/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-b8ad66e [2020-10-24 02:08:15,610 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-24 02:08:15,614 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-24 02:08:15,672 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-10-24 02:08:15,701 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-24 02:08:15,704 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-24 02:08:15,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-24 02:08:15,708 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-24 02:08:15,709 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-24 02:08:15,713 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-24 02:08:15,721 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-24 02:08:15,727 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-24 02:08:15,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-24 02:08:15,732 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-24 02:08:15,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-24 02:08:15,736 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-24 02:08:15,745 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-24 02:08:15,757 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-24 02:08:15,758 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-24 02:08:15,758 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-24 02:08:15,759 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-24 02:08:15,781 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-24 02:08:15,781 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-24 02:08:15,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-24 02:08:15,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-24 02:08:15,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-24 02:08:15,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-24 02:08:15,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-24 02:08:15,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-24 02:08:15,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-24 02:08:15,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-24 02:08:15,789 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-24 02:08:15,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-24 02:08:15,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-24 02:08:15,790 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-24 02:08:15,790 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-24 02:08:15,790 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-24 02:08:15,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-24 02:08:15,791 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-24 02:08:15,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-24 02:08:15,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-24 02:08:15,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-24 02:08:15,791 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-24 02:08:15,792 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-10-24 02:08:16,169 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-24 02:08:16,222 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-24 02:08:16,225 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-24 02:08:16,226 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-24 02:08:16,227 INFO L275 PluginConnector]: CDTParser initialized [2020-10-24 02:08:16,228 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-10-24 02:08:16,299 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c82f7427/61cb6e1a9b7641e38091902ee4b79d73/FLAG0c283d7d6 [2020-10-24 02:08:16,998 INFO L306 CDTParser]: Found 1 translation units. [2020-10-24 02:08:16,999 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label40.c [2020-10-24 02:08:17,030 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c82f7427/61cb6e1a9b7641e38091902ee4b79d73/FLAG0c283d7d6 [2020-10-24 02:08:17,294 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3c82f7427/61cb6e1a9b7641e38091902ee4b79d73 [2020-10-24 02:08:17,300 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-24 02:08:17,308 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-24 02:08:17,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-24 02:08:17,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-24 02:08:17,319 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-24 02:08:17,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:08:17" (1/1) ... [2020-10-24 02:08:17,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50819e28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:17, skipping insertion in model container [2020-10-24 02:08:17,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:08:17" (1/1) ... [2020-10-24 02:08:17,334 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-24 02:08:17,405 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-24 02:08:17,910 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:08:17,923 INFO L203 MainTranslator]: Completed pre-run [2020-10-24 02:08:18,139 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-24 02:08:18,160 INFO L208 MainTranslator]: Completed translation [2020-10-24 02:08:18,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18 WrapperNode [2020-10-24 02:08:18,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-24 02:08:18,162 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-24 02:08:18,162 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-24 02:08:18,162 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-24 02:08:18,176 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,176 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,212 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,264 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,279 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (1/1) ... [2020-10-24 02:08:18,291 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-24 02:08:18,292 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-24 02:08:18,292 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-24 02:08:18,292 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-24 02:08:18,293 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (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 [2020-10-24 02:08:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-24 02:08:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-24 02:08:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-24 02:08:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-24 02:08:18,381 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-24 02:08:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-24 02:08:18,381 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-24 02:08:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-24 02:08:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-24 02:08:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-24 02:08:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-24 02:08:18,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-24 02:08:18,383 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-24 02:08:18,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-24 02:08:20,159 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-24 02:08:20,159 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-24 02:08:20,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:20 BoogieIcfgContainer [2020-10-24 02:08:20,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-24 02:08:20,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-24 02:08:20,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-24 02:08:20,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-24 02:08:20,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:08:17" (1/3) ... [2020-10-24 02:08:20,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a7b825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:20, skipping insertion in model container [2020-10-24 02:08:20,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:08:18" (2/3) ... [2020-10-24 02:08:20,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45a7b825 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:08:20, skipping insertion in model container [2020-10-24 02:08:20,176 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:08:20" (3/3) ... [2020-10-24 02:08:20,177 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label40.c [2020-10-24 02:08:20,190 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-24 02:08:20,201 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-24 02:08:20,217 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-24 02:08:20,252 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-24 02:08:20,252 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-24 02:08:20,252 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-24 02:08:20,252 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-24 02:08:20,252 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-24 02:08:20,253 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-24 02:08:20,253 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-24 02:08:20,253 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-24 02:08:20,278 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states. [2020-10-24 02:08:20,291 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2020-10-24 02:08:20,292 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:20,293 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] [2020-10-24 02:08:20,293 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:20,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:20,300 INFO L82 PathProgramCache]: Analyzing trace with hash -91633356, now seen corresponding path program 1 times [2020-10-24 02:08:20,310 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:20,310 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2091096452] [2020-10-24 02:08:20,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:20,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:20,824 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 61 [2020-10-24 02:08:20,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:20,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:20,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:08:20,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2091096452] [2020-10-24 02:08:20,901 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:08:20,901 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-24 02:08:20,902 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [840129704] [2020-10-24 02:08:20,908 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:08:20,908 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:20,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:08:20,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:08:20,928 INFO L87 Difference]: Start difference. First operand 468 states. Second operand 5 states. [2020-10-24 02:08:21,138 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-10-24 02:08:24,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:24,567 INFO L93 Difference]: Finished difference Result 1239 states and 1811 transitions. [2020-10-24 02:08:24,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-24 02:08:24,569 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 77 [2020-10-24 02:08:24,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:24,593 INFO L225 Difference]: With dead ends: 1239 [2020-10-24 02:08:24,593 INFO L226 Difference]: Without dead ends: 716 [2020-10-24 02:08:24,611 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:08:24,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-10-24 02:08:24,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 704. [2020-10-24 02:08:24,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 704 states. [2020-10-24 02:08:24,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 704 states to 704 states and 935 transitions. [2020-10-24 02:08:24,875 INFO L78 Accepts]: Start accepts. Automaton has 704 states and 935 transitions. Word has length 77 [2020-10-24 02:08:24,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:24,877 INFO L481 AbstractCegarLoop]: Abstraction has 704 states and 935 transitions. [2020-10-24 02:08:24,877 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:08:24,877 INFO L276 IsEmpty]: Start isEmpty. Operand 704 states and 935 transitions. [2020-10-24 02:08:24,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-24 02:08:24,896 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:24,896 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] [2020-10-24 02:08:24,897 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-24 02:08:24,897 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:24,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:24,898 INFO L82 PathProgramCache]: Analyzing trace with hash 1561223428, now seen corresponding path program 1 times [2020-10-24 02:08:24,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:24,899 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [222909661] [2020-10-24 02:08:24,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:25,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:25,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:25,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:25,433 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:08:25,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [222909661] [2020-10-24 02:08:25,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:08:25,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-24 02:08:25,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547433174] [2020-10-24 02:08:25,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-24 02:08:25,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:25,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-24 02:08:25,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-24 02:08:25,438 INFO L87 Difference]: Start difference. First operand 704 states and 935 transitions. Second operand 8 states. [2020-10-24 02:08:28,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:28,340 INFO L93 Difference]: Finished difference Result 1569 states and 2140 transitions. [2020-10-24 02:08:28,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:08:28,345 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 160 [2020-10-24 02:08:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:28,358 INFO L225 Difference]: With dead ends: 1569 [2020-10-24 02:08:28,359 INFO L226 Difference]: Without dead ends: 888 [2020-10-24 02:08:28,365 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 [2020-10-24 02:08:28,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 888 states. [2020-10-24 02:08:28,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 888 to 862. [2020-10-24 02:08:28,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 862 states. [2020-10-24 02:08:28,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 862 states to 862 states and 1099 transitions. [2020-10-24 02:08:28,585 INFO L78 Accepts]: Start accepts. Automaton has 862 states and 1099 transitions. Word has length 160 [2020-10-24 02:08:28,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:28,587 INFO L481 AbstractCegarLoop]: Abstraction has 862 states and 1099 transitions. [2020-10-24 02:08:28,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-24 02:08:28,588 INFO L276 IsEmpty]: Start isEmpty. Operand 862 states and 1099 transitions. [2020-10-24 02:08:28,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-10-24 02:08:28,599 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:28,600 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] [2020-10-24 02:08:28,600 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-24 02:08:28,600 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:28,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:28,602 INFO L82 PathProgramCache]: Analyzing trace with hash 203694031, now seen corresponding path program 1 times [2020-10-24 02:08:28,602 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:28,602 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [934131153] [2020-10-24 02:08:28,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:28,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:28,793 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:28,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:28,814 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:28,892 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 51 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:08:28,893 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [934131153] [2020-10-24 02:08:28,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:08:28,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:08:28,898 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745046555] [2020-10-24 02:08:28,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:08:28,902 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:28,903 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:08:28,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:08:28,907 INFO L87 Difference]: Start difference. First operand 862 states and 1099 transitions. Second operand 5 states. [2020-10-24 02:08:31,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:31,550 INFO L93 Difference]: Finished difference Result 2359 states and 3137 transitions. [2020-10-24 02:08:31,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:08:31,551 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 166 [2020-10-24 02:08:31,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:31,569 INFO L225 Difference]: With dead ends: 2359 [2020-10-24 02:08:31,569 INFO L226 Difference]: Without dead ends: 1520 [2020-10-24 02:08:31,573 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 [2020-10-24 02:08:31,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1520 states. [2020-10-24 02:08:31,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1520 to 1326. [2020-10-24 02:08:31,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1326 states. [2020-10-24 02:08:31,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1326 states to 1326 states and 1664 transitions. [2020-10-24 02:08:31,832 INFO L78 Accepts]: Start accepts. Automaton has 1326 states and 1664 transitions. Word has length 166 [2020-10-24 02:08:31,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:31,833 INFO L481 AbstractCegarLoop]: Abstraction has 1326 states and 1664 transitions. [2020-10-24 02:08:31,833 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:08:31,833 INFO L276 IsEmpty]: Start isEmpty. Operand 1326 states and 1664 transitions. [2020-10-24 02:08:31,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-24 02:08:31,837 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:31,838 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] [2020-10-24 02:08:31,838 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-24 02:08:31,838 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:31,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:31,839 INFO L82 PathProgramCache]: Analyzing trace with hash 67452355, now seen corresponding path program 1 times [2020-10-24 02:08:31,839 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:31,839 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1553007123] [2020-10-24 02:08:31,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:31,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:31,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:31,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:31,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:32,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:32,121 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:08:32,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1553007123] [2020-10-24 02:08:32,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:08:32,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-24 02:08:32,122 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086539645] [2020-10-24 02:08:32,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-24 02:08:32,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:32,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-24 02:08:32,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-24 02:08:32,124 INFO L87 Difference]: Start difference. First operand 1326 states and 1664 transitions. Second operand 7 states. [2020-10-24 02:08:35,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:35,118 INFO L93 Difference]: Finished difference Result 3161 states and 4104 transitions. [2020-10-24 02:08:35,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-24 02:08:35,119 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-24 02:08:35,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:35,138 INFO L225 Difference]: With dead ends: 3161 [2020-10-24 02:08:35,139 INFO L226 Difference]: Without dead ends: 1858 [2020-10-24 02:08:35,146 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-24 02:08:35,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1858 states. [2020-10-24 02:08:35,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1858 to 1496. [2020-10-24 02:08:35,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1496 states. [2020-10-24 02:08:35,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1496 states to 1496 states and 1750 transitions. [2020-10-24 02:08:35,400 INFO L78 Accepts]: Start accepts. Automaton has 1496 states and 1750 transitions. Word has length 175 [2020-10-24 02:08:35,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:35,401 INFO L481 AbstractCegarLoop]: Abstraction has 1496 states and 1750 transitions. [2020-10-24 02:08:35,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-24 02:08:35,401 INFO L276 IsEmpty]: Start isEmpty. Operand 1496 states and 1750 transitions. [2020-10-24 02:08:35,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-24 02:08:35,405 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:35,405 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] [2020-10-24 02:08:35,405 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-24 02:08:35,405 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:35,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:35,406 INFO L82 PathProgramCache]: Analyzing trace with hash -1404497972, now seen corresponding path program 1 times [2020-10-24 02:08:35,406 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:35,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1606834453] [2020-10-24 02:08:35,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:35,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:35,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:35,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:35,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:36,148 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-24 02:08:36,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1606834453] [2020-10-24 02:08:36,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-24 02:08:36,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-24 02:08:36,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658202102] [2020-10-24 02:08:36,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-24 02:08:36,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:36,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-24 02:08:36,152 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-10-24 02:08:36,152 INFO L87 Difference]: Start difference. First operand 1496 states and 1750 transitions. Second operand 12 states. [2020-10-24 02:08:36,841 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 75 [2020-10-24 02:08:37,053 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 80 [2020-10-24 02:08:37,529 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-24 02:08:38,425 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 79 [2020-10-24 02:08:38,697 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 86 [2020-10-24 02:08:38,898 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2020-10-24 02:08:39,370 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2020-10-24 02:08:39,574 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2020-10-24 02:08:41,811 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 78 [2020-10-24 02:08:42,043 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 83 [2020-10-24 02:08:43,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:43,984 INFO L93 Difference]: Finished difference Result 4700 states and 5607 transitions. [2020-10-24 02:08:43,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2020-10-24 02:08:43,984 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 204 [2020-10-24 02:08:43,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:44,011 INFO L225 Difference]: With dead ends: 4700 [2020-10-24 02:08:44,012 INFO L226 Difference]: Without dead ends: 3227 [2020-10-24 02:08:44,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 258 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=265, Invalid=857, Unknown=0, NotChecked=0, Total=1122 [2020-10-24 02:08:44,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2020-10-24 02:08:44,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 2473. [2020-10-24 02:08:44,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2473 states. [2020-10-24 02:08:44,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2473 states to 2473 states and 2924 transitions. [2020-10-24 02:08:44,630 INFO L78 Accepts]: Start accepts. Automaton has 2473 states and 2924 transitions. Word has length 204 [2020-10-24 02:08:44,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:44,631 INFO L481 AbstractCegarLoop]: Abstraction has 2473 states and 2924 transitions. [2020-10-24 02:08:44,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-24 02:08:44,631 INFO L276 IsEmpty]: Start isEmpty. Operand 2473 states and 2924 transitions. [2020-10-24 02:08:44,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-10-24 02:08:44,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:44,638 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] [2020-10-24 02:08:44,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-24 02:08:44,638 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:44,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:44,639 INFO L82 PathProgramCache]: Analyzing trace with hash -662844622, now seen corresponding path program 1 times [2020-10-24 02:08:44,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:44,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1567522820] [2020-10-24 02:08:44,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:44,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:44,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:44,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:44,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:44,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:44,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-24 02:08:44,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-24 02:08:45,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1567522820] [2020-10-24 02:08:45,124 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:08:45,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 02:08:45,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816420178] [2020-10-24 02:08:45,125 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:08:45,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:45,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:08:45,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:08:45,126 INFO L87 Difference]: Start difference. First operand 2473 states and 2924 transitions. Second operand 10 states. [2020-10-24 02:08:49,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:49,839 INFO L93 Difference]: Finished difference Result 5801 states and 6971 transitions. [2020-10-24 02:08:49,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 02:08:49,840 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 278 [2020-10-24 02:08:49,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:49,863 INFO L225 Difference]: With dead ends: 5801 [2020-10-24 02:08:49,864 INFO L226 Difference]: Without dead ends: 3319 [2020-10-24 02:08:49,873 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 [2020-10-24 02:08:49,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3319 states. [2020-10-24 02:08:50,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3319 to 3120. [2020-10-24 02:08:50,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-10-24 02:08:50,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3728 transitions. [2020-10-24 02:08:50,688 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3728 transitions. Word has length 278 [2020-10-24 02:08:50,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:50,688 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3728 transitions. [2020-10-24 02:08:50,688 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:08:50,689 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3728 transitions. [2020-10-24 02:08:50,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 284 [2020-10-24 02:08:50,696 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:50,697 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] [2020-10-24 02:08:50,697 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-24 02:08:50,697 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:50,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:50,698 INFO L82 PathProgramCache]: Analyzing trace with hash 810975219, now seen corresponding path program 1 times [2020-10-24 02:08:50,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:50,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2144587162] [2020-10-24 02:08:50,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:50,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:50,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:51,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:51,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-24 02:08:51,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:51,554 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 177 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:08:51,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2144587162] [2020-10-24 02:08:51,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:08:51,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-24 02:08:51,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671319628] [2020-10-24 02:08:51,557 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-10-24 02:08:51,557 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:51,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-10-24 02:08:51,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-10-24 02:08:51,558 INFO L87 Difference]: Start difference. First operand 3120 states and 3728 transitions. Second operand 11 states. [2020-10-24 02:08:52,197 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2020-10-24 02:08:52,728 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 78 [2020-10-24 02:08:53,806 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 76 [2020-10-24 02:08:55,219 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 77 [2020-10-24 02:08:55,859 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2020-10-24 02:08:57,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:08:57,991 INFO L93 Difference]: Finished difference Result 7773 states and 9519 transitions. [2020-10-24 02:08:57,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-24 02:08:57,992 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 283 [2020-10-24 02:08:57,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:08:58,023 INFO L225 Difference]: With dead ends: 7773 [2020-10-24 02:08:58,024 INFO L226 Difference]: Without dead ends: 4676 [2020-10-24 02:08:58,036 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=197, Invalid=505, Unknown=0, NotChecked=0, Total=702 [2020-10-24 02:08:58,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4676 states. [2020-10-24 02:08:58,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4676 to 3588. [2020-10-24 02:08:58,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3588 states. [2020-10-24 02:08:58,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3588 states to 3588 states and 4241 transitions. [2020-10-24 02:08:58,834 INFO L78 Accepts]: Start accepts. Automaton has 3588 states and 4241 transitions. Word has length 283 [2020-10-24 02:08:58,835 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:08:58,835 INFO L481 AbstractCegarLoop]: Abstraction has 3588 states and 4241 transitions. [2020-10-24 02:08:58,835 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-10-24 02:08:58,835 INFO L276 IsEmpty]: Start isEmpty. Operand 3588 states and 4241 transitions. [2020-10-24 02:08:58,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2020-10-24 02:08:58,844 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:08:58,845 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] [2020-10-24 02:08:58,845 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-24 02:08:58,845 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:08:58,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:08:58,846 INFO L82 PathProgramCache]: Analyzing trace with hash 1294379473, now seen corresponding path program 1 times [2020-10-24 02:08:58,846 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:08:58,846 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1307056606] [2020-10-24 02:08:58,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:08:58,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:59,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:08:59,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:59,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:08:59,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:59,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-24 02:08:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:08:59,290 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 186 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-24 02:08:59,290 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1307056606] [2020-10-24 02:08:59,290 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:08:59,291 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 02:08:59,291 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58865808] [2020-10-24 02:08:59,292 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:08:59,292 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:08:59,292 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:08:59,292 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:08:59,293 INFO L87 Difference]: Start difference. First operand 3588 states and 4241 transitions. Second operand 10 states. [2020-10-24 02:09:05,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:09:05,304 INFO L93 Difference]: Finished difference Result 8393 states and 10035 transitions. [2020-10-24 02:09:05,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-10-24 02:09:05,305 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 293 [2020-10-24 02:09:05,306 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:09:05,333 INFO L225 Difference]: With dead ends: 8393 [2020-10-24 02:09:05,333 INFO L226 Difference]: Without dead ends: 4516 [2020-10-24 02:09:05,346 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 86 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-24 02:09:05,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4516 states. [2020-10-24 02:09:06,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4516 to 3578. [2020-10-24 02:09:06,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3578 states. [2020-10-24 02:09:06,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3578 states to 3578 states and 4210 transitions. [2020-10-24 02:09:06,345 INFO L78 Accepts]: Start accepts. Automaton has 3578 states and 4210 transitions. Word has length 293 [2020-10-24 02:09:06,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:09:06,345 INFO L481 AbstractCegarLoop]: Abstraction has 3578 states and 4210 transitions. [2020-10-24 02:09:06,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:09:06,345 INFO L276 IsEmpty]: Start isEmpty. Operand 3578 states and 4210 transitions. [2020-10-24 02:09:06,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2020-10-24 02:09:06,352 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:09:06,352 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] [2020-10-24 02:09:06,353 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-24 02:09:06,353 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:09:06,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:09:06,353 INFO L82 PathProgramCache]: Analyzing trace with hash -1779213004, now seen corresponding path program 1 times [2020-10-24 02:09:06,354 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:09:06,354 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1925604856] [2020-10-24 02:09:06,354 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:09:06,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:06,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:09:06,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:06,628 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:09:06,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:06,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-24 02:09:06,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-24 02:09:06,882 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1925604856] [2020-10-24 02:09:06,882 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:09:06,882 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 02:09:06,882 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533595074] [2020-10-24 02:09:06,883 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:09:06,883 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:09:06,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:09:06,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:09:06,884 INFO L87 Difference]: Start difference. First operand 3578 states and 4210 transitions. Second operand 10 states. [2020-10-24 02:09:12,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:09:12,237 INFO L93 Difference]: Finished difference Result 7870 states and 9387 transitions. [2020-10-24 02:09:12,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-24 02:09:12,244 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 328 [2020-10-24 02:09:12,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:09:12,267 INFO L225 Difference]: With dead ends: 7870 [2020-10-24 02:09:12,267 INFO L226 Difference]: Without dead ends: 4273 [2020-10-24 02:09:12,276 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=83, Invalid=127, Unknown=0, NotChecked=0, Total=210 [2020-10-24 02:09:12,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4273 states. [2020-10-24 02:09:13,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4273 to 4073. [2020-10-24 02:09:13,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4073 states. [2020-10-24 02:09:13,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4073 states to 4073 states and 4818 transitions. [2020-10-24 02:09:13,511 INFO L78 Accepts]: Start accepts. Automaton has 4073 states and 4818 transitions. Word has length 328 [2020-10-24 02:09:13,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:09:13,511 INFO L481 AbstractCegarLoop]: Abstraction has 4073 states and 4818 transitions. [2020-10-24 02:09:13,512 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:09:13,512 INFO L276 IsEmpty]: Start isEmpty. Operand 4073 states and 4818 transitions. [2020-10-24 02:09:13,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-10-24 02:09:13,520 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:09:13,521 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] [2020-10-24 02:09:13,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-24 02:09:13,521 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:09:13,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:09:13,522 INFO L82 PathProgramCache]: Analyzing trace with hash 74203030, now seen corresponding path program 1 times [2020-10-24 02:09:13,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:09:13,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089215979] [2020-10-24 02:09:13,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:09:13,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:13,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:09:13,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:13,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:09:13,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:13,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-24 02:09:13,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:13,938 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-24 02:09:13,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089215979] [2020-10-24 02:09:13,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:09:13,939 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-24 02:09:13,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1579134273] [2020-10-24 02:09:13,939 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-24 02:09:13,940 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:09:13,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-24 02:09:13,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-24 02:09:13,941 INFO L87 Difference]: Start difference. First operand 4073 states and 4818 transitions. Second operand 5 states. [2020-10-24 02:09:17,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:09:17,341 INFO L93 Difference]: Finished difference Result 8909 states and 10760 transitions. [2020-10-24 02:09:17,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-24 02:09:17,346 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 347 [2020-10-24 02:09:17,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:09:17,374 INFO L225 Difference]: With dead ends: 8909 [2020-10-24 02:09:17,374 INFO L226 Difference]: Without dead ends: 4859 [2020-10-24 02:09:17,385 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 [2020-10-24 02:09:17,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4859 states. [2020-10-24 02:09:18,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4859 to 4531. [2020-10-24 02:09:18,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4531 states. [2020-10-24 02:09:18,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4531 states to 4531 states and 5276 transitions. [2020-10-24 02:09:18,628 INFO L78 Accepts]: Start accepts. Automaton has 4531 states and 5276 transitions. Word has length 347 [2020-10-24 02:09:18,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:09:18,629 INFO L481 AbstractCegarLoop]: Abstraction has 4531 states and 5276 transitions. [2020-10-24 02:09:18,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-24 02:09:18,629 INFO L276 IsEmpty]: Start isEmpty. Operand 4531 states and 5276 transitions. [2020-10-24 02:09:18,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 353 [2020-10-24 02:09:18,637 INFO L414 BasicCegarLoop]: Found error trace [2020-10-24 02:09:18,638 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] [2020-10-24 02:09:18,638 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-24 02:09:18,638 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-24 02:09:18,638 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-24 02:09:18,639 INFO L82 PathProgramCache]: Analyzing trace with hash -512231299, now seen corresponding path program 1 times [2020-10-24 02:09:18,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-24 02:09:18,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1560382535] [2020-10-24 02:09:18,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-24 02:09:18,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:18,849 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-24 02:09:18,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:18,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-24 02:09:18,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:18,945 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-10-24 02:09:18,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-24 02:09:19,185 INFO L134 CoverageAnalysis]: Checked inductivity of 225 backedges. 107 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-10-24 02:09:19,186 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1560382535] [2020-10-24 02:09:19,186 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-24 02:09:19,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-10-24 02:09:19,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797067163] [2020-10-24 02:09:19,187 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-24 02:09:19,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-24 02:09:19,188 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-24 02:09:19,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2020-10-24 02:09:19,188 INFO L87 Difference]: Start difference. First operand 4531 states and 5276 transitions. Second operand 10 states. [2020-10-24 02:09:22,960 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 71 [2020-10-24 02:09:26,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-24 02:09:26,711 INFO L93 Difference]: Finished difference Result 10668 states and 12771 transitions. [2020-10-24 02:09:26,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-10-24 02:09:26,712 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 352 [2020-10-24 02:09:26,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-24 02:09:26,723 INFO L225 Difference]: With dead ends: 10668 [2020-10-24 02:09:26,724 INFO L226 Difference]: Without dead ends: 0 [2020-10-24 02:09:26,746 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=127, Invalid=253, Unknown=0, NotChecked=0, Total=380 [2020-10-24 02:09:26,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-24 02:09:26,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-24 02:09:26,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-24 02:09:26,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-24 02:09:26,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 352 [2020-10-24 02:09:26,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-24 02:09:26,747 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-24 02:09:26,747 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-24 02:09:26,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-24 02:09:26,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-24 02:09:26,747 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-24 02:09:26,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-24 02:09:28,952 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 113 [2020-10-24 02:09:30,921 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2020-10-24 02:09:55,612 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:05,597 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:16,736 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:16,977 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:17,212 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:28,361 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:35,561 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-10-24 02:10:36,302 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-10-24 02:10:36,539 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 254 DAG size of output: 214 [2020-10-24 02:10:37,384 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 255 DAG size of output: 215 [2020-10-24 02:10:54,780 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 193 [2020-10-24 02:10:55,037 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 186 [2020-10-24 02:10:55,337 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 178 [2020-10-24 02:10:55,918 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 205 [2020-10-24 02:10:56,105 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 209 [2020-10-24 02:10:56,582 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 182 [2020-10-24 02:10:56,989 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 185 [2020-10-24 02:10:57,331 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 207 [2020-10-24 02:10:57,797 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 193 [2020-10-24 02:10:58,039 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 205 DAG size of output: 186 [2020-10-24 02:10:58,338 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 178 [2020-10-24 02:10:58,914 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 226 DAG size of output: 205 [2020-10-24 02:10:59,104 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 231 DAG size of output: 209 [2020-10-24 02:10:59,584 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 182 [2020-10-24 02:10:59,982 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 185 [2020-10-24 02:11:00,329 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 227 DAG size of output: 207 [2020-10-24 02:11:43,922 WARN L193 SmtUtils]: Spent 650.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-10-24 02:11:44,735 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-10-24 02:11:45,548 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-10-24 02:11:46,356 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 63 [2020-10-24 02:11:47,162 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-10-24 02:11:48,177 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-10-24 02:11:48,854 WARN L193 SmtUtils]: Spent 666.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:11:49,729 WARN L193 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-10-24 02:11:50,963 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-10-24 02:11:52,024 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-10-24 02:11:55,649 WARN L193 SmtUtils]: Spent 3.61 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:11:59,161 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:00,221 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:12:01,073 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-10-24 02:12:01,918 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 65 [2020-10-24 02:12:02,636 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 55 [2020-10-24 02:12:03,629 WARN L193 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-10-24 02:12:04,377 WARN L193 SmtUtils]: Spent 739.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 57 [2020-10-24 02:12:07,707 WARN L193 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:08,679 WARN L193 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 60 [2020-10-24 02:12:09,323 WARN L193 SmtUtils]: Spent 634.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:12:10,031 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 53 [2020-10-24 02:12:13,525 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:16,900 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:20,350 WARN L193 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:23,763 WARN L193 SmtUtils]: Spent 3.40 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:12:24,972 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 231 DAG size of output: 61 [2020-10-24 02:12:25,700 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 50 [2020-10-24 02:12:26,508 WARN L193 SmtUtils]: Spent 799.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2020-10-24 02:12:27,530 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 181 DAG size of output: 63 [2020-10-24 02:12:28,620 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-10-24 02:12:29,666 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-10-24 02:12:30,408 WARN L193 SmtUtils]: Spent 731.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:12:32,592 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:34,755 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:36,951 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:37,672 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:38,392 WARN L193 SmtUtils]: Spent 711.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:39,115 WARN L193 SmtUtils]: Spent 712.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:41,235 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:41,963 WARN L193 SmtUtils]: Spent 719.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:42,672 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:44,736 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:12:45,423 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:47,587 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 329 DAG size of output: 60 [2020-10-24 02:12:48,278 WARN L193 SmtUtils]: Spent 681.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:12:50,345 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:52,526 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:54,583 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:12:55,257 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:55,962 WARN L193 SmtUtils]: Spent 697.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:56,676 WARN L193 SmtUtils]: Spent 705.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:12:58,710 WARN L193 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:13:00,642 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:13:01,448 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 56 [2020-10-24 02:13:02,555 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 213 DAG size of output: 56 [2020-10-24 02:13:03,329 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-10-24 02:13:04,139 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 58 [2020-10-24 02:13:04,989 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 57 [2020-10-24 02:13:05,767 WARN L193 SmtUtils]: Spent 769.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-10-24 02:13:06,477 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-10-24 02:13:07,131 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-10-24 02:13:07,866 WARN L193 SmtUtils]: Spent 725.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 53 [2020-10-24 02:13:09,089 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 211 DAG size of output: 56 [2020-10-24 02:13:09,909 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-10-24 02:13:10,873 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 58 [2020-10-24 02:13:14,222 WARN L193 SmtUtils]: Spent 3.34 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:13:17,619 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:13:18,815 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 215 DAG size of output: 56 [2020-10-24 02:13:19,625 WARN L193 SmtUtils]: Spent 800.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-10-24 02:13:22,943 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:13:24,202 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 209 DAG size of output: 53 [2020-10-24 02:13:27,757 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:13:29,055 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-10-24 02:13:32,565 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:13:33,660 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 212 DAG size of output: 53 [2020-10-24 02:13:34,539 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 53 [2020-10-24 02:13:35,777 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-10-24 02:13:36,539 WARN L193 SmtUtils]: Spent 753.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 55 [2020-10-24 02:13:37,316 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-10-24 02:13:38,555 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 180 DAG size of output: 60 [2020-10-24 02:13:39,538 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 57 [2020-10-24 02:13:40,358 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:13:41,180 WARN L193 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-10-24 02:13:41,871 WARN L193 SmtUtils]: Spent 682.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-10-24 02:13:42,767 WARN L193 SmtUtils]: Spent 888.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-10-24 02:13:43,602 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 59 [2020-10-24 02:13:44,352 WARN L193 SmtUtils]: Spent 740.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-10-24 02:13:45,069 WARN L193 SmtUtils]: Spent 708.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:13:45,781 WARN L193 SmtUtils]: Spent 701.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:13:46,894 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-10-24 02:13:47,864 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-10-24 02:13:51,058 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:13:52,158 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 181 DAG size of output: 69 [2020-10-24 02:13:53,050 WARN L193 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-10-24 02:13:53,967 WARN L193 SmtUtils]: Spent 907.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 59 [2020-10-24 02:13:54,781 WARN L193 SmtUtils]: Spent 806.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-10-24 02:13:55,585 WARN L193 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 60 [2020-10-24 02:13:56,851 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 213 DAG size of output: 57 [2020-10-24 02:13:57,688 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 63 [2020-10-24 02:14:01,065 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:02,052 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:14:05,422 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:08,820 WARN L193 SmtUtils]: Spent 3.39 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:09,603 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-10-24 02:14:10,295 WARN L193 SmtUtils]: Spent 676.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:14:12,363 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:14:14,864 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-10-24 02:14:15,589 WARN L193 SmtUtils]: Spent 715.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 51 [2020-10-24 02:14:18,772 WARN L193 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:14:21,964 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:14:23,019 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-10-24 02:14:23,685 WARN L193 SmtUtils]: Spent 659.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 51 [2020-10-24 02:14:24,548 WARN L193 SmtUtils]: Spent 853.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-10-24 02:14:25,299 WARN L193 SmtUtils]: Spent 742.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-10-24 02:14:26,043 WARN L193 SmtUtils]: Spent 735.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 58 [2020-10-24 02:14:27,010 WARN L193 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-10-24 02:14:27,705 WARN L193 SmtUtils]: Spent 685.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:14:29,783 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:14:31,773 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:14:33,854 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:14:34,565 WARN L193 SmtUtils]: Spent 702.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:14:35,259 WARN L193 SmtUtils]: Spent 684.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:14:35,942 WARN L193 SmtUtils]: Spent 675.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:14:38,028 WARN L193 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:14:39,122 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-10-24 02:14:42,568 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:43,248 WARN L193 SmtUtils]: Spent 671.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-10-24 02:14:44,075 WARN L193 SmtUtils]: Spent 818.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 58 [2020-10-24 02:14:47,518 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:48,528 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:14:51,976 WARN L193 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:52,805 WARN L193 SmtUtils]: Spent 821.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 64 [2020-10-24 02:14:53,663 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 60 [2020-10-24 02:14:54,642 WARN L193 SmtUtils]: Spent 969.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-10-24 02:14:58,106 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:14:58,843 WARN L193 SmtUtils]: Spent 729.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-10-24 02:14:59,766 WARN L193 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-10-24 02:15:00,665 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 57 [2020-10-24 02:15:04,156 WARN L193 SmtUtils]: Spent 3.47 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:07,589 WARN L193 SmtUtils]: Spent 3.42 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:08,512 WARN L193 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 54 [2020-10-24 02:15:11,966 WARN L193 SmtUtils]: Spent 3.44 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:15,432 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:16,262 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 58 [2020-10-24 02:15:17,442 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:15:18,121 WARN L193 SmtUtils]: Spent 670.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:15:19,253 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 210 DAG size of output: 54 [2020-10-24 02:15:20,465 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 225 DAG size of output: 64 [2020-10-24 02:15:21,151 WARN L193 SmtUtils]: Spent 677.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 50 [2020-10-24 02:15:21,828 WARN L193 SmtUtils]: Spent 668.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:15:25,350 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:26,368 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-10-24 02:15:27,143 WARN L193 SmtUtils]: Spent 766.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 59 [2020-10-24 02:15:30,662 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:34,174 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:34,935 WARN L193 SmtUtils]: Spent 749.00 ms on a formula simplification. DAG size of input: 183 DAG size of output: 53 [2020-10-24 02:15:38,452 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:39,476 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 206 DAG size of output: 58 [2020-10-24 02:15:40,154 WARN L193 SmtUtils]: Spent 669.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 48 [2020-10-24 02:15:43,668 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:15:44,518 WARN L193 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 185 DAG size of output: 72 [2020-10-24 02:15:45,292 WARN L193 SmtUtils]: Spent 765.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-10-24 02:15:46,432 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-10-24 02:15:47,487 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:15:48,519 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:15:49,559 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:15:50,296 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:15:51,003 WARN L193 SmtUtils]: Spent 699.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:15:53,152 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:15:53,856 WARN L193 SmtUtils]: Spent 694.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:15:56,013 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:15:57,023 WARN L193 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-10-24 02:15:57,900 WARN L193 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 58 [2020-10-24 02:15:59,236 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 214 DAG size of output: 60 [2020-10-24 02:16:00,532 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-10-24 02:16:03,847 WARN L193 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:16:07,174 WARN L193 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:16:08,348 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 216 DAG size of output: 62 [2020-10-24 02:16:10,433 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:16:11,145 WARN L193 SmtUtils]: Spent 703.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:16:13,305 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:16:15,550 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 329 DAG size of output: 60 [2020-10-24 02:16:17,710 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:16:18,435 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:16:20,620 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:16:21,345 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:16:22,072 WARN L193 SmtUtils]: Spent 718.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:16:22,804 WARN L193 SmtUtils]: Spent 723.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:16:25,004 WARN L193 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:16:25,757 WARN L193 SmtUtils]: Spent 744.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:16:28,408 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-10-24 02:16:29,711 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-10-24 02:16:30,692 WARN L193 SmtUtils]: Spent 973.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:16:31,446 WARN L193 SmtUtils]: Spent 745.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:16:33,519 WARN L193 SmtUtils]: Spent 2.06 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:16:34,264 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:16:36,454 WARN L193 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:16:38,614 WARN L193 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 326 DAG size of output: 58 [2020-10-24 02:16:39,674 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:16:43,336 WARN L193 SmtUtils]: Spent 3.65 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:16:46,978 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:16:47,682 WARN L193 SmtUtils]: Spent 696.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 56 [2020-10-24 02:16:48,857 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-10-24 02:16:49,725 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 189 DAG size of output: 56 [2020-10-24 02:16:53,369 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:16:57,011 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:00,690 WARN L193 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:01,786 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 183 DAG size of output: 66 [2020-10-24 02:17:02,842 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:17:03,709 WARN L193 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 58 [2020-10-24 02:17:04,613 WARN L193 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 53 [2020-10-24 02:17:05,869 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 214 DAG size of output: 53 [2020-10-24 02:17:07,073 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-10-24 02:17:08,129 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 181 DAG size of output: 62 [2020-10-24 02:17:09,209 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 185 DAG size of output: 57 [2020-10-24 02:17:10,073 WARN L193 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 58 [2020-10-24 02:17:10,923 WARN L193 SmtUtils]: Spent 840.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 57 [2020-10-24 02:17:11,877 WARN L193 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 57 [2020-10-24 02:17:13,142 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 221 DAG size of output: 60 [2020-10-24 02:17:14,041 WARN L193 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-10-24 02:17:14,864 WARN L193 SmtUtils]: Spent 815.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-10-24 02:17:15,743 WARN L193 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-10-24 02:17:16,638 WARN L193 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 62 [2020-10-24 02:17:17,497 WARN L193 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-10-24 02:17:21,184 WARN L193 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:22,176 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-10-24 02:17:24,328 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:17:25,341 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-10-24 02:17:26,341 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 44 [2020-10-24 02:17:28,609 WARN L193 SmtUtils]: Spent 2.25 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:17:29,396 WARN L193 SmtUtils]: Spent 776.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:17:30,499 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 197 DAG size of output: 44 [2020-10-24 02:17:31,415 WARN L193 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 58 [2020-10-24 02:17:32,216 WARN L193 SmtUtils]: Spent 792.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 57 [2020-10-24 02:17:33,127 WARN L193 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 208 DAG size of output: 53 [2020-10-24 02:17:34,072 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:17:37,793 WARN L193 SmtUtils]: Spent 3.71 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:41,550 WARN L193 SmtUtils]: Spent 3.75 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:42,777 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 181 DAG size of output: 67 [2020-10-24 02:17:43,623 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 59 [2020-10-24 02:17:44,978 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-10-24 02:17:45,850 WARN L193 SmtUtils]: Spent 863.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-10-24 02:17:46,697 WARN L193 SmtUtils]: Spent 838.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 53 [2020-10-24 02:17:48,060 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-10-24 02:17:48,977 WARN L193 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 179 DAG size of output: 56 [2020-10-24 02:17:49,939 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:17:53,737 WARN L193 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:17:54,524 WARN L193 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:17:55,319 WARN L193 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:17:57,632 WARN L193 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:17:58,430 WARN L193 SmtUtils]: Spent 790.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:18:00,728 WARN L193 SmtUtils]: Spent 2.29 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:03,055 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:03,825 WARN L193 SmtUtils]: Spent 761.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:18:04,592 WARN L193 SmtUtils]: Spent 757.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:18:05,525 WARN L193 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 56 [2020-10-24 02:18:06,431 WARN L193 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 55 [2020-10-24 02:18:07,315 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 51 [2020-10-24 02:18:08,062 WARN L193 SmtUtils]: Spent 738.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 55 [2020-10-24 02:18:08,866 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-10-24 02:18:09,954 WARN L193 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 212 DAG size of output: 55 [2020-10-24 02:18:11,101 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-10-24 02:18:14,931 WARN L193 SmtUtils]: Spent 3.82 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:18:18,778 WARN L193 SmtUtils]: Spent 3.83 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:18:19,911 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-10-24 02:18:21,019 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 185 DAG size of output: 57 [2020-10-24 02:18:24,898 WARN L193 SmtUtils]: Spent 3.87 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:18:28,752 WARN L193 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:18:28,873 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 30 [2020-10-24 02:18:31,206 WARN L193 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:32,010 WARN L193 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:18:32,823 WARN L193 SmtUtils]: Spent 804.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:18:33,608 WARN L193 SmtUtils]: Spent 777.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:18:35,974 WARN L193 SmtUtils]: Spent 2.36 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:36,756 WARN L193 SmtUtils]: Spent 773.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:18:39,110 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:41,458 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:18:42,278 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:18:43,339 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 174 DAG size of output: 55 [2020-10-24 02:18:44,479 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 211 DAG size of output: 53 [2020-10-24 02:18:45,599 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-10-24 02:18:46,669 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 190 DAG size of output: 59 [2020-10-24 02:18:47,635 WARN L193 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 56 [2020-10-24 02:18:49,107 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-10-24 02:18:50,461 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 179 DAG size of output: 55 [2020-10-24 02:18:51,361 WARN L193 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-10-24 02:18:52,472 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-10-24 02:18:53,356 WARN L193 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 54 [2020-10-24 02:18:54,285 WARN L193 SmtUtils]: Spent 919.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 54 [2020-10-24 02:18:55,232 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 54 [2020-10-24 02:18:56,032 WARN L193 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-10-24 02:18:57,450 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 220 DAG size of output: 63 [2020-10-24 02:18:58,397 WARN L193 SmtUtils]: Spent 937.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 64 [2020-10-24 02:18:59,607 WARN L193 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 185 DAG size of output: 71 [2020-10-24 02:19:01,016 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 186 DAG size of output: 62 [2020-10-24 02:19:01,976 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-10-24 02:19:02,759 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 50 [2020-10-24 02:19:03,558 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 51 [2020-10-24 02:19:04,962 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 184 DAG size of output: 69 [2020-10-24 02:19:05,968 WARN L193 SmtUtils]: Spent 997.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 56 [2020-10-24 02:19:07,326 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 181 DAG size of output: 66 [2020-10-24 02:19:08,274 WARN L193 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 56 [2020-10-24 02:19:09,292 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 172 DAG size of output: 51 [2020-10-24 02:19:10,160 WARN L193 SmtUtils]: Spent 859.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 53 [2020-10-24 02:19:14,242 WARN L193 SmtUtils]: Spent 4.07 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:19:15,048 WARN L193 SmtUtils]: Spent 797.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 54 [2020-10-24 02:19:15,996 WARN L193 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 56 [2020-10-24 02:19:18,401 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:19:20,782 WARN L193 SmtUtils]: Spent 2.37 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:19:23,265 WARN L193 SmtUtils]: Spent 2.47 s on a formula simplification. DAG size of input: 329 DAG size of output: 57 [2020-10-24 02:19:46,017 WARN L193 SmtUtils]: Spent 22.71 s on a formula simplification. DAG size of input: 627 DAG size of output: 192 [2020-10-24 02:20:09,649 WARN L193 SmtUtils]: Spent 23.59 s on a formula simplification. DAG size of input: 627 DAG size of output: 192 [2020-10-24 02:20:10,581 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 60 [2020-10-24 02:20:11,419 WARN L193 SmtUtils]: Spent 829.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:20:12,454 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 182 DAG size of output: 64 [2020-10-24 02:20:16,389 WARN L193 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:20:20,337 WARN L193 SmtUtils]: Spent 3.94 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:20:24,246 WARN L193 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 419 DAG size of output: 75 [2020-10-24 02:20:25,763 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 222 DAG size of output: 57 [2020-10-24 02:20:26,892 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 178 DAG size of output: 53 [2020-10-24 02:20:27,921 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 217 DAG size of output: 52 [2020-10-24 02:20:29,373 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 211 DAG size of output: 56 [2020-10-24 02:20:30,476 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 187 DAG size of output: 57 [2020-10-24 02:20:31,329 WARN L193 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 184 DAG size of output: 53 [2020-10-24 02:20:32,165 WARN L193 SmtUtils]: Spent 825.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:20:34,745 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 326 DAG size of output: 58 [2020-10-24 02:20:37,245 WARN L193 SmtUtils]: Spent 2.49 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:20:39,866 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:20:40,788 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:20:41,669 WARN L193 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:20:42,488 WARN L193 SmtUtils]: Spent 811.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:20:45,111 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:20:46,021 WARN L193 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:20:49,180 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 365 DAG size of output: 65 [2020-10-24 02:20:51,758 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:20:52,776 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 177 DAG size of output: 62 [2020-10-24 02:20:54,067 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 179 DAG size of output: 58 [2020-10-24 02:20:55,252 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 210 DAG size of output: 53 [2020-10-24 02:20:59,570 WARN L193 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 417 DAG size of output: 76 [2020-10-24 02:21:00,842 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-10-24 02:21:02,438 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 213 DAG size of output: 54 [2020-10-24 02:21:04,066 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 190 DAG size of output: 65 [2020-10-24 02:21:06,579 WARN L193 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:21:07,505 WARN L193 SmtUtils]: Spent 916.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:21:08,405 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:21:11,105 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:11,935 WARN L193 SmtUtils]: Spent 822.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:21:14,605 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:17,294 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:19,918 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:20,839 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:21:23,381 WARN L193 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 328 DAG size of output: 54 [2020-10-24 02:21:24,300 WARN L193 SmtUtils]: Spent 910.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 55 [2020-10-24 02:21:25,144 WARN L193 SmtUtils]: Spent 834.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:21:27,818 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:28,718 WARN L193 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 202 DAG size of output: 43 [2020-10-24 02:21:31,380 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 325 DAG size of output: 57 [2020-10-24 02:21:34,037 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 325 DAG size of output: 57