 158. [2020-07-21 00:32:26,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 158 states. [2020-07-21 00:32:26,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 158 states to 158 states and 251 transitions. [2020-07-21 00:32:26,185 INFO L78 Accepts]: Start accepts. Automaton has 158 states and 251 transitions. Word has length 284 [2020-07-21 00:32:26,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:26,185 INFO L479 AbstractCegarLoop]: Abstraction has 158 states and 251 transitions. [2020-07-21 00:32:26,185 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-21 00:32:26,186 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 251 transitions. [2020-07-21 00:32:26,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-07-21 00:32:26,190 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:26,190 INFO L422 BasicCegarLoop]: trace histogram [41, 41, 23, 18, 17, 17, 17, 17, 17, 17, 17, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:26,404 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:26,405 INFO L427 AbstractCegarLoop]: === Iteration 14 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:26,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:26,405 INFO L82 PathProgramCache]: Analyzing trace with hash -240688111, now seen corresponding path program 12 times [2020-07-21 00:32:26,406 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:26,406 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1687915629] [2020-07-21 00:32:26,406 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:26,737 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:32:26,737 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:26,739 INFO L263 TraceCheckSpWp]: Trace formula consists of 417 conjuncts, 39 conjunts are in the unsatisfiable core [2020-07-21 00:32:26,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:27,040 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 2428 proven. 401 refuted. 0 times theorem prover too weak. 1278 trivial. 0 not checked. [2020-07-21 00:32:27,040 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:31,386 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:31,572 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:31,573 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:31,708 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:31,802 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:31,803 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:36,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4107 backedges. 700 proven. 1204 refuted. 0 times theorem prover too weak. 2203 trivial. 0 not checked. [2020-07-21 00:32:36,550 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1687915629] [2020-07-21 00:32:36,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:36,550 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 29] total 31 [2020-07-21 00:32:36,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099717074] [2020-07-21 00:32:36,551 INFO L459 AbstractCegarLoop]: Interpolant automaton has 31 states [2020-07-21 00:32:36,551 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:36,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2020-07-21 00:32:36,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=129, Invalid=801, Unknown=0, NotChecked=0, Total=930 [2020-07-21 00:32:36,552 INFO L87 Difference]: Start difference. First operand 158 states and 251 transitions. Second operand 31 states. [2020-07-21 00:32:37,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:37,722 INFO L93 Difference]: Finished difference Result 294 states and 514 transitions. [2020-07-21 00:32:37,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-07-21 00:32:37,725 INFO L78 Accepts]: Start accepts. Automaton has 31 states. Word has length 278 [2020-07-21 00:32:37,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:37,727 INFO L225 Difference]: With dead ends: 294 [2020-07-21 00:32:37,727 INFO L226 Difference]: Without dead ends: 153 [2020-07-21 00:32:37,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 587 GetRequests, 492 SyntacticMatches, 34 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1174 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=794, Invalid=3112, Unknown=0, NotChecked=0, Total=3906 [2020-07-21 00:32:37,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 153 states. [2020-07-21 00:32:37,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 153 to 153. [2020-07-21 00:32:37,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 153 states. [2020-07-21 00:32:37,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 153 states to 153 states and 233 transitions. [2020-07-21 00:32:37,745 INFO L78 Accepts]: Start accepts. Automaton has 153 states and 233 transitions. Word has length 278 [2020-07-21 00:32:37,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:37,745 INFO L479 AbstractCegarLoop]: Abstraction has 153 states and 233 transitions. [2020-07-21 00:32:37,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 31 states. [2020-07-21 00:32:37,746 INFO L276 IsEmpty]: Start isEmpty. Operand 153 states and 233 transitions. [2020-07-21 00:32:37,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-07-21 00:32:37,748 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:37,748 INFO L422 BasicCegarLoop]: trace histogram [43, 43, 24, 19, 18, 18, 18, 18, 18, 18, 18, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:37,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:37,963 INFO L427 AbstractCegarLoop]: === Iteration 15 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:37,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:37,964 INFO L82 PathProgramCache]: Analyzing trace with hash -1137736678, now seen corresponding path program 13 times [2020-07-21 00:32:37,964 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:37,965 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1554498338] [2020-07-21 00:32:37,965 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:38,397 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:32:38,397 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:38,399 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 28 conjunts are in the unsatisfiable core [2020-07-21 00:32:38,408 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:38,532 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 2560 proven. 561 refuted. 0 times theorem prover too weak. 1409 trivial. 0 not checked. [2020-07-21 00:32:38,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:42,542 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:42,934 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,193 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,194 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,352 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,353 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:43,504 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:44,543 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:44,892 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:45,033 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:45,134 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:45,167 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:32:45,280 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 633 proven. 1449 refuted. 0 times theorem prover too weak. 2448 trivial. 0 not checked. [2020-07-21 00:32:45,281 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1554498338] [2020-07-21 00:32:45,281 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:32:45,281 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 15] total 17 [2020-07-21 00:32:45,281 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [855589135] [2020-07-21 00:32:45,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-07-21 00:32:45,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:32:45,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-07-21 00:32:45,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=213, Unknown=0, NotChecked=0, Total=272 [2020-07-21 00:32:45,282 INFO L87 Difference]: Start difference. First operand 153 states and 233 transitions. Second operand 17 states. [2020-07-21 00:32:45,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:32:45,839 INFO L93 Difference]: Finished difference Result 288 states and 517 transitions. [2020-07-21 00:32:45,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-07-21 00:32:45,841 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 291 [2020-07-21 00:32:45,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:32:45,844 INFO L225 Difference]: With dead ends: 288 [2020-07-21 00:32:45,845 INFO L226 Difference]: Without dead ends: 151 [2020-07-21 00:32:45,849 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 589 GetRequests, 539 SyntacticMatches, 27 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=170, Invalid=430, Unknown=0, NotChecked=0, Total=600 [2020-07-21 00:32:45,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2020-07-21 00:32:45,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2020-07-21 00:32:45,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 151 states. [2020-07-21 00:32:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 211 transitions. [2020-07-21 00:32:45,865 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 211 transitions. Word has length 291 [2020-07-21 00:32:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:32:45,865 INFO L479 AbstractCegarLoop]: Abstraction has 151 states and 211 transitions. [2020-07-21 00:32:45,865 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-07-21 00:32:45,866 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 211 transitions. [2020-07-21 00:32:45,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2020-07-21 00:32:45,885 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:32:45,886 INFO L422 BasicCegarLoop]: trace histogram [161, 161, 89, 72, 71, 71, 71, 71, 71, 71, 71, 18, 18, 18, 18, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:32:46,099 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:46,100 INFO L427 AbstractCegarLoop]: === Iteration 16 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:32:46,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:32:46,101 INFO L82 PathProgramCache]: Analyzing trace with hash -1792967769, now seen corresponding path program 14 times [2020-07-21 00:32:46,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:32:46,102 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [920588922] [2020-07-21 00:32:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:32:46,754 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:32:46,754 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:32:46,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 1562 conjuncts, 53 conjunts are in the unsatisfiable core [2020-07-21 00:32:46,777 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:32:47,796 INFO L134 CoverageAnalysis]: Checked inductivity of 65682 backedges. 33144 proven. 777 refuted. 0 times theorem prover too weak. 31761 trivial. 0 not checked. [2020-07-21 00:32:47,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:32:49,055 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:49,161 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:49,326 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:49,454 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:49,592 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:49,727 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:49,869 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:50,033 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:50,178 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:32:50,322 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:32:54,985 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:32:55,090 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:32:55,199 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:55,307 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:55,478 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:55,611 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:55,761 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:55,904 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:56,049 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:56,205 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:56,358 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:32:56,511 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:32:58,483 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:32:58,595 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:32:58,716 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:58,835 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:32:59,010 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:59,146 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:32:59,280 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:59,413 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:32:59,586 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:59,722 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:32:59,863 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:00,026 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:02,330 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:02,439 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:02,553 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:02,668 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:02,851 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:02,989 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:03,134 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:03,276 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:03,432 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:03,583 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:03,751 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:03,907 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:06,171 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:06,274 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:06,387 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:06,497 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:06,673 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:06,811 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:06,957 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:07,102 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:07,252 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:07,404 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:07,565 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:07,726 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:10,228 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:10,788 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:10,789 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,145 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,146 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,400 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,401 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,582 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,583 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:11,705 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:33:12,954 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:13,067 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:13,187 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:13,309 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:13,498 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:13,646 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:13,798 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:13,953 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:14,112 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:14,269 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:33:14,431 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:14,594 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:33:15,761 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:15,880 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:16,009 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:16,141 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:16,365 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:16,554 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:16,712 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:16,874 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:18,351 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:18,475 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:18,606 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:18,730 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:23,024 INFO L134 CoverageAnalysis]: Checked inductivity of 65682 backedges. 3952 proven. 9399 refuted. 0 times theorem prover too weak. 52331 trivial. 0 not checked. [2020-07-21 00:33:23,025 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [920588922] [2020-07-21 00:33:23,025 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:33:23,025 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 40] total 42 [2020-07-21 00:33:23,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837600188] [2020-07-21 00:33:23,027 INFO L459 AbstractCegarLoop]: Interpolant automaton has 42 states [2020-07-21 00:33:23,027 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:33:23,028 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2020-07-21 00:33:23,028 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=225, Invalid=1497, Unknown=0, NotChecked=0, Total=1722 [2020-07-21 00:33:23,029 INFO L87 Difference]: Start difference. First operand 151 states and 211 transitions. Second operand 42 states. [2020-07-21 00:33:25,867 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:33:25,867 INFO L93 Difference]: Finished difference Result 301 states and 488 transitions. [2020-07-21 00:33:25,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2020-07-21 00:33:25,870 INFO L78 Accepts]: Start accepts. Automaton has 42 states. Word has length 1064 [2020-07-21 00:33:25,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:33:25,874 INFO L225 Difference]: With dead ends: 301 [2020-07-21 00:33:25,875 INFO L226 Difference]: Without dead ends: 167 [2020-07-21 00:33:25,879 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2171 GetRequests, 2041 SyntacticMatches, 46 SemanticMatches, 84 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2390 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=1425, Invalid=5885, Unknown=0, NotChecked=0, Total=7310 [2020-07-21 00:33:25,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2020-07-21 00:33:25,892 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2020-07-21 00:33:25,892 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 167 states. [2020-07-21 00:33:25,895 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 225 transitions. [2020-07-21 00:33:25,896 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 225 transitions. Word has length 1064 [2020-07-21 00:33:25,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:33:25,897 INFO L479 AbstractCegarLoop]: Abstraction has 167 states and 225 transitions. [2020-07-21 00:33:25,897 INFO L480 AbstractCegarLoop]: Interpolant automaton has 42 states. [2020-07-21 00:33:25,897 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 225 transitions. [2020-07-21 00:33:25,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1365 [2020-07-21 00:33:25,916 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:33:25,917 INFO L422 BasicCegarLoop]: trace histogram [207, 207, 113, 94, 93, 93, 93, 93, 93, 93, 93, 20, 20, 20, 20, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:33:26,130 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:33:26,131 INFO L427 AbstractCegarLoop]: === Iteration 17 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:33:26,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:33:26,131 INFO L82 PathProgramCache]: Analyzing trace with hash 374059961, now seen corresponding path program 15 times [2020-07-21 00:33:26,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:33:26,132 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1529209960] [2020-07-21 00:33:26,132 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:33:27,084 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:33:27,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:33:27,091 INFO L263 TraceCheckSpWp]: Trace formula consists of 2000 conjuncts, 67 conjunts are in the unsatisfiable core [2020-07-21 00:33:27,108 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:33:28,901 INFO L134 CoverageAnalysis]: Checked inductivity of 109104 backedges. 55698 proven. 1160 refuted. 0 times theorem prover too weak. 52246 trivial. 0 not checked. [2020-07-21 00:33:28,901 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:33:29,947 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:33:30,048 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:33:30,187 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:33:30,455 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:30,577 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:30,715 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:30,854 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:31,091 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:31,255 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:31,426 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:31,604 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:31,854 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:32,055 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:32,277 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:32,498 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:32,783 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:33,020 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:33,275 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:33,520 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:33,815 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:34,069 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:34,332 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:33:34,584 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:33:44,895 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:33:45,007 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:33:45,285 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:45,419 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:45,556 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:45,686 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:45,902 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:46,072 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:46,254 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:46,442 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:46,712 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:46,935 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:47,170 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:47,396 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:47,722 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:48,006 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:48,277 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:48,543 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:48,822 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:49,097 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:49,434 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:33:49,738 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:33:52,545 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:33:52,649 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:33:52,754 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:33:52,950 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:53,092 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:33:53,238 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:53,381 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:33:53,619 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:53,805 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:33:54,003 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:54,195 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:33:54,477 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:54,719 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:33:54,954 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:55,183 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:33:55,502 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:55,776 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:33:56,054 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:56,348 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:33:56,695 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:56,981 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:33:57,262 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:33:57,562 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:34:01,269 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:01,437 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:01,560 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:01,679 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:01,908 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:02,064 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:02,224 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:02,392 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:02,661 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:02,887 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:03,102 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:03,332 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:03,660 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:03,900 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:04,148 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:04,390 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:04,756 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:05,063 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:05,318 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:05,550 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:05,785 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:34:06,022 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:34:06,260 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:34:06,505 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:34:11,698 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:11,699 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:12,891 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:12,893 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:13,827 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:14,467 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:14,869 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:15,150 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:15,151 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:15,345 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:15,345 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:34:16,697 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:16,811 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:16,925 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:17,050 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:17,250 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:17,395 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:17,549 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:17,696 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:17,952 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:18,135 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:18,333 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:18,530 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:18,834 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:19,072 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:19,320 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:19,564 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:19,908 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:20,185 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:20,507 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:20,841 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:21,153 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:34:21,459 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:34:21,789 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:34:22,111 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:34:23,454 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:23,582 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:23,716 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:23,851 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:24,098 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:24,267 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:24,442 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:24,610 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:24,892 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:25,106 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:25,334 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:25,541 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:25,865 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:26,125 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:26,434 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:26,695 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:27,070 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:27,376 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:34:27,687 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:27,988 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:34:29,575 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:29,694 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:29,815 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:29,938 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:30,218 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:30,381 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:30,549 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:30,714 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:30,988 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:31,188 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:31,401 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:31,615 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:31,986 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:32,235 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:34:32,490 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:32,736 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:34:34,216 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:34,343 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:34,475 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:34,601 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:34,836 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:35,000 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:35,173 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:35,344 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:35,636 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:35,845 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:34:36,070 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:36,296 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:34:37,697 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:34:37,802 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:34:38,018 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:38,152 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:38,293 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:38,451 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:38,745 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:38,928 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:34:39,117 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:39,301 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:34:40,444 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:34:40,645 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:34:40,962 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:41,093 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:34:41,242 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:41,442 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:34:48,070 INFO L134 CoverageAnalysis]: Checked inductivity of 109104 backedges. 5914 proven. 14348 refuted. 0 times theorem prover too weak. 88842 trivial. 0 not checked. [2020-07-21 00:34:48,071 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1529209960] [2020-07-21 00:34:48,072 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:34:48,072 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [36, 51] total 57 [2020-07-21 00:34:48,072 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833435718] [2020-07-21 00:34:48,074 INFO L459 AbstractCegarLoop]: Interpolant automaton has 57 states [2020-07-21 00:34:48,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:34:48,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2020-07-21 00:34:48,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=369, Invalid=2823, Unknown=0, NotChecked=0, Total=3192 [2020-07-21 00:34:48,076 INFO L87 Difference]: Start difference. First operand 167 states and 225 transitions. Second operand 57 states. [2020-07-21 00:34:55,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:34:55,651 INFO L93 Difference]: Finished difference Result 332 states and 501 transitions. [2020-07-21 00:34:55,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 60 states. [2020-07-21 00:34:55,655 INFO L78 Accepts]: Start accepts. Automaton has 57 states. Word has length 1364 [2020-07-21 00:34:55,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:34:55,659 INFO L225 Difference]: With dead ends: 332 [2020-07-21 00:34:55,660 INFO L226 Difference]: Without dead ends: 182 [2020-07-21 00:34:55,666 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 2783 GetRequests, 2619 SyntacticMatches, 53 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4194 ImplicationChecksByTransitivity, 9.0s TimeCoverageRelationStatistics Valid=2307, Invalid=10349, Unknown=0, NotChecked=0, Total=12656 [2020-07-21 00:34:55,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2020-07-21 00:34:55,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 182. [2020-07-21 00:34:55,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 182 states. [2020-07-21 00:34:55,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 247 transitions. [2020-07-21 00:34:55,683 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 247 transitions. Word has length 1364 [2020-07-21 00:34:55,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:34:55,684 INFO L479 AbstractCegarLoop]: Abstraction has 182 states and 247 transitions. [2020-07-21 00:34:55,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 57 states. [2020-07-21 00:34:55,684 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 247 transitions. [2020-07-21 00:34:55,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1567 [2020-07-21 00:34:55,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:34:55,710 INFO L422 BasicCegarLoop]: trace histogram [238, 238, 129, 109, 108, 108, 108, 108, 108, 108, 108, 21, 21, 21, 21, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:34:55,923 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:34:55,924 INFO L427 AbstractCegarLoop]: === Iteration 18 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:34:55,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:34:55,926 INFO L82 PathProgramCache]: Analyzing trace with hash -753676502, now seen corresponding path program 16 times [2020-07-21 00:34:55,926 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:34:55,926 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [858923849] [2020-07-21 00:34:55,926 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:34:57,291 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:34:57,291 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:34:57,299 INFO L263 TraceCheckSpWp]: Trace formula consists of 2295 conjuncts, 69 conjunts are in the unsatisfiable core [2020-07-21 00:34:57,318 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:35:00,061 INFO L134 CoverageAnalysis]: Checked inductivity of 144600 backedges. 69098 proven. 1330 refuted. 0 times theorem prover too weak. 74172 trivial. 0 not checked. [2020-07-21 00:35:00,061 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:35:01,383 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:35:01,584 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:35:01,901 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:02,089 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:02,235 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:02,378 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:02,636 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:02,826 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:03,027 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:03,225 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:03,555 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:03,800 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:04,062 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:04,317 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:04,715 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:05,007 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:05,319 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:05,620 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:06,057 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:06,400 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:06,753 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:07,135 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:07,509 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:07,869 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:08,229 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:08,582 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:10,404 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:10,531 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:10,664 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:10,769 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:10,904 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:35:11,018 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:35:35,772 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:35:35,890 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:35:36,015 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:35:36,150 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:35:36,407 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:36,565 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:36,725 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:36,885 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:37,208 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:37,423 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:37,644 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:37,867 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:38,232 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:38,494 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:38,754 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:39,015 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:39,417 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:39,728 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:40,050 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:40,377 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:40,841 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:41,219 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:41,594 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:41,959 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:42,352 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:42,737 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:43,127 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:43,494 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:45,147 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:35:45,281 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:35:45,390 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:35:45,510 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:45,630 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:45,776 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:45,902 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:46,034 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:35:46,175 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:35:48,086 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:35:48,209 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:35:48,328 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:35:48,438 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:35:48,685 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:48,834 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:35:48,994 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:49,155 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:35:49,453 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:49,692 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:35:49,911 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:50,131 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:35:50,491 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:50,759 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:35:51,035 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:51,324 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:35:51,761 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:52,091 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:35:52,443 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:52,802 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:35:53,318 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:53,728 WARN L193 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:35:54,146 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:54,546 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:35:54,972 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:55,380 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:35:55,800 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:56,229 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:35:56,429 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-07-21 00:35:57,945 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:35:58,049 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:35:58,162 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:35:58,276 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:35:58,419 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:35:58,535 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:35:58,658 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:58,779 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:35:58,939 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:59,070 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:35:59,207 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:35:59,354 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:36:03,031 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:36:03,355 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:03,487 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:03,628 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:03,770 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:04,061 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:04,220 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:04,412 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:04,607 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:04,942 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:05,183 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:05,437 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:05,683 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:06,089 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:06,374 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:06,661 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:06,967 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:07,423 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:07,763 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:08,131 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:08,484 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:09,024 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:09,447 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:09,881 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:10,322 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:10,757 WARN L193 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:36:11,182 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:36:11,649 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:36:12,108 WARN L193 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:36:13,916 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:14,025 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:14,145 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:14,257 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:14,406 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:14,525 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:14,655 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:14,787 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:14,952 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:36:15,096 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:36:15,239 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:36:15,398 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:36:16,979 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:36:17,083 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:36:17,225 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:17,476 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:17,604 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:17,744 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:17,876 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:18,013 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:18,151 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:18,321 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:36:18,467 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:36:18,602 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:36:18,738 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:36:18,883 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2020-07-21 00:36:19,020 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2020-07-21 00:36:19,151 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-21 00:36:19,283 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:19,400 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 00:36:19,520 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:21,737 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:21,846 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:21,962 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:22,100 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:22,228 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:36:22,354 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:22,480 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:36:22,597 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-21 00:36:22,705 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-21 00:36:23,285 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:25,050 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:25,153 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:36:25,263 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:25,374 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:36:25,480 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-07-21 00:36:25,831 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:25,832 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:27,165 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:27,166 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:28,444 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:28,446 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:28,789 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2020-07-21 00:36:29,630 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:29,631 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:30,427 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:30,969 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:30,970 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:31,336 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:31,336 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:36:33,159 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:33,280 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:33,412 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:33,553 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:33,833 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:34,001 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:34,181 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:34,372 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:34,710 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:34,936 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:35,166 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:35,399 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:35,791 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:36,065 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:36,347 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:36,637 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:37,092 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:37,415 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:37,773 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:38,108 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:38,640 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:39,022 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:39,426 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:39,821 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:40,241 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:36:40,674 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification that was a NOOP. DAG size: 108 [2020-07-21 00:36:41,096 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:36:41,519 WARN L193 SmtUtils]: Spent 420.00 ms on a formula simplification that was a NOOP. DAG size: 110 [2020-07-21 00:36:42,677 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:42,803 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:42,939 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:43,094 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:43,366 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:43,542 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:43,716 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:43,913 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:44,232 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:44,452 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:44,682 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:44,898 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:45,276 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:45,556 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:45,834 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:46,108 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:46,576 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:46,899 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:47,244 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:47,704 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:48,243 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:48,632 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:36:49,038 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:49,439 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:36:51,100 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:51,226 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:51,363 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:51,492 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:51,785 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:51,957 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:52,139 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:52,330 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:52,662 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:52,895 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:36:53,132 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:53,370 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:36:53,771 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:54,068 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:36:54,388 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:54,786 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:36:55,301 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:55,739 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:36:56,131 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:56,572 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:36:58,339 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:58,469 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:36:58,610 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:58,744 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:36:59,045 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:59,227 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:36:59,420 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:36:59,623 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:00,000 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:00,247 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:00,487 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:00,731 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:01,140 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:37:01,450 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:37:01,795 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:37:02,109 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:37:03,493 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:37:03,622 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:37:03,975 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:04,168 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:04,379 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:04,573 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:04,998 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:05,179 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:05,373 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:05,554 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:05,901 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:06,123 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:06,364 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:06,618 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:08,245 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:08,373 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:08,527 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:08,670 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:08,963 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:09,134 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:09,321 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:09,502 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:11,093 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:11,221 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:11,355 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:11,497 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:19,838 INFO L134 CoverageAnalysis]: Checked inductivity of 144600 backedges. 6306 proven. 18405 refuted. 0 times theorem prover too weak. 119889 trivial. 0 not checked. [2020-07-21 00:37:19,839 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [858923849] [2020-07-21 00:37:19,839 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:37:19,839 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 52] total 54 [2020-07-21 00:37:19,840 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331226115] [2020-07-21 00:37:19,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 54 states [2020-07-21 00:37:19,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:37:19,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2020-07-21 00:37:19,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=352, Invalid=2510, Unknown=0, NotChecked=0, Total=2862 [2020-07-21 00:37:19,844 INFO L87 Difference]: Start difference. First operand 182 states and 247 transitions. Second operand 54 states. [2020-07-21 00:37:30,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:37:30,556 INFO L93 Difference]: Finished difference Result 362 states and 554 transitions. [2020-07-21 00:37:30,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-07-21 00:37:30,568 INFO L78 Accepts]: Start accepts. Automaton has 54 states. Word has length 1566 [2020-07-21 00:37:30,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:37:30,572 INFO L225 Difference]: With dead ends: 362 [2020-07-21 00:37:30,573 INFO L226 Difference]: Without dead ends: 197 [2020-07-21 00:37:30,579 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3190 GetRequests, 3019 SyntacticMatches, 60 SemanticMatches, 111 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4419 ImplicationChecksByTransitivity, 13.2s TimeCoverageRelationStatistics Valid=2415, Invalid=10241, Unknown=0, NotChecked=0, Total=12656 [2020-07-21 00:37:30,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2020-07-21 00:37:30,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 197. [2020-07-21 00:37:30,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 197 states. [2020-07-21 00:37:30,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 269 transitions. [2020-07-21 00:37:30,603 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 269 transitions. Word has length 1566 [2020-07-21 00:37:30,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:37:30,604 INFO L479 AbstractCegarLoop]: Abstraction has 197 states and 269 transitions. [2020-07-21 00:37:30,604 INFO L480 AbstractCegarLoop]: Interpolant automaton has 54 states. [2020-07-21 00:37:30,604 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 269 transitions. [2020-07-21 00:37:30,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1795 [2020-07-21 00:37:30,645 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:37:30,646 INFO L422 BasicCegarLoop]: trace histogram [273, 273, 147, 126, 125, 125, 125, 125, 125, 125, 125, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:37:30,862 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:37:30,863 INFO L427 AbstractCegarLoop]: === Iteration 19 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:37:30,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:37:30,863 INFO L82 PathProgramCache]: Analyzing trace with hash 665410911, now seen corresponding path program 17 times [2020-07-21 00:37:30,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:37:30,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558590181] [2020-07-21 00:37:30,864 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:37:32,690 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 2 check-sat command(s) [2020-07-21 00:37:32,691 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:37:32,708 INFO L263 TraceCheckSpWp]: Trace formula consists of 2630 conjuncts, 83 conjunts are in the unsatisfiable core [2020-07-21 00:37:32,739 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:37:38,479 INFO L134 CoverageAnalysis]: Checked inductivity of 190705 backedges. 97097 proven. 1819 refuted. 0 times theorem prover too weak. 91789 trivial. 0 not checked. [2020-07-21 00:37:38,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:37:40,788 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:40,912 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:37:41,060 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:41,195 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:37:41,494 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:41,671 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:37:41,864 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:42,053 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:37:42,403 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:42,636 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:37:42,892 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:43,153 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:37:43,568 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:37:43,869 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:37:44,182 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:37:44,494 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:37:44,983 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:37:45,351 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:37:45,739 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:37:46,131 WARN L193 SmtUtils]: Spent 387.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:37:46,728 WARN L193 SmtUtils]: Spent 462.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:37:47,266 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:37:47,740 WARN L193 SmtUtils]: Spent 469.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:37:48,208 WARN L193 SmtUtils]: Spent 465.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:37:48,859 WARN L193 SmtUtils]: Spent 514.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:37:49,379 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:37:49,910 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:37:50,449 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:37:51,160 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:37:51,756 WARN L193 SmtUtils]: Spent 592.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:37:52,371 WARN L193 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:37:52,965 WARN L193 SmtUtils]: Spent 590.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:37:53,605 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:37:54,215 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:37:54,843 WARN L193 SmtUtils]: Spent 623.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:37:55,630 WARN L193 SmtUtils]: Spent 784.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:37:56,840 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:37:56,966 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:37:57,138 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:37:57,266 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:37:57,395 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:37:57,538 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:37:57,735 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:37:57,895 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:37:58,021 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:37:58,126 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:37:58,272 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:37:58,385 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:37:58,503 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:37:58,631 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:37:58,784 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:37:58,915 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:37:59,063 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:37:59,208 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:37:59,383 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:37:59,528 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:37:59,695 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:37:59,855 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:38:00,050 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:38:00,217 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:38:00,446 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:38:00,709 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:38:52,664 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:38:52,804 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:38:52,951 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:38:53,106 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:38:53,435 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:38:53,627 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:38:53,949 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:38:54,155 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:38:54,538 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:38:54,795 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:38:55,061 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:38:55,324 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:38:55,778 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:38:56,098 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:38:56,428 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:38:56,761 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:38:57,291 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:38:57,685 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:38:58,102 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:38:58,522 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:38:59,149 WARN L193 SmtUtils]: Spent 480.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:38:59,624 WARN L193 SmtUtils]: Spent 471.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:39:00,107 WARN L193 SmtUtils]: Spent 476.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:39:00,580 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:39:01,252 WARN L193 SmtUtils]: Spent 533.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:39:01,779 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:39:02,329 WARN L193 SmtUtils]: Spent 543.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:39:02,868 WARN L193 SmtUtils]: Spent 536.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:39:03,623 WARN L193 SmtUtils]: Spent 611.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:39:04,233 WARN L193 SmtUtils]: Spent 606.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:39:04,842 WARN L193 SmtUtils]: Spent 604.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:39:05,456 WARN L193 SmtUtils]: Spent 610.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:39:06,091 WARN L193 SmtUtils]: Spent 627.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:39:06,714 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:39:07,362 WARN L193 SmtUtils]: Spent 642.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:39:08,019 WARN L193 SmtUtils]: Spent 652.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:39:08,901 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 00:39:09,009 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 00:39:09,134 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:39:09,256 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:39:09,428 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:39:09,549 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:39:09,704 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:09,854 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:10,045 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:10,214 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:10,377 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:10,547 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:10,786 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:10,967 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:11,156 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:11,357 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:11,614 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:11,827 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:12,035 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:12,264 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:12,551 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:12,792 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:13,043 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:13,293 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:13,600 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:13,873 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:14,150 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:14,354 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:16,397 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:39:16,502 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:39:16,810 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:39:16,978 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:39:17,148 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:39:17,344 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:39:17,882 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:18,203 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:18,544 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:18,876 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:19,482 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:39:19,883 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:39:20,304 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:39:20,727 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:39:21,447 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:39:21,957 WARN L193 SmtUtils]: Spent 504.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:39:22,466 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:39:22,970 WARN L193 SmtUtils]: Spent 499.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:39:23,781 WARN L193 SmtUtils]: Spent 580.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:39:24,385 WARN L193 SmtUtils]: Spent 599.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:39:25,017 WARN L193 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:39:25,618 WARN L193 SmtUtils]: Spent 595.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:39:26,545 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:39:27,061 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:39:27,530 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:39:27,996 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:39:28,667 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:39:29,200 WARN L193 SmtUtils]: Spent 528.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:39:29,758 WARN L193 SmtUtils]: Spent 551.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:39:30,315 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:39:31,066 WARN L193 SmtUtils]: Spent 609.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:39:31,689 WARN L193 SmtUtils]: Spent 619.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:39:32,332 WARN L193 SmtUtils]: Spent 637.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:39:32,981 WARN L193 SmtUtils]: Spent 645.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:39:33,695 WARN L193 SmtUtils]: Spent 704.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:39:34,495 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:39:35,180 WARN L193 SmtUtils]: Spent 678.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:39:35,885 WARN L193 SmtUtils]: Spent 700.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:39:37,222 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:37,459 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:37,572 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:37,697 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:37,815 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:37,972 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:38,104 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:38,244 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:38,381 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:38,557 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:38,698 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:38,854 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:39,010 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:39,205 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:39,376 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:39,550 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:39,727 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:39,934 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:40,118 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:40,312 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:40,508 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:41,864 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:42,102 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:42,212 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:42,333 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:42,450 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:42,612 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:42,736 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:42,872 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:43,008 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:43,181 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:43,327 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:43,478 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:43,633 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:43,826 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:43,984 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:44,159 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:44,330 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:44,539 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:44,716 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:44,910 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:45,109 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:45,289 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 71 [2020-07-21 00:39:45,461 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2020-07-21 00:39:45,623 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:39:45,778 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-07-21 00:39:45,922 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2020-07-21 00:39:46,062 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:46,200 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 49 [2020-07-21 00:39:46,319 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:46,431 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:39:48,255 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:48,359 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:48,503 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:48,618 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:48,748 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:48,876 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:49,040 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:49,177 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:49,323 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:49,464 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:49,651 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:49,806 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:49,972 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:50,133 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:50,334 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:50,503 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:50,684 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:50,863 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:51,036 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:39:51,193 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2020-07-21 00:39:51,343 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-21 00:39:51,484 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:39:51,618 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:39:51,740 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 46 [2020-07-21 00:39:51,850 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 43 [2020-07-21 00:39:51,955 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:39:52,274 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:39:52,275 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:39:53,785 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:39:54,027 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:54,131 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:54,256 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:54,377 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:54,537 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:54,663 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:54,804 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:54,947 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:55,124 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:55,276 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:39:55,433 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:55,591 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:55,743 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2020-07-21 00:39:55,882 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-21 00:39:56,012 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:39:56,133 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2020-07-21 00:39:56,241 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:39:56,348 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:39:56,671 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:39:58,401 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:58,510 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:39:58,631 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:58,752 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:39:58,912 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:59,040 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:39:59,182 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:59,321 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:39:59,453 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 51 [2020-07-21 00:39:59,573 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:39:59,686 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-07-21 00:39:59,792 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:00,119 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:01,667 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:40:01,783 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:40:01,931 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:40:02,054 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:40:02,185 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:40:02,318 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:40:02,441 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 44 [2020-07-21 00:40:02,547 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:02,876 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:02,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:04,442 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:40:04,550 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:40:04,877 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:04,878 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:06,300 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:06,301 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:07,345 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:08,413 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:09,213 INFO L501 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-21 00:40:12,728 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:12,891 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:13,074 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:13,253 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:13,721 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:13,983 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:14,233 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:14,509 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:15,074 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:15,418 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:15,779 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:16,133 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:16,804 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:17,239 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:17,621 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:17,930 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:18,443 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:18,800 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:19,191 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:19,584 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:20,152 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:40:20,580 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:40:21,021 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:40:21,626 WARN L193 SmtUtils]: Spent 600.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:40:22,575 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:40:23,296 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:40:24,067 WARN L193 SmtUtils]: Spent 763.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:40:24,835 WARN L193 SmtUtils]: Spent 762.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:40:25,951 WARN L193 SmtUtils]: Spent 867.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:40:26,829 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:40:27,716 WARN L193 SmtUtils]: Spent 878.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:40:28,594 WARN L193 SmtUtils]: Spent 872.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:40:29,826 WARN L193 SmtUtils]: Spent 983.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:40:30,807 WARN L193 SmtUtils]: Spent 975.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:40:31,763 WARN L193 SmtUtils]: Spent 947.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:40:32,563 WARN L193 SmtUtils]: Spent 796.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:40:33,261 WARN L193 SmtUtils]: Spent 689.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:40:33,964 WARN L193 SmtUtils]: Spent 698.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-07-21 00:40:34,691 WARN L193 SmtUtils]: Spent 720.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:40:35,424 WARN L193 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-07-21 00:40:36,361 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:36,470 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:36,590 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:36,709 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:37,029 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:37,201 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:37,379 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:37,558 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:37,937 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:38,166 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:38,408 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:38,652 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:39,100 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:39,388 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:39,685 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:39,990 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:40,510 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:40,891 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:41,278 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:41,666 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:42,265 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:40:42,710 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:40:43,163 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:40:43,622 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:40:44,299 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:40:44,805 WARN L193 SmtUtils]: Spent 502.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:40:45,342 WARN L193 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:40:45,884 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:40:46,646 WARN L193 SmtUtils]: Spent 598.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:40:47,247 WARN L193 SmtUtils]: Spent 596.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:40:47,861 WARN L193 SmtUtils]: Spent 607.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:40:48,481 WARN L193 SmtUtils]: Spent 615.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:40:49,345 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:40:50,056 WARN L193 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-07-21 00:40:50,767 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:40:51,479 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-07-21 00:40:53,339 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:53,454 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:40:53,581 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:53,705 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:40:54,044 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:54,223 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:40:54,413 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:54,603 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:40:55,000 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:55,240 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:40:55,490 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:55,743 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:40:56,204 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:56,510 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:40:56,830 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:57,148 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:40:57,677 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:58,047 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:40:58,435 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:58,817 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:40:59,428 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:40:59,877 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:41:00,332 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:00,792 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:01,478 WARN L193 SmtUtils]: Spent 523.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:41:02,012 WARN L193 SmtUtils]: Spent 529.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:41:02,557 WARN L193 SmtUtils]: Spent 539.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:41:03,096 WARN L193 SmtUtils]: Spent 535.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:41:03,784 WARN L193 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:41:04,231 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification that was a NOOP. DAG size: 117 [2020-07-21 00:41:04,686 WARN L193 SmtUtils]: Spent 450.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:41:05,137 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification that was a NOOP. DAG size: 119 [2020-07-21 00:41:06,502 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:06,629 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:06,964 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:07,141 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:07,327 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:07,514 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:07,915 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:08,156 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:08,412 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:08,661 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:09,133 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:09,451 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:09,775 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:10,104 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:10,657 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:11,035 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:11,433 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:11,813 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:12,429 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:41:12,879 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:41:13,363 WARN L193 SmtUtils]: Spent 477.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:13,841 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:14,548 WARN L193 SmtUtils]: Spent 537.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:41:15,079 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2020-07-21 00:41:15,760 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:41:16,311 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification that was a NOOP. DAG size: 106 [2020-07-21 00:41:17,957 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:18,069 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:18,192 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:18,312 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:18,634 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:18,821 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:19,000 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:19,184 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:19,576 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:19,811 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:20,055 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:20,315 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:20,776 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:21,088 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:21,404 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:21,713 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:22,245 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:22,611 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:23,158 WARN L193 SmtUtils]: Spent 541.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:23,725 WARN L193 SmtUtils]: Spent 562.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:24,615 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:41:25,274 WARN L193 SmtUtils]: Spent 653.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-07-21 00:41:25,953 WARN L193 SmtUtils]: Spent 673.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:26,620 WARN L193 SmtUtils]: Spent 662.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-07-21 00:41:29,139 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:29,311 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:29,489 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:29,693 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:30,062 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:30,254 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:30,440 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:30,670 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:31,295 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:31,675 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:32,051 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:32,425 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:33,133 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:33,589 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:34,061 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:34,516 WARN L193 SmtUtils]: Spent 449.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:35,045 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:35,427 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:41:35,811 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:36,197 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:41:37,910 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:38,025 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:38,156 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:38,279 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:38,611 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:38,787 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:38,972 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:39,149 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:39,546 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:39,796 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:40,050 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:40,297 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:40,776 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:41,088 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:41:41,555 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:41,989 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:41:44,334 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:44,512 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:44,698 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:44,889 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:45,413 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:45,680 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:45,973 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:46,257 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:46,884 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:47,246 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:41:47,626 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:48,012 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:41:50,369 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:50,550 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:50,736 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:50,942 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:51,459 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:51,752 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:41:52,042 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:52,329 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:41:54,105 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:41:54,212 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:41:54,650 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:54,827 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:41:55,018 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:55,218 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:41:57,462 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:41:57,573 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:42:17,924 INFO L134 CoverageAnalysis]: Checked inductivity of 190705 backedges. 9209 proven. 23028 refuted. 0 times theorem prover too weak. 158468 trivial. 0 not checked. [2020-07-21 00:42:17,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558590181] [2020-07-21 00:42:17,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-07-21 00:42:17,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 63] total 69 [2020-07-21 00:42:17,926 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323695432] [2020-07-21 00:42:17,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 69 states [2020-07-21 00:42:17,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 00:42:17,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 69 interpolants. [2020-07-21 00:42:17,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=526, Invalid=4166, Unknown=0, NotChecked=0, Total=4692 [2020-07-21 00:42:17,931 INFO L87 Difference]: Start difference. First operand 197 states and 269 transitions. Second operand 69 states. [2020-07-21 00:42:20,262 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:21,437 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2020-07-21 00:42:22,852 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:24,075 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:24,917 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 9 [2020-07-21 00:42:25,905 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:27,198 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:28,523 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:29,845 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:31,682 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:33,033 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:34,962 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:36,115 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:37,296 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 9 [2020-07-21 00:42:43,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 00:42:43,996 INFO L93 Difference]: Finished difference Result 404 states and 623 transitions. [2020-07-21 00:42:44,002 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2020-07-21 00:42:44,002 INFO L78 Accepts]: Start accepts. Automaton has 69 states. Word has length 1794 [2020-07-21 00:42:44,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 00:42:44,008 INFO L225 Difference]: With dead ends: 404 [2020-07-21 00:42:44,008 INFO L226 Difference]: Without dead ends: 224 [2020-07-21 00:42:44,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3663 GetRequests, 3453 SyntacticMatches, 67 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7186 ImplicationChecksByTransitivity, 33.2s TimeCoverageRelationStatistics Valid=3805, Invalid=17075, Unknown=0, NotChecked=0, Total=20880 [2020-07-21 00:42:44,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-07-21 00:42:44,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 217. [2020-07-21 00:42:44,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217 states. [2020-07-21 00:42:44,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217 states to 217 states and 298 transitions. [2020-07-21 00:42:44,037 INFO L78 Accepts]: Start accepts. Automaton has 217 states and 298 transitions. Word has length 1794 [2020-07-21 00:42:44,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 00:42:44,038 INFO L479 AbstractCegarLoop]: Abstraction has 217 states and 298 transitions. [2020-07-21 00:42:44,038 INFO L480 AbstractCegarLoop]: Interpolant automaton has 69 states. [2020-07-21 00:42:44,039 INFO L276 IsEmpty]: Start isEmpty. Operand 217 states and 298 transitions. [2020-07-21 00:42:44,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2101 [2020-07-21 00:42:44,079 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 00:42:44,080 INFO L422 BasicCegarLoop]: trace histogram [320, 320, 171, 149, 148, 148, 148, 148, 148, 148, 148, 23, 23, 23, 23, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-21 00:42:44,295 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:42:44,296 INFO L427 AbstractCegarLoop]: === Iteration 20 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 00:42:44,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 00:42:44,297 INFO L82 PathProgramCache]: Analyzing trace with hash -780133950, now seen corresponding path program 18 times [2020-07-21 00:42:44,297 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 00:42:44,297 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1831377010] [2020-07-21 00:42:44,298 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 00:42:46,499 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 4 partitions) issued 1 check-sat command(s) [2020-07-21 00:42:46,500 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 00:42:46,509 INFO L263 TraceCheckSpWp]: Trace formula consists of 1539 conjuncts, 59 conjunts are in the unsatisfiable core [2020-07-21 00:42:46,539 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 00:42:51,187 INFO L134 CoverageAnalysis]: Checked inductivity of 262713 backedges. 87752 proven. 1101 refuted. 0 times theorem prover too weak. 173860 trivial. 0 not checked. [2020-07-21 00:42:51,188 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-21 00:42:52,797 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:42:52,912 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:42:53,035 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:42:53,165 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:42:53,512 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:42:53,692 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:42:53,882 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:42:54,069 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:42:54,473 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:42:54,714 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:42:54,951 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:42:55,178 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:42:55,600 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:42:55,870 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:42:56,173 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:42:56,508 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:42:57,070 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:42:57,456 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:42:57,864 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:42:58,271 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:42:58,696 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:42:59,124 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:42:59,675 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:43:00,119 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:43:01,482 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:43:01,596 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:43:01,721 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:43:01,845 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:43:02,011 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:43:02,146 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:43:02,287 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:43:02,429 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:43:02,617 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:43:02,770 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:43:02,939 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:43:03,101 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:43:03,307 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:43:03,483 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:43:03,670 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:43:03,858 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:43:04,086 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:43:04,279 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:43:04,488 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:43:04,694 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:43:04,947 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:43:05,169 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:43:05,395 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:43:05,620 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:30,301 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:44:30,422 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:44:30,556 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:44:30,691 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:44:31,046 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:44:31,234 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:44:31,430 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:44:31,628 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:44:32,057 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:32,303 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:32,570 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:32,833 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:33,320 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:44:33,644 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:44:33,986 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:44:34,334 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:44:34,896 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:44:35,298 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:44:35,701 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:44:36,120 WARN L193 SmtUtils]: Spent 415.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:44:36,537 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:44:36,959 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:44:37,394 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:44:37,823 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:44:39,013 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:44:39,158 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:44:39,271 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:44:39,390 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:44:39,516 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:44:39,681 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:44:39,809 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:44:39,958 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:44:40,107 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:44:40,286 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:44:40,445 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:44:40,613 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:44:40,768 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:44:40,983 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:44:41,158 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:44:41,344 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:44:41,533 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:44:41,760 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:44:41,963 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:44:42,167 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:44:42,379 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:44:42,638 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:42,867 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:43,098 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:43,329 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:46,784 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:44:46,897 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 15 [2020-07-21 00:44:47,326 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:44:47,517 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2020-07-21 00:44:47,719 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:44:47,919 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2020-07-21 00:44:48,456 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:44:48,733 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 39 [2020-07-21 00:44:49,008 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:44:49,315 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 41 [2020-07-21 00:44:49,960 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:50,341 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:44:50,731 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:51,136 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:44:51,892 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:44:52,367 WARN L193 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 65 [2020-07-21 00:44:52,887 WARN L193 SmtUtils]: Spent 513.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:44:53,398 WARN L193 SmtUtils]: Spent 505.00 ms on a formula simplification that was a NOOP. DAG size: 67 [2020-07-21 00:44:54,254 WARN L193 SmtUtils]: Spent 577.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:44:54,848 WARN L193 SmtUtils]: Spent 587.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2020-07-21 00:44:55,671 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:44:56,277 WARN L193 SmtUtils]: Spent 602.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2020-07-21 00:44:56,917 WARN L193 SmtUtils]: Spent 631.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:44:57,547 WARN L193 SmtUtils]: Spent 624.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2020-07-21 00:44:58,215 WARN L193 SmtUtils]: Spent 661.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:44:58,863 WARN L193 SmtUtils]: Spent 641.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2020-07-21 00:44:59,747 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-07-21 00:44:59,859 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 17 [2020-07-21 00:44:59,993 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-07-21 00:45:00,125 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2020-07-21 00:45:00,327 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 00:45:00,470 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 22 [2020-07-21 00:45:00,635 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:45:00,800 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2020-07-21 00:45:01,027 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:45:01,202 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 27 [2020-07-21 00:45:01,397 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:45:01,591 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2020-07-21 00:45:01,853 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:45:02,059 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 32 [2020-07-21 00:45:02,291 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:45:02,521 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-21 00:45:02,822 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:45:03,065 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-21 00:45:03,330 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:45:03,591 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 40 [2020-07-21 00:45:03,929 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:45:04,208 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 42 [2020-07-21 00:45:04,502 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:45:04,807 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 45 [2020-07-21 00:45:05,177 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:45:05,497 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2020-07-21 00:45:05,835 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:45:06,167 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2020-07-21 00:45:06,584 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:45:06,937 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2020-07-21 00:45:07,322 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2020-07-21 00:45:07,699 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification that was a NOOP. DAG size: 54