/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/Problem01_label41.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:29:47,787 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:29:47,790 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:29:47,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:29:47,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:29:47,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:29:47,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:29:47,848 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:29:47,849 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:29:47,851 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:29:47,873 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:29:47,877 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:29:47,882 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:29:47,884 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:29:47,886 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:29:47,888 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:29:47,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:29:47,914 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:29:47,915 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:29:47,916 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:29:47,918 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:29:47,940 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:29:47,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:29:47,945 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:29:47,945 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:29:47,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:29:47,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:29:47,946 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:29:47,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:29:47,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:29:47,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:29:47,948 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:29:47,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:29:47,949 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:29:47,949 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:29:47,949 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:29:47,950 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:29:47,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:29:47,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:29:47,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:29:47,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:29:47,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:29:47,951 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:29:47,951 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:29:48,377 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:29:48,409 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:29:48,412 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:29:48,413 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:29:48,414 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:29:48,415 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-11-07 05:29:48,488 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20677ab36/147bf9bfcae442c090a247dab75bc944/FLAGca157bf00 [2020-11-07 05:29:49,185 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:29:49,197 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label41.c [2020-11-07 05:29:49,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20677ab36/147bf9bfcae442c090a247dab75bc944/FLAGca157bf00 [2020-11-07 05:29:49,441 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20677ab36/147bf9bfcae442c090a247dab75bc944 [2020-11-07 05:29:49,444 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:29:49,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:29:49,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:29:49,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:29:49,468 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:29:49,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:29:49" (1/1) ... [2020-11-07 05:29:49,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66c8b233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:49, skipping insertion in model container [2020-11-07 05:29:49,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:29:49" (1/1) ... [2020-11-07 05:29:49,488 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:29:49,542 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:29:49,953 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:29:49,966 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:29:50,099 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:29:50,118 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:29:50,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50 WrapperNode [2020-11-07 05:29:50,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:29:50,120 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:29:50,120 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:29:50,120 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:29:50,134 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,134 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,156 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,156 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,201 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,217 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,224 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... [2020-11-07 05:29:50,234 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:29:50,235 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:29:50,235 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:29:50,235 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:29:50,236 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:29:50,312 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:29:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:29:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:29:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 05:29:50,313 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:29:50,313 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 05:29:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:29:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:29:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:29:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:29:50,314 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:29:50,315 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:29:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:29:50,316 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:29:51,764 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:29:51,765 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:29:51,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:29:51 BoogieIcfgContainer [2020-11-07 05:29:51,767 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:29:51,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:29:51,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:29:51,773 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:29:51,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:29:49" (1/3) ... [2020-11-07 05:29:51,774 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acfd565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:29:51, skipping insertion in model container [2020-11-07 05:29:51,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:29:50" (2/3) ... [2020-11-07 05:29:51,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@acfd565 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:29:51, skipping insertion in model container [2020-11-07 05:29:51,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:29:51" (3/3) ... [2020-11-07 05:29:51,776 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label41.c [2020-11-07 05:29:51,792 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:29:51,796 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:29:51,808 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:29:51,833 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:29:51,834 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:29:51,834 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:29:51,834 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:29:51,834 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:29:51,834 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:29:51,834 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:29:51,835 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:29:51,861 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-11-07 05:29:51,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2020-11-07 05:29:51,884 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:29:51,885 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] [2020-11-07 05:29:51,886 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:29:51,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:29:51,892 INFO L82 PathProgramCache]: Analyzing trace with hash -1216423464, now seen corresponding path program 1 times [2020-11-07 05:29:51,900 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:29:51,901 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412045155] [2020-11-07 05:29:51,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:29:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:52,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:29:52,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:52,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:29:52,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412045155] [2020-11-07 05:29:52,626 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:29:52,626 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:29:52,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831896459] [2020-11-07 05:29:52,634 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:29:52,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:29:52,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:29:52,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:29:52,659 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-11-07 05:29:55,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:29:55,848 INFO L93 Difference]: Finished difference Result 1248 states and 1647 transitions. [2020-11-07 05:29:55,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:29:55,850 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 122 [2020-11-07 05:29:55,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:29:55,878 INFO L225 Difference]: With dead ends: 1248 [2020-11-07 05:29:55,878 INFO L226 Difference]: Without dead ends: 670 [2020-11-07 05:29:55,894 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:29:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 670 states. [2020-11-07 05:29:56,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 670 to 614. [2020-11-07 05:29:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 614 states. [2020-11-07 05:29:56,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 614 states to 614 states and 724 transitions. [2020-11-07 05:29:56,126 INFO L78 Accepts]: Start accepts. Automaton has 614 states and 724 transitions. Word has length 122 [2020-11-07 05:29:56,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:29:56,129 INFO L481 AbstractCegarLoop]: Abstraction has 614 states and 724 transitions. [2020-11-07 05:29:56,129 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:29:56,129 INFO L276 IsEmpty]: Start isEmpty. Operand 614 states and 724 transitions. [2020-11-07 05:29:56,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-11-07 05:29:56,141 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:29:56,142 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] [2020-11-07 05:29:56,143 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:29:56,143 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:29:56,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:29:56,144 INFO L82 PathProgramCache]: Analyzing trace with hash -2003634840, now seen corresponding path program 1 times [2020-11-07 05:29:56,144 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:29:56,144 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [276252892] [2020-11-07 05:29:56,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:29:56,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:56,467 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-07 05:29:56,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:29:56,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:56,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:29:56,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:56,557 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:29:56,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [276252892] [2020-11-07 05:29:56,558 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:29:56,558 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 05:29:56,558 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223200993] [2020-11-07 05:29:56,560 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:29:56,560 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:29:56,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:29:56,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:29:56,562 INFO L87 Difference]: Start difference. First operand 614 states and 724 transitions. Second operand 5 states. [2020-11-07 05:29:56,770 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:29:59,167 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:29:59,167 INFO L93 Difference]: Finished difference Result 1534 states and 1885 transitions. [2020-11-07 05:29:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:29:59,169 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 139 [2020-11-07 05:29:59,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:29:59,179 INFO L225 Difference]: With dead ends: 1534 [2020-11-07 05:29:59,179 INFO L226 Difference]: Without dead ends: 952 [2020-11-07 05:29:59,183 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:29:59,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 952 states. [2020-11-07 05:29:59,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 952 to 900. [2020-11-07 05:29:59,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 900 states. [2020-11-07 05:29:59,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 900 states to 900 states and 1081 transitions. [2020-11-07 05:29:59,361 INFO L78 Accepts]: Start accepts. Automaton has 900 states and 1081 transitions. Word has length 139 [2020-11-07 05:29:59,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:29:59,361 INFO L481 AbstractCegarLoop]: Abstraction has 900 states and 1081 transitions. [2020-11-07 05:29:59,361 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:29:59,362 INFO L276 IsEmpty]: Start isEmpty. Operand 900 states and 1081 transitions. [2020-11-07 05:29:59,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2020-11-07 05:29:59,375 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:29:59,375 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-11-07 05:29:59,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:29:59,376 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:29:59,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:29:59,377 INFO L82 PathProgramCache]: Analyzing trace with hash -1569593519, now seen corresponding path program 1 times [2020-11-07 05:29:59,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:29:59,378 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [572254511] [2020-11-07 05:29:59,378 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:29:59,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:59,624 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-11-07 05:29:59,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:29:59,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:59,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:29:59,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:29:59,779 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:29:59,779 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [572254511] [2020-11-07 05:29:59,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:29:59,780 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 05:29:59,780 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775631889] [2020-11-07 05:29:59,781 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:29:59,781 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:29:59,781 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:29:59,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:29:59,782 INFO L87 Difference]: Start difference. First operand 900 states and 1081 transitions. Second operand 8 states. [2020-11-07 05:30:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:03,830 INFO L93 Difference]: Finished difference Result 2854 states and 3677 transitions. [2020-11-07 05:30:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 05:30:03,831 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 144 [2020-11-07 05:30:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:03,857 INFO L225 Difference]: With dead ends: 2854 [2020-11-07 05:30:03,857 INFO L226 Difference]: Without dead ends: 1986 [2020-11-07 05:30:03,865 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:30:03,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1986 states. [2020-11-07 05:30:04,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1986 to 1488. [2020-11-07 05:30:04,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1488 states. [2020-11-07 05:30:04,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1488 states to 1488 states and 1817 transitions. [2020-11-07 05:30:04,268 INFO L78 Accepts]: Start accepts. Automaton has 1488 states and 1817 transitions. Word has length 144 [2020-11-07 05:30:04,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:04,270 INFO L481 AbstractCegarLoop]: Abstraction has 1488 states and 1817 transitions. [2020-11-07 05:30:04,270 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:30:04,270 INFO L276 IsEmpty]: Start isEmpty. Operand 1488 states and 1817 transitions. [2020-11-07 05:30:04,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-11-07 05:30:04,278 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:04,278 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:30:04,279 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:30:04,279 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:04,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:04,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1029785603, now seen corresponding path program 1 times [2020-11-07 05:30:04,280 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:04,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1323753281] [2020-11-07 05:30:04,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:04,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:04,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:04,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:04,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:04,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-07 05:30:04,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:04,591 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 51 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 05:30:04,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1323753281] [2020-11-07 05:30:04,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:04,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:30:04,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [807456012] [2020-11-07 05:30:04,593 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:30:04,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:04,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:30:04,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:30:04,618 INFO L87 Difference]: Start difference. First operand 1488 states and 1817 transitions. Second operand 7 states. [2020-11-07 05:30:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:07,784 INFO L93 Difference]: Finished difference Result 3354 states and 4236 transitions. [2020-11-07 05:30:07,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:30:07,785 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 184 [2020-11-07 05:30:07,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:07,805 INFO L225 Difference]: With dead ends: 3354 [2020-11-07 05:30:07,805 INFO L226 Difference]: Without dead ends: 1898 [2020-11-07 05:30:07,813 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:30:07,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1898 states. [2020-11-07 05:30:08,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1898 to 1668. [2020-11-07 05:30:08,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1668 states. [2020-11-07 05:30:08,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1668 states to 1668 states and 2046 transitions. [2020-11-07 05:30:08,207 INFO L78 Accepts]: Start accepts. Automaton has 1668 states and 2046 transitions. Word has length 184 [2020-11-07 05:30:08,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:08,208 INFO L481 AbstractCegarLoop]: Abstraction has 1668 states and 2046 transitions. [2020-11-07 05:30:08,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:30:08,208 INFO L276 IsEmpty]: Start isEmpty. Operand 1668 states and 2046 transitions. [2020-11-07 05:30:08,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2020-11-07 05:30:08,217 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:08,218 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, 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] [2020-11-07 05:30:08,218 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:30:08,218 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:08,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:08,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1925039906, now seen corresponding path program 1 times [2020-11-07 05:30:08,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:08,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1711492782] [2020-11-07 05:30:08,220 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:08,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:08,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:08,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:08,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:08,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:08,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:30:08,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:08,589 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-11-07 05:30:08,591 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1711492782] [2020-11-07 05:30:08,591 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:08,591 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:30:08,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344278326] [2020-11-07 05:30:08,592 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:30:08,592 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:08,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:30:08,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:30:08,593 INFO L87 Difference]: Start difference. First operand 1668 states and 2046 transitions. Second operand 7 states. [2020-11-07 05:30:12,027 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:12,028 INFO L93 Difference]: Finished difference Result 4240 states and 5368 transitions. [2020-11-07 05:30:12,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:30:12,031 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 206 [2020-11-07 05:30:12,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:12,052 INFO L225 Difference]: With dead ends: 4240 [2020-11-07 05:30:12,052 INFO L226 Difference]: Without dead ends: 2604 [2020-11-07 05:30:12,061 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:30:12,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2604 states. [2020-11-07 05:30:12,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2604 to 2335. [2020-11-07 05:30:12,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2335 states. [2020-11-07 05:30:12,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2335 states to 2335 states and 2864 transitions. [2020-11-07 05:30:12,685 INFO L78 Accepts]: Start accepts. Automaton has 2335 states and 2864 transitions. Word has length 206 [2020-11-07 05:30:12,685 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:12,685 INFO L481 AbstractCegarLoop]: Abstraction has 2335 states and 2864 transitions. [2020-11-07 05:30:12,685 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:30:12,686 INFO L276 IsEmpty]: Start isEmpty. Operand 2335 states and 2864 transitions. [2020-11-07 05:30:12,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-11-07 05:30:12,699 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:12,700 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 05:30:12,700 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:30:12,700 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:12,700 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:12,701 INFO L82 PathProgramCache]: Analyzing trace with hash 1500415135, now seen corresponding path program 1 times [2020-11-07 05:30:12,701 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:12,701 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [881067432] [2020-11-07 05:30:12,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:12,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:12,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:12,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:12,936 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:12,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:12,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-11-07 05:30:12,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:12,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-11-07 05:30:12,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:13,075 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 102 proven. 14 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2020-11-07 05:30:13,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [881067432] [2020-11-07 05:30:13,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:13,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:30:13,077 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668906651] [2020-11-07 05:30:13,077 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:30:13,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:13,078 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:30:13,078 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:30:13,079 INFO L87 Difference]: Start difference. First operand 2335 states and 2864 transitions. Second operand 8 states. [2020-11-07 05:30:13,521 WARN L194 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:30:13,916 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-07 05:30:15,082 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:30:18,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:18,253 INFO L93 Difference]: Finished difference Result 5919 states and 7356 transitions. [2020-11-07 05:30:18,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:30:18,254 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 229 [2020-11-07 05:30:18,254 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:18,276 INFO L225 Difference]: With dead ends: 5919 [2020-11-07 05:30:18,276 INFO L226 Difference]: Without dead ends: 3185 [2020-11-07 05:30:18,288 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:30:18,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3185 states. [2020-11-07 05:30:18,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3185 to 3177. [2020-11-07 05:30:18,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3177 states. [2020-11-07 05:30:18,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3177 states to 3177 states and 3723 transitions. [2020-11-07 05:30:18,923 INFO L78 Accepts]: Start accepts. Automaton has 3177 states and 3723 transitions. Word has length 229 [2020-11-07 05:30:18,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:18,924 INFO L481 AbstractCegarLoop]: Abstraction has 3177 states and 3723 transitions. [2020-11-07 05:30:18,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:30:18,924 INFO L276 IsEmpty]: Start isEmpty. Operand 3177 states and 3723 transitions. [2020-11-07 05:30:18,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2020-11-07 05:30:18,937 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:18,938 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:30:18,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:30:18,938 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:18,939 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:18,939 INFO L82 PathProgramCache]: Analyzing trace with hash -371762547, now seen corresponding path program 1 times [2020-11-07 05:30:18,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:18,939 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147506024] [2020-11-07 05:30:18,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:18,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:19,098 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:19,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:19,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 81 [2020-11-07 05:30:19,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:19,384 INFO L134 CoverageAnalysis]: Checked inductivity of 132 backedges. 93 proven. 28 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:30:19,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147506024] [2020-11-07 05:30:19,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:19,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:30:19,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1617903386] [2020-11-07 05:30:19,386 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:30:19,386 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:19,387 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:30:19,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:30:19,388 INFO L87 Difference]: Start difference. First operand 3177 states and 3723 transitions. Second operand 8 states. [2020-11-07 05:30:19,594 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-07 05:30:20,186 WARN L194 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:30:20,805 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:30:23,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:23,559 INFO L93 Difference]: Finished difference Result 6386 states and 7510 transitions. [2020-11-07 05:30:23,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:30:23,560 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 232 [2020-11-07 05:30:23,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:23,587 INFO L225 Difference]: With dead ends: 6386 [2020-11-07 05:30:23,587 INFO L226 Difference]: Without dead ends: 3382 [2020-11-07 05:30:23,600 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=77, Invalid=195, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:30:23,605 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3382 states. [2020-11-07 05:30:24,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3382 to 2339. [2020-11-07 05:30:24,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2339 states. [2020-11-07 05:30:24,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2339 states to 2339 states and 2693 transitions. [2020-11-07 05:30:24,227 INFO L78 Accepts]: Start accepts. Automaton has 2339 states and 2693 transitions. Word has length 232 [2020-11-07 05:30:24,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:24,228 INFO L481 AbstractCegarLoop]: Abstraction has 2339 states and 2693 transitions. [2020-11-07 05:30:24,228 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:30:24,228 INFO L276 IsEmpty]: Start isEmpty. Operand 2339 states and 2693 transitions. [2020-11-07 05:30:24,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2020-11-07 05:30:24,238 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:24,239 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:30:24,239 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:30:24,239 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:24,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:24,240 INFO L82 PathProgramCache]: Analyzing trace with hash 669334045, now seen corresponding path program 1 times [2020-11-07 05:30:24,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:24,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [681376756] [2020-11-07 05:30:24,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:24,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:24,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:24,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:24,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:30:24,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:24,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 05:30:24,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:24,606 INFO L134 CoverageAnalysis]: Checked inductivity of 169 backedges. 123 proven. 32 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2020-11-07 05:30:24,606 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [681376756] [2020-11-07 05:30:24,606 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:24,607 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:30:24,607 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043921880] [2020-11-07 05:30:24,607 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:30:24,608 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:24,608 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:30:24,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:30:24,609 INFO L87 Difference]: Start difference. First operand 2339 states and 2693 transitions. Second operand 8 states. [2020-11-07 05:30:24,794 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:30:25,383 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:30:26,100 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:30:28,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:28,610 INFO L93 Difference]: Finished difference Result 4725 states and 5461 transitions. [2020-11-07 05:30:28,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 05:30:28,611 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 249 [2020-11-07 05:30:28,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:28,624 INFO L225 Difference]: With dead ends: 4725 [2020-11-07 05:30:28,625 INFO L226 Difference]: Without dead ends: 2559 [2020-11-07 05:30:28,632 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:30:28,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2559 states. [2020-11-07 05:30:29,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2559 to 2489. [2020-11-07 05:30:29,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2489 states. [2020-11-07 05:30:29,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 2850 transitions. [2020-11-07 05:30:29,261 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 2850 transitions. Word has length 249 [2020-11-07 05:30:29,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:29,261 INFO L481 AbstractCegarLoop]: Abstraction has 2489 states and 2850 transitions. [2020-11-07 05:30:29,262 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:30:29,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 2850 transitions. [2020-11-07 05:30:29,273 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-11-07 05:30:29,273 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:29,274 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:30:29,274 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:30:29,274 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:29,275 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:29,275 INFO L82 PathProgramCache]: Analyzing trace with hash 517650633, now seen corresponding path program 1 times [2020-11-07 05:30:29,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:29,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2027962275] [2020-11-07 05:30:29,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:29,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:29,459 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:29,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:29,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:29,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:30:29,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:29,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-11-07 05:30:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:29,704 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 129 proven. 21 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2020-11-07 05:30:29,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2027962275] [2020-11-07 05:30:29,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:29,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 05:30:29,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365511615] [2020-11-07 05:30:29,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 05:30:29,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:29,707 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 05:30:29,707 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:30:29,707 INFO L87 Difference]: Start difference. First operand 2489 states and 2850 transitions. Second operand 11 states. [2020-11-07 05:30:30,152 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-07 05:30:30,874 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:30:31,175 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:30:32,870 WARN L194 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-11-07 05:30:33,179 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:30:34,209 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:30:35,469 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:30:36,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:36,556 INFO L93 Difference]: Finished difference Result 6737 states and 7721 transitions. [2020-11-07 05:30:36,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 05:30:36,564 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 258 [2020-11-07 05:30:36,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:36,585 INFO L225 Difference]: With dead ends: 6737 [2020-11-07 05:30:36,585 INFO L226 Difference]: Without dead ends: 4421 [2020-11-07 05:30:36,594 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 402 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:30:36,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4421 states. [2020-11-07 05:30:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4421 to 4336. [2020-11-07 05:30:37,659 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4336 states. [2020-11-07 05:30:37,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4336 states to 4336 states and 4887 transitions. [2020-11-07 05:30:37,667 INFO L78 Accepts]: Start accepts. Automaton has 4336 states and 4887 transitions. Word has length 258 [2020-11-07 05:30:37,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:37,668 INFO L481 AbstractCegarLoop]: Abstraction has 4336 states and 4887 transitions. [2020-11-07 05:30:37,668 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 05:30:37,668 INFO L276 IsEmpty]: Start isEmpty. Operand 4336 states and 4887 transitions. [2020-11-07 05:30:37,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-07 05:30:37,681 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:37,681 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 05:30:37,682 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:30:37,682 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:37,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:37,682 INFO L82 PathProgramCache]: Analyzing trace with hash 99303578, now seen corresponding path program 1 times [2020-11-07 05:30:37,683 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:37,683 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2101993687] [2020-11-07 05:30:37,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:37,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:38,000 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:38,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:38,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:38,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:38,140 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:30:38,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:38,212 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-11-07 05:30:38,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 124 proven. 33 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2020-11-07 05:30:38,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2101993687] [2020-11-07 05:30:38,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:38,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 05:30:38,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576840932] [2020-11-07 05:30:38,562 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 05:30:38,563 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:38,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 05:30:38,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2020-11-07 05:30:38,563 INFO L87 Difference]: Start difference. First operand 4336 states and 4887 transitions. Second operand 15 states. [2020-11-07 05:30:38,889 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 94 [2020-11-07 05:30:39,339 WARN L194 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 95 [2020-11-07 05:30:40,343 WARN L194 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 96 [2020-11-07 05:30:41,264 WARN L194 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 97 [2020-11-07 05:30:41,836 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:30:42,490 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-11-07 05:30:42,922 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 100 [2020-11-07 05:30:43,893 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 05:30:44,756 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 98 [2020-11-07 05:30:45,085 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 96 [2020-11-07 05:30:46,023 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 05:30:46,426 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 97 [2020-11-07 05:30:47,824 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2020-11-07 05:30:49,400 WARN L194 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-11-07 05:30:50,817 WARN L194 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 102 [2020-11-07 05:30:51,286 WARN L194 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 101 [2020-11-07 05:30:53,976 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:30:53,977 INFO L93 Difference]: Finished difference Result 11030 states and 12673 transitions. [2020-11-07 05:30:53,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2020-11-07 05:30:53,978 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 264 [2020-11-07 05:30:53,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:30:54,014 INFO L225 Difference]: With dead ends: 11030 [2020-11-07 05:30:54,014 INFO L226 Difference]: Without dead ends: 6392 [2020-11-07 05:30:54,030 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 948 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=830, Invalid=2476, Unknown=0, NotChecked=0, Total=3306 [2020-11-07 05:30:54,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6392 states. [2020-11-07 05:30:55,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6392 to 6319. [2020-11-07 05:30:55,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6319 states. [2020-11-07 05:30:55,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6319 states to 6319 states and 6958 transitions. [2020-11-07 05:30:55,716 INFO L78 Accepts]: Start accepts. Automaton has 6319 states and 6958 transitions. Word has length 264 [2020-11-07 05:30:55,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:30:55,717 INFO L481 AbstractCegarLoop]: Abstraction has 6319 states and 6958 transitions. [2020-11-07 05:30:55,717 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 05:30:55,717 INFO L276 IsEmpty]: Start isEmpty. Operand 6319 states and 6958 transitions. [2020-11-07 05:30:55,731 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 302 [2020-11-07 05:30:55,731 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:30:55,731 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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] [2020-11-07 05:30:55,732 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:30:55,732 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:30:55,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:30:55,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1136442186, now seen corresponding path program 1 times [2020-11-07 05:30:55,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:30:55,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [530765054] [2020-11-07 05:30:55,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:30:55,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:55,917 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:30:55,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:55,950 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:30:55,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:55,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:30:55,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:56,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 05:30:56,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 05:30:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:30:56,148 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 198 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-07 05:30:56,149 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [530765054] [2020-11-07 05:30:56,149 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:30:56,149 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:30:56,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928816852] [2020-11-07 05:30:56,150 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:30:56,150 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:30:56,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:30:56,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:30:56,151 INFO L87 Difference]: Start difference. First operand 6319 states and 6958 transitions. Second operand 10 states. [2020-11-07 05:30:56,525 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:30:57,241 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:30:57,789 WARN L194 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-11-07 05:30:58,161 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:30:58,338 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:30:59,777 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:31:01,233 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:31:01,437 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:31:01,866 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:31:04,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:31:04,781 INFO L93 Difference]: Finished difference Result 14498 states and 16061 transitions. [2020-11-07 05:31:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 05:31:04,781 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 301 [2020-11-07 05:31:04,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:31:04,819 INFO L225 Difference]: With dead ends: 14498 [2020-11-07 05:31:04,819 INFO L226 Difference]: Without dead ends: 8012 [2020-11-07 05:31:04,838 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 05:31:04,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8012 states. [2020-11-07 05:31:06,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8012 to 7926. [2020-11-07 05:31:06,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7926 states. [2020-11-07 05:31:06,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7926 states to 7926 states and 8566 transitions. [2020-11-07 05:31:06,917 INFO L78 Accepts]: Start accepts. Automaton has 7926 states and 8566 transitions. Word has length 301 [2020-11-07 05:31:06,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:31:06,918 INFO L481 AbstractCegarLoop]: Abstraction has 7926 states and 8566 transitions. [2020-11-07 05:31:06,918 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:31:06,918 INFO L276 IsEmpty]: Start isEmpty. Operand 7926 states and 8566 transitions. [2020-11-07 05:31:06,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-11-07 05:31:06,933 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:31:06,934 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 05:31:06,934 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 05:31:06,934 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:31:06,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:31:06,935 INFO L82 PathProgramCache]: Analyzing trace with hash 600146318, now seen corresponding path program 1 times [2020-11-07 05:31:06,935 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:31:06,935 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1359299235] [2020-11-07 05:31:06,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:31:06,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:31:07,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:31:07,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:31:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-11-07 05:31:07,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-11-07 05:31:07,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:07,313 INFO L134 CoverageAnalysis]: Checked inductivity of 372 backedges. 224 proven. 60 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2020-11-07 05:31:07,314 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1359299235] [2020-11-07 05:31:07,314 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:31:07,314 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:31:07,314 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570434199] [2020-11-07 05:31:07,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:31:07,317 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:31:07,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:31:07,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:31:07,318 INFO L87 Difference]: Start difference. First operand 7926 states and 8566 transitions. Second operand 7 states. [2020-11-07 05:31:08,710 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:31:11,847 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:31:11,848 INFO L93 Difference]: Finished difference Result 15804 states and 17071 transitions. [2020-11-07 05:31:11,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:31:11,848 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2020-11-07 05:31:11,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:31:11,888 INFO L225 Difference]: With dead ends: 15804 [2020-11-07 05:31:11,888 INFO L226 Difference]: Without dead ends: 8056 [2020-11-07 05:31:11,908 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:31:11,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8056 states. [2020-11-07 05:31:14,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8056 to 7985. [2020-11-07 05:31:14,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7985 states. [2020-11-07 05:31:14,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7985 states to 7985 states and 8521 transitions. [2020-11-07 05:31:14,012 INFO L78 Accepts]: Start accepts. Automaton has 7985 states and 8521 transitions. Word has length 319 [2020-11-07 05:31:14,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:31:14,012 INFO L481 AbstractCegarLoop]: Abstraction has 7985 states and 8521 transitions. [2020-11-07 05:31:14,012 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:31:14,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7985 states and 8521 transitions. [2020-11-07 05:31:14,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-11-07 05:31:14,025 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:31:14,026 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2020-11-07 05:31:14,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 05:31:14,026 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:31:14,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:31:14,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1669067512, now seen corresponding path program 1 times [2020-11-07 05:31:14,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:31:14,027 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1133910687] [2020-11-07 05:31:14,027 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:31:14,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:31:14,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:31:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,267 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:31:14,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:31:14,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-07 05:31:14,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:14,462 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-11-07 05:31:14,463 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1133910687] [2020-11-07 05:31:14,463 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:31:14,463 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:31:14,463 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057376165] [2020-11-07 05:31:14,464 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:31:14,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:31:14,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:31:14,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:31:14,467 INFO L87 Difference]: Start difference. First operand 7985 states and 8521 transitions. Second operand 8 states. [2020-11-07 05:31:14,784 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-07 05:31:16,046 WARN L194 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:31:17,299 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:31:19,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:31:19,744 INFO L93 Difference]: Finished difference Result 15999 states and 17075 transitions. [2020-11-07 05:31:19,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:31:19,745 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 341 [2020-11-07 05:31:19,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:31:19,779 INFO L225 Difference]: With dead ends: 15999 [2020-11-07 05:31:19,779 INFO L226 Difference]: Without dead ends: 8192 [2020-11-07 05:31:19,796 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:31:19,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8192 states. [2020-11-07 05:31:21,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8192 to 8136. [2020-11-07 05:31:21,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8136 states. [2020-11-07 05:31:21,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8136 states to 8136 states and 8653 transitions. [2020-11-07 05:31:21,795 INFO L78 Accepts]: Start accepts. Automaton has 8136 states and 8653 transitions. Word has length 341 [2020-11-07 05:31:21,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:31:21,796 INFO L481 AbstractCegarLoop]: Abstraction has 8136 states and 8653 transitions. [2020-11-07 05:31:21,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:31:21,796 INFO L276 IsEmpty]: Start isEmpty. Operand 8136 states and 8653 transitions. [2020-11-07 05:31:21,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 363 [2020-11-07 05:31:21,807 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:31:21,808 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:31:21,808 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 05:31:21,808 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:31:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:31:21,809 INFO L82 PathProgramCache]: Analyzing trace with hash 1781110573, now seen corresponding path program 1 times [2020-11-07 05:31:21,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:31:21,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1315122194] [2020-11-07 05:31:21,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:31:21,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:31:22,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:31:22,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,100 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:31:22,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:31:22,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:31:22,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:31:22,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:31:22,398 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 228 proven. 42 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2020-11-07 05:31:22,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1315122194] [2020-11-07 05:31:22,399 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:31:22,399 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:31:22,399 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841820781] [2020-11-07 05:31:22,400 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:31:22,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:31:22,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:31:22,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:31:22,401 INFO L87 Difference]: Start difference. First operand 8136 states and 8653 transitions. Second operand 7 states. [2020-11-07 05:31:22,594 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:31:24,061 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:31:26,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:31:26,804 INFO L93 Difference]: Finished difference Result 14997 states and 15939 transitions. [2020-11-07 05:31:26,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 05:31:26,805 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 362 [2020-11-07 05:31:26,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:31:26,814 INFO L225 Difference]: With dead ends: 14997 [2020-11-07 05:31:26,815 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:31:26,842 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:31:26,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:31:26,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:31:26,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:31:26,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:31:26,843 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 362 [2020-11-07 05:31:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:31:26,843 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:31:26,844 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:31:26,844 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:31:26,844 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:31:26,844 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 05:31:26,846 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:31:28,126 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:31:29,137 WARN L194 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 115 [2020-11-07 05:31:41,569 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 123 [2020-11-07 05:31:41,722 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 122 [2020-11-07 05:31:41,836 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:31:42,002 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 123 [2020-11-07 05:31:42,112 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:31:42,330 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 122 [2020-11-07 05:31:59,153 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:32:34,913 WARN L194 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:32:36,720 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:32:36,905 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:32:55,659 WARN L194 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:33:42,793 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2020-11-07 05:33:44,089 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 132 [2020-11-07 05:34:20,441 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:35:09,571 WARN L194 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:35:09,753 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:35:09,949 WARN L194 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:35:12,597 WARN L194 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 276 DAG size of output: 231 [2020-11-07 05:35:25,834 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:35:28,592 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:35:31,311 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:35:34,049 WARN L194 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:35:35,061 WARN L194 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:35:36,035 WARN L194 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:35:37,012 WARN L194 SmtUtils]: Spent 965.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:35:39,728 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:35:40,749 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:35:43,486 WARN L194 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:35:44,709 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-11-07 05:35:45,982 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-11-07 05:35:46,834 WARN L194 SmtUtils]: Spent 841.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-11-07 05:35:47,944 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 156 DAG size of output: 74 [2020-11-07 05:35:48,749 WARN L194 SmtUtils]: Spent 794.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-11-07 05:35:49,960 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:35:52,873 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:35:54,628 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 235 DAG size of output: 78 [2020-11-07 05:35:55,981 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 208 DAG size of output: 74 [2020-11-07 05:35:58,856 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:01,824 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:02,852 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:36:03,714 WARN L194 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-11-07 05:36:04,639 WARN L194 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:36:05,855 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 199 DAG size of output: 74 [2020-11-07 05:36:08,742 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:09,533 WARN L194 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:36:10,588 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:36:11,445 WARN L194 SmtUtils]: Spent 846.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-11-07 05:36:12,818 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 226 DAG size of output: 81 [2020-11-07 05:36:13,850 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:36:15,145 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 165 DAG size of output: 78 [2020-11-07 05:36:18,050 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:19,329 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-11-07 05:36:22,239 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:23,114 WARN L194 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-11-07 05:36:24,265 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 152 DAG size of output: 72 [2020-11-07 05:36:25,472 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 160 DAG size of output: 73 [2020-11-07 05:36:28,384 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:29,537 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-11-07 05:36:30,589 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:36:31,403 WARN L194 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:36:32,316 WARN L194 SmtUtils]: Spent 899.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 65 [2020-11-07 05:36:34,004 WARN L194 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 194 DAG size of output: 86 [2020-11-07 05:36:34,872 WARN L194 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 70 [2020-11-07 05:36:35,744 WARN L194 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 71 [2020-11-07 05:36:38,667 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:39,712 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 161 DAG size of output: 81 [2020-11-07 05:36:40,938 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 205 DAG size of output: 71 [2020-11-07 05:36:42,243 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 169 DAG size of output: 77 [2020-11-07 05:36:43,099 WARN L194 SmtUtils]: Spent 844.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-11-07 05:36:44,023 WARN L194 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-11-07 05:36:45,506 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 216 DAG size of output: 81 [2020-11-07 05:36:46,301 WARN L194 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 67 [2020-11-07 05:36:47,548 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-11-07 05:36:48,902 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 160 DAG size of output: 75 [2020-11-07 05:36:49,819 WARN L194 SmtUtils]: Spent 906.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:36:52,756 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:36:53,903 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2020-11-07 05:36:55,281 WARN L194 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-11-07 05:36:56,335 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:36:57,134 WARN L194 SmtUtils]: Spent 788.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:37:00,085 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:00,893 WARN L194 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:37:01,901 WARN L194 SmtUtils]: Spent 995.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:37:04,695 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:37:07,484 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:37:10,287 WARN L194 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:37:11,338 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:37:12,383 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:37:13,433 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:37:16,221 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:37:19,180 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:19,998 WARN L194 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:37:21,955 WARN L194 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 178 DAG size of output: 81 [2020-11-07 05:37:24,919 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:26,076 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:37:27,646 WARN L194 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 213 DAG size of output: 75 [2020-11-07 05:37:28,811 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 155 DAG size of output: 73 [2020-11-07 05:37:29,939 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-11-07 05:37:31,178 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:37:32,967 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 212 DAG size of output: 76 [2020-11-07 05:37:34,539 WARN L194 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 235 DAG size of output: 76 [2020-11-07 05:37:35,378 WARN L194 SmtUtils]: Spent 828.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:37:36,396 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 206 DAG size of output: 71 [2020-11-07 05:37:37,557 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 153 DAG size of output: 74 [2020-11-07 05:37:40,530 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:41,957 WARN L194 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 164 DAG size of output: 83 [2020-11-07 05:37:42,864 WARN L194 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2020-11-07 05:37:43,683 WARN L194 SmtUtils]: Spent 808.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:37:45,015 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 159 DAG size of output: 81 [2020-11-07 05:37:45,906 WARN L194 SmtUtils]: Spent 881.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2020-11-07 05:37:46,974 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:37:47,788 WARN L194 SmtUtils]: Spent 803.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 69 [2020-11-07 05:37:50,768 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:53,778 WARN L194 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:37:54,841 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:37:57,682 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:38:00,533 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:38:03,371 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:38:04,403 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:38:05,335 WARN L194 SmtUtils]: Spent 921.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-11-07 05:38:06,909 WARN L194 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 169 DAG size of output: 79 [2020-11-07 05:38:09,897 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:38:10,805 WARN L194 SmtUtils]: Spent 897.00 ms on a formula simplification. DAG size of input: 157 DAG size of output: 73 [2020-11-07 05:38:11,623 WARN L194 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2020-11-07 05:38:12,833 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 154 DAG size of output: 72 [2020-11-07 05:38:15,131 WARN L194 SmtUtils]: Spent 2.28 s on a formula simplification. DAG size of input: 239 DAG size of output: 85 [2020-11-07 05:38:16,573 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 207 DAG size of output: 75 [2020-11-07 05:38:17,648 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 167 DAG size of output: 79 [2020-11-07 05:38:19,126 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 176 DAG size of output: 72 [2020-11-07 05:38:20,237 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:38:21,195 WARN L194 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-11-07 05:38:22,521 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 166 DAG size of output: 76 [2020-11-07 05:38:25,555 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:38:26,843 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-11-07 05:38:29,862 WARN L194 SmtUtils]: Spent 3.00 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:38:31,162 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-11-07 05:38:32,234 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:38:33,270 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:38:36,133 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:38:37,634 WARN L194 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 215 DAG size of output: 77 [2020-11-07 05:38:39,230 WARN L194 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 166 DAG size of output: 79 [2020-11-07 05:38:42,261 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:38:43,558 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-11-07 05:38:44,450 WARN L194 SmtUtils]: Spent 878.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 67 [2020-11-07 05:38:45,600 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 151 DAG size of output: 69 [2020-11-07 05:38:46,601 WARN L194 SmtUtils]: Spent 990.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 79 [2020-11-07 05:38:47,715 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:38:48,806 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:38:51,847 WARN L194 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:38:52,810 WARN L194 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-11-07 05:38:53,973 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 155 DAG size of output: 70 [2020-11-07 05:38:55,229 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2020-11-07 05:38:56,312 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2020-11-07 05:38:57,294 WARN L194 SmtUtils]: Spent 968.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 70 [2020-11-07 05:38:58,285 WARN L194 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 71 [2020-11-07 05:38:59,398 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:39:00,768 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 162 DAG size of output: 80 [2020-11-07 05:39:02,098 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 164 DAG size of output: 71 [2020-11-07 05:39:03,505 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 181 DAG size of output: 77 [2020-11-07 05:39:05,152 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 219 DAG size of output: 79 [2020-11-07 05:39:06,075 WARN L194 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 71 [2020-11-07 05:39:07,147 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 165 DAG size of output: 75 [2020-11-07 05:39:08,112 WARN L194 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 72 [2020-11-07 05:39:09,841 WARN L194 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 191 DAG size of output: 81 [2020-11-07 05:39:10,786 WARN L194 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 71 [2020-11-07 05:39:11,834 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:39:13,271 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-11-07 05:39:16,181 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:19,089 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:20,530 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-11-07 05:39:21,969 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-11-07 05:39:23,018 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:39:24,066 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 156 DAG size of output: 73 [2020-11-07 05:39:27,142 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:39:28,274 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 150 DAG size of output: 68 [2020-11-07 05:39:29,277 WARN L194 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 80 [2020-11-07 05:39:30,223 WARN L194 SmtUtils]: Spent 935.00 ms on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:39:33,146 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:36,221 WARN L194 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:39:37,994 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-11-07 05:39:39,132 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:39:42,060 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:43,161 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:39:44,248 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:39:45,310 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:39:48,233 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:49,331 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:39:50,429 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:39:53,351 WARN L194 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:54,419 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:39:57,338 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:39:58,436 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:39:59,543 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 148 DAG size of output: 66 [2020-11-07 05:40:00,413 WARN L194 SmtUtils]: Spent 860.00 ms on a formula simplification. DAG size of input: 147 DAG size of output: 65 [2020-11-07 05:40:01,304 WARN L194 SmtUtils]: Spent 880.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-11-07 05:40:04,415 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:06,203 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-11-07 05:40:09,324 WARN L194 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:10,572 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 157 DAG size of output: 75 [2020-11-07 05:40:11,865 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 155 DAG size of output: 74 [2020-11-07 05:40:12,933 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:40:13,724 WARN L194 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 56 [2020-11-07 05:40:16,671 WARN L194 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:40:19,788 WARN L194 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:20,953 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:40:21,907 WARN L194 SmtUtils]: Spent 942.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 67 [2020-11-07 05:40:24,859 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:40:25,658 WARN L194 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 56 [2020-11-07 05:40:27,187 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 207 DAG size of output: 67 [2020-11-07 05:40:28,188 WARN L194 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:40:29,666 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 223 DAG size of output: 81 [2020-11-07 05:40:30,860 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:40:32,185 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 156 DAG size of output: 71 [2020-11-07 05:40:35,318 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:38,454 WARN L194 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:39,758 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 156 DAG size of output: 75 [2020-11-07 05:40:40,779 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 161 DAG size of output: 72 [2020-11-07 05:40:41,947 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:40:42,836 WARN L194 SmtUtils]: Spent 879.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 70 [2020-11-07 05:40:43,995 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:40:44,875 WARN L194 SmtUtils]: Spent 869.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-11-07 05:40:46,691 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-11-07 05:40:47,685 WARN L194 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 69 [2020-11-07 05:40:48,905 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 153 DAG size of output: 69 [2020-11-07 05:40:50,052 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:40:51,196 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 151 DAG size of output: 70 [2020-11-07 05:40:52,752 WARN L194 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 166 DAG size of output: 78 [2020-11-07 05:40:55,903 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:40:57,355 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 180 DAG size of output: 77 [2020-11-07 05:40:59,143 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 168 DAG size of output: 80 [2020-11-07 05:41:00,102 WARN L194 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2020-11-07 05:41:01,205 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 155 DAG size of output: 72 [2020-11-07 05:41:04,355 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:05,578 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-11-07 05:41:08,737 WARN L194 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:10,146 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 162 DAG size of output: 75 [2020-11-07 05:41:11,153 WARN L194 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 167 DAG size of output: 78 [2020-11-07 05:41:12,391 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 152 DAG size of output: 72 [2020-11-07 05:41:15,786 WARN L194 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:16,784 WARN L194 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 69 [2020-11-07 05:41:20,030 WARN L194 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 281 DAG size of output: 92 [2020-11-07 05:41:21,022 WARN L194 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-11-07 05:41:22,651 WARN L194 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 168 DAG size of output: 77 [2020-11-07 05:41:24,010 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 198 DAG size of output: 71 [2020-11-07 05:41:24,934 WARN L194 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 74 [2020-11-07 05:41:28,230 WARN L194 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:29,132 WARN L194 SmtUtils]: Spent 892.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 63 [2020-11-07 05:41:32,404 WARN L194 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:34,010 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 166 DAG size of output: 79 [2020-11-07 05:41:34,967 WARN L194 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 65 [2020-11-07 05:41:36,076 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 206 DAG size of output: 71 [2020-11-07 05:41:37,030 WARN L194 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 71 [2020-11-07 05:41:40,171 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:41:41,319 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 196 DAG size of output: 70 [2020-11-07 05:41:42,465 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:41:43,557 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:41:46,539 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:41:47,635 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:41:50,610 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:41:53,922 WARN L194 SmtUtils]: Spent 3.30 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:54,836 WARN L194 SmtUtils]: Spent 905.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 68 [2020-11-07 05:41:58,157 WARN L194 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:41:59,571 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 162 DAG size of output: 82 [2020-11-07 05:42:00,730 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:42:03,941 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:05,738 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 199 DAG size of output: 73 [2020-11-07 05:42:06,904 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:42:07,846 WARN L194 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-11-07 05:42:11,039 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:12,320 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 152 DAG size of output: 70 [2020-11-07 05:42:15,655 WARN L194 SmtUtils]: Spent 3.32 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:16,756 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 195 DAG size of output: 72 [2020-11-07 05:42:19,902 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 290 DAG size of output: 89 [2020-11-07 05:42:23,098 WARN L194 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:24,133 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:42:25,155 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 148 DAG size of output: 68 [2020-11-07 05:42:26,468 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 149 DAG size of output: 66 [2020-11-07 05:42:29,683 WARN L194 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:30,707 WARN L194 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 69 [2020-11-07 05:42:34,008 WARN L194 SmtUtils]: Spent 3.29 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:35,247 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 155 DAG size of output: 69 [2020-11-07 05:42:36,561 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 198 DAG size of output: 72 [2020-11-07 05:42:39,732 WARN L194 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:41,563 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 209 DAG size of output: 77 [2020-11-07 05:42:42,923 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 162 DAG size of output: 73 [2020-11-07 05:42:44,262 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 150 DAG size of output: 69 [2020-11-07 05:42:45,252 WARN L194 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 161 DAG size of output: 75 [2020-11-07 05:42:48,490 WARN L194 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:51,970 WARN L194 SmtUtils]: Spent 3.46 s on a formula simplification. DAG size of input: 295 DAG size of output: 90 [2020-11-07 05:42:53,172 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 148 DAG size of output: 65 [2020-11-07 05:42:54,170 WARN L194 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 69