/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:19:17,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:19:17,741 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:19:17,777 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:19:17,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:19:17,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:19:17,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:19:17,783 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:19:17,785 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:19:17,786 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:19:17,795 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:19:17,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:19:17,797 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:19:17,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:19:17,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:19:17,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:19:17,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:19:17,802 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:19:17,804 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:19:17,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:19:17,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:19:17,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:19:17,811 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:19:17,812 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:19:17,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 06:19:17,816 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 06:19:17,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 06:19:17,817 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 06:19:17,818 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 06:19:17,819 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 06:19:17,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 06:19:17,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 06:19:17,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 06:19:17,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 06:19:17,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 06:19:17,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 06:19:17,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 06:19:17,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 06:19:17,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:19:17,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:19:17,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:19:17,835 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:19:17,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:19:17,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:19:17,857 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:19:17,858 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:19:17,858 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:19:17,858 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:19:17,858 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:19:17,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:19:17,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:19:17,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:19:17,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:19:17,859 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:19:17,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:19:17,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:19:17,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:19:17,860 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:19:17,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:19:17,861 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:19:17,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:19:17,861 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:19:17,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:19:17,862 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:19:17,862 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:19:18,222 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:19:18,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:19:18,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:19:18,259 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:19:18,260 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:19:18,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-11-07 06:19:18,343 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab3f868d/8716995e7642490e9c5c6b3284270e5d/FLAGc756de092 [2020-11-07 06:19:19,070 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:19:19,071 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-11-07 06:19:19,085 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab3f868d/8716995e7642490e9c5c6b3284270e5d/FLAGc756de092 [2020-11-07 06:19:19,320 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bab3f868d/8716995e7642490e9c5c6b3284270e5d [2020-11-07 06:19:19,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:19:19,331 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:19:19,332 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:19:19,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:19:19,336 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:19:19,337 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:19:19" (1/1) ... [2020-11-07 06:19:19,341 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19b15775 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:19, skipping insertion in model container [2020-11-07 06:19:19,341 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:19:19" (1/1) ... [2020-11-07 06:19:19,349 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:19:19,394 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:19:19,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:19:19,849 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:19:20,042 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:19:20,070 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:19:20,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20 WrapperNode [2020-11-07 06:19:20,070 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:19:20,071 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:19:20,072 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:19:20,072 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:19:20,084 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,085 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,178 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,194 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (1/1) ... [2020-11-07 06:19:20,213 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:19:20,217 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:19:20,218 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:19:20,218 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:19:20,219 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (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 [2020-11-07 06:19:20,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:19:20,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:19:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:19:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 06:19:20,300 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:19:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 06:19:20,300 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 06:19:20,301 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:19:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:19:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:19:20,302 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:19:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:19:20,303 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:19:20,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:19:21,833 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:19:21,833 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:19:21,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:19:21 BoogieIcfgContainer [2020-11-07 06:19:21,836 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:19:21,838 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:19:21,838 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:19:21,841 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:19:21,842 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:19:19" (1/3) ... [2020-11-07 06:19:21,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46642984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:19:21, skipping insertion in model container [2020-11-07 06:19:21,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:19:20" (2/3) ... [2020-11-07 06:19:21,843 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46642984 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:19:21, skipping insertion in model container [2020-11-07 06:19:21,843 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:19:21" (3/3) ... [2020-11-07 06:19:21,845 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-11-07 06:19:21,860 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:19:21,865 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:19:21,877 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:19:21,901 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:19:21,901 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:19:21,901 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:19:21,901 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:19:21,902 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:19:21,902 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:19:21,902 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:19:21,902 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:19:21,927 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states. [2020-11-07 06:19:21,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-11-07 06:19:21,941 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:21,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:21,943 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:21,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:21,949 INFO L82 PathProgramCache]: Analyzing trace with hash -91633356, now seen corresponding path program 1 times [2020-11-07 06:19:21,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:21,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469999663] [2020-11-07 06:19:21,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:22,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:22,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:22,529 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:19:22,530 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469999663] [2020-11-07 06:19:22,532 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:19:22,532 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-11-07 06:19:22,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61770029] [2020-11-07 06:19:22,539 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:19:22,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:22,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:19:22,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:19:22,563 INFO L87 Difference]: Start difference. First operand 468 states. Second operand 5 states. [2020-11-07 06:19:25,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:25,649 INFO L93 Difference]: Finished difference Result 1239 states and 1811 transitions. [2020-11-07 06:19:25,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-07 06:19:25,651 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-11-07 06:19:25,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:25,692 INFO L225 Difference]: With dead ends: 1239 [2020-11-07 06:19:25,692 INFO L226 Difference]: Without dead ends: 716 [2020-11-07 06:19:25,709 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:19:25,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-11-07 06:19:25,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 704. [2020-11-07 06:19:25,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-11-07 06:19:25,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 935 transitions. [2020-11-07 06:19:25,935 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 935 transitions. Word has length 77 [2020-11-07 06:19:25,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:25,936 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 935 transitions. [2020-11-07 06:19:25,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:19:25,937 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 935 transitions. [2020-11-07 06:19:25,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 06:19:25,946 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:25,947 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:25,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:19:25,948 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:25,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:25,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1561223428, now seen corresponding path program 1 times [2020-11-07 06:19:25,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:25,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1675407274] [2020-11-07 06:19:25,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:26,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:26,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:26,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:26,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:26,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:26,388 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:19:26,388 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1675407274] [2020-11-07 06:19:26,388 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:19:26,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 06:19:26,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880956052] [2020-11-07 06:19:26,391 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 06:19:26,391 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:26,391 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 06:19:26,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 06:19:26,393 INFO L87 Difference]: Start difference. First operand 704 states and 935 transitions. Second operand 8 states. [2020-11-07 06:19:28,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:28,833 INFO L93 Difference]: Finished difference Result 1569 states and 2140 transitions. [2020-11-07 06:19:28,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:19:28,834 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2020-11-07 06:19:28,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:28,844 INFO L225 Difference]: With dead ends: 1569 [2020-11-07 06:19:28,845 INFO L226 Difference]: Without dead ends: 888 [2020-11-07 06:19:28,849 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-07 06:19:28,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-11-07 06:19:28,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 862. [2020-11-07 06:19:28,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 862 states. [2020-11-07 06:19:29,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1099 transitions. [2020-11-07 06:19:29,002 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1099 transitions. Word has length 160 [2020-11-07 06:19:29,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:29,002 INFO L481 AbstractCegarLoop]: Abstraction has 862 states and 1099 transitions. [2020-11-07 06:19:29,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 06:19:29,003 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1099 transitions. [2020-11-07 06:19:29,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-11-07 06:19:29,006 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:29,006 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:29,007 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:19:29,007 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:29,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:29,008 INFO L82 PathProgramCache]: Analyzing trace with hash 203694031, now seen corresponding path program 1 times [2020-11-07 06:19:29,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:29,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1301527198] [2020-11-07 06:19:29,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:29,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:29,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:29,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:29,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:29,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:29,306 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:19:29,307 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1301527198] [2020-11-07 06:19:29,308 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:19:29,308 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:19:29,311 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021347159] [2020-11-07 06:19:29,313 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:19:29,314 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:29,315 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:19:29,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:19:29,316 INFO L87 Difference]: Start difference. First operand 862 states and 1099 transitions. Second operand 5 states. [2020-11-07 06:19:31,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:31,513 INFO L93 Difference]: Finished difference Result 2359 states and 3137 transitions. [2020-11-07 06:19:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:19:31,515 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-11-07 06:19:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:31,533 INFO L225 Difference]: With dead ends: 2359 [2020-11-07 06:19:31,533 INFO L226 Difference]: Without dead ends: 1520 [2020-11-07 06:19:31,537 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:19:31,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-11-07 06:19:31,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1326. [2020-11-07 06:19:31,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-11-07 06:19:31,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1664 transitions. [2020-11-07 06:19:31,828 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1664 transitions. Word has length 166 [2020-11-07 06:19:31,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:31,829 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1664 transitions. [2020-11-07 06:19:31,829 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:19:31,829 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1664 transitions. [2020-11-07 06:19:31,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-11-07 06:19:31,832 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:31,833 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:31,833 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:19:31,833 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:31,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:31,834 INFO L82 PathProgramCache]: Analyzing trace with hash 67452355, now seen corresponding path program 1 times [2020-11-07 06:19:31,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:31,835 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [478992992] [2020-11-07 06:19:31,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:31,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:31,948 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:31,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:31,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:32,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:32,127 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:19:32,127 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [478992992] [2020-11-07 06:19:32,128 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:19:32,128 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:19:32,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [331534851] [2020-11-07 06:19:32,129 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:19:32,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:32,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:19:32,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:19:32,142 INFO L87 Difference]: Start difference. First operand 1326 states and 1664 transitions. Second operand 7 states. [2020-11-07 06:19:34,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:34,660 INFO L93 Difference]: Finished difference Result 3161 states and 4104 transitions. [2020-11-07 06:19:34,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:19:34,661 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-11-07 06:19:34,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:34,680 INFO L225 Difference]: With dead ends: 3161 [2020-11-07 06:19:34,680 INFO L226 Difference]: Without dead ends: 1858 [2020-11-07 06:19:34,686 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:19:34,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2020-11-07 06:19:34,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1496. [2020-11-07 06:19:34,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-11-07 06:19:34,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1750 transitions. [2020-11-07 06:19:34,954 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1750 transitions. Word has length 175 [2020-11-07 06:19:34,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:34,955 INFO L481 AbstractCegarLoop]: Abstraction has 1496 states and 1750 transitions. [2020-11-07 06:19:34,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:19:34,955 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1750 transitions. [2020-11-07 06:19:34,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-11-07 06:19:34,959 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:34,959 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:34,959 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 06:19:34,960 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:34,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:34,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1404497972, now seen corresponding path program 1 times [2020-11-07 06:19:34,961 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:34,961 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [947110450] [2020-11-07 06:19:34,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:34,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:35,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:35,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:35,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:35,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:35,571 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:19:35,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [947110450] [2020-11-07 06:19:35,572 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:19:35,572 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-11-07 06:19:35,573 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895525218] [2020-11-07 06:19:35,573 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-11-07 06:19:35,573 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:35,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-11-07 06:19:35,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:19:35,574 INFO L87 Difference]: Start difference. First operand 1496 states and 1750 transitions. Second operand 12 states. [2020-11-07 06:19:36,101 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-11-07 06:19:36,285 WARN L194 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-11-07 06:19:36,675 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-11-07 06:19:37,436 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-11-07 06:19:37,658 WARN L194 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-11-07 06:19:37,830 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-11-07 06:19:38,229 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-11-07 06:19:38,401 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-11-07 06:19:40,418 WARN L194 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-11-07 06:19:40,629 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-11-07 06:19:42,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:42,307 INFO L93 Difference]: Finished difference Result 4700 states and 5607 transitions. [2020-11-07 06:19:42,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-11-07 06:19:42,308 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 204 [2020-11-07 06:19:42,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:42,335 INFO L225 Difference]: With dead ends: 4700 [2020-11-07 06:19:42,336 INFO L226 Difference]: Without dead ends: 3227 [2020-11-07 06:19:42,342 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2020-11-07 06:19:42,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2020-11-07 06:19:42,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 2473. [2020-11-07 06:19:42,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2473 states. [2020-11-07 06:19:42,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 2924 transitions. [2020-11-07 06:19:42,890 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 2924 transitions. Word has length 204 [2020-11-07 06:19:42,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:42,891 INFO L481 AbstractCegarLoop]: Abstraction has 2473 states and 2924 transitions. [2020-11-07 06:19:42,891 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-11-07 06:19:42,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 2924 transitions. [2020-11-07 06:19:42,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-07 06:19:42,897 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:42,898 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:42,898 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 06:19:42,898 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:42,899 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:42,899 INFO L82 PathProgramCache]: Analyzing trace with hash -662844622, now seen corresponding path program 1 times [2020-11-07 06:19:42,899 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:42,900 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1501381805] [2020-11-07 06:19:42,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:42,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:43,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:43,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:43,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:43,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:43,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-11-07 06:19:43,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:43,503 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-11-07 06:19:43,503 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1501381805] [2020-11-07 06:19:43,504 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:19:43,504 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 06:19:43,504 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652477127] [2020-11-07 06:19:43,505 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:19:43,505 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:43,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:19:43,506 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:19:43,506 INFO L87 Difference]: Start difference. First operand 2473 states and 2924 transitions. Second operand 10 states. [2020-11-07 06:19:47,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:47,681 INFO L93 Difference]: Finished difference Result 5801 states and 6971 transitions. [2020-11-07 06:19:47,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 06:19:47,682 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 278 [2020-11-07 06:19:47,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:47,707 INFO L225 Difference]: With dead ends: 5801 [2020-11-07 06:19:47,707 INFO L226 Difference]: Without dead ends: 3319 [2020-11-07 06:19:47,715 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2020-11-07 06:19:47,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2020-11-07 06:19:48,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3120. [2020-11-07 06:19:48,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-11-07 06:19:48,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3728 transitions. [2020-11-07 06:19:48,408 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3728 transitions. Word has length 278 [2020-11-07 06:19:48,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:48,409 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3728 transitions. [2020-11-07 06:19:48,409 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:19:48,409 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3728 transitions. [2020-11-07 06:19:48,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-11-07 06:19:48,417 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:48,417 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:48,417 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 06:19:48,417 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:48,418 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:48,418 INFO L82 PathProgramCache]: Analyzing trace with hash 810975219, now seen corresponding path program 1 times [2020-11-07 06:19:48,418 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:48,419 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288655291] [2020-11-07 06:19:48,419 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:48,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:48,558 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:48,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:48,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:48,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:48,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-11-07 06:19:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:49,070 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:19:49,070 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288655291] [2020-11-07 06:19:49,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:19:49,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 06:19:49,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056459794] [2020-11-07 06:19:49,072 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 06:19:49,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:49,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 06:19:49,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:19:49,073 INFO L87 Difference]: Start difference. First operand 3120 states and 3728 transitions. Second operand 11 states. [2020-11-07 06:19:49,620 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-11-07 06:19:50,037 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-11-07 06:19:50,989 WARN L194 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-11-07 06:19:52,178 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-11-07 06:19:52,731 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-11-07 06:19:54,579 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:19:54,580 INFO L93 Difference]: Finished difference Result 7773 states and 9519 transitions. [2020-11-07 06:19:54,580 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-11-07 06:19:54,580 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 283 [2020-11-07 06:19:54,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:19:54,612 INFO L225 Difference]: With dead ends: 7773 [2020-11-07 06:19:54,613 INFO L226 Difference]: Without dead ends: 4676 [2020-11-07 06:19:54,623 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2020-11-07 06:19:54,630 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2020-11-07 06:19:55,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 3588. [2020-11-07 06:19:55,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-11-07 06:19:55,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4241 transitions. [2020-11-07 06:19:55,575 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4241 transitions. Word has length 283 [2020-11-07 06:19:55,576 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:19:55,576 INFO L481 AbstractCegarLoop]: Abstraction has 3588 states and 4241 transitions. [2020-11-07 06:19:55,576 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 06:19:55,576 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4241 transitions. [2020-11-07 06:19:55,584 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-11-07 06:19:55,585 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:19:55,585 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:19:55,585 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 06:19:55,585 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:19:55,586 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:19:55,586 INFO L82 PathProgramCache]: Analyzing trace with hash 1294379473, now seen corresponding path program 1 times [2020-11-07 06:19:55,586 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:19:55,586 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1291330962] [2020-11-07 06:19:55,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:19:55,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:55,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:19:55,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:55,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:19:55,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:55,788 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-11-07 06:19:55,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:19:56,066 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:19:56,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1291330962] [2020-11-07 06:19:56,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:19:56,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 06:19:56,073 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328591962] [2020-11-07 06:19:56,073 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:19:56,074 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:19:56,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:19:56,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:19:56,075 INFO L87 Difference]: Start difference. First operand 3588 states and 4241 transitions. Second operand 10 states. [2020-11-07 06:20:01,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:01,221 INFO L93 Difference]: Finished difference Result 8393 states and 10035 transitions. [2020-11-07 06:20:01,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 06:20:01,222 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 293 [2020-11-07 06:20:01,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:01,249 INFO L225 Difference]: With dead ends: 8393 [2020-11-07 06:20:01,249 INFO L226 Difference]: Without dead ends: 4516 [2020-11-07 06:20:01,262 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-11-07 06:20:01,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2020-11-07 06:20:02,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 3578. [2020-11-07 06:20:02,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3578 states. [2020-11-07 06:20:02,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 4210 transitions. [2020-11-07 06:20:02,179 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 4210 transitions. Word has length 293 [2020-11-07 06:20:02,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:02,180 INFO L481 AbstractCegarLoop]: Abstraction has 3578 states and 4210 transitions. [2020-11-07 06:20:02,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:20:02,180 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 4210 transitions. [2020-11-07 06:20:02,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-11-07 06:20:02,190 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:02,190 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:02,190 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 06:20:02,191 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:02,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:02,191 INFO L82 PathProgramCache]: Analyzing trace with hash -1779213004, now seen corresponding path program 1 times [2020-11-07 06:20:02,191 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:02,192 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1940111352] [2020-11-07 06:20:02,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:02,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:02,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:02,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:02,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:02,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 06:20:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:02,728 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-11-07 06:20:02,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1940111352] [2020-11-07 06:20:02,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:02,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 06:20:02,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873127918] [2020-11-07 06:20:02,730 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:20:02,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:02,730 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:20:02,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:20:02,731 INFO L87 Difference]: Start difference. First operand 3578 states and 4210 transitions. Second operand 10 states. [2020-11-07 06:20:07,447 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:07,447 INFO L93 Difference]: Finished difference Result 7870 states and 9387 transitions. [2020-11-07 06:20:07,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 06:20:07,448 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 328 [2020-11-07 06:20:07,448 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:07,471 INFO L225 Difference]: With dead ends: 7870 [2020-11-07 06:20:07,472 INFO L226 Difference]: Without dead ends: 4273 [2020-11-07 06:20:07,482 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2020-11-07 06:20:07,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2020-11-07 06:20:08,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4073. [2020-11-07 06:20:08,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-11-07 06:20:08,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 4818 transitions. [2020-11-07 06:20:08,571 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 4818 transitions. Word has length 328 [2020-11-07 06:20:08,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:08,572 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 4818 transitions. [2020-11-07 06:20:08,572 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:20:08,572 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 4818 transitions. [2020-11-07 06:20:08,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-11-07 06:20:08,581 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:08,582 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:08,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 06:20:08,582 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:08,582 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:08,583 INFO L82 PathProgramCache]: Analyzing trace with hash 74203030, now seen corresponding path program 1 times [2020-11-07 06:20:08,583 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:08,583 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794277835] [2020-11-07 06:20:08,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:08,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:08,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:08,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:08,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:08,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:08,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 06:20:08,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:08,968 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-11-07 06:20:08,968 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794277835] [2020-11-07 06:20:08,968 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:08,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:20:08,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570394333] [2020-11-07 06:20:08,969 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:20:08,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:08,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:20:08,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:20:08,970 INFO L87 Difference]: Start difference. First operand 4073 states and 4818 transitions. Second operand 5 states. [2020-11-07 06:20:11,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:11,870 INFO L93 Difference]: Finished difference Result 8909 states and 10760 transitions. [2020-11-07 06:20:11,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:20:11,873 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2020-11-07 06:20:11,874 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:11,915 INFO L225 Difference]: With dead ends: 8909 [2020-11-07 06:20:11,915 INFO L226 Difference]: Without dead ends: 4859 [2020-11-07 06:20:11,925 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:20:11,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2020-11-07 06:20:12,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 4531. [2020-11-07 06:20:12,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4531 states. [2020-11-07 06:20:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 5276 transitions. [2020-11-07 06:20:12,966 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 5276 transitions. Word has length 347 [2020-11-07 06:20:12,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:12,967 INFO L481 AbstractCegarLoop]: Abstraction has 4531 states and 5276 transitions. [2020-11-07 06:20:12,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:20:12,967 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 5276 transitions. [2020-11-07 06:20:12,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-11-07 06:20:12,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:12,976 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:12,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 06:20:12,976 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:12,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:12,977 INFO L82 PathProgramCache]: Analyzing trace with hash -512231299, now seen corresponding path program 1 times [2020-11-07 06:20:12,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:12,977 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2131419816] [2020-11-07 06:20:12,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:13,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:13,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:13,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:13,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:13,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:13,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 06:20:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:13,438 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-11-07 06:20:13,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2131419816] [2020-11-07 06:20:13,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:13,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 06:20:13,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343192694] [2020-11-07 06:20:13,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:20:13,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:13,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:20:13,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:20:13,440 INFO L87 Difference]: Start difference. First operand 4531 states and 5276 transitions. Second operand 10 states. [2020-11-07 06:20:16,813 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-11-07 06:20:20,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:20,074 INFO L93 Difference]: Finished difference Result 10668 states and 12771 transitions. [2020-11-07 06:20:20,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 06:20:20,075 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 352 [2020-11-07 06:20:20,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:20,086 INFO L225 Difference]: With dead ends: 10668 [2020-11-07 06:20:20,086 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:20:20,109 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-11-07 06:20:20,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:20:20,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:20:20,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:20:20,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:20:20,110 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 352 [2020-11-07 06:20:20,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:20,111 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:20:20,111 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:20:20,111 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:20:20,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:20:20,111 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 06:20:20,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:20:21,554 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2020-11-07 06:20:27,523 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 119 [2020-11-07 06:20:37,140 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2020-11-07 06:20:42,965 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 101 [2020-11-07 06:20:45,092 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 105 [2020-11-07 06:20:47,167 WARN L194 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:20:56,899 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:07,571 WARN L194 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:07,804 WARN L194 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:08,051 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:18,797 WARN L194 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:25,629 WARN L194 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-11-07 06:21:26,343 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-11-07 06:21:26,581 WARN L194 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-11-07 06:21:27,398 WARN L194 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-11-07 06:21:43,888 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 193 [2020-11-07 06:21:44,142 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 186 [2020-11-07 06:21:44,436 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 178 [2020-11-07 06:21:44,997 WARN L194 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 205 [2020-11-07 06:21:45,181 WARN L194 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 209 [2020-11-07 06:21:45,647 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 182 [2020-11-07 06:21:46,044 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 185 [2020-11-07 06:21:46,370 WARN L194 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 207 [2020-11-07 06:21:46,820 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 193 [2020-11-07 06:21:47,056 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 186 [2020-11-07 06:21:47,354 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 178 [2020-11-07 06:21:47,922 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 205 [2020-11-07 06:21:48,109 WARN L194 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 209 [2020-11-07 06:21:48,572 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 182 [2020-11-07 06:21:48,959 WARN L194 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 185 [2020-11-07 06:21:49,285 WARN L194 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 207 [2020-11-07 06:22:30,369 WARN L194 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-11-07 06:22:31,011 WARN L194 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-11-07 06:22:31,703 WARN L194 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-11-07 06:22:32,335 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 63 [2020-11-07 06:22:32,986 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-11-07 06:22:33,832 WARN L194 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-11-07 06:22:34,349 WARN L194 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:22:35,037 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-11-07 06:22:36,016 WARN L194 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-11-07 06:22:36,843 WARN L194 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-11-07 06:22:39,698 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:22:42,523 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:22:43,368 WARN L194 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:22:44,064 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-11-07 06:22:44,761 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 65 [2020-11-07 06:22:45,353 WARN L194 SmtUtils]: Spent 582.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 55 [2020-11-07 06:22:46,135 WARN L194 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-11-07 06:22:46,728 WARN L194 SmtUtils]: Spent 584.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 57 [2020-11-07 06:22:49,549 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:22:50,363 WARN L194 SmtUtils]: Spent 805.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 60 [2020-11-07 06:22:50,894 WARN L194 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:22:51,478 WARN L194 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 53 [2020-11-07 06:22:54,277 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:22:57,104 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:22:59,906 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:23:02,719 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:23:03,692 WARN L194 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 61 [2020-11-07 06:23:04,273 WARN L194 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 50 [2020-11-07 06:23:04,929 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2020-11-07 06:23:05,725 WARN L194 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 63 [2020-11-07 06:23:06,571 WARN L194 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-11-07 06:23:07,359 WARN L194 SmtUtils]: Spent 779.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:23:07,926 WARN L194 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:23:09,642 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:11,342 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:13,045 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:13,614 WARN L194 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:14,175 WARN L194 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:14,738 WARN L194 SmtUtils]: Spent 554.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:16,444 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:17,019 WARN L194 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:17,586 WARN L194 SmtUtils]: Spent 558.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:19,203 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:23:19,787 WARN L194 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:21,549 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 329 DAG size of output: 60 [2020-11-07 06:23:22,116 WARN L194 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:23:23,834 WARN L194 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:25,588 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:27,325 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:27,890 WARN L194 SmtUtils]: Spent 557.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:28,462 WARN L194 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:29,030 WARN L194 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:23:30,743 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:23:32,380 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:23:33,055 WARN L194 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 56 [2020-11-07 06:23:33,973 WARN L194 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 56 [2020-11-07 06:23:34,627 WARN L194 SmtUtils]: Spent 645.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-11-07 06:23:35,318 WARN L194 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 58 [2020-11-07 06:23:36,015 WARN L194 SmtUtils]: Spent 689.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 57 [2020-11-07 06:23:36,647 WARN L194 SmtUtils]: Spent 623.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-11-07 06:23:37,250 WARN L194 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-11-07 06:23:37,802 WARN L194 SmtUtils]: Spent 542.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-11-07 06:23:38,384 WARN L194 SmtUtils]: Spent 574.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 53 [2020-11-07 06:23:39,331 WARN L194 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 56 [2020-11-07 06:23:39,988 WARN L194 SmtUtils]: Spent 649.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-11-07 06:23:40,795 WARN L194 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 58 [2020-11-07 06:23:43,510 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:23:46,251 WARN L194 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:23:47,172 WARN L194 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 56 [2020-11-07 06:23:47,825 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-11-07 06:23:50,573 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:23:51,563 WARN L194 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 53 [2020-11-07 06:23:54,454 WARN L194 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:23:55,474 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-11-07 06:23:58,368 WARN L194 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:23:59,278 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-11-07 06:24:00,007 WARN L194 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 53 [2020-11-07 06:24:01,034 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-11-07 06:24:01,648 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 55 [2020-11-07 06:24:02,272 WARN L194 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-11-07 06:24:03,275 WARN L194 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 60 [2020-11-07 06:24:04,071 WARN L194 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 57 [2020-11-07 06:24:04,743 WARN L194 SmtUtils]: Spent 663.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:24:05,371 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-11-07 06:24:05,927 WARN L194 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-11-07 06:24:06,672 WARN L194 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-11-07 06:24:07,352 WARN L194 SmtUtils]: Spent 672.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 59 [2020-11-07 06:24:07,962 WARN L194 SmtUtils]: Spent 600.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-11-07 06:24:08,531 WARN L194 SmtUtils]: Spent 559.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:09,113 WARN L194 SmtUtils]: Spent 573.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:10,035 WARN L194 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-11-07 06:24:10,834 WARN L194 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:24:13,609 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:24:14,529 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 69 [2020-11-07 06:24:15,288 WARN L194 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-11-07 06:24:16,069 WARN L194 SmtUtils]: Spent 772.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 59 [2020-11-07 06:24:16,783 WARN L194 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-11-07 06:24:17,456 WARN L194 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-11-07 06:24:18,506 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 213 DAG size of output: 57 [2020-11-07 06:24:19,203 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-11-07 06:24:22,134 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:24:22,973 WARN L194 SmtUtils]: Spent 836.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:24:25,872 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:24:28,799 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:24:29,490 WARN L194 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-11-07 06:24:30,069 WARN L194 SmtUtils]: Spent 564.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:31,850 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:24:33,950 WARN L194 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-11-07 06:24:34,557 WARN L194 SmtUtils]: Spent 598.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 51 [2020-11-07 06:24:37,361 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:24:40,166 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:24:41,040 WARN L194 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-11-07 06:24:41,603 WARN L194 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 51 [2020-11-07 06:24:42,340 WARN L194 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-11-07 06:24:42,978 WARN L194 SmtUtils]: Spent 629.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-11-07 06:24:43,609 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-11-07 06:24:44,464 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-11-07 06:24:45,059 WARN L194 SmtUtils]: Spent 586.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:46,855 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:24:48,558 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:24:50,326 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:24:50,935 WARN L194 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:24:51,522 WARN L194 SmtUtils]: Spent 578.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:52,107 WARN L194 SmtUtils]: Spent 577.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:24:53,877 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:24:54,797 WARN L194 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-11-07 06:24:57,743 WARN L194 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:24:58,306 WARN L194 SmtUtils]: Spent 556.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-11-07 06:24:59,004 WARN L194 SmtUtils]: Spent 687.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 58 [2020-11-07 06:25:01,940 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:02,802 WARN L194 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:25:05,760 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:06,448 WARN L194 SmtUtils]: Spent 680.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 64 [2020-11-07 06:25:07,166 WARN L194 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 60 [2020-11-07 06:25:07,987 WARN L194 SmtUtils]: Spent 812.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-11-07 06:25:10,956 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:11,575 WARN L194 SmtUtils]: Spent 610.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-11-07 06:25:12,352 WARN L194 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-11-07 06:25:13,112 WARN L194 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 57 [2020-11-07 06:25:16,089 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:19,047 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:19,843 WARN L194 SmtUtils]: Spent 787.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 54 [2020-11-07 06:25:22,801 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:25,787 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:26,481 WARN L194 SmtUtils]: Spent 686.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 58 [2020-11-07 06:25:27,468 WARN L194 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:25:28,032 WARN L194 SmtUtils]: Spent 555.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:25:28,980 WARN L194 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 54 [2020-11-07 06:25:30,016 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 225 DAG size of output: 64 [2020-11-07 06:25:30,595 WARN L194 SmtUtils]: Spent 572.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 50 [2020-11-07 06:25:31,167 WARN L194 SmtUtils]: Spent 561.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:25:34,124 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:34,942 WARN L194 SmtUtils]: Spent 809.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:25:35,586 WARN L194 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 59 [2020-11-07 06:25:38,558 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:41,529 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:42,157 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-11-07 06:25:45,138 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:46,004 WARN L194 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 58 [2020-11-07 06:25:46,562 WARN L194 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 48 [2020-11-07 06:25:49,546 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:25:50,261 WARN L194 SmtUtils]: Spent 707.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 72 [2020-11-07 06:25:50,897 WARN L194 SmtUtils]: Spent 627.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-11-07 06:25:51,860 WARN L194 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-11-07 06:25:52,750 WARN L194 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:25:53,624 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:25:54,490 WARN L194 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:25:55,102 WARN L194 SmtUtils]: Spent 583.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:25:55,707 WARN L194 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:25:57,568 WARN L194 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:25:58,177 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:25:59,995 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:00,829 WARN L194 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-11-07 06:26:01,562 WARN L194 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 58 [2020-11-07 06:26:02,655 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 214 DAG size of output: 60 [2020-11-07 06:26:03,713 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-11-07 06:26:06,585 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:26:09,467 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:26:10,443 WARN L194 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 62 [2020-11-07 06:26:12,256 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:26:12,864 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:26:14,697 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:16,571 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 329 DAG size of output: 60 [2020-11-07 06:26:18,420 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:19,028 WARN L194 SmtUtils]: Spent 599.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:26:20,897 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:21,499 WARN L194 SmtUtils]: Spent 594.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:26:22,099 WARN L194 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:26:22,702 WARN L194 SmtUtils]: Spent 593.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:26:24,544 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:25,166 WARN L194 SmtUtils]: Spent 612.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:26:27,389 WARN L194 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-11-07 06:26:28,467 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-11-07 06:26:29,273 WARN L194 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:26:29,892 WARN L194 SmtUtils]: Spent 611.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:26:31,630 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:26:32,259 WARN L194 SmtUtils]: Spent 621.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:26:34,090 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:26:35,935 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 326 DAG size of output: 58 [2020-11-07 06:26:36,834 WARN L194 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:26:39,881 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:26:42,917 WARN L194 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:26:43,488 WARN L194 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-11-07 06:26:44,470 WARN L194 SmtUtils]: Spent 972.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-11-07 06:26:45,177 WARN L194 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 56 [2020-11-07 06:26:48,222 WARN L194 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:26:51,273 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:26:54,323 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:26:55,221 WARN L194 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 66 [2020-11-07 06:26:56,076 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:26:56,811 WARN L194 SmtUtils]: Spent 727.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-11-07 06:26:57,548 WARN L194 SmtUtils]: Spent 728.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 53 [2020-11-07 06:26:58,573 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 53 [2020-11-07 06:26:59,556 WARN L194 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-11-07 06:27:00,412 WARN L194 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 62 [2020-11-07 06:27:01,280 WARN L194 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 57 [2020-11-07 06:27:01,987 WARN L194 SmtUtils]: Spent 698.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-11-07 06:27:02,689 WARN L194 SmtUtils]: Spent 693.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-11-07 06:27:03,466 WARN L194 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 57 [2020-11-07 06:27:04,512 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 221 DAG size of output: 60 [2020-11-07 06:27:05,244 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-11-07 06:27:05,949 WARN L194 SmtUtils]: Spent 695.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-11-07 06:27:06,692 WARN L194 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-11-07 06:27:07,451 WARN L194 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 62 [2020-11-07 06:27:08,151 WARN L194 SmtUtils]: Spent 691.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-11-07 06:27:11,224 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:12,070 WARN L194 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-11-07 06:27:13,851 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:27:14,687 WARN L194 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-11-07 06:27:15,518 WARN L194 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-11-07 06:27:17,375 WARN L194 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:27:18,012 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:27:18,913 WARN L194 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-11-07 06:27:19,658 WARN L194 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2020-11-07 06:27:20,324 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 57 [2020-11-07 06:27:21,068 WARN L194 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 53 [2020-11-07 06:27:21,838 WARN L194 SmtUtils]: Spent 762.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:27:24,966 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:28,088 WARN L194 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:29,091 WARN L194 SmtUtils]: Spent 994.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 67 [2020-11-07 06:27:29,780 WARN L194 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 59 [2020-11-07 06:27:30,866 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-11-07 06:27:31,576 WARN L194 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-11-07 06:27:32,253 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 53 [2020-11-07 06:27:33,369 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-11-07 06:27:34,101 WARN L194 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 56 [2020-11-07 06:27:34,878 WARN L194 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:27:37,992 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:38,621 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:27:39,255 WARN L194 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:27:41,142 WARN L194 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:27:41,778 WARN L194 SmtUtils]: Spent 628.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:27:43,676 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:27:45,566 WARN L194 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:27:46,178 WARN L194 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:27:46,802 WARN L194 SmtUtils]: Spent 615.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:27:47,540 WARN L194 SmtUtils]: Spent 730.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-11-07 06:27:48,268 WARN L194 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 55 [2020-11-07 06:27:48,974 WARN L194 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 51 [2020-11-07 06:27:49,573 WARN L194 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 55 [2020-11-07 06:27:50,213 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-11-07 06:27:51,082 WARN L194 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-11-07 06:27:52,016 WARN L194 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-11-07 06:27:55,204 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:58,345 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:27:59,283 WARN L194 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-11-07 06:28:00,176 WARN L194 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 57 [2020-11-07 06:28:03,312 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:28:06,439 WARN L194 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:28:08,430 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:28:09,071 WARN L194 SmtUtils]: Spent 631.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:28:09,713 WARN L194 SmtUtils]: Spent 633.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:28:10,341 WARN L194 SmtUtils]: Spent 618.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:28:12,242 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:28:12,876 WARN L194 SmtUtils]: Spent 625.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:28:14,792 WARN L194 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:28:16,700 WARN L194 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:28:17,344 WARN L194 SmtUtils]: Spent 635.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:28:18,174 WARN L194 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 55 [2020-11-07 06:28:19,112 WARN L194 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-11-07 06:28:19,943 WARN L194 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-11-07 06:28:20,750 WARN L194 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-11-07 06:28:21,487 WARN L194 SmtUtils]: Spent 720.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-11-07 06:28:22,597 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-11-07 06:28:23,610 WARN L194 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 179 DAG size of output: 55 [2020-11-07 06:28:24,302 WARN L194 SmtUtils]: Spent 683.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-11-07 06:28:25,141 WARN L194 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-11-07 06:28:25,808 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-11-07 06:28:26,534 WARN L194 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-11-07 06:28:27,279 WARN L194 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-11-07 06:28:27,927 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-11-07 06:28:29,068 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 220 DAG size of output: 63 [2020-11-07 06:28:29,856 WARN L194 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-11-07 06:28:30,852 WARN L194 SmtUtils]: Spent 988.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 71 [2020-11-07 06:28:32,028 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 186 DAG size of output: 62 [2020-11-07 06:28:32,820 WARN L194 SmtUtils]: Spent 783.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-11-07 06:28:33,460 WARN L194 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 50 [2020-11-07 06:28:34,064 WARN L194 SmtUtils]: Spent 596.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 51 [2020-11-07 06:28:35,105 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 184 DAG size of output: 69 [2020-11-07 06:28:35,856 WARN L194 SmtUtils]: Spent 743.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 56 [2020-11-07 06:28:36,881 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 181 DAG size of output: 66 [2020-11-07 06:28:37,600 WARN L194 SmtUtils]: Spent 710.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-11-07 06:28:38,370 WARN L194 SmtUtils]: Spent 760.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 51 [2020-11-07 06:28:39,018 WARN L194 SmtUtils]: Spent 640.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 53 [2020-11-07 06:28:42,237 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:28:42,865 WARN L194 SmtUtils]: Spent 620.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-11-07 06:28:43,626 WARN L194 SmtUtils]: Spent 752.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-11-07 06:28:45,526 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:28:47,398 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:28:49,362 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 329 DAG size of output: 57 [2020-11-07 06:29:07,923 WARN L194 SmtUtils]: Spent 18.53 s on a formula simplification. DAG size of input: 627 DAG size of output: 192 [2020-11-07 06:29:26,704 WARN L194 SmtUtils]: Spent 18.75 s on a formula simplification. DAG size of input: 627 DAG size of output: 192 [2020-11-07 06:29:27,413 WARN L194 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-11-07 06:29:28,055 WARN L194 SmtUtils]: Spent 632.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:29:28,866 WARN L194 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-11-07 06:29:31,967 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:29:35,075 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:29:38,165 WARN L194 SmtUtils]: Spent 3.08 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:29:39,331 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-11-07 06:29:40,157 WARN L194 SmtUtils]: Spent 817.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 53 [2020-11-07 06:29:40,918 WARN L194 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-11-07 06:29:41,995 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 211 DAG size of output: 56 [2020-11-07 06:29:42,838 WARN L194 SmtUtils]: Spent 833.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 57 [2020-11-07 06:29:43,497 WARN L194 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-11-07 06:29:44,170 WARN L194 SmtUtils]: Spent 662.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:29:46,138 WARN L194 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 326 DAG size of output: 58 [2020-11-07 06:29:48,059 WARN L194 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:29:50,048 WARN L194 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:29:50,718 WARN L194 SmtUtils]: Spent 661.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:29:51,373 WARN L194 SmtUtils]: Spent 644.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:29:52,029 WARN L194 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:29:54,020 WARN L194 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:29:54,698 WARN L194 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:29:57,127 WARN L194 SmtUtils]: Spent 2.42 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-11-07 06:29:59,141 WARN L194 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:29:59,912 WARN L194 SmtUtils]: Spent 763.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 62 [2020-11-07 06:30:00,894 WARN L194 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-11-07 06:30:01,775 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-11-07 06:30:05,077 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:06,009 WARN L194 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:30:07,197 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-11-07 06:30:08,413 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2020-11-07 06:30:10,330 WARN L194 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:30:11,012 WARN L194 SmtUtils]: Spent 674.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:30:11,674 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:13,674 WARN L194 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:14,340 WARN L194 SmtUtils]: Spent 658.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:16,343 WARN L194 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:18,354 WARN L194 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:20,387 WARN L194 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:21,069 WARN L194 SmtUtils]: Spent 673.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:30:23,026 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-11-07 06:30:23,716 WARN L194 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:30:24,394 WARN L194 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:26,463 WARN L194 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:27,127 WARN L194 SmtUtils]: Spent 656.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:29,162 WARN L194 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:31,193 WARN L194 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:34,575 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:35,562 WARN L194 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 53 [2020-11-07 06:30:38,908 WARN L194 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:39,776 WARN L194 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 52 [2020-11-07 06:30:40,753 WARN L194 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-11-07 06:30:44,120 WARN L194 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:47,484 WARN L194 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:48,284 WARN L194 SmtUtils]: Spent 791.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 56 [2020-11-07 06:30:51,668 WARN L194 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:55,073 WARN L194 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:30:55,734 WARN L194 SmtUtils]: Spent 652.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-11-07 06:30:57,786 WARN L194 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:30:58,464 WARN L194 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:59,139 WARN L194 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:30:59,928 WARN L194 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-11-07 06:31:03,192 WARN L194 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:31:03,838 WARN L194 SmtUtils]: Spent 638.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-11-07 06:31:04,503 WARN L194 SmtUtils]: Spent 657.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-11-07 06:31:05,671 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 184 DAG size of output: 64 [2020-11-07 06:31:08,907 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:31:12,131 WARN L194 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:31:13,104 WARN L194 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 60 [2020-11-07 06:31:13,920 WARN L194 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-11-07 06:31:17,135 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:31:17,840 WARN L194 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 54 [2020-11-07 06:31:18,567 WARN L194 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-11-07 06:31:19,460 WARN L194 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 55 [2020-11-07 06:31:22,911 WARN L194 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:31:26,337 WARN L194 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:31:27,109 WARN L194 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-11-07 06:31:28,341 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 220 DAG size of output: 63 [2020-11-07 06:31:29,870 WARN L194 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 240 DAG size of output: 59 [2020-11-07 06:31:31,086 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 231 DAG size of output: 61 [2020-11-07 06:31:31,920 WARN L194 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 53 [2020-11-07 06:31:32,631 WARN L194 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-11-07 06:31:33,234 WARN L194 SmtUtils]: Spent 590.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 43 [2020-11-07 06:31:35,349 WARN L194 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:31:37,420 WARN L194 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:31:39,515 WARN L194 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-11-07 06:31:40,113 WARN L194 SmtUtils]: Spent 592.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 43 [2020-11-07 06:31:40,844 WARN L194 SmtUtils]: Spent 721.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-11-07 06:31:41,542 WARN L194 SmtUtils]: Spent 690.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-11-07 06:31:42,332 WARN L194 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-11-07 06:31:43,510 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 221 DAG size of output: 60 [2020-11-07 06:31:44,173 WARN L194 SmtUtils]: Spent 654.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 53 [2020-11-07 06:31:47,447 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-11-07 06:31:48,301 WARN L194 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 57 [2020-11-07 06:31:51,838 WARN L194 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:31:55,338 WARN L194 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:31:56,169 WARN L194 SmtUtils]: Spent 823.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 60 [2020-11-07 06:31:59,659 WARN L194 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:00,465 WARN L194 SmtUtils]: Spent 798.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-11-07 06:32:01,313 WARN L194 SmtUtils]: Spent 826.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 67 [2020-11-07 06:32:02,066 WARN L194 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 59 [2020-11-07 06:32:03,043 WARN L194 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-11-07 06:32:06,575 WARN L194 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:07,595 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 185 DAG size of output: 57 [2020-11-07 06:32:08,317 WARN L194 SmtUtils]: Spent 713.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 53 [2020-11-07 06:32:09,292 WARN L194 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-11-07 06:32:10,459 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 211 DAG size of output: 56 [2020-11-07 06:32:11,270 WARN L194 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 51 [2020-11-07 06:32:12,398 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 185 DAG size of output: 71 [2020-11-07 06:32:13,290 WARN L194 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-11-07 06:32:16,819 WARN L194 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:20,386 WARN L194 SmtUtils]: Spent 3.56 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:23,932 WARN L194 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:27,458 WARN L194 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-11-07 06:32:28,519 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 177 DAG size of output: 60