/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/Problem02_label05.c -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-36cd7be [2021-02-23 23:26:52,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-02-23 23:26:52,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-02-23 23:26:52,260 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-02-23 23:26:52,346 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-02-23 23:26:52,348 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-02-23 23:26:52,348 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-02-23 23:26:52,349 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2021-02-23 23:26:52,369 INFO L113 SettingsManager]: Loading preferences was successful [2021-02-23 23:26:52,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-02-23 23:26:52,374 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-02-23 23:26:52,375 INFO L138 SettingsManager]: * sizeof long=4 [2021-02-23 23:26:52,375 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-02-23 23:26:52,375 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-02-23 23:26:52,376 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-02-23 23:26:52,376 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-02-23 23:26:52,376 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-02-23 23:26:52,376 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-02-23 23:26:52,378 INFO L138 SettingsManager]: * sizeof long double=12 [2021-02-23 23:26:52,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-02-23 23:26:52,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-02-23 23:26:52,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-02-23 23:26:52,379 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-02-23 23:26:52,379 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2021-02-23 23:26:52,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-02-23 23:26:52,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-02-23 23:26:52,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-02-23 23:26:52,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-02-23 23:26:52,381 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2021-02-23 23:26:52,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-02-23 23:26:52,381 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2021-02-23 23:26:52,816 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-02-23 23:26:52,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-02-23 23:26:52,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-02-23 23:26:52,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-02-23 23:26:52,855 INFO L275 PluginConnector]: CDTParser initialized [2021-02-23 23:26:52,856 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2021-02-23 23:26:52,950 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adabc4e1b/c6e345068d3b448282734398cb5eed0f/FLAG747e399bc [2021-02-23 23:26:53,717 INFO L306 CDTParser]: Found 1 translation units. [2021-02-23 23:26:53,718 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c [2021-02-23 23:26:53,731 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adabc4e1b/c6e345068d3b448282734398cb5eed0f/FLAG747e399bc [2021-02-23 23:26:53,952 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/adabc4e1b/c6e345068d3b448282734398cb5eed0f [2021-02-23 23:26:53,959 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-02-23 23:26:53,974 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-02-23 23:26:53,976 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-02-23 23:26:53,976 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-02-23 23:26:53,980 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-02-23 23:26:53,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:26:53" (1/1) ... [2021-02-23 23:26:53,983 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6bebe8e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:53, skipping insertion in model container [2021-02-23 23:26:53,983 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.02 11:26:53" (1/1) ... [2021-02-23 23:26:53,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-02-23 23:26:54,037 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-02-23 23:26:54,442 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c[19738,19751] [2021-02-23 23:26:54,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:26:54,497 INFO L203 MainTranslator]: Completed pre-run [2021-02-23 23:26:54,600 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem02_label05.c[19738,19751] [2021-02-23 23:26:54,617 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-02-23 23:26:54,657 INFO L208 MainTranslator]: Completed translation [2021-02-23 23:26:54,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54 WrapperNode [2021-02-23 23:26:54,662 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-02-23 23:26:54,663 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-02-23 23:26:54,663 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-02-23 23:26:54,663 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-02-23 23:26:54,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,703 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,773 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,783 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (1/1) ... [2021-02-23 23:26:54,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-02-23 23:26:54,800 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-02-23 23:26:54,801 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-02-23 23:26:54,801 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-02-23 23:26:54,807 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (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 [2021-02-23 23:26:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-02-23 23:26:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-02-23 23:26:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2021-02-23 23:26:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2021-02-23 23:26:54,923 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-02-23 23:26:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2021-02-23 23:26:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-02-23 23:26:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2021-02-23 23:26:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2021-02-23 23:26:54,924 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-02-23 23:26:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-02-23 23:26:54,925 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-02-23 23:26:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-02-23 23:26:54,926 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-02-23 23:26:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-02-23 23:26:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-02-23 23:26:54,927 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-02-23 23:26:54,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-02-23 23:26:54,929 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-02-23 23:26:56,480 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-02-23 23:26:56,481 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-02-23 23:26:56,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:26:56 BoogieIcfgContainer [2021-02-23 23:26:56,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-02-23 23:26:56,493 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-02-23 23:26:56,493 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-02-23 23:26:56,499 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-02-23 23:26:56,499 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.02 11:26:53" (1/3) ... [2021-02-23 23:26:56,500 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b27b72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:26:56, skipping insertion in model container [2021-02-23 23:26:56,500 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.02 11:26:54" (2/3) ... [2021-02-23 23:26:56,501 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b27b72e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.02 11:26:56, skipping insertion in model container [2021-02-23 23:26:56,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.02 11:26:56" (3/3) ... [2021-02-23 23:26:56,506 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem02_label05.c [2021-02-23 23:26:56,514 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2021-02-23 23:26:56,520 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-02-23 23:26:56,546 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-02-23 23:26:56,582 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-02-23 23:26:56,582 INFO L377 AbstractCegarLoop]: Hoare is true [2021-02-23 23:26:56,582 INFO L378 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2021-02-23 23:26:56,582 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-02-23 23:26:56,582 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-02-23 23:26:56,582 INFO L381 AbstractCegarLoop]: Difference is false [2021-02-23 23:26:56,583 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-02-23 23:26:56,583 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-02-23 23:26:56,622 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states. [2021-02-23 23:26:56,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2021-02-23 23:26:56,665 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:26:56,667 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:26:56,667 INFO L428 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:26:56,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:26:56,676 INFO L82 PathProgramCache]: Analyzing trace with hash 1574928697, now seen corresponding path program 1 times [2021-02-23 23:26:56,685 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:26:56,686 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [871847439] [2021-02-23 23:26:56,686 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:26:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:26:57,265 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,267 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:26:57,277 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,278 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:26:57,279 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,280 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:26:57,281 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,282 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:26:57,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:26:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:26:57,392 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,393 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:26:57,394 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:26:57,395 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:26:57,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:26:57,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [871847439] [2021-02-23 23:26:57,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:26:57,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-02-23 23:26:57,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976673472] [2021-02-23 23:26:57,469 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-02-23 23:26:57,469 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:26:57,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-02-23 23:26:57,484 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-02-23 23:26:57,486 INFO L87 Difference]: Start difference. First operand 536 states. Second operand 4 states. [2021-02-23 23:27:00,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:00,215 INFO L93 Difference]: Finished difference Result 1405 states and 1859 transitions. [2021-02-23 23:27:00,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-02-23 23:27:00,217 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2021-02-23 23:27:00,218 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:00,241 INFO L225 Difference]: With dead ends: 1405 [2021-02-23 23:27:00,241 INFO L226 Difference]: Without dead ends: 796 [2021-02-23 23:27:00,255 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-02-23 23:27:00,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 796 states. [2021-02-23 23:27:00,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 796 to 673. [2021-02-23 23:27:00,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2021-02-23 23:27:00,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 821 transitions. [2021-02-23 23:27:00,502 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 821 transitions. Word has length 160 [2021-02-23 23:27:00,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:00,507 INFO L480 AbstractCegarLoop]: Abstraction has 673 states and 821 transitions. [2021-02-23 23:27:00,507 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-02-23 23:27:00,507 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 821 transitions. [2021-02-23 23:27:00,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2021-02-23 23:27:00,522 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:00,523 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:00,523 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-02-23 23:27:00,523 INFO L428 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:00,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:00,524 INFO L82 PathProgramCache]: Analyzing trace with hash -1175063544, now seen corresponding path program 1 times [2021-02-23 23:27:00,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:00,525 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544470535] [2021-02-23 23:27:00,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:00,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:00,681 WARN L141 QuantifierPusher]: treesize reduction 23, result has 25.8 percent of original size [2021-02-23 23:27:00,682 WARN L147 QuantifierPusher]: treesize reduction 23, result has 25.8 percent of original size 8 [2021-02-23 23:27:00,717 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,718 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:27:00,718 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,719 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:00,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:00,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:00,813 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,814 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:00,814 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,815 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:00,825 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,826 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:00,834 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,837 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:00,847 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,848 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:27:00,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:00,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:00,876 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-02-23 23:27:00,892 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:00,893 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:27:00,944 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:27:00,945 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544470535] [2021-02-23 23:27:00,945 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:27:00,945 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-02-23 23:27:00,945 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286069871] [2021-02-23 23:27:00,947 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:27:00,947 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:00,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:27:00,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:27:00,949 INFO L87 Difference]: Start difference. First operand 673 states and 821 transitions. Second operand 10 states. [2021-02-23 23:27:01,618 WARN L202 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 86 [2021-02-23 23:27:07,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:07,154 INFO L93 Difference]: Finished difference Result 2154 states and 2729 transitions. [2021-02-23 23:27:07,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-02-23 23:27:07,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 178 [2021-02-23 23:27:07,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:07,173 INFO L225 Difference]: With dead ends: 2154 [2021-02-23 23:27:07,173 INFO L226 Difference]: Without dead ends: 1511 [2021-02-23 23:27:07,180 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=216, Invalid=714, Unknown=0, NotChecked=0, Total=930 [2021-02-23 23:27:07,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1511 states. [2021-02-23 23:27:07,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1511 to 1216. [2021-02-23 23:27:07,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1216 states. [2021-02-23 23:27:07,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1216 states to 1216 states and 1473 transitions. [2021-02-23 23:27:07,424 INFO L78 Accepts]: Start accepts. Automaton has 1216 states and 1473 transitions. Word has length 178 [2021-02-23 23:27:07,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:07,425 INFO L480 AbstractCegarLoop]: Abstraction has 1216 states and 1473 transitions. [2021-02-23 23:27:07,425 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:27:07,425 INFO L276 IsEmpty]: Start isEmpty. Operand 1216 states and 1473 transitions. [2021-02-23 23:27:07,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2021-02-23 23:27:07,431 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:07,432 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:07,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-02-23 23:27:07,432 INFO L428 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:07,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:07,433 INFO L82 PathProgramCache]: Analyzing trace with hash 793781974, now seen corresponding path program 1 times [2021-02-23 23:27:07,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:07,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1854251270] [2021-02-23 23:27:07,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:07,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:07,603 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,605 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:07,612 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,615 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:07,616 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,617 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:07,624 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,630 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:07,634 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,635 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:07,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:07,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:07,750 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,751 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:07,752 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,752 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:07,760 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,760 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:07,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:07,785 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,786 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:07,787 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:07,787 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:07,848 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 6 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:27:07,848 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1854251270] [2021-02-23 23:27:07,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:07,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:27:07,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456139326] [2021-02-23 23:27:07,850 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:27:07,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:07,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:27:07,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:27:07,851 INFO L87 Difference]: Start difference. First operand 1216 states and 1473 transitions. Second operand 7 states. [2021-02-23 23:27:08,068 WARN L202 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 85 [2021-02-23 23:27:08,603 WARN L202 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-02-23 23:27:12,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:12,282 INFO L93 Difference]: Finished difference Result 2852 states and 3548 transitions. [2021-02-23 23:27:12,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-02-23 23:27:12,283 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 182 [2021-02-23 23:27:12,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:12,296 INFO L225 Difference]: With dead ends: 2852 [2021-02-23 23:27:12,297 INFO L226 Difference]: Without dead ends: 1666 [2021-02-23 23:27:12,302 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:27:12,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1666 states. [2021-02-23 23:27:12,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1666 to 1514. [2021-02-23 23:27:12,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1514 states. [2021-02-23 23:27:12,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 1896 transitions. [2021-02-23 23:27:12,569 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 1896 transitions. Word has length 182 [2021-02-23 23:27:12,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:12,570 INFO L480 AbstractCegarLoop]: Abstraction has 1514 states and 1896 transitions. [2021-02-23 23:27:12,570 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:27:12,570 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 1896 transitions. [2021-02-23 23:27:12,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-02-23 23:27:12,578 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:12,579 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:12,579 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-02-23 23:27:12,579 INFO L428 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:12,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:12,580 INFO L82 PathProgramCache]: Analyzing trace with hash 816841569, now seen corresponding path program 1 times [2021-02-23 23:27:12,580 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:12,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1257624140] [2021-02-23 23:27:12,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:12,645 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,646 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:12,649 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,650 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:12,651 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,651 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:27:12,658 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,658 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:12,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:12,743 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,744 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:12,745 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,746 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:12,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:12,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:12,768 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:12,770 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,770 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:12,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:27:12,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 23:27:12,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:12,798 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,799 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:12,816 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:12,817 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:12,922 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 23 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:27:12,922 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1257624140] [2021-02-23 23:27:12,923 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:12,923 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:27:12,923 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196191416] [2021-02-23 23:27:12,925 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:27:12,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:12,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:27:12,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:27:12,931 INFO L87 Difference]: Start difference. First operand 1514 states and 1896 transitions. Second operand 10 states. [2021-02-23 23:27:13,137 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 89 [2021-02-23 23:27:14,147 WARN L202 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-23 23:27:17,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:17,660 INFO L93 Difference]: Finished difference Result 4483 states and 5975 transitions. [2021-02-23 23:27:17,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-02-23 23:27:17,661 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 195 [2021-02-23 23:27:17,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:17,685 INFO L225 Difference]: With dead ends: 4483 [2021-02-23 23:27:17,686 INFO L226 Difference]: Without dead ends: 2999 [2021-02-23 23:27:17,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=195, Invalid=561, Unknown=0, NotChecked=0, Total=756 [2021-02-23 23:27:17,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2999 states. [2021-02-23 23:27:18,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2999 to 2782. [2021-02-23 23:27:18,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2782 states. [2021-02-23 23:27:18,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2782 states to 2782 states and 3421 transitions. [2021-02-23 23:27:18,372 INFO L78 Accepts]: Start accepts. Automaton has 2782 states and 3421 transitions. Word has length 195 [2021-02-23 23:27:18,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:18,374 INFO L480 AbstractCegarLoop]: Abstraction has 2782 states and 3421 transitions. [2021-02-23 23:27:18,374 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:27:18,375 INFO L276 IsEmpty]: Start isEmpty. Operand 2782 states and 3421 transitions. [2021-02-23 23:27:18,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 199 [2021-02-23 23:27:18,388 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:18,389 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:18,389 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-02-23 23:27:18,389 INFO L428 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:18,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:18,390 INFO L82 PathProgramCache]: Analyzing trace with hash 1677425468, now seen corresponding path program 1 times [2021-02-23 23:27:18,390 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:18,390 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1516253659] [2021-02-23 23:27:18,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:18,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:18,458 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,458 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:18,462 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,463 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:18,463 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,464 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:18,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:18,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:18,550 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,551 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:18,552 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,552 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:27:18,566 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:18,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:18,587 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,588 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:18,595 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:18,595 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:18,643 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-02-23 23:27:18,643 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1516253659] [2021-02-23 23:27:18,643 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-02-23 23:27:18,643 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-02-23 23:27:18,644 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1529998396] [2021-02-23 23:27:18,644 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:27:18,645 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:18,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:27:18,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:27:18,645 INFO L87 Difference]: Start difference. First operand 2782 states and 3421 transitions. Second operand 7 states. [2021-02-23 23:27:21,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:21,457 INFO L93 Difference]: Finished difference Result 7055 states and 9141 transitions. [2021-02-23 23:27:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:27:21,458 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 198 [2021-02-23 23:27:21,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:21,499 INFO L225 Difference]: With dead ends: 7055 [2021-02-23 23:27:21,499 INFO L226 Difference]: Without dead ends: 4303 [2021-02-23 23:27:21,515 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:27:21,521 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4303 states. [2021-02-23 23:27:22,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4303 to 3725. [2021-02-23 23:27:22,210 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3725 states. [2021-02-23 23:27:22,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3725 states to 3725 states and 4531 transitions. [2021-02-23 23:27:22,227 INFO L78 Accepts]: Start accepts. Automaton has 3725 states and 4531 transitions. Word has length 198 [2021-02-23 23:27:22,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:22,228 INFO L480 AbstractCegarLoop]: Abstraction has 3725 states and 4531 transitions. [2021-02-23 23:27:22,228 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:27:22,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3725 states and 4531 transitions. [2021-02-23 23:27:22,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2021-02-23 23:27:22,241 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:22,241 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:22,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-02-23 23:27:22,241 INFO L428 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:22,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:22,242 INFO L82 PathProgramCache]: Analyzing trace with hash 31804517, now seen corresponding path program 1 times [2021-02-23 23:27:22,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:22,243 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1760422855] [2021-02-23 23:27:22,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:22,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:22,296 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,297 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:22,299 WARN L141 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size [2021-02-23 23:27:22,299 WARN L147 QuantifierPusher]: treesize reduction 13, result has 48.0 percent of original size 12 [2021-02-23 23:27:22,311 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,312 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:22,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:22,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:22,385 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:22,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:22,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:22,406 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,407 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:22,409 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,410 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:22,416 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:27:22,417 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:27:22,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 23:27:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:22,435 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,436 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:22,493 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:22,494 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-02-23 23:27:22,574 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 34 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:27:22,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1760422855] [2021-02-23 23:27:22,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:22,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2021-02-23 23:27:22,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [891628824] [2021-02-23 23:27:22,576 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-02-23 23:27:22,577 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:22,579 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-02-23 23:27:22,579 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2021-02-23 23:27:22,580 INFO L87 Difference]: Start difference. First operand 3725 states and 4531 transitions. Second operand 9 states. [2021-02-23 23:27:23,385 WARN L202 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 87 [2021-02-23 23:27:26,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:26,985 INFO L93 Difference]: Finished difference Result 7483 states and 9303 transitions. [2021-02-23 23:27:26,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-02-23 23:27:26,986 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 200 [2021-02-23 23:27:26,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:27,022 INFO L225 Difference]: With dead ends: 7483 [2021-02-23 23:27:27,022 INFO L226 Difference]: Without dead ends: 4893 [2021-02-23 23:27:27,034 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=102, Invalid=318, Unknown=0, NotChecked=0, Total=420 [2021-02-23 23:27:27,040 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4893 states. [2021-02-23 23:27:27,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4893 to 4410. [2021-02-23 23:27:27,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4410 states. [2021-02-23 23:27:27,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4410 states to 4410 states and 5377 transitions. [2021-02-23 23:27:27,959 INFO L78 Accepts]: Start accepts. Automaton has 4410 states and 5377 transitions. Word has length 200 [2021-02-23 23:27:27,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:27,960 INFO L480 AbstractCegarLoop]: Abstraction has 4410 states and 5377 transitions. [2021-02-23 23:27:27,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2021-02-23 23:27:27,960 INFO L276 IsEmpty]: Start isEmpty. Operand 4410 states and 5377 transitions. [2021-02-23 23:27:27,979 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-02-23 23:27:27,979 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:27,980 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:27,980 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-02-23 23:27:27,980 INFO L428 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:27,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:27,981 INFO L82 PathProgramCache]: Analyzing trace with hash -694372522, now seen corresponding path program 1 times [2021-02-23 23:27:27,981 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:27,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [662690377] [2021-02-23 23:27:27,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:28,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:28,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:28,114 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,115 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:28,115 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,116 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:27:28,125 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,126 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:27:28,141 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,147 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:27:28,149 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,150 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:28,226 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:28,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:28,247 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,248 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:28,248 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:27:28,259 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:27:28,260 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:27:28,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:28,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:28,298 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,299 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:28,300 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,301 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:27:28,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 23:27:28,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:28,310 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,311 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:28,312 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:28,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:27:28,314 WARN L141 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size [2021-02-23 23:27:28,314 WARN L147 QuantifierPusher]: treesize reduction 2, result has 86.7 percent of original size 13 [2021-02-23 23:27:28,330 WARN L141 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size [2021-02-23 23:27:28,331 WARN L147 QuantifierPusher]: treesize reduction 2, result has 88.9 percent of original size 16 [2021-02-23 23:27:28,349 WARN L141 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size [2021-02-23 23:27:28,350 WARN L147 QuantifierPusher]: treesize reduction 2, result has 90.5 percent of original size 19 [2021-02-23 23:27:28,509 INFO L134 CoverageAnalysis]: Checked inductivity of 58 backedges. 54 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-02-23 23:27:28,510 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [662690377] [2021-02-23 23:27:28,510 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:28,510 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:27:28,510 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [288087077] [2021-02-23 23:27:28,511 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:27:28,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:28,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:27:28,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:27:28,512 INFO L87 Difference]: Start difference. First operand 4410 states and 5377 transitions. Second operand 10 states. [2021-02-23 23:27:29,673 WARN L202 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:27:29,851 WARN L202 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:27:34,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:34,535 INFO L93 Difference]: Finished difference Result 10796 states and 13284 transitions. [2021-02-23 23:27:34,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-02-23 23:27:34,535 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 221 [2021-02-23 23:27:34,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:34,579 INFO L225 Difference]: With dead ends: 10796 [2021-02-23 23:27:34,580 INFO L226 Difference]: Without dead ends: 6220 [2021-02-23 23:27:34,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=93, Invalid=147, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:27:34,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6220 states. [2021-02-23 23:27:35,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6220 to 4856. [2021-02-23 23:27:35,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4856 states. [2021-02-23 23:27:35,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4856 states to 4856 states and 5827 transitions. [2021-02-23 23:27:35,697 INFO L78 Accepts]: Start accepts. Automaton has 4856 states and 5827 transitions. Word has length 221 [2021-02-23 23:27:35,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:35,697 INFO L480 AbstractCegarLoop]: Abstraction has 4856 states and 5827 transitions. [2021-02-23 23:27:35,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:27:35,698 INFO L276 IsEmpty]: Start isEmpty. Operand 4856 states and 5827 transitions. [2021-02-23 23:27:35,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2021-02-23 23:27:35,712 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:35,712 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:35,712 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-02-23 23:27:35,713 INFO L428 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:35,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:35,713 INFO L82 PathProgramCache]: Analyzing trace with hash -978967889, now seen corresponding path program 1 times [2021-02-23 23:27:35,713 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:35,714 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [413314172] [2021-02-23 23:27:35,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:35,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:35,762 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,763 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:35,764 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:27:35,764 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:27:35,769 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,769 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:35,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:35,853 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,854 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:35,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:35,873 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,874 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:35,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:35,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 23:27:35,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:35,897 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,897 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:35,905 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:35,905 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:35,959 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 58 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-02-23 23:27:35,960 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [413314172] [2021-02-23 23:27:35,960 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:35,960 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2021-02-23 23:27:35,960 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528716886] [2021-02-23 23:27:35,961 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-02-23 23:27:35,961 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:35,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-02-23 23:27:35,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2021-02-23 23:27:35,962 INFO L87 Difference]: Start difference. First operand 4856 states and 5827 transitions. Second operand 8 states. [2021-02-23 23:27:38,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:38,297 INFO L93 Difference]: Finished difference Result 8089 states and 9823 transitions. [2021-02-23 23:27:38,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-02-23 23:27:38,307 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 223 [2021-02-23 23:27:38,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:38,347 INFO L225 Difference]: With dead ends: 8089 [2021-02-23 23:27:38,347 INFO L226 Difference]: Without dead ends: 4378 [2021-02-23 23:27:38,364 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:27:38,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4378 states. [2021-02-23 23:27:39,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4378 to 4366. [2021-02-23 23:27:39,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4366 states. [2021-02-23 23:27:39,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4366 states to 4366 states and 5116 transitions. [2021-02-23 23:27:39,674 INFO L78 Accepts]: Start accepts. Automaton has 4366 states and 5116 transitions. Word has length 223 [2021-02-23 23:27:39,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:39,675 INFO L480 AbstractCegarLoop]: Abstraction has 4366 states and 5116 transitions. [2021-02-23 23:27:39,675 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2021-02-23 23:27:39,675 INFO L276 IsEmpty]: Start isEmpty. Operand 4366 states and 5116 transitions. [2021-02-23 23:27:39,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 278 [2021-02-23 23:27:39,691 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:39,691 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:39,692 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-02-23 23:27:39,692 INFO L428 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:39,692 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:39,692 INFO L82 PathProgramCache]: Analyzing trace with hash -223084290, now seen corresponding path program 1 times [2021-02-23 23:27:39,693 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:39,694 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [786916794] [2021-02-23 23:27:39,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:39,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:39,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,773 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:39,774 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:39,777 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,777 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:39,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:39,854 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,855 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:39,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:39,874 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,875 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:39,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-02-23 23:27:39,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:39,884 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,885 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:39,885 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,886 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:27:39,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 92 [2021-02-23 23:27:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:39,910 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,910 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:39,924 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:39,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:40,000 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 135 proven. 2 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2021-02-23 23:27:40,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [786916794] [2021-02-23 23:27:40,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:40,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:27:40,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887380456] [2021-02-23 23:27:40,002 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:27:40,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:40,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:27:40,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:27:40,003 INFO L87 Difference]: Start difference. First operand 4366 states and 5116 transitions. Second operand 7 states. [2021-02-23 23:27:40,213 WARN L202 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:27:43,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:43,311 INFO L93 Difference]: Finished difference Result 8197 states and 9687 transitions. [2021-02-23 23:27:43,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-02-23 23:27:43,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 277 [2021-02-23 23:27:43,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:43,333 INFO L225 Difference]: With dead ends: 8197 [2021-02-23 23:27:43,333 INFO L226 Difference]: Without dead ends: 4178 [2021-02-23 23:27:43,347 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-02-23 23:27:43,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4178 states. [2021-02-23 23:27:44,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4178 to 3867. [2021-02-23 23:27:44,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3867 states. [2021-02-23 23:27:44,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3867 states to 3867 states and 4424 transitions. [2021-02-23 23:27:44,228 INFO L78 Accepts]: Start accepts. Automaton has 3867 states and 4424 transitions. Word has length 277 [2021-02-23 23:27:44,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:44,229 INFO L480 AbstractCegarLoop]: Abstraction has 3867 states and 4424 transitions. [2021-02-23 23:27:44,229 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:27:44,229 INFO L276 IsEmpty]: Start isEmpty. Operand 3867 states and 4424 transitions. [2021-02-23 23:27:44,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2021-02-23 23:27:44,244 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:44,244 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-23 23:27:44,245 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-02-23 23:27:44,245 INFO L428 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:44,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:44,246 INFO L82 PathProgramCache]: Analyzing trace with hash -2105774533, now seen corresponding path program 1 times [2021-02-23 23:27:44,246 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:44,246 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2061236905] [2021-02-23 23:27:44,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:44,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:44,371 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,372 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:44,378 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,379 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:27:44,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:44,384 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,385 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:27:44,399 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,400 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-02-23 23:27:44,401 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,401 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:44,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:44,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:44,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,503 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:44,503 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,504 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:44,513 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:27:44,514 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:27:44,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:44,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:44,545 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,546 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:44,546 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,547 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:27:44,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 23:27:44,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:44,580 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,580 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:44,581 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:44,581 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:27:44,582 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:27:44,583 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:27:44,595 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:27:44,596 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:27:44,610 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-23 23:27:44,611 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-23 23:27:44,628 WARN L141 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-02-23 23:27:44,628 WARN L147 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size 16 [2021-02-23 23:27:44,652 WARN L141 QuantifierPusher]: treesize reduction 10, result has 65.5 percent of original size [2021-02-23 23:27:44,654 WARN L147 QuantifierPusher]: treesize reduction 10, result has 65.5 percent of original size 19 [2021-02-23 23:27:44,838 INFO L134 CoverageAnalysis]: Checked inductivity of 148 backedges. 104 proven. 16 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2021-02-23 23:27:44,838 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2061236905] [2021-02-23 23:27:44,838 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:44,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 23:27:44,839 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995400278] [2021-02-23 23:27:44,839 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:27:44,839 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:44,840 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:27:44,840 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=112, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:27:44,840 INFO L87 Difference]: Start difference. First operand 3867 states and 4424 transitions. Second operand 13 states. [2021-02-23 23:27:45,994 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-02-23 23:27:46,416 WARN L202 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-02-23 23:27:47,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:27:47,720 INFO L93 Difference]: Finished difference Result 4119 states and 4681 transitions. [2021-02-23 23:27:47,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 23:27:47,721 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 287 [2021-02-23 23:27:47,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:27:47,734 INFO L225 Difference]: With dead ends: 4119 [2021-02-23 23:27:47,734 INFO L226 Difference]: Without dead ends: 3867 [2021-02-23 23:27:47,737 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2021-02-23 23:27:47,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3867 states. [2021-02-23 23:27:48,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3867 to 3859. [2021-02-23 23:27:48,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3859 states. [2021-02-23 23:27:48,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 4405 transitions. [2021-02-23 23:27:48,667 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 4405 transitions. Word has length 287 [2021-02-23 23:27:48,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:27:48,668 INFO L480 AbstractCegarLoop]: Abstraction has 3859 states and 4405 transitions. [2021-02-23 23:27:48,668 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:27:48,668 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 4405 transitions. [2021-02-23 23:27:48,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 310 [2021-02-23 23:27:48,681 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:27:48,682 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:27:48,682 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-02-23 23:27:48,682 INFO L428 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:27:48,683 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:27:48,683 INFO L82 PathProgramCache]: Analyzing trace with hash 932341061, now seen corresponding path program 1 times [2021-02-23 23:27:48,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:27:48,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1064983441] [2021-02-23 23:27:48,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:27:48,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:48,758 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,759 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:27:48,765 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,766 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-02-23 23:27:48,767 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,767 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 23:27:48,778 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,778 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:27:48,784 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,784 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:48,853 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:27:48,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:48,867 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,867 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:48,868 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,868 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:48,877 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,877 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:48,887 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:27:48,888 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:27:48,900 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:27:48,901 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:27:48,919 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:27:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:48,925 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,925 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:48,926 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,927 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-02-23 23:27:48,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2021-02-23 23:27:48,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:48,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:48,944 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,945 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:48,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 23:27:48,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:48,971 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,972 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:48,982 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:48,983 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:27:48,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 23:27:48,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:27:49,006 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:27:49,006 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:27:49,099 INFO L134 CoverageAnalysis]: Checked inductivity of 267 backedges. 173 proven. 55 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2021-02-23 23:27:49,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1064983441] [2021-02-23 23:27:49,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:27:49,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2021-02-23 23:27:49,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492197491] [2021-02-23 23:27:49,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-02-23 23:27:49,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:27:49,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-02-23 23:27:49,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2021-02-23 23:27:49,101 INFO L87 Difference]: Start difference. First operand 3859 states and 4405 transitions. Second operand 13 states. [2021-02-23 23:27:49,497 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-02-23 23:27:49,897 WARN L202 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 92 [2021-02-23 23:27:50,938 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-02-23 23:27:51,439 WARN L202 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:27:52,149 WARN L202 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2021-02-23 23:27:55,686 WARN L202 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-02-23 23:27:56,286 WARN L202 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2021-02-23 23:27:57,530 WARN L202 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 91 [2021-02-23 23:28:01,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:01,414 INFO L93 Difference]: Finished difference Result 7736 states and 8787 transitions. [2021-02-23 23:28:01,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2021-02-23 23:28:01,414 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 309 [2021-02-23 23:28:01,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:01,430 INFO L225 Difference]: With dead ends: 7736 [2021-02-23 23:28:01,430 INFO L226 Difference]: Without dead ends: 3349 [2021-02-23 23:28:01,442 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 66 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1444 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=768, Invalid=3788, Unknown=0, NotChecked=0, Total=4556 [2021-02-23 23:28:01,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3349 states. [2021-02-23 23:28:02,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3349 to 3126. [2021-02-23 23:28:02,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3126 states. [2021-02-23 23:28:02,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3126 states to 3126 states and 3443 transitions. [2021-02-23 23:28:02,028 INFO L78 Accepts]: Start accepts. Automaton has 3126 states and 3443 transitions. Word has length 309 [2021-02-23 23:28:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:02,028 INFO L480 AbstractCegarLoop]: Abstraction has 3126 states and 3443 transitions. [2021-02-23 23:28:02,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2021-02-23 23:28:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 3126 states and 3443 transitions. [2021-02-23 23:28:02,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2021-02-23 23:28:02,035 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:28:02,035 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2021-02-23 23:28:02,035 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-02-23 23:28:02,035 INFO L428 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:28:02,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:28:02,036 INFO L82 PathProgramCache]: Analyzing trace with hash -451120356, now seen corresponding path program 1 times [2021-02-23 23:28:02,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:28:02,036 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [717395193] [2021-02-23 23:28:02,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:28:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:02,107 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,107 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:02,108 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,108 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:02,111 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,112 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:02,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:28:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:02,184 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,185 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:02,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:28:02,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:02,210 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,211 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:02,211 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,212 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:02,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2021-02-23 23:28:02,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:02,243 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,243 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:02,250 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,251 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:28:02,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-02-23 23:28:02,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:02,268 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:02,268 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:02,353 INFO L134 CoverageAnalysis]: Checked inductivity of 199 backedges. 172 proven. 10 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-02-23 23:28:02,353 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [717395193] [2021-02-23 23:28:02,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:28:02,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2021-02-23 23:28:02,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063879468] [2021-02-23 23:28:02,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-02-23 23:28:02,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:28:02,356 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-02-23 23:28:02,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-02-23 23:28:02,356 INFO L87 Difference]: Start difference. First operand 3126 states and 3443 transitions. Second operand 7 states. [2021-02-23 23:28:05,031 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:05,031 INFO L93 Difference]: Finished difference Result 5334 states and 5845 transitions. [2021-02-23 23:28:05,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-02-23 23:28:05,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 310 [2021-02-23 23:28:05,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:05,040 INFO L225 Difference]: With dead ends: 5334 [2021-02-23 23:28:05,040 INFO L226 Difference]: Without dead ends: 2828 [2021-02-23 23:28:05,048 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2021-02-23 23:28:05,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2828 states. [2021-02-23 23:28:05,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2828 to 2661. [2021-02-23 23:28:05,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2661 states. [2021-02-23 23:28:05,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2661 states to 2661 states and 2857 transitions. [2021-02-23 23:28:05,642 INFO L78 Accepts]: Start accepts. Automaton has 2661 states and 2857 transitions. Word has length 310 [2021-02-23 23:28:05,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:05,642 INFO L480 AbstractCegarLoop]: Abstraction has 2661 states and 2857 transitions. [2021-02-23 23:28:05,642 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2021-02-23 23:28:05,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2661 states and 2857 transitions. [2021-02-23 23:28:05,649 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2021-02-23 23:28:05,649 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:28:05,650 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:28:05,650 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-02-23 23:28:05,650 INFO L428 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:28:05,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:28:05,651 INFO L82 PathProgramCache]: Analyzing trace with hash -1808177917, now seen corresponding path program 1 times [2021-02-23 23:28:05,651 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:28:05,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1563528594] [2021-02-23 23:28:05,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:28:05,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:05,773 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,774 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:28:05,779 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,780 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:28:05,781 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,782 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-02-23 23:28:05,793 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,794 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-02-23 23:28:05,808 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,810 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:05,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:28:05,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:05,896 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,896 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:05,898 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,898 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:05,906 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:28:05,907 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:28:05,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:28:05,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:05,959 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:05,962 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:05,963 WARN L141 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size [2021-02-23 23:28:05,964 WARN L147 QuantifierPusher]: treesize reduction 2, result has 84.6 percent of original size 11 [2021-02-23 23:28:05,986 WARN L141 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size [2021-02-23 23:28:05,987 WARN L147 QuantifierPusher]: treesize reduction 4, result has 77.8 percent of original size 14 [2021-02-23 23:28:05,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-02-23 23:28:05,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:06,008 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:06,008 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:06,010 WARN L141 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size [2021-02-23 23:28:06,011 WARN L147 QuantifierPusher]: treesize reduction 2, result has 87.5 percent of original size 14 [2021-02-23 23:28:06,012 WARN L141 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size [2021-02-23 23:28:06,012 WARN L147 QuantifierPusher]: treesize reduction 4, result has 81.0 percent of original size 17 [2021-02-23 23:28:06,029 WARN L141 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size [2021-02-23 23:28:06,030 WARN L147 QuantifierPusher]: treesize reduction 4, result has 83.3 percent of original size 20 [2021-02-23 23:28:06,051 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-02-23 23:28:06,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:06,084 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:06,085 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:28:06,098 WARN L141 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size [2021-02-23 23:28:06,099 WARN L147 QuantifierPusher]: treesize reduction 2, result has 93.1 percent of original size 27 [2021-02-23 23:28:06,122 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:06,123 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-02-23 23:28:06,322 INFO L134 CoverageAnalysis]: Checked inductivity of 284 backedges. 234 proven. 18 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2021-02-23 23:28:06,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1563528594] [2021-02-23 23:28:06,323 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:28:06,323 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2021-02-23 23:28:06,323 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300791227] [2021-02-23 23:28:06,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-02-23 23:28:06,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:28:06,325 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-02-23 23:28:06,325 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:28:06,325 INFO L87 Difference]: Start difference. First operand 2661 states and 2857 transitions. Second operand 14 states. [2021-02-23 23:28:06,635 WARN L202 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 88 [2021-02-23 23:28:07,019 WARN L202 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 98 [2021-02-23 23:28:07,374 WARN L202 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2021-02-23 23:28:07,848 WARN L202 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 89 [2021-02-23 23:28:08,341 WARN L202 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 97 [2021-02-23 23:28:08,702 WARN L202 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2021-02-23 23:28:09,235 WARN L202 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 92 [2021-02-23 23:28:09,662 WARN L202 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 95 [2021-02-23 23:28:11,858 WARN L202 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 96 [2021-02-23 23:28:12,531 WARN L202 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2021-02-23 23:28:13,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:13,453 INFO L93 Difference]: Finished difference Result 4964 states and 5354 transitions. [2021-02-23 23:28:13,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-02-23 23:28:13,453 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 332 [2021-02-23 23:28:13,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:13,464 INFO L225 Difference]: With dead ends: 4964 [2021-02-23 23:28:13,465 INFO L226 Difference]: Without dead ends: 2319 [2021-02-23 23:28:13,471 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 327 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=378, Invalid=1104, Unknown=0, NotChecked=0, Total=1482 [2021-02-23 23:28:13,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2319 states. [2021-02-23 23:28:13,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2319 to 2312. [2021-02-23 23:28:13,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2312 states. [2021-02-23 23:28:13,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2312 states to 2312 states and 2466 transitions. [2021-02-23 23:28:13,987 INFO L78 Accepts]: Start accepts. Automaton has 2312 states and 2466 transitions. Word has length 332 [2021-02-23 23:28:13,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:13,988 INFO L480 AbstractCegarLoop]: Abstraction has 2312 states and 2466 transitions. [2021-02-23 23:28:13,988 INFO L481 AbstractCegarLoop]: Interpolant automaton has 14 states. [2021-02-23 23:28:13,988 INFO L276 IsEmpty]: Start isEmpty. Operand 2312 states and 2466 transitions. [2021-02-23 23:28:13,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2021-02-23 23:28:13,991 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:28:13,991 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:28:13,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-02-23 23:28:13,992 INFO L428 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:28:13,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:28:13,992 INFO L82 PathProgramCache]: Analyzing trace with hash 512116557, now seen corresponding path program 1 times [2021-02-23 23:28:13,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:28:13,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1934338561] [2021-02-23 23:28:13,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:28:14,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:14,120 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,120 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:14,124 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,125 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:28:14,139 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,140 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:28:14,140 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,141 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:14,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:28:14,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:14,228 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,228 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:14,229 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,229 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:14,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:28:14,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:14,261 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,262 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:14,262 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,263 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:14,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 23:28:14,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:14,292 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,293 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:14,294 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,294 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:14,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 23:28:14,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:14,313 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,313 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:14,314 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:14,314 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:14,315 WARN L141 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size [2021-02-23 23:28:14,315 WARN L147 QuantifierPusher]: treesize reduction 4, result has 63.6 percent of original size 7 [2021-02-23 23:28:14,326 WARN L141 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size [2021-02-23 23:28:14,326 WARN L147 QuantifierPusher]: treesize reduction 6, result has 62.5 percent of original size 10 [2021-02-23 23:28:14,341 WARN L141 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size [2021-02-23 23:28:14,342 WARN L147 QuantifierPusher]: treesize reduction 8, result has 61.9 percent of original size 13 [2021-02-23 23:28:14,358 WARN L141 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size [2021-02-23 23:28:14,358 WARN L147 QuantifierPusher]: treesize reduction 10, result has 61.5 percent of original size 16 [2021-02-23 23:28:14,377 WARN L141 QuantifierPusher]: treesize reduction 12, result has 61.3 percent of original size [2021-02-23 23:28:14,378 WARN L147 QuantifierPusher]: treesize reduction 12, result has 61.3 percent of original size 19 [2021-02-23 23:28:14,721 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 164 proven. 3 refuted. 0 times theorem prover too weak. 111 trivial. 0 not checked. [2021-02-23 23:28:14,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1934338561] [2021-02-23 23:28:14,722 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:28:14,722 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:28:14,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807514294] [2021-02-23 23:28:14,723 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:28:14,723 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:28:14,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:28:14,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:28:14,724 INFO L87 Difference]: Start difference. First operand 2312 states and 2466 transitions. Second operand 10 states. [2021-02-23 23:28:16,076 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-02-23 23:28:18,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:18,189 INFO L93 Difference]: Finished difference Result 2874 states and 3042 transitions. [2021-02-23 23:28:18,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-02-23 23:28:18,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 343 [2021-02-23 23:28:18,190 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:18,198 INFO L225 Difference]: With dead ends: 2874 [2021-02-23 23:28:18,198 INFO L226 Difference]: Without dead ends: 2608 [2021-02-23 23:28:18,200 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=131, Unknown=0, NotChecked=0, Total=210 [2021-02-23 23:28:18,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2608 states. [2021-02-23 23:28:18,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2608 to 2294. [2021-02-23 23:28:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2294 states. [2021-02-23 23:28:18,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2294 states to 2294 states and 2441 transitions. [2021-02-23 23:28:18,786 INFO L78 Accepts]: Start accepts. Automaton has 2294 states and 2441 transitions. Word has length 343 [2021-02-23 23:28:18,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:18,786 INFO L480 AbstractCegarLoop]: Abstraction has 2294 states and 2441 transitions. [2021-02-23 23:28:18,786 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:28:18,786 INFO L276 IsEmpty]: Start isEmpty. Operand 2294 states and 2441 transitions. [2021-02-23 23:28:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2021-02-23 23:28:18,790 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:28:18,790 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:28:18,790 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-02-23 23:28:18,790 INFO L428 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:28:18,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:28:18,791 INFO L82 PathProgramCache]: Analyzing trace with hash 2557974, now seen corresponding path program 1 times [2021-02-23 23:28:18,791 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:28:18,791 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [14351902] [2021-02-23 23:28:18,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:28:18,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:18,940 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,940 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:18,943 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,944 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:28:18,951 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,952 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-02-23 23:28:18,953 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,953 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:28:18,967 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,968 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-02-23 23:28:18,968 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:18,969 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:19,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:28:19,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:19,056 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:19,057 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:19,057 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:19,058 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-02-23 23:28:19,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:28:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:19,095 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:19,095 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:19,096 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:28:19,097 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:28:19,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 23:28:19,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:19,135 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:19,135 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:19,136 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:28:19,144 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:28:19,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 23:28:19,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:19,168 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:19,169 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:19,170 WARN L141 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size [2021-02-23 23:28:19,170 WARN L147 QuantifierPusher]: treesize reduction 2, result has 77.8 percent of original size 7 [2021-02-23 23:28:19,171 WARN L141 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size [2021-02-23 23:28:19,172 WARN L147 QuantifierPusher]: treesize reduction 4, result has 71.4 percent of original size 10 [2021-02-23 23:28:19,185 WARN L141 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size [2021-02-23 23:28:19,185 WARN L147 QuantifierPusher]: treesize reduction 6, result has 68.4 percent of original size 13 [2021-02-23 23:28:19,204 WARN L141 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size [2021-02-23 23:28:19,205 WARN L147 QuantifierPusher]: treesize reduction 8, result has 66.7 percent of original size 16 [2021-02-23 23:28:19,225 WARN L141 QuantifierPusher]: treesize reduction 10, result has 65.5 percent of original size [2021-02-23 23:28:19,225 WARN L147 QuantifierPusher]: treesize reduction 10, result has 65.5 percent of original size 19 [2021-02-23 23:28:19,430 INFO L134 CoverageAnalysis]: Checked inductivity of 293 backedges. 183 proven. 3 refuted. 0 times theorem prover too weak. 107 trivial. 0 not checked. [2021-02-23 23:28:19,430 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [14351902] [2021-02-23 23:28:19,431 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:28:19,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:28:19,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1309059000] [2021-02-23 23:28:19,431 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:28:19,432 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:28:19,432 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:28:19,432 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:28:19,432 INFO L87 Difference]: Start difference. First operand 2294 states and 2441 transitions. Second operand 10 states. [2021-02-23 23:28:20,784 WARN L202 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2021-02-23 23:28:22,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:22,735 INFO L93 Difference]: Finished difference Result 2696 states and 2849 transitions. [2021-02-23 23:28:22,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 23:28:22,736 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 347 [2021-02-23 23:28:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:22,744 INFO L225 Difference]: With dead ends: 2696 [2021-02-23 23:28:22,745 INFO L226 Difference]: Without dead ends: 2259 [2021-02-23 23:28:22,747 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-02-23 23:28:22,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2259 states. [2021-02-23 23:28:23,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2259 to 2255. [2021-02-23 23:28:23,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2255 states. [2021-02-23 23:28:23,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2255 states to 2255 states and 2383 transitions. [2021-02-23 23:28:23,279 INFO L78 Accepts]: Start accepts. Automaton has 2255 states and 2383 transitions. Word has length 347 [2021-02-23 23:28:23,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:23,280 INFO L480 AbstractCegarLoop]: Abstraction has 2255 states and 2383 transitions. [2021-02-23 23:28:23,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:28:23,280 INFO L276 IsEmpty]: Start isEmpty. Operand 2255 states and 2383 transitions. [2021-02-23 23:28:23,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2021-02-23 23:28:23,286 INFO L414 BasicCegarLoop]: Found error trace [2021-02-23 23:28:23,286 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-02-23 23:28:23,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-02-23 23:28:23,287 INFO L428 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-02-23 23:28:23,287 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-02-23 23:28:23,287 INFO L82 PathProgramCache]: Analyzing trace with hash 46332139, now seen corresponding path program 1 times [2021-02-23 23:28:23,287 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2021-02-23 23:28:23,288 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2115975621] [2021-02-23 23:28:23,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-02-23 23:28:23,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,376 WARN L141 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size [2021-02-23 23:28:23,376 WARN L147 QuantifierPusher]: treesize reduction 17, result has 19.0 percent of original size 4 [2021-02-23 23:28:23,379 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,380 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:28:23,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,381 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,381 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,382 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-02-23 23:28:23,386 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,386 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-02-23 23:28:23,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,466 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,467 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,467 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,468 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:23,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-02-23 23:28:23,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,502 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,502 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2021-02-23 23:28:23,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,524 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,525 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-02-23 23:28:23,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,539 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,539 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-02-23 23:28:23,540 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,540 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:23,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-02-23 23:28:23,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-02-23 23:28:23,562 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,562 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:23,571 WARN L141 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-02-23 23:28:23,572 WARN L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-02-23 23:28:23,694 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 276 proven. 23 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2021-02-23 23:28:23,694 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2115975621] [2021-02-23 23:28:23,695 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2021-02-23 23:28:23,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2021-02-23 23:28:23,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028953638] [2021-02-23 23:28:23,696 INFO L460 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-02-23 23:28:23,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2021-02-23 23:28:23,696 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-02-23 23:28:23,696 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-02-23 23:28:23,697 INFO L87 Difference]: Start difference. First operand 2255 states and 2383 transitions. Second operand 10 states. [2021-02-23 23:28:25,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-02-23 23:28:25,516 INFO L93 Difference]: Finished difference Result 2889 states and 3047 transitions. [2021-02-23 23:28:25,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-02-23 23:28:25,516 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 374 [2021-02-23 23:28:25,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-02-23 23:28:25,519 INFO L225 Difference]: With dead ends: 2889 [2021-02-23 23:28:25,519 INFO L226 Difference]: Without dead ends: 0 [2021-02-23 23:28:25,526 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2021-02-23 23:28:25,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-02-23 23:28:25,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-02-23 23:28:25,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2021-02-23 23:28:25,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-02-23 23:28:25,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 374 [2021-02-23 23:28:25,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-02-23 23:28:25,527 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-02-23 23:28:25,527 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2021-02-23 23:28:25,527 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-02-23 23:28:25,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-02-23 23:28:25,528 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-02-23 23:28:25,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2021-02-23 23:28:33,872 WARN L202 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 187 [2021-02-23 23:28:34,632 WARN L202 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 252 DAG size of output: 187 [2021-02-23 23:29:33,516 WARN L202 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 203 [2021-02-23 23:29:34,657 WARN L202 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 203 [2021-02-23 23:30:03,214 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:05,863 WARN L202 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:30:07,018 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 162 DAG size of output: 80 [2021-02-23 23:30:08,079 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-02-23 23:30:09,368 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:30:10,659 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:30:13,283 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:14,426 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:30:17,099 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:19,758 WARN L202 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:22,404 WARN L202 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:23,525 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:30:24,400 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:25,280 WARN L202 SmtUtils]: Spent 868.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:26,534 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 215 DAG size of output: 78 [2021-02-23 23:30:27,983 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 216 DAG size of output: 80 [2021-02-23 23:30:28,882 WARN L202 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:29,850 WARN L202 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 75 [2021-02-23 23:30:32,462 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:30:33,527 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-02-23 23:30:34,424 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:37,024 WARN L202 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:30:37,917 WARN L202 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:38,791 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:39,682 WARN L202 SmtUtils]: Spent 884.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:40,826 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 162 DAG size of output: 81 [2021-02-23 23:30:41,733 WARN L202 SmtUtils]: Spent 904.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 65 [2021-02-23 23:30:42,627 WARN L202 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:45,265 WARN L202 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:30:46,252 WARN L202 SmtUtils]: Spent 977.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2021-02-23 23:30:47,136 WARN L202 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 65 [2021-02-23 23:30:47,991 WARN L202 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 65 [2021-02-23 23:30:49,234 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:30:51,827 WARN L202 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:30:52,914 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:30:54,138 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:30:54,991 WARN L202 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:55,923 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:30:56,772 WARN L202 SmtUtils]: Spent 843.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:30:58,034 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 210 DAG size of output: 78 [2021-02-23 23:31:00,579 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:31:01,511 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:31:02,361 WARN L202 SmtUtils]: Spent 842.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:04,888 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:31:05,896 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:31:06,758 WARN L202 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:07,740 WARN L202 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 75 [2021-02-23 23:31:10,246 WARN L202 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:31:12,757 WARN L202 SmtUtils]: Spent 2.50 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:31:13,618 WARN L202 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:14,470 WARN L202 SmtUtils]: Spent 845.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:15,325 WARN L202 SmtUtils]: Spent 848.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:16,181 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:17,042 WARN L202 SmtUtils]: Spent 858.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 65 [2021-02-23 23:31:17,901 WARN L202 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:20,441 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:31:22,980 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:31:23,836 WARN L202 SmtUtils]: Spent 849.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:24,973 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 165 DAG size of output: 79 [2021-02-23 23:31:25,831 WARN L202 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:26,777 WARN L202 SmtUtils]: Spent 939.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2021-02-23 23:31:27,789 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 159 DAG size of output: 75 [2021-02-23 23:31:28,895 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 207 DAG size of output: 80 [2021-02-23 23:31:29,757 WARN L202 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:30,651 WARN L202 SmtUtils]: Spent 885.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:31,507 WARN L202 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:32,369 WARN L202 SmtUtils]: Spent 855.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:33,351 WARN L202 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:31:34,272 WARN L202 SmtUtils]: Spent 854.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:36,948 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 273 DAG size of output: 100 [2021-02-23 23:31:37,963 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 157 DAG size of output: 80 [2021-02-23 23:31:38,918 WARN L202 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 78 [2021-02-23 23:31:39,945 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 156 DAG size of output: 76 [2021-02-23 23:31:42,548 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:31:45,072 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:31:46,318 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:31:47,568 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:31:48,663 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:31:51,267 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:31:52,518 WARN L202 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:31:55,119 WARN L202 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:31:57,709 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:31:58,583 WARN L202 SmtUtils]: Spent 867.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:31:59,863 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 207 DAG size of output: 82 [2021-02-23 23:32:00,731 WARN L202 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:01,603 WARN L202 SmtUtils]: Spent 865.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:02,550 WARN L202 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:32:05,083 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:05,956 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:06,827 WARN L202 SmtUtils]: Spent 864.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:07,699 WARN L202 SmtUtils]: Spent 862.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:08,567 WARN L202 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:09,434 WARN L202 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:10,529 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2021-02-23 23:32:13,071 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:13,964 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 64 [2021-02-23 23:32:16,498 WARN L202 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:17,371 WARN L202 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:18,483 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 204 DAG size of output: 79 [2021-02-23 23:32:21,020 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:23,562 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:24,438 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:26,976 WARN L202 SmtUtils]: Spent 2.53 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:29,589 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:32:30,469 WARN L202 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:31,526 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 156 DAG size of output: 76 [2021-02-23 23:32:32,402 WARN L202 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:35,023 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:32:36,135 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:32:37,248 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:32:38,360 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:32:40,986 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:32:41,867 WARN L202 SmtUtils]: Spent 871.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:44,425 WARN L202 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:45,426 WARN L202 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2021-02-23 23:32:46,308 WARN L202 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:48,861 WARN L202 SmtUtils]: Spent 2.54 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:32:49,743 WARN L202 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:50,632 WARN L202 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:51,512 WARN L202 SmtUtils]: Spent 872.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:52,393 WARN L202 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:53,281 WARN L202 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:54,165 WARN L202 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:55,137 WARN L202 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 76 [2021-02-23 23:32:56,027 WARN L202 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:56,910 WARN L202 SmtUtils]: Spent 876.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:32:58,593 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 213 DAG size of output: 76 [2021-02-23 23:32:59,479 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:00,753 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:33:03,396 WARN L202 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:33:06,042 WARN L202 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:33:07,163 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:33:08,439 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:33:09,489 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:33:12,063 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:33:12,959 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:13,844 WARN L202 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:16,424 WARN L202 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:33:17,546 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 208 DAG size of output: 83 [2021-02-23 23:33:18,436 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:21,025 WARN L202 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:33:21,915 WARN L202 SmtUtils]: Spent 883.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:23,328 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 214 DAG size of output: 78 [2021-02-23 23:33:24,404 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 210 DAG size of output: 77 [2021-02-23 23:33:25,296 WARN L202 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:26,257 WARN L202 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 76 [2021-02-23 23:33:27,418 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 164 DAG size of output: 78 [2021-02-23 23:33:28,810 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2021-02-23 23:33:30,498 WARN L202 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 213 DAG size of output: 76 [2021-02-23 23:33:33,126 WARN L202 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:33:34,320 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 217 DAG size of output: 78 [2021-02-23 23:33:35,374 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 166 DAG size of output: 77 [2021-02-23 23:33:36,509 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 208 DAG size of output: 83 [2021-02-23 23:33:37,550 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 159 DAG size of output: 82 [2021-02-23 23:33:40,220 WARN L202 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:33:41,510 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:33:42,801 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:33:43,943 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:33:46,616 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:33:47,524 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:48,635 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 155 DAG size of output: 81 [2021-02-23 23:33:49,532 WARN L202 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:50,429 WARN L202 SmtUtils]: Spent 890.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:53,033 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:33:55,640 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:33:56,724 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 176 DAG size of output: 78 [2021-02-23 23:33:57,626 WARN L202 SmtUtils]: Spent 894.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:33:58,927 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:34:00,035 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 207 DAG size of output: 75 [2021-02-23 23:34:02,722 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:04,012 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 217 DAG size of output: 80 [2021-02-23 23:34:05,311 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:34:07,996 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:10,680 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:11,827 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:34:14,513 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:17,209 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:19,893 WARN L202 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:21,040 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:34:22,344 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:34:23,653 WARN L202 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:34:26,346 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:27,254 WARN L202 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:28,166 WARN L202 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:30,788 WARN L202 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:34:33,402 WARN L202 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:34:34,542 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2021-02-23 23:34:35,542 WARN L202 SmtUtils]: Spent 993.00 ms on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:34:36,458 WARN L202 SmtUtils]: Spent 909.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:39,189 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 274 DAG size of output: 99 [2021-02-23 23:34:40,483 WARN L202 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 209 DAG size of output: 81 [2021-02-23 23:34:41,556 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 207 DAG size of output: 75 [2021-02-23 23:34:44,212 WARN L202 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:34:45,656 WARN L202 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 214 DAG size of output: 78 [2021-02-23 23:34:46,819 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:34:48,259 WARN L202 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2021-02-23 23:34:50,984 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:34:51,945 WARN L202 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:53,024 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 162 DAG size of output: 77 [2021-02-23 23:34:54,304 WARN L202 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2021-02-23 23:34:55,223 WARN L202 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:56,298 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 159 DAG size of output: 83 [2021-02-23 23:34:57,463 WARN L202 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2021-02-23 23:34:58,385 WARN L202 SmtUtils]: Spent 914.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:34:59,313 WARN L202 SmtUtils]: Spent 920.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:01,970 WARN L202 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:35:04,645 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:35:05,743 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2021-02-23 23:35:08,393 WARN L202 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:35:09,882 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 216 DAG size of output: 80 [2021-02-23 23:35:11,790 WARN L202 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 237 DAG size of output: 82 [2021-02-23 23:35:12,719 WARN L202 SmtUtils]: Spent 922.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:13,648 WARN L202 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:14,659 WARN L202 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 162 DAG size of output: 76 [2021-02-23 23:35:17,372 WARN L202 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:35:19,037 WARN L202 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 213 DAG size of output: 77 [2021-02-23 23:35:21,740 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:35:22,833 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2021-02-23 23:35:23,765 WARN L202 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:24,782 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2021-02-23 23:35:25,716 WARN L202 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 65 [2021-02-23 23:35:26,801 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 163 DAG size of output: 82 [2021-02-23 23:35:27,881 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 156 DAG size of output: 81 [2021-02-23 23:35:28,931 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 165 DAG size of output: 77 [2021-02-23 23:35:30,213 WARN L202 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 212 DAG size of output: 76 [2021-02-23 23:35:31,143 WARN L202 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:32,494 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 214 DAG size of output: 78 [2021-02-23 23:35:33,651 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2021-02-23 23:35:34,708 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 159 DAG size of output: 77 [2021-02-23 23:35:35,638 WARN L202 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:37,014 WARN L202 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 207 DAG size of output: 82 [2021-02-23 23:35:37,947 WARN L202 SmtUtils]: Spent 925.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:38,880 WARN L202 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:39,810 WARN L202 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:42,492 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:35:43,423 WARN L202 SmtUtils]: Spent 924.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:46,104 WARN L202 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:35:47,201 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 161 DAG size of output: 75 [2021-02-23 23:35:49,922 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:35:50,856 WARN L202 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:51,795 WARN L202 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:35:52,978 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:35:54,162 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:35:56,933 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:35:58,278 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:36:01,051 WARN L202 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:36:03,870 WARN L202 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:36:06,635 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:36:07,982 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:36:09,173 WARN L202 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:36:10,523 WARN L202 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:36:11,459 WARN L202 SmtUtils]: Spent 930.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:12,536 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 206 DAG size of output: 75 [2021-02-23 23:36:15,238 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:17,939 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:20,635 WARN L202 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:21,576 WARN L202 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:22,657 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 206 DAG size of output: 75 [2021-02-23 23:36:23,604 WARN L202 SmtUtils]: Spent 940.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:24,639 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:36:26,032 WARN L202 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 219 DAG size of output: 78 [2021-02-23 23:36:28,846 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:36:31,552 WARN L202 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:34,268 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:35,491 WARN L202 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 162 DAG size of output: 80 [2021-02-23 23:36:36,634 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 157 DAG size of output: 80 [2021-02-23 23:36:37,730 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 159 DAG size of output: 80 [2021-02-23 23:36:38,734 WARN L202 SmtUtils]: Spent 947.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:39,686 WARN L202 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:40,638 WARN L202 SmtUtils]: Spent 945.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:43,360 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:44,308 WARN L202 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:47,029 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:49,749 WARN L202 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:50,706 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:51,966 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 208 DAG size of output: 75 [2021-02-23 23:36:53,180 WARN L202 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 158 DAG size of output: 77 [2021-02-23 23:36:54,137 WARN L202 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:56,860 WARN L202 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:36:57,817 WARN L202 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:36:58,855 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2021-02-23 23:36:59,810 WARN L202 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:02,548 WARN L202 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:37:04,049 WARN L202 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 214 DAG size of output: 78 [2021-02-23 23:37:05,203 WARN L202 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 162 DAG size of output: 79 [2021-02-23 23:37:06,688 WARN L202 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2021-02-23 23:37:07,742 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 161 DAG size of output: 75 [2021-02-23 23:37:08,838 WARN L202 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 159 DAG size of output: 78 [2021-02-23 23:37:10,043 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 205 DAG size of output: 83 [2021-02-23 23:37:11,004 WARN L202 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:12,215 WARN L202 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2021-02-23 23:37:13,245 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 163 DAG size of output: 75 [2021-02-23 23:37:14,208 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:15,566 WARN L202 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 213 DAG size of output: 78 [2021-02-23 23:37:16,529 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:17,666 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-02-23 23:37:18,813 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 206 DAG size of output: 75 [2021-02-23 23:37:19,779 WARN L202 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:20,749 WARN L202 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:21,819 WARN L202 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 163 DAG size of output: 75 [2021-02-23 23:37:22,783 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:23,746 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:24,928 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 211 DAG size of output: 78 [2021-02-23 23:37:25,891 WARN L202 SmtUtils]: Spent 956.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:26,856 WARN L202 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:27,824 WARN L202 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:28,788 WARN L202 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:29,758 WARN L202 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:32,529 WARN L202 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:37:33,498 WARN L202 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:34,471 WARN L202 SmtUtils]: Spent 966.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:35,554 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2021-02-23 23:37:36,663 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 156 DAG size of output: 80 [2021-02-23 23:37:36,848 WARN L202 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 34 [2021-02-23 23:37:37,988 WARN L202 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 156 DAG size of output: 79 [2021-02-23 23:37:40,808 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 279 DAG size of output: 94 [2021-02-23 23:37:41,939 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 160 DAG size of output: 82 [2021-02-23 23:37:43,462 WARN L202 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2021-02-23 23:37:44,551 WARN L202 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 164 DAG size of output: 75 [2021-02-23 23:37:47,326 WARN L202 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:37:48,304 WARN L202 SmtUtils]: Spent 970.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:49,286 WARN L202 SmtUtils]: Spent 975.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:37:52,071 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:37:53,107 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 162 DAG size of output: 75 [2021-02-23 23:37:55,893 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:37:57,039 WARN L202 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 160 DAG size of output: 77 [2021-02-23 23:37:58,115 WARN L202 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2021-02-23 23:37:59,354 WARN L202 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:02,225 WARN L202 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:05,015 WARN L202 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:38:07,831 WARN L202 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:38:08,952 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 206 DAG size of output: 75 [2021-02-23 23:38:11,767 WARN L202 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 275 DAG size of output: 93 [2021-02-23 23:38:13,031 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:15,911 WARN L202 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:18,806 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:21,714 WARN L202 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:23,125 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:38:24,531 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:38:25,939 WARN L202 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:38:28,854 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:30,272 WARN L202 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 197 DAG size of output: 74 [2021-02-23 23:38:31,527 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:34,423 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:35,690 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:36,684 WARN L202 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:38:37,738 WARN L202 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 160 DAG size of output: 76 [2021-02-23 23:38:38,848 WARN L202 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2021-02-23 23:38:40,163 WARN L202 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 217 DAG size of output: 78 [2021-02-23 23:38:42,015 WARN L202 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 217 DAG size of output: 80 [2021-02-23 23:38:43,278 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:46,130 WARN L202 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 272 DAG size of output: 99 [2021-02-23 23:38:47,307 WARN L202 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 206 DAG size of output: 75 [2021-02-23 23:38:48,567 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:51,499 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:54,432 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:57,369 WARN L202 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 271 DAG size of output: 100 [2021-02-23 23:38:58,637 WARN L202 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 195 DAG size of output: 76 [2021-02-23 23:38:59,652 WARN L202 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 172 DAG size of output: 65 [2021-02-23 23:39:11,317 WARN L202 SmtUtils]: Spent 11.61 s on a formula simplification. DAG size of input: 373 DAG size of output: 173 [2021-02-23 23:39:22,866 WARN L202 SmtUtils]: Spent 11.53 s on a formula simplification. DAG size of input: 373 DAG size of output: 173 [2021-02-23 23:39:24,062 WARN L202 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 209 DAG size of output: 75 [2021-02-23 23:39:25,178 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 159 DAG size of output: 76 [2021-02-23 23:39:26,298 WARN L202 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 160 DAG size of output: 76 [2021-02-23 23:39:29,185 WARN L202 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:39:32,101 WARN L202 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:39:33,129 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:36,024 WARN L202 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:39:38,952 WARN L202 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 280 DAG size of output: 92 [2021-02-23 23:39:40,078 WARN L202 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 160 DAG size of output: 78 [2021-02-23 23:39:41,109 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:42,142 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:43,180 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:44,229 WARN L202 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:45,266 WARN L202 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:46,290 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:47,317 WARN L202 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 141 DAG size of output: 64 [2021-02-23 23:39:48,572 WARN L202 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 158 DAG size of output: 78