/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/Problem11_label18.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:22:58,968 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:22:58,972 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:22:59,023 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 06:22:59,024 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 06:22:59,028 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 06:22:59,031 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 06:22:59,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 06:22:59,041 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 06:22:59,047 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 06:22:59,048 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 06:22:59,049 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 06:22:59,049 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:22:59,052 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:22:59,054 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:22:59,056 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:22:59,057 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:22:59,059 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:22:59,066 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:22:59,074 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:22:59,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:22:59,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:22:59,078 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:22:59,081 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:22:59,097 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:22:59,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:22:59,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:22:59,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:22:59,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:22:59,135 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:22:59,135 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:22:59,139 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:22:59,140 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:22:59,140 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:22:59,140 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:22:59,140 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:22:59,141 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:22:59,141 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:22:59,141 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:22:59,142 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:22:59,142 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:22:59,142 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:22:59,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:22:59,143 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:22:59,143 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:22:59,143 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:22:59,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:22:59,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:22:59,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:22:59,144 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:22:59,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:22:59,145 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:22:59,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:22:59,587 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:22:59,590 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:22:59,591 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:22:59,592 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:22:59,593 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-11-07 06:22:59,664 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f03e01c/66df561c5b9a4f838324e8b88703d629/FLAGc2c7af81f [2020-11-07 06:23:00,417 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:23:00,418 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem11_label18.c [2020-11-07 06:23:00,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f03e01c/66df561c5b9a4f838324e8b88703d629/FLAGc2c7af81f [2020-11-07 06:23:00,608 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/06f03e01c/66df561c5b9a4f838324e8b88703d629 [2020-11-07 06:23:00,611 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:23:00,619 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:23:00,621 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:23:00,621 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:23:00,625 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:23:00,626 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:23:00" (1/1) ... [2020-11-07 06:23:00,630 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@139b64ea and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:00, skipping insertion in model container [2020-11-07 06:23:00,630 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:23:00" (1/1) ... [2020-11-07 06:23:00,638 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:23:00,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:23:01,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:23:01,307 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:23:01,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:23:01,587 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:23:01,588 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01 WrapperNode [2020-11-07 06:23:01,588 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:23:01,589 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:23:01,589 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:23:01,589 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:23:01,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,634 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,635 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,743 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,767 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,780 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... [2020-11-07 06:23:01,793 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:23:01,795 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:23:01,795 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:23:01,795 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:23:01,796 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:23:01,875 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:23:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:23:01,876 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:23:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 06:23:01,877 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:23:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 06:23:01,877 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:23:01,878 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 06:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:23:01,879 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:23:01,880 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:23:04,066 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:23:04,066 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:23:04,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:23:04 BoogieIcfgContainer [2020-11-07 06:23:04,069 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:23:04,071 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:23:04,071 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:23:04,074 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:23:04,075 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:23:00" (1/3) ... [2020-11-07 06:23:04,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c282186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:23:04, skipping insertion in model container [2020-11-07 06:23:04,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:23:01" (2/3) ... [2020-11-07 06:23:04,076 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4c282186 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:23:04, skipping insertion in model container [2020-11-07 06:23:04,076 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:23:04" (3/3) ... [2020-11-07 06:23:04,078 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem11_label18.c [2020-11-07 06:23:04,094 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:23:04,098 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:23:04,110 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:23:04,134 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:23:04,134 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:23:04,135 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:23:04,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:23:04,135 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:23:04,135 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:23:04,135 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:23:04,135 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:23:04,172 INFO L276 IsEmpty]: Start isEmpty. Operand 825 states. [2020-11-07 06:23:04,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-11-07 06:23:04,185 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:04,185 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] [2020-11-07 06:23:04,186 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:04,192 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:04,192 INFO L82 PathProgramCache]: Analyzing trace with hash 505397221, now seen corresponding path program 1 times [2020-11-07 06:23:04,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:04,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73708538] [2020-11-07 06:23:04,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:04,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:04,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:04,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:23:04,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73708538] [2020-11-07 06:23:04,633 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:23:04,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 06:23:04,634 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507045933] [2020-11-07 06:23:04,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 06:23:04,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:04,653 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 06:23:04,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 06:23:04,656 INFO L87 Difference]: Start difference. First operand 825 states. Second operand 4 states. [2020-11-07 06:23:09,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:09,253 INFO L93 Difference]: Finished difference Result 1970 states and 2566 transitions. [2020-11-07 06:23:09,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 06:23:09,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 64 [2020-11-07 06:23:09,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:09,289 INFO L225 Difference]: With dead ends: 1970 [2020-11-07 06:23:09,290 INFO L226 Difference]: Without dead ends: 1096 [2020-11-07 06:23:09,303 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:23:09,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1096 states. [2020-11-07 06:23:09,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1096 to 1048. [2020-11-07 06:23:09,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1048 states. [2020-11-07 06:23:09,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1048 states to 1048 states and 1236 transitions. [2020-11-07 06:23:09,586 INFO L78 Accepts]: Start accepts. Automaton has 1048 states and 1236 transitions. Word has length 64 [2020-11-07 06:23:09,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:09,588 INFO L481 AbstractCegarLoop]: Abstraction has 1048 states and 1236 transitions. [2020-11-07 06:23:09,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 06:23:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1048 states and 1236 transitions. [2020-11-07 06:23:09,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-11-07 06:23:09,603 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:09,604 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:23:09,605 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:23:09,605 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:09,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:09,606 INFO L82 PathProgramCache]: Analyzing trace with hash -742084967, now seen corresponding path program 1 times [2020-11-07 06:23:09,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:09,606 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1494252564] [2020-11-07 06:23:09,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:09,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:09,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:09,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:09,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:09,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:10,098 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:23:10,098 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1494252564] [2020-11-07 06:23:10,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:23:10,099 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 06:23:10,099 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1421013196] [2020-11-07 06:23:10,101 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 06:23:10,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:10,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 06:23:10,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 06:23:10,102 INFO L87 Difference]: Start difference. First operand 1048 states and 1236 transitions. Second operand 8 states. [2020-11-07 06:23:16,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:16,278 INFO L93 Difference]: Finished difference Result 3264 states and 4042 transitions. [2020-11-07 06:23:16,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 06:23:16,281 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 146 [2020-11-07 06:23:16,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:16,301 INFO L225 Difference]: With dead ends: 3264 [2020-11-07 06:23:16,302 INFO L226 Difference]: Without dead ends: 2241 [2020-11-07 06:23:16,307 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-11-07 06:23:16,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2241 states. [2020-11-07 06:23:16,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2241 to 1849. [2020-11-07 06:23:16,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1849 states. [2020-11-07 06:23:16,682 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1849 states to 1849 states and 2326 transitions. [2020-11-07 06:23:16,683 INFO L78 Accepts]: Start accepts. Automaton has 1849 states and 2326 transitions. Word has length 146 [2020-11-07 06:23:16,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:16,684 INFO L481 AbstractCegarLoop]: Abstraction has 1849 states and 2326 transitions. [2020-11-07 06:23:16,684 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 06:23:16,684 INFO L276 IsEmpty]: Start isEmpty. Operand 1849 states and 2326 transitions. [2020-11-07 06:23:16,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-11-07 06:23:16,686 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:16,687 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:23:16,687 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:23:16,687 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:16,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:16,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1293057356, now seen corresponding path program 1 times [2020-11-07 06:23:16,688 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:16,689 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1280900820] [2020-11-07 06:23:16,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:16,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:16,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:16,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:16,859 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:16,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:16,966 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:23:16,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1280900820] [2020-11-07 06:23:16,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:23:16,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-11-07 06:23:16,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [174664552] [2020-11-07 06:23:16,968 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:23:16,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:16,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:23:16,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:23:16,969 INFO L87 Difference]: Start difference. First operand 1849 states and 2326 transitions. Second operand 7 states. [2020-11-07 06:23:22,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:22,299 INFO L93 Difference]: Finished difference Result 4812 states and 6293 transitions. [2020-11-07 06:23:22,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:23:22,300 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 153 [2020-11-07 06:23:22,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:22,326 INFO L225 Difference]: With dead ends: 4812 [2020-11-07 06:23:22,326 INFO L226 Difference]: Without dead ends: 2988 [2020-11-07 06:23:22,337 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:23:22,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2988 states. [2020-11-07 06:23:22,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2988 to 2925. [2020-11-07 06:23:22,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2925 states. [2020-11-07 06:23:22,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2925 states to 2925 states and 3649 transitions. [2020-11-07 06:23:22,804 INFO L78 Accepts]: Start accepts. Automaton has 2925 states and 3649 transitions. Word has length 153 [2020-11-07 06:23:22,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:22,807 INFO L481 AbstractCegarLoop]: Abstraction has 2925 states and 3649 transitions. [2020-11-07 06:23:22,807 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:23:22,807 INFO L276 IsEmpty]: Start isEmpty. Operand 2925 states and 3649 transitions. [2020-11-07 06:23:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-11-07 06:23:22,824 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:22,824 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:22,825 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:23:22,826 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:22,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:22,827 INFO L82 PathProgramCache]: Analyzing trace with hash -167250543, now seen corresponding path program 1 times [2020-11-07 06:23:22,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:22,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1135890320] [2020-11-07 06:23:22,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:22,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:23,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:23,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:23,095 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-11-07 06:23:23,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:23,275 INFO L134 CoverageAnalysis]: Checked inductivity of 150 backedges. 147 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:23:23,275 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1135890320] [2020-11-07 06:23:23,275 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:23,275 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:23:23,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [105470200] [2020-11-07 06:23:23,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:23:23,277 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:23,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:23:23,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:23:23,278 INFO L87 Difference]: Start difference. First operand 2925 states and 3649 transitions. Second operand 7 states. [2020-11-07 06:23:28,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:28,113 INFO L93 Difference]: Finished difference Result 6120 states and 8182 transitions. [2020-11-07 06:23:28,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:23:28,114 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 229 [2020-11-07 06:23:28,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:28,153 INFO L225 Difference]: With dead ends: 6120 [2020-11-07 06:23:28,153 INFO L226 Difference]: Without dead ends: 3614 [2020-11-07 06:23:28,168 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:23:28,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3614 states. [2020-11-07 06:23:28,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3614 to 3300. [2020-11-07 06:23:28,685 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3300 states. [2020-11-07 06:23:28,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3300 states to 3300 states and 4071 transitions. [2020-11-07 06:23:28,698 INFO L78 Accepts]: Start accepts. Automaton has 3300 states and 4071 transitions. Word has length 229 [2020-11-07 06:23:28,699 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:28,699 INFO L481 AbstractCegarLoop]: Abstraction has 3300 states and 4071 transitions. [2020-11-07 06:23:28,699 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:23:28,699 INFO L276 IsEmpty]: Start isEmpty. Operand 3300 states and 4071 transitions. [2020-11-07 06:23:28,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-11-07 06:23:28,707 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:28,707 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:28,707 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 06:23:28,708 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:28,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:28,708 INFO L82 PathProgramCache]: Analyzing trace with hash -571991014, now seen corresponding path program 1 times [2020-11-07 06:23:28,712 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:28,712 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1430692292] [2020-11-07 06:23:28,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:28,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:28,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:28,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:28,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:28,911 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-11-07 06:23:28,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-11-07 06:23:29,000 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1430692292] [2020-11-07 06:23:29,000 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:29,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:23:29,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375300481] [2020-11-07 06:23:29,001 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:23:29,002 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:29,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:23:29,002 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:23:29,002 INFO L87 Difference]: Start difference. First operand 3300 states and 4071 transitions. Second operand 5 states. [2020-11-07 06:23:33,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:33,605 INFO L93 Difference]: Finished difference Result 8213 states and 10417 transitions. [2020-11-07 06:23:33,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:23:33,606 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-11-07 06:23:33,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:33,651 INFO L225 Difference]: With dead ends: 8213 [2020-11-07 06:23:33,652 INFO L226 Difference]: Without dead ends: 5332 [2020-11-07 06:23:33,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:23:33,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5332 states. [2020-11-07 06:23:34,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5332 to 5301. [2020-11-07 06:23:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5301 states. [2020-11-07 06:23:34,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5301 states to 5301 states and 6619 transitions. [2020-11-07 06:23:34,654 INFO L78 Accepts]: Start accepts. Automaton has 5301 states and 6619 transitions. Word has length 237 [2020-11-07 06:23:34,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:34,655 INFO L481 AbstractCegarLoop]: Abstraction has 5301 states and 6619 transitions. [2020-11-07 06:23:34,655 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:23:34,656 INFO L276 IsEmpty]: Start isEmpty. Operand 5301 states and 6619 transitions. [2020-11-07 06:23:34,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2020-11-07 06:23:34,664 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:34,665 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:34,665 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 06:23:34,665 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:34,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:34,666 INFO L82 PathProgramCache]: Analyzing trace with hash -2078689973, now seen corresponding path program 1 times [2020-11-07 06:23:34,666 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:34,666 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [73628177] [2020-11-07 06:23:34,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:34,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:34,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:34,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:34,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:34,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:34,905 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-11-07 06:23:35,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:35,177 INFO L134 CoverageAnalysis]: Checked inductivity of 154 backedges. 151 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:23:35,178 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [73628177] [2020-11-07 06:23:35,180 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:35,180 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:23:35,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721178672] [2020-11-07 06:23:35,181 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:23:35,187 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:35,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:23:35,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:23:35,188 INFO L87 Difference]: Start difference. First operand 5301 states and 6619 transitions. Second operand 7 states. [2020-11-07 06:23:41,599 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:41,599 INFO L93 Difference]: Finished difference Result 13560 states and 18076 transitions. [2020-11-07 06:23:41,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:23:41,600 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 260 [2020-11-07 06:23:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:41,686 INFO L225 Difference]: With dead ends: 13560 [2020-11-07 06:23:41,687 INFO L226 Difference]: Without dead ends: 8678 [2020-11-07 06:23:41,712 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:23:41,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8678 states. [2020-11-07 06:23:42,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8678 to 7547. [2020-11-07 06:23:42,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7547 states. [2020-11-07 06:23:42,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7547 states to 7547 states and 9445 transitions. [2020-11-07 06:23:42,776 INFO L78 Accepts]: Start accepts. Automaton has 7547 states and 9445 transitions. Word has length 260 [2020-11-07 06:23:42,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:42,777 INFO L481 AbstractCegarLoop]: Abstraction has 7547 states and 9445 transitions. [2020-11-07 06:23:42,777 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:23:42,777 INFO L276 IsEmpty]: Start isEmpty. Operand 7547 states and 9445 transitions. [2020-11-07 06:23:42,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2020-11-07 06:23:42,792 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:42,793 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:42,793 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 06:23:42,793 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:42,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:42,794 INFO L82 PathProgramCache]: Analyzing trace with hash 1831944684, now seen corresponding path program 1 times [2020-11-07 06:23:42,794 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:42,794 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [182753032] [2020-11-07 06:23:42,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:42,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:43,061 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:43,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:43,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:43,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:43,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-11-07 06:23:43,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:43,440 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 102 trivial. 0 not checked. [2020-11-07 06:23:43,441 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [182753032] [2020-11-07 06:23:43,441 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:43,441 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:23:43,441 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1669666141] [2020-11-07 06:23:43,442 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:23:43,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:43,445 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:23:43,446 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:23:43,446 INFO L87 Difference]: Start difference. First operand 7547 states and 9445 transitions. Second operand 5 states. [2020-11-07 06:23:47,468 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:47,469 INFO L93 Difference]: Finished difference Result 8954 states and 11241 transitions. [2020-11-07 06:23:47,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:23:47,469 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 310 [2020-11-07 06:23:47,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:47,509 INFO L225 Difference]: With dead ends: 8954 [2020-11-07 06:23:47,509 INFO L226 Difference]: Without dead ends: 8951 [2020-11-07 06:23:47,512 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:23:47,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8951 states. [2020-11-07 06:23:48,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8951 to 8931. [2020-11-07 06:23:48,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8931 states. [2020-11-07 06:23:48,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8931 states to 8931 states and 11218 transitions. [2020-11-07 06:23:48,691 INFO L78 Accepts]: Start accepts. Automaton has 8931 states and 11218 transitions. Word has length 310 [2020-11-07 06:23:48,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:48,692 INFO L481 AbstractCegarLoop]: Abstraction has 8931 states and 11218 transitions. [2020-11-07 06:23:48,692 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:23:48,692 INFO L276 IsEmpty]: Start isEmpty. Operand 8931 states and 11218 transitions. [2020-11-07 06:23:48,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 322 [2020-11-07 06:23:48,708 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:48,709 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:48,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 06:23:48,709 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:48,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:48,710 INFO L82 PathProgramCache]: Analyzing trace with hash 391675070, now seen corresponding path program 1 times [2020-11-07 06:23:48,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:48,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1960344065] [2020-11-07 06:23:48,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:48,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:48,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:48,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:48,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:48,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:23:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 182 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:23:49,159 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1960344065] [2020-11-07 06:23:49,159 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:49,160 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:23:49,161 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [798583755] [2020-11-07 06:23:49,162 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:23:49,163 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:49,163 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:23:49,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:23:49,164 INFO L87 Difference]: Start difference. First operand 8931 states and 11218 transitions. Second operand 7 states. [2020-11-07 06:23:56,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:23:56,054 INFO L93 Difference]: Finished difference Result 19321 states and 24438 transitions. [2020-11-07 06:23:56,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:23:56,055 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 321 [2020-11-07 06:23:56,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:23:56,116 INFO L225 Difference]: With dead ends: 19321 [2020-11-07 06:23:56,116 INFO L226 Difference]: Without dead ends: 10816 [2020-11-07 06:23:56,151 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:23:56,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10816 states. [2020-11-07 06:23:57,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10816 to 10394. [2020-11-07 06:23:57,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10394 states. [2020-11-07 06:23:57,953 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10394 states to 10394 states and 12846 transitions. [2020-11-07 06:23:57,954 INFO L78 Accepts]: Start accepts. Automaton has 10394 states and 12846 transitions. Word has length 321 [2020-11-07 06:23:57,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:23:57,955 INFO L481 AbstractCegarLoop]: Abstraction has 10394 states and 12846 transitions. [2020-11-07 06:23:57,955 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:23:57,955 INFO L276 IsEmpty]: Start isEmpty. Operand 10394 states and 12846 transitions. [2020-11-07 06:23:57,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-11-07 06:23:57,975 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:23:57,976 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:23:57,976 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 06:23:57,976 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:23:57,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:23:57,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1322996460, now seen corresponding path program 1 times [2020-11-07 06:23:57,977 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:23:57,978 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1679206632] [2020-11-07 06:23:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:23:58,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:58,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:23:58,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:58,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:23:58,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:58,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:23:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:23:58,378 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 77 proven. 2 refuted. 0 times theorem prover too weak. 108 trivial. 0 not checked. [2020-11-07 06:23:58,379 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1679206632] [2020-11-07 06:23:58,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:23:58,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:23:58,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552126939] [2020-11-07 06:23:58,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:23:58,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:23:58,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:23:58,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:23:58,381 INFO L87 Difference]: Start difference. First operand 10394 states and 12846 transitions. Second operand 5 states. [2020-11-07 06:24:02,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:02,961 INFO L93 Difference]: Finished difference Result 18954 states and 23440 transitions. [2020-11-07 06:24:02,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:24:02,962 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-11-07 06:24:02,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:03,032 INFO L225 Difference]: With dead ends: 18954 [2020-11-07 06:24:03,033 INFO L226 Difference]: Without dead ends: 10398 [2020-11-07 06:24:03,063 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:24:03,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10398 states. [2020-11-07 06:24:04,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10398 to 10392. [2020-11-07 06:24:04,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10392 states. [2020-11-07 06:24:04,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10392 states to 10392 states and 12761 transitions. [2020-11-07 06:24:04,999 INFO L78 Accepts]: Start accepts. Automaton has 10392 states and 12761 transitions. Word has length 322 [2020-11-07 06:24:04,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:04,999 INFO L481 AbstractCegarLoop]: Abstraction has 10392 states and 12761 transitions. [2020-11-07 06:24:04,999 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:24:04,999 INFO L276 IsEmpty]: Start isEmpty. Operand 10392 states and 12761 transitions. [2020-11-07 06:24:05,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 439 [2020-11-07 06:24:05,038 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:05,038 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:24:05,038 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 06:24:05,038 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:05,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:05,039 INFO L82 PathProgramCache]: Analyzing trace with hash -2050756235, now seen corresponding path program 1 times [2020-11-07 06:24:05,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:05,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602441983] [2020-11-07 06:24:05,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:05,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:05,242 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:05,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:05,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:05,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:24:05,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:05,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2020-11-07 06:24:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:05,613 INFO L134 CoverageAnalysis]: Checked inductivity of 446 backedges. 334 proven. 2 refuted. 0 times theorem prover too weak. 110 trivial. 0 not checked. [2020-11-07 06:24:05,614 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602441983] [2020-11-07 06:24:05,614 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:05,614 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:24:05,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [883066305] [2020-11-07 06:24:05,615 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:24:05,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:05,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:24:05,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:24:05,620 INFO L87 Difference]: Start difference. First operand 10392 states and 12761 transitions. Second operand 7 states. [2020-11-07 06:24:12,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:12,634 INFO L93 Difference]: Finished difference Result 21062 states and 25818 transitions. [2020-11-07 06:24:12,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:24:12,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 438 [2020-11-07 06:24:12,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:12,691 INFO L225 Difference]: With dead ends: 21062 [2020-11-07 06:24:12,692 INFO L226 Difference]: Without dead ends: 10890 [2020-11-07 06:24:12,714 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:24:12,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10890 states. [2020-11-07 06:24:14,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10890 to 10688. [2020-11-07 06:24:14,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10688 states. [2020-11-07 06:24:14,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10688 states to 10688 states and 12698 transitions. [2020-11-07 06:24:14,235 INFO L78 Accepts]: Start accepts. Automaton has 10688 states and 12698 transitions. Word has length 438 [2020-11-07 06:24:14,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:14,236 INFO L481 AbstractCegarLoop]: Abstraction has 10688 states and 12698 transitions. [2020-11-07 06:24:14,236 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:24:14,236 INFO L276 IsEmpty]: Start isEmpty. Operand 10688 states and 12698 transitions. [2020-11-07 06:24:14,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2020-11-07 06:24:14,267 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:14,268 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:24:14,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 06:24:14,268 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:14,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:14,269 INFO L82 PathProgramCache]: Analyzing trace with hash 549065546, now seen corresponding path program 1 times [2020-11-07 06:24:14,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:14,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288032684] [2020-11-07 06:24:14,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:14,458 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:14,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:14,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:14,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:14,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:24:14,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:14,596 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-11-07 06:24:14,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:14,783 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 126 proven. 2 refuted. 0 times theorem prover too weak. 340 trivial. 0 not checked. [2020-11-07 06:24:14,783 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288032684] [2020-11-07 06:24:14,784 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:14,784 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:24:14,784 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240176497] [2020-11-07 06:24:14,785 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:24:14,785 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:14,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:24:14,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:24:14,786 INFO L87 Difference]: Start difference. First operand 10688 states and 12698 transitions. Second operand 5 states. [2020-11-07 06:24:19,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:19,593 INFO L93 Difference]: Finished difference Result 20518 states and 24429 transitions. [2020-11-07 06:24:19,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:24:19,594 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 467 [2020-11-07 06:24:19,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:19,642 INFO L225 Difference]: With dead ends: 20518 [2020-11-07 06:24:19,642 INFO L226 Difference]: Without dead ends: 11212 [2020-11-07 06:24:19,666 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:24:19,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11212 states. [2020-11-07 06:24:21,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11212 to 11206. [2020-11-07 06:24:21,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11206 states. [2020-11-07 06:24:21,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11206 states to 11206 states and 13087 transitions. [2020-11-07 06:24:21,183 INFO L78 Accepts]: Start accepts. Automaton has 11206 states and 13087 transitions. Word has length 467 [2020-11-07 06:24:21,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:21,183 INFO L481 AbstractCegarLoop]: Abstraction has 11206 states and 13087 transitions. [2020-11-07 06:24:21,184 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:24:21,184 INFO L276 IsEmpty]: Start isEmpty. Operand 11206 states and 13087 transitions. [2020-11-07 06:24:21,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-11-07 06:24:21,389 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:21,390 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:24:21,390 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 06:24:21,390 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:21,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:21,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1335139560, now seen corresponding path program 1 times [2020-11-07 06:24:21,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:21,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1002394644] [2020-11-07 06:24:21,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:21,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:21,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:21,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:21,680 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:21,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:21,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:24:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:21,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 319 [2020-11-07 06:24:21,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 525 backedges. 118 proven. 3 refuted. 0 times theorem prover too weak. 404 trivial. 0 not checked. [2020-11-07 06:24:22,170 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1002394644] [2020-11-07 06:24:22,170 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:22,170 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:24:22,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892885965] [2020-11-07 06:24:22,172 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:24:22,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:22,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:24:22,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:24:22,173 INFO L87 Difference]: Start difference. First operand 11206 states and 13087 transitions. Second operand 5 states. [2020-11-07 06:24:27,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:27,528 INFO L93 Difference]: Finished difference Result 21652 states and 25352 transitions. [2020-11-07 06:24:27,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:24:27,529 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 511 [2020-11-07 06:24:27,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:27,578 INFO L225 Difference]: With dead ends: 21652 [2020-11-07 06:24:27,578 INFO L226 Difference]: Without dead ends: 12279 [2020-11-07 06:24:27,599 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:24:27,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12279 states. [2020-11-07 06:24:29,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12279 to 12219. [2020-11-07 06:24:29,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12219 states. [2020-11-07 06:24:29,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12219 states to 12219 states and 14312 transitions. [2020-11-07 06:24:29,214 INFO L78 Accepts]: Start accepts. Automaton has 12219 states and 14312 transitions. Word has length 511 [2020-11-07 06:24:29,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:29,216 INFO L481 AbstractCegarLoop]: Abstraction has 12219 states and 14312 transitions. [2020-11-07 06:24:29,216 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:24:29,216 INFO L276 IsEmpty]: Start isEmpty. Operand 12219 states and 14312 transitions. [2020-11-07 06:24:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 544 [2020-11-07 06:24:29,240 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:29,240 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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 06:24:29,240 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 06:24:29,241 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:29,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:29,241 INFO L82 PathProgramCache]: Analyzing trace with hash 328073760, now seen corresponding path program 1 times [2020-11-07 06:24:29,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:29,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1498848330] [2020-11-07 06:24:29,242 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:29,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:29,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:24:29,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-11-07 06:24:29,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 394 [2020-11-07 06:24:29,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:29,983 INFO L134 CoverageAnalysis]: Checked inductivity of 793 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 313 trivial. 0 not checked. [2020-11-07 06:24:29,983 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1498848330] [2020-11-07 06:24:29,983 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:29,984 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:24:29,984 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304450386] [2020-11-07 06:24:29,984 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:24:29,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:29,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:24:29,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:24:29,985 INFO L87 Difference]: Start difference. First operand 12219 states and 14312 transitions. Second operand 7 states. [2020-11-07 06:24:36,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:36,825 INFO L93 Difference]: Finished difference Result 25018 states and 30389 transitions. [2020-11-07 06:24:36,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:24:36,826 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 543 [2020-11-07 06:24:36,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:36,915 INFO L225 Difference]: With dead ends: 25018 [2020-11-07 06:24:36,915 INFO L226 Difference]: Without dead ends: 14632 [2020-11-07 06:24:36,942 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:24:36,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14632 states. [2020-11-07 06:24:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14632 to 12647. [2020-11-07 06:24:39,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12647 states. [2020-11-07 06:24:39,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12647 states to 12647 states and 14859 transitions. [2020-11-07 06:24:39,074 INFO L78 Accepts]: Start accepts. Automaton has 12647 states and 14859 transitions. Word has length 543 [2020-11-07 06:24:39,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:39,075 INFO L481 AbstractCegarLoop]: Abstraction has 12647 states and 14859 transitions. [2020-11-07 06:24:39,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:24:39,075 INFO L276 IsEmpty]: Start isEmpty. Operand 12647 states and 14859 transitions. [2020-11-07 06:24:39,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 559 [2020-11-07 06:24:39,090 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:39,090 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-11-07 06:24:39,091 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 06:24:39,091 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:39,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:39,091 INFO L82 PathProgramCache]: Analyzing trace with hash 55291470, now seen corresponding path program 1 times [2020-11-07 06:24:39,091 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:39,092 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [605406146] [2020-11-07 06:24:39,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:39,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:39,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-11-07 06:24:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2020-11-07 06:24:39,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-11-07 06:24:39,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:39,797 INFO L134 CoverageAnalysis]: Checked inductivity of 810 backedges. 381 proven. 99 refuted. 0 times theorem prover too weak. 330 trivial. 0 not checked. [2020-11-07 06:24:39,798 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [605406146] [2020-11-07 06:24:39,798 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:39,798 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:24:39,798 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [87238516] [2020-11-07 06:24:39,799 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:24:39,799 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:39,799 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:24:39,800 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:24:39,800 INFO L87 Difference]: Start difference. First operand 12647 states and 14859 transitions. Second operand 7 states. [2020-11-07 06:24:47,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:24:47,380 INFO L93 Difference]: Finished difference Result 26153 states and 30881 transitions. [2020-11-07 06:24:47,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:24:47,381 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 558 [2020-11-07 06:24:47,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:24:47,436 INFO L225 Difference]: With dead ends: 26153 [2020-11-07 06:24:47,436 INFO L226 Difference]: Without dead ends: 14817 [2020-11-07 06:24:47,460 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:24:47,473 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14817 states. [2020-11-07 06:24:49,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14817 to 13440. [2020-11-07 06:24:49,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13440 states. [2020-11-07 06:24:49,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13440 states to 13440 states and 15784 transitions. [2020-11-07 06:24:49,580 INFO L78 Accepts]: Start accepts. Automaton has 13440 states and 15784 transitions. Word has length 558 [2020-11-07 06:24:49,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:24:49,581 INFO L481 AbstractCegarLoop]: Abstraction has 13440 states and 15784 transitions. [2020-11-07 06:24:49,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:24:49,581 INFO L276 IsEmpty]: Start isEmpty. Operand 13440 states and 15784 transitions. [2020-11-07 06:24:49,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 577 [2020-11-07 06:24:49,602 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:24:49,602 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:24:49,602 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 06:24:49,603 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:24:49,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:24:49,603 INFO L82 PathProgramCache]: Analyzing trace with hash 170541429, now seen corresponding path program 1 times [2020-11-07 06:24:49,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:24:49,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1357246933] [2020-11-07 06:24:49,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:24:49,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:49,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:24:49,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:49,862 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:24:49,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:49,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:24:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:50,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 316 [2020-11-07 06:24:50,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:50,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-11-07 06:24:50,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:24:50,442 INFO L134 CoverageAnalysis]: Checked inductivity of 823 backedges. 178 proven. 392 refuted. 0 times theorem prover too weak. 253 trivial. 0 not checked. [2020-11-07 06:24:50,442 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1357246933] [2020-11-07 06:24:50,442 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:24:50,443 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 06:24:50,443 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554879227] [2020-11-07 06:24:50,443 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 06:24:50,443 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:24:50,444 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 06:24:50,444 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-07 06:24:50,444 INFO L87 Difference]: Start difference. First operand 13440 states and 15784 transitions. Second operand 9 states. [2020-11-07 06:25:00,665 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:25:00,665 INFO L93 Difference]: Finished difference Result 30500 states and 36112 transitions. [2020-11-07 06:25:00,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 06:25:00,666 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 576 [2020-11-07 06:25:00,667 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:25:00,727 INFO L225 Difference]: With dead ends: 30500 [2020-11-07 06:25:00,727 INFO L226 Difference]: Without dead ends: 19283 [2020-11-07 06:25:00,748 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-11-07 06:25:00,764 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19283 states. [2020-11-07 06:25:03,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19283 to 18795. [2020-11-07 06:25:03,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18795 states. [2020-11-07 06:25:03,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18795 states to 18795 states and 22073 transitions. [2020-11-07 06:25:03,791 INFO L78 Accepts]: Start accepts. Automaton has 18795 states and 22073 transitions. Word has length 576 [2020-11-07 06:25:03,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:25:03,792 INFO L481 AbstractCegarLoop]: Abstraction has 18795 states and 22073 transitions. [2020-11-07 06:25:03,792 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 06:25:03,792 INFO L276 IsEmpty]: Start isEmpty. Operand 18795 states and 22073 transitions. [2020-11-07 06:25:03,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 668 [2020-11-07 06:25:03,835 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:25:03,835 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:25:03,836 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 06:25:03,836 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:25:03,836 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:25:03,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1689616405, now seen corresponding path program 1 times [2020-11-07 06:25:03,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:25:03,837 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [500801020] [2020-11-07 06:25:03,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:25:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:25:04,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:25:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-11-07 06:25:04,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-11-07 06:25:04,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2020-11-07 06:25:04,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 518 [2020-11-07 06:25:04,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:04,871 INFO L134 CoverageAnalysis]: Checked inductivity of 1225 backedges. 248 proven. 558 refuted. 0 times theorem prover too weak. 419 trivial. 0 not checked. [2020-11-07 06:25:04,871 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [500801020] [2020-11-07 06:25:04,871 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:25:04,871 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-11-07 06:25:04,872 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395765936] [2020-11-07 06:25:04,872 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 06:25:04,873 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:25:04,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 06:25:04,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-11-07 06:25:04,873 INFO L87 Difference]: Start difference. First operand 18795 states and 22073 transitions. Second operand 9 states. [2020-11-07 06:25:16,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:25:16,088 INFO L93 Difference]: Finished difference Result 42061 states and 49932 transitions. [2020-11-07 06:25:16,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-11-07 06:25:16,089 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 667 [2020-11-07 06:25:16,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:25:16,316 INFO L225 Difference]: With dead ends: 42061 [2020-11-07 06:25:16,316 INFO L226 Difference]: Without dead ends: 24308 [2020-11-07 06:25:16,343 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=101, Invalid=319, Unknown=0, NotChecked=0, Total=420 [2020-11-07 06:25:16,357 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24308 states. [2020-11-07 06:25:19,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24308 to 21770. [2020-11-07 06:25:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21770 states. [2020-11-07 06:25:19,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21770 states to 21770 states and 25478 transitions. [2020-11-07 06:25:19,526 INFO L78 Accepts]: Start accepts. Automaton has 21770 states and 25478 transitions. Word has length 667 [2020-11-07 06:25:19,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:25:19,526 INFO L481 AbstractCegarLoop]: Abstraction has 21770 states and 25478 transitions. [2020-11-07 06:25:19,526 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 06:25:19,526 INFO L276 IsEmpty]: Start isEmpty. Operand 21770 states and 25478 transitions. [2020-11-07 06:25:19,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2020-11-07 06:25:19,553 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:25:19,553 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-11-07 06:25:19,554 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 06:25:19,554 INFO L429 AbstractCegarLoop]: === Iteration 17 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:25:19,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:25:19,554 INFO L82 PathProgramCache]: Analyzing trace with hash 2055424256, now seen corresponding path program 1 times [2020-11-07 06:25:19,554 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:25:19,554 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [718975599] [2020-11-07 06:25:19,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:25:19,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:19,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:25:19,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:19,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:25:19,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:19,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:25:19,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:19,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 355 [2020-11-07 06:25:19,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:19,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 539 [2020-11-07 06:25:19,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:20,369 INFO L134 CoverageAnalysis]: Checked inductivity of 930 backedges. 173 proven. 8 refuted. 0 times theorem prover too weak. 749 trivial. 0 not checked. [2020-11-07 06:25:20,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [718975599] [2020-11-07 06:25:20,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:25:20,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:25:20,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737126993] [2020-11-07 06:25:20,371 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:25:20,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:25:20,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:25:20,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:25:20,372 INFO L87 Difference]: Start difference. First operand 21770 states and 25478 transitions. Second operand 5 states. [2020-11-07 06:25:25,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:25:25,341 INFO L93 Difference]: Finished difference Result 38895 states and 45502 transitions. [2020-11-07 06:25:25,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:25:25,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 688 [2020-11-07 06:25:25,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:25:25,408 INFO L225 Difference]: With dead ends: 38895 [2020-11-07 06:25:25,409 INFO L226 Difference]: Without dead ends: 19457 [2020-11-07 06:25:25,440 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:25:25,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19457 states. [2020-11-07 06:25:28,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19457 to 19425. [2020-11-07 06:25:28,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19425 states. [2020-11-07 06:25:28,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19425 states to 19425 states and 22630 transitions. [2020-11-07 06:25:28,446 INFO L78 Accepts]: Start accepts. Automaton has 19425 states and 22630 transitions. Word has length 688 [2020-11-07 06:25:28,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:25:28,446 INFO L481 AbstractCegarLoop]: Abstraction has 19425 states and 22630 transitions. [2020-11-07 06:25:28,446 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:25:28,446 INFO L276 IsEmpty]: Start isEmpty. Operand 19425 states and 22630 transitions. [2020-11-07 06:25:28,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-11-07 06:25:28,473 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:25:28,474 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:25:28,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-11-07 06:25:28,474 INFO L429 AbstractCegarLoop]: === Iteration 18 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:25:28,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:25:28,475 INFO L82 PathProgramCache]: Analyzing trace with hash -1542466900, now seen corresponding path program 1 times [2020-11-07 06:25:28,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:25:28,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2116659092] [2020-11-07 06:25:28,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:25:28,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:25:28,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,705 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:25:28,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:25:28,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2020-11-07 06:25:28,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 449 [2020-11-07 06:25:28,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:28,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 560 [2020-11-07 06:25:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:29,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1335 backedges. 341 proven. 321 refuted. 0 times theorem prover too weak. 673 trivial. 0 not checked. [2020-11-07 06:25:29,660 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2116659092] [2020-11-07 06:25:29,660 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:25:29,660 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:25:29,660 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503832849] [2020-11-07 06:25:29,661 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:25:29,661 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:25:29,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:25:29,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:25:29,662 INFO L87 Difference]: Start difference. First operand 19425 states and 22630 transitions. Second operand 7 states. [2020-11-07 06:25:40,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:25:40,052 INFO L93 Difference]: Finished difference Result 43010 states and 50558 transitions. [2020-11-07 06:25:40,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:25:40,053 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 709 [2020-11-07 06:25:40,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:25:40,119 INFO L225 Difference]: With dead ends: 43010 [2020-11-07 06:25:40,119 INFO L226 Difference]: Without dead ends: 24004 [2020-11-07 06:25:40,149 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:25:40,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24004 states. [2020-11-07 06:25:43,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24004 to 21929. [2020-11-07 06:25:43,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21929 states. [2020-11-07 06:25:43,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21929 states to 21929 states and 25749 transitions. [2020-11-07 06:25:43,588 INFO L78 Accepts]: Start accepts. Automaton has 21929 states and 25749 transitions. Word has length 709 [2020-11-07 06:25:43,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:25:43,588 INFO L481 AbstractCegarLoop]: Abstraction has 21929 states and 25749 transitions. [2020-11-07 06:25:43,588 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:25:43,588 INFO L276 IsEmpty]: Start isEmpty. Operand 21929 states and 25749 transitions. [2020-11-07 06:25:43,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2020-11-07 06:25:43,621 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:25:43,622 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:25:43,622 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-11-07 06:25:43,622 INFO L429 AbstractCegarLoop]: === Iteration 19 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:25:43,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:25:43,623 INFO L82 PathProgramCache]: Analyzing trace with hash -381775526, now seen corresponding path program 1 times [2020-11-07 06:25:43,623 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:25:43,623 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128212763] [2020-11-07 06:25:43,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:25:43,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:43,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:25:43,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:43,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:25:43,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:43,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:25:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:43,971 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2020-11-07 06:25:43,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:44,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 361 [2020-11-07 06:25:44,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:44,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 505 [2020-11-07 06:25:44,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:44,077 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 616 [2020-11-07 06:25:44,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:25:44,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1698 backedges. 344 proven. 306 refuted. 0 times theorem prover too weak. 1048 trivial. 0 not checked. [2020-11-07 06:25:44,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128212763] [2020-11-07 06:25:44,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:25:44,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:25:44,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318512955] [2020-11-07 06:25:44,438 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:25:44,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:25:44,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:25:44,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:25:44,439 INFO L87 Difference]: Start difference. First operand 21929 states and 25749 transitions. Second operand 7 states. [2020-11-07 06:25:54,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:25:54,943 INFO L93 Difference]: Finished difference Result 52283 states and 61795 transitions. [2020-11-07 06:25:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:25:54,944 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 765 [2020-11-07 06:25:54,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:25:55,041 INFO L225 Difference]: With dead ends: 52283 [2020-11-07 06:25:55,041 INFO L226 Difference]: Without dead ends: 30773 [2020-11-07 06:25:55,080 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 19 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 06:25:55,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30773 states. [2020-11-07 06:25:59,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30773 to 30285. [2020-11-07 06:25:59,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30285 states. [2020-11-07 06:25:59,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30285 states to 30285 states and 35290 transitions. [2020-11-07 06:25:59,962 INFO L78 Accepts]: Start accepts. Automaton has 30285 states and 35290 transitions. Word has length 765 [2020-11-07 06:25:59,963 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:25:59,963 INFO L481 AbstractCegarLoop]: Abstraction has 30285 states and 35290 transitions. [2020-11-07 06:25:59,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:25:59,963 INFO L276 IsEmpty]: Start isEmpty. Operand 30285 states and 35290 transitions. [2020-11-07 06:26:00,013 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 793 [2020-11-07 06:26:00,013 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:26:00,013 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 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] [2020-11-07 06:26:00,014 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-11-07 06:26:00,014 INFO L429 AbstractCegarLoop]: === Iteration 20 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:26:00,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:26:00,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1919735180, now seen corresponding path program 1 times [2020-11-07 06:26:00,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:26:00,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [127667812] [2020-11-07 06:26:00,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:26:00,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:26:00,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:26:00,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-11-07 06:26:00,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2020-11-07 06:26:00,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 388 [2020-11-07 06:26:00,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 532 [2020-11-07 06:26:00,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:00,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 643 [2020-11-07 06:26:00,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:01,165 INFO L134 CoverageAnalysis]: Checked inductivity of 1802 backedges. 467 proven. 251 refuted. 0 times theorem prover too weak. 1084 trivial. 0 not checked. [2020-11-07 06:26:01,166 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [127667812] [2020-11-07 06:26:01,166 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:26:01,166 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 06:26:01,166 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086740762] [2020-11-07 06:26:01,167 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 06:26:01,167 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:26:01,167 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 06:26:01,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 06:26:01,167 INFO L87 Difference]: Start difference. First operand 30285 states and 35290 transitions. Second operand 8 states. [2020-11-07 06:26:14,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:26:14,971 INFO L93 Difference]: Finished difference Result 67098 states and 78423 transitions. [2020-11-07 06:26:14,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 06:26:14,972 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 792 [2020-11-07 06:26:14,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:26:15,125 INFO L225 Difference]: With dead ends: 67098 [2020-11-07 06:26:15,125 INFO L226 Difference]: Without dead ends: 37253 [2020-11-07 06:26:15,166 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 06:26:15,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37253 states. [2020-11-07 06:26:20,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37253 to 35617. [2020-11-07 06:26:20,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35617 states. [2020-11-07 06:26:20,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35617 states to 35617 states and 40744 transitions. [2020-11-07 06:26:20,848 INFO L78 Accepts]: Start accepts. Automaton has 35617 states and 40744 transitions. Word has length 792 [2020-11-07 06:26:20,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:26:20,848 INFO L481 AbstractCegarLoop]: Abstraction has 35617 states and 40744 transitions. [2020-11-07 06:26:20,848 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 06:26:20,848 INFO L276 IsEmpty]: Start isEmpty. Operand 35617 states and 40744 transitions. [2020-11-07 06:26:20,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 801 [2020-11-07 06:26:20,894 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:26:20,894 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:26:20,894 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-11-07 06:26:20,894 INFO L429 AbstractCegarLoop]: === Iteration 21 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:26:20,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:26:20,895 INFO L82 PathProgramCache]: Analyzing trace with hash 439138316, now seen corresponding path program 1 times [2020-11-07 06:26:20,895 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:26:20,895 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2099878171] [2020-11-07 06:26:20,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:26:21,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,179 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:26:21,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-11-07 06:26:21,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,236 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 166 [2020-11-07 06:26:21,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,257 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 263 [2020-11-07 06:26:21,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 396 [2020-11-07 06:26:21,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 540 [2020-11-07 06:26:21,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 651 [2020-11-07 06:26:21,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:26:21,769 INFO L134 CoverageAnalysis]: Checked inductivity of 1829 backedges. 241 proven. 6 refuted. 0 times theorem prover too weak. 1582 trivial. 0 not checked. [2020-11-07 06:26:21,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2099878171] [2020-11-07 06:26:21,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:26:21,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-11-07 06:26:21,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [987928589] [2020-11-07 06:26:21,771 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 06:26:21,771 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:26:21,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 06:26:21,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:26:21,772 INFO L87 Difference]: Start difference. First operand 35617 states and 40744 transitions. Second operand 6 states. [2020-11-07 06:26:34,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:26:34,756 INFO L93 Difference]: Finished difference Result 80527 states and 92322 transitions. [2020-11-07 06:26:34,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-11-07 06:26:34,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 800 [2020-11-07 06:26:34,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:26:34,813 INFO L225 Difference]: With dead ends: 80527 [2020-11-07 06:26:34,813 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:26:35,201 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-11-07 06:26:35,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:26:35,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:26:35,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:26:35,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:26:35,202 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 800 [2020-11-07 06:26:35,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:26:35,202 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:26:35,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 06:26:35,202 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:26:35,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:26:35,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-11-07 06:26:35,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:26:37,952 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 125 [2020-11-07 06:26:38,111 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2020-11-07 06:26:38,393 WARN L194 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:26:38,665 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:26:39,010 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:26:41,212 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:26:41,360 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:26:41,539 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:00,582 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:00,706 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:00,892 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:05,243 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:05,368 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:05,534 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:07,718 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:07,843 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:08,008 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:11,122 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:27:16,063 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:16,185 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:16,352 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:17,917 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:18,041 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:18,205 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:26,150 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:26,279 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:26,446 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:29,882 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:30,003 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:30,198 WARN L194 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:33,645 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:33,768 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:33,933 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:37,227 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:37,349 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:37,514 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:39,631 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:39,756 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:39,925 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:45,947 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:46,071 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:46,237 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:47,820 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:47,943 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:48,108 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:49,660 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:27:49,781 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:27:49,951 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:27:52,474 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:27:55,652 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:27:59,089 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:27:59,986 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:00,116 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:00,280 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:01,839 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:01,962 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:02,127 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:06,289 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:06,412 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:06,576 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:20,676 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:20,797 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:20,962 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:22,539 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:22,662 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:22,827 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:24,373 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:24,497 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:24,659 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:25,986 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:26,184 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:26,325 WARN L194 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:26,428 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:26,544 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:26,648 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:26,755 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:26,858 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:26,963 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:27,078 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:27,272 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:27,393 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:27,497 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:27,603 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:27,710 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:27,815 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:28,019 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:28,227 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:28,336 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:28,447 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:28,641 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:28,881 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:29,147 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:29,250 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:29,721 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:29,829 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,002 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,141 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,247 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,444 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,552 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:30,837 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:31,194 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:31,503 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:31,606 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:31,782 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:31,900 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:32,241 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:32,582 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:32,876 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:33,320 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:33,424 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:33,850 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 84 [2020-11-07 06:28:34,021 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:34,222 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:34,416 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:35,062 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:35,231 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:35,659 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:36,032 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:36,323 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:36,430 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:36,533 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:36,798 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:36,901 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:37,182 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:37,289 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:37,603 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:37,707 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:37,812 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:37,916 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:38,091 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 76 [2020-11-07 06:28:38,658 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 78 [2020-11-07 06:28:45,089 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:45,212 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:45,377 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:47,458 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:47,582 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:47,747 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:52,314 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:52,434 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:52,597 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:54,132 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:54,254 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:54,420 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:28:57,914 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:28:58,035 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:28:58,200 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:02,031 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:02,154 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:02,319 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:09,711 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:29:14,865 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:14,989 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:15,159 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:16,703 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:16,826 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:16,994 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:22,057 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:22,181 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:22,344 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:23,898 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:24,023 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:24,193 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:26,430 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:26,551 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:26,719 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:28,274 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:28,398 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:28,564 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:42,811 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:42,994 WARN L194 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:43,161 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:48,543 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:48,667 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:48,832 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:53,549 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:53,673 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:53,837 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:29:57,864 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:29:57,991 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:29:58,156 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:01,642 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:01,763 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:01,929 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:35,580 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:35,704 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:35,868 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:38,012 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:38,133 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:38,301 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:41,790 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:41,913 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:42,084 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:44,794 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:44,919 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:45,082 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:46,653 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:46,774 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:46,941 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:49,073 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:49,207 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:49,374 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:30:59,621 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:30:59,746 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:30:59,913 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:01,471 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:01,597 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:01,785 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:06,390 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:06,514 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:06,681 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:09,188 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:31:11,048 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:31:13,450 WARN L194 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:31:15,321 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:31:17,265 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:17,388 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:17,553 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:51,761 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:51,885 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:52,049 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:54,835 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:54,957 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:55,125 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:31:56,710 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:31:56,832 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:31:56,998 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:02,401 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:02,523 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:02,689 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:05,413 WARN L194 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:05,538 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:05,706 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:07,295 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:07,419 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:07,587 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:10,227 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:10,351 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:10,517 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:13,757 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:13,880 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:14,045 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:18,503 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:18,624 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:18,793 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:30,719 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:30,855 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:31,019 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:33,130 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:33,253 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:33,419 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:35,006 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:35,128 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:35,297 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:37,502 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:37,624 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:37,792 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:39,368 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:39,492 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:39,660 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:41,264 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:41,385 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:41,554 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:32:44,764 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2020-11-07 06:32:45,251 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 157 [2020-11-07 06:32:45,493 WARN L194 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 186 DAG size of output: 149 [2020-11-07 06:32:46,187 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 157 [2020-11-07 06:32:50,330 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 166 DAG size of output: 150 [2020-11-07 06:32:55,366 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:32:55,488 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:32:55,653 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:08,459 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:08,581 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:08,746 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:12,225 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:12,345 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:12,517 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:15,980 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:16,103 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:16,269 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:23,236 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 749 DAG size of output: 438 [2020-11-07 06:33:24,707 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 118 [2020-11-07 06:33:29,103 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:29,224 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:29,389 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:34,822 WARN L194 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:34,946 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:35,110 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:39,405 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:39,542 WARN L194 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:39,707 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:41,265 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:41,388 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:41,553 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:46,985 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:47,107 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:47,286 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:50,777 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:50,897 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:51,060 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:33:57,547 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:33:57,667 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:33:57,839 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:01,939 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:02,060 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:02,226 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:05,706 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:05,828 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:05,992 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:08,796 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:08,919 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:09,131 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:10,676 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:10,799 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:10,966 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:17,252 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:17,372 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:17,537 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:27,811 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:27,934 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:28,101 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:34,755 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:34,876 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:35,042 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:42,217 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:42,340 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:42,506 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:46,297 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:46,419 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:46,585 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:48,193 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:48,312 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:48,477 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:50,033 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:50,155 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:50,318 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:34:56,623 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:34:56,743 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:34:56,909 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:05,555 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:05,679 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:05,845 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:07,456 WARN L194 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:07,576 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:07,741 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:11,040 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:11,160 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:11,327 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:15,684 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:15,809 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:15,973 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:18,074 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:18,194 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:18,356 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:22,784 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:22,905 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:23,069 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:25,825 WARN L194 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:25,944 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:26,112 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:28,864 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:28,983 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:29,147 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:30,692 WARN L194 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:30,814 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:30,977 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:37,039 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:37,158 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:37,323 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:40,808 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:40,941 WARN L194 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:41,104 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:45,154 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:45,276 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:45,440 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:47,580 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:47,700 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:47,864 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:49,389 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:49,517 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:49,682 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:55,108 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:55,230 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:55,393 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:35:56,921 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:35:57,040 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:35:57,202 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:36:01,216 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:36:01,334 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:36:01,500 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:36:11,547 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:36:11,676 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:36:11,839 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133 [2020-11-07 06:36:16,171 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 135 [2020-11-07 06:36:16,293 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 149 DAG size of output: 136 [2020-11-07 06:36:16,457 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 146 DAG size of output: 133