/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 05:22:15,434 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 05:22:15,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 05:22:15,491 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 05:22:15,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 05:22:15,523 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 05:22:15,525 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 05:22:15,526 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 05:22:15,527 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 05:22:15,531 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 05:22:15,538 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 05:22:15,546 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 05:22:15,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 05:22:15,549 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 05:22:15,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 05:22:15,554 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 05:22:15,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 05:22:15,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 05:22:15,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 05:22:15,584 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 05:22:15,585 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 05:22:15,609 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 05:22:15,609 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 05:22:15,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 05:22:15,614 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 05:22:15,614 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 05:22:15,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 05:22:15,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 05:22:15,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 05:22:15,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 05:22:15,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 05:22:15,616 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 05:22:15,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 05:22:15,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 05:22:15,617 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 05:22:15,617 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 05:22:15,617 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 05:22:15,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 05:22:15,618 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 05:22:15,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:22:15,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 05:22:15,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 05:22:15,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 05:22:15,619 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 05:22:16,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 05:22:16,071 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 05:22:16,074 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 05:22:16,075 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 05:22:16,076 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 05:22:16,077 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-11-07 05:22:16,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b59098b4/ee1f1f18e47543e9a1d2588f03941e8c/FLAG34c7b2d0b [2020-11-07 05:22:16,916 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 05:22:16,917 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem01_label17.c [2020-11-07 05:22:16,945 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b59098b4/ee1f1f18e47543e9a1d2588f03941e8c/FLAG34c7b2d0b [2020-11-07 05:22:17,151 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9b59098b4/ee1f1f18e47543e9a1d2588f03941e8c [2020-11-07 05:22:17,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 05:22:17,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 05:22:17,166 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 05:22:17,166 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 05:22:17,170 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 05:22:17,171 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:17,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78424f8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17, skipping insertion in model container [2020-11-07 05:22:17,175 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:17,184 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 05:22:17,250 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 05:22:17,675 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:22:17,702 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 05:22:17,911 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 05:22:17,929 INFO L208 MainTranslator]: Completed translation [2020-11-07 05:22:17,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17 WrapperNode [2020-11-07 05:22:17,930 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 05:22:17,932 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 05:22:17,932 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 05:22:17,932 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 05:22:17,946 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:17,947 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:17,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:17,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:18,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:18,030 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:18,035 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... [2020-11-07 05:22:18,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 05:22:18,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 05:22:18,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 05:22:18,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 05:22:18,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 05:22:18,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 05:22:18,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 05:22:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 05:22:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 05:22:18,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 05:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 05:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 05:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 05:22:18,134 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 05:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 05:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 05:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 05:22:18,135 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 05:22:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 05:22:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 05:22:18,136 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 05:22:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 05:22:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 05:22:18,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 05:22:19,547 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 05:22:19,547 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 05:22:19,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:22:19 BoogieIcfgContainer [2020-11-07 05:22:19,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 05:22:19,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 05:22:19,553 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 05:22:19,556 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 05:22:19,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 05:22:17" (1/3) ... [2020-11-07 05:22:19,558 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778626ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:22:19, skipping insertion in model container [2020-11-07 05:22:19,558 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 05:22:17" (2/3) ... [2020-11-07 05:22:19,559 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@778626ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 05:22:19, skipping insertion in model container [2020-11-07 05:22:19,559 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 05:22:19" (3/3) ... [2020-11-07 05:22:19,561 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem01_label17.c [2020-11-07 05:22:19,579 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 05:22:19,583 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 05:22:19,597 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 05:22:19,630 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 05:22:19,631 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 05:22:19,631 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 05:22:19,631 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 05:22:19,631 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 05:22:19,631 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 05:22:19,632 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 05:22:19,632 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 05:22:19,661 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states. [2020-11-07 05:22:19,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-11-07 05:22:19,690 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:19,691 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:19,692 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:19,699 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:19,699 INFO L82 PathProgramCache]: Analyzing trace with hash -9589882, now seen corresponding path program 1 times [2020-11-07 05:22:19,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:19,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [156595031] [2020-11-07 05:22:19,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:20,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:20,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:22:20,471 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [156595031] [2020-11-07 05:22:20,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 05:22:20,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 05:22:20,474 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419390427] [2020-11-07 05:22:20,479 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 05:22:20,480 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:20,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 05:22:20,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 05:22:20,497 INFO L87 Difference]: Start difference. First operand 537 states. Second operand 4 states. [2020-11-07 05:22:23,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:23,366 INFO L93 Difference]: Finished difference Result 1353 states and 1752 transitions. [2020-11-07 05:22:23,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 05:22:23,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-11-07 05:22:23,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:23,410 INFO L225 Difference]: With dead ends: 1353 [2020-11-07 05:22:23,410 INFO L226 Difference]: Without dead ends: 750 [2020-11-07 05:22:23,423 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:22:23,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 750 states. [2020-11-07 05:22:23,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 750 to 673. [2020-11-07 05:22:23,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 673 states. [2020-11-07 05:22:23,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 673 states to 673 states and 789 transitions. [2020-11-07 05:22:23,626 INFO L78 Accepts]: Start accepts. Automaton has 673 states and 789 transitions. Word has length 153 [2020-11-07 05:22:23,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:23,627 INFO L481 AbstractCegarLoop]: Abstraction has 673 states and 789 transitions. [2020-11-07 05:22:23,627 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 05:22:23,628 INFO L276 IsEmpty]: Start isEmpty. Operand 673 states and 789 transitions. [2020-11-07 05:22:23,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-11-07 05:22:23,635 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:23,635 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:23,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 05:22:23,648 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:23,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:23,649 INFO L82 PathProgramCache]: Analyzing trace with hash -173327740, now seen corresponding path program 1 times [2020-11-07 05:22:23,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:23,650 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1823278969] [2020-11-07 05:22:23,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:23,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:24,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:24,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:24,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:24,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:24,447 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 05:22:24,447 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1823278969] [2020-11-07 05:22:24,447 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:24,448 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-11-07 05:22:24,448 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099111533] [2020-11-07 05:22:24,449 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 05:22:24,450 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:24,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 05:22:24,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:22:24,451 INFO L87 Difference]: Start difference. First operand 673 states and 789 transitions. Second operand 11 states. [2020-11-07 05:22:24,691 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:22:25,164 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 99 [2020-11-07 05:22:25,347 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:22:30,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:30,117 INFO L93 Difference]: Finished difference Result 2531 states and 3317 transitions. [2020-11-07 05:22:30,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:22:30,120 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 174 [2020-11-07 05:22:30,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:30,136 INFO L225 Difference]: With dead ends: 2531 [2020-11-07 05:22:30,136 INFO L226 Difference]: Without dead ends: 1480 [2020-11-07 05:22:30,144 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=102, Invalid=170, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:22:30,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1480 states. [2020-11-07 05:22:30,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1480 to 1248. [2020-11-07 05:22:30,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1248 states. [2020-11-07 05:22:30,437 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1248 states to 1248 states and 1476 transitions. [2020-11-07 05:22:30,437 INFO L78 Accepts]: Start accepts. Automaton has 1248 states and 1476 transitions. Word has length 174 [2020-11-07 05:22:30,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:30,438 INFO L481 AbstractCegarLoop]: Abstraction has 1248 states and 1476 transitions. [2020-11-07 05:22:30,438 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 05:22:30,438 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states and 1476 transitions. [2020-11-07 05:22:30,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-11-07 05:22:30,444 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:30,445 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:30,445 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 05:22:30,445 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:30,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:30,446 INFO L82 PathProgramCache]: Analyzing trace with hash -1252706518, now seen corresponding path program 1 times [2020-11-07 05:22:30,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:30,447 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1929277483] [2020-11-07 05:22:30,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:30,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:30,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:30,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:30,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:30,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:30,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:30,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:30,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-11-07 05:22:30,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:30,752 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 50 proven. 9 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2020-11-07 05:22:30,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1929277483] [2020-11-07 05:22:30,756 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:30,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:22:30,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149682766] [2020-11-07 05:22:30,764 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:22:30,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:30,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:22:30,767 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:22:30,767 INFO L87 Difference]: Start difference. First operand 1248 states and 1476 transitions. Second operand 7 states. [2020-11-07 05:22:33,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:33,983 INFO L93 Difference]: Finished difference Result 3418 states and 4187 transitions. [2020-11-07 05:22:33,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:22:33,984 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-11-07 05:22:33,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:34,010 INFO L225 Difference]: With dead ends: 3418 [2020-11-07 05:22:34,012 INFO L226 Difference]: Without dead ends: 2202 [2020-11-07 05:22:34,019 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-11-07 05:22:34,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2202 states. [2020-11-07 05:22:34,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2202 to 2136. [2020-11-07 05:22:34,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2136 states. [2020-11-07 05:22:34,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2136 states to 2136 states and 2543 transitions. [2020-11-07 05:22:34,515 INFO L78 Accepts]: Start accepts. Automaton has 2136 states and 2543 transitions. Word has length 208 [2020-11-07 05:22:34,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:34,516 INFO L481 AbstractCegarLoop]: Abstraction has 2136 states and 2543 transitions. [2020-11-07 05:22:34,516 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:22:34,516 INFO L276 IsEmpty]: Start isEmpty. Operand 2136 states and 2543 transitions. [2020-11-07 05:22:34,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 226 [2020-11-07 05:22:34,527 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:34,527 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:34,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 05:22:34,528 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:34,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:34,529 INFO L82 PathProgramCache]: Analyzing trace with hash -2028575115, now seen corresponding path program 1 times [2020-11-07 05:22:34,529 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:34,529 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2047988312] [2020-11-07 05:22:34,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:34,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:34,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:34,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:34,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:34,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:34,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:34,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-11-07 05:22:34,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:34,898 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 79 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:22:34,899 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2047988312] [2020-11-07 05:22:34,899 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:34,899 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:22:34,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436206857] [2020-11-07 05:22:34,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:22:34,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:34,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:22:34,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:22:34,902 INFO L87 Difference]: Start difference. First operand 2136 states and 2543 transitions. Second operand 7 states. [2020-11-07 05:22:38,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:38,612 INFO L93 Difference]: Finished difference Result 4974 states and 6090 transitions. [2020-11-07 05:22:38,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:22:38,612 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 225 [2020-11-07 05:22:38,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:38,640 INFO L225 Difference]: With dead ends: 4974 [2020-11-07 05:22:38,641 INFO L226 Difference]: Without dead ends: 3011 [2020-11-07 05:22:38,650 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:22:38,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3011 states. [2020-11-07 05:22:39,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3011 to 2936. [2020-11-07 05:22:39,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2936 states. [2020-11-07 05:22:39,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 3541 transitions. [2020-11-07 05:22:39,266 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 3541 transitions. Word has length 225 [2020-11-07 05:22:39,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:39,267 INFO L481 AbstractCegarLoop]: Abstraction has 2936 states and 3541 transitions. [2020-11-07 05:22:39,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:22:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 3541 transitions. [2020-11-07 05:22:39,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-07 05:22:39,282 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:39,282 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:39,283 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 05:22:39,283 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:39,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:39,284 INFO L82 PathProgramCache]: Analyzing trace with hash 1748014486, now seen corresponding path program 1 times [2020-11-07 05:22:39,284 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:39,284 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1907247479] [2020-11-07 05:22:39,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:39,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:39,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:39,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:39,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:39,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:39,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-11-07 05:22:39,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:39,623 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 78 proven. 4 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2020-11-07 05:22:39,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1907247479] [2020-11-07 05:22:39,624 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:39,624 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:22:39,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767760468] [2020-11-07 05:22:39,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:22:39,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:39,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:22:39,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:22:39,626 INFO L87 Difference]: Start difference. First operand 2936 states and 3541 transitions. Second operand 7 states. [2020-11-07 05:22:42,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:42,942 INFO L93 Difference]: Finished difference Result 6468 states and 8187 transitions. [2020-11-07 05:22:42,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:22:42,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-11-07 05:22:42,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:42,976 INFO L225 Difference]: With dead ends: 6468 [2020-11-07 05:22:42,977 INFO L226 Difference]: Without dead ends: 3705 [2020-11-07 05:22:42,991 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:22:42,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3705 states. [2020-11-07 05:22:43,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3705 to 3565. [2020-11-07 05:22:43,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3565 states. [2020-11-07 05:22:43,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4275 transitions. [2020-11-07 05:22:43,795 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4275 transitions. Word has length 239 [2020-11-07 05:22:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:43,796 INFO L481 AbstractCegarLoop]: Abstraction has 3565 states and 4275 transitions. [2020-11-07 05:22:43,796 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:22:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4275 transitions. [2020-11-07 05:22:43,809 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2020-11-07 05:22:43,810 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:43,810 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:43,811 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 05:22:43,811 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:43,811 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:43,811 INFO L82 PathProgramCache]: Analyzing trace with hash -488065714, now seen corresponding path program 1 times [2020-11-07 05:22:43,812 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:43,812 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1828966586] [2020-11-07 05:22:43,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:43,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:43,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:43,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:43,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:43,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:43,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:43,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:44,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 05:22:44,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:44,082 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 93 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:22:44,082 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1828966586] [2020-11-07 05:22:44,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:44,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:22:44,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425110974] [2020-11-07 05:22:44,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:22:44,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:44,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:22:44,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:22:44,086 INFO L87 Difference]: Start difference. First operand 3565 states and 4275 transitions. Second operand 7 states. [2020-11-07 05:22:47,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:47,616 INFO L93 Difference]: Finished difference Result 7130 states and 8548 transitions. [2020-11-07 05:22:47,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:22:47,620 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 239 [2020-11-07 05:22:47,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:47,644 INFO L225 Difference]: With dead ends: 7130 [2020-11-07 05:22:47,644 INFO L226 Difference]: Without dead ends: 3581 [2020-11-07 05:22:47,657 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:22:47,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3581 states. [2020-11-07 05:22:48,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3581 to 3526. [2020-11-07 05:22:48,543 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3526 states. [2020-11-07 05:22:48,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3526 states to 3526 states and 4009 transitions. [2020-11-07 05:22:48,557 INFO L78 Accepts]: Start accepts. Automaton has 3526 states and 4009 transitions. Word has length 239 [2020-11-07 05:22:48,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:48,557 INFO L481 AbstractCegarLoop]: Abstraction has 3526 states and 4009 transitions. [2020-11-07 05:22:48,557 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:22:48,558 INFO L276 IsEmpty]: Start isEmpty. Operand 3526 states and 4009 transitions. [2020-11-07 05:22:48,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 243 [2020-11-07 05:22:48,572 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:48,573 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:48,573 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 05:22:48,573 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:48,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:48,574 INFO L82 PathProgramCache]: Analyzing trace with hash 956643824, now seen corresponding path program 1 times [2020-11-07 05:22:48,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:48,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [66777346] [2020-11-07 05:22:48,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:48,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:48,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:48,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:48,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:48,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:48,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:48,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:48,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2020-11-07 05:22:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:48,855 INFO L134 CoverageAnalysis]: Checked inductivity of 109 backedges. 96 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-11-07 05:22:48,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [66777346] [2020-11-07 05:22:48,856 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:48,856 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:22:48,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1954987776] [2020-11-07 05:22:48,857 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:22:48,857 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:48,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:22:48,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:22:48,858 INFO L87 Difference]: Start difference. First operand 3526 states and 4009 transitions. Second operand 7 states. [2020-11-07 05:22:51,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:22:51,753 INFO L93 Difference]: Finished difference Result 8393 states and 9804 transitions. [2020-11-07 05:22:51,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 05:22:51,754 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 242 [2020-11-07 05:22:51,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:22:51,785 INFO L225 Difference]: With dead ends: 8393 [2020-11-07 05:22:51,785 INFO L226 Difference]: Without dead ends: 5040 [2020-11-07 05:22:51,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:22:51,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5040 states. [2020-11-07 05:22:52,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5040 to 4868. [2020-11-07 05:22:52,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4868 states. [2020-11-07 05:22:52,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4868 states to 4868 states and 5527 transitions. [2020-11-07 05:22:52,898 INFO L78 Accepts]: Start accepts. Automaton has 4868 states and 5527 transitions. Word has length 242 [2020-11-07 05:22:52,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:22:52,899 INFO L481 AbstractCegarLoop]: Abstraction has 4868 states and 5527 transitions. [2020-11-07 05:22:52,899 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:22:52,899 INFO L276 IsEmpty]: Start isEmpty. Operand 4868 states and 5527 transitions. [2020-11-07 05:22:52,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-11-07 05:22:52,917 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:22:52,918 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:22:52,918 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 05:22:52,918 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:22:52,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:22:52,919 INFO L82 PathProgramCache]: Analyzing trace with hash 585262443, now seen corresponding path program 1 times [2020-11-07 05:22:52,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:22:52,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1868477187] [2020-11-07 05:22:52,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:22:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:22:53,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:22:53,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,148 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:22:53,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-11-07 05:22:53,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2020-11-07 05:22:53,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:22:53,310 INFO L134 CoverageAnalysis]: Checked inductivity of 180 backedges. 120 proven. 28 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2020-11-07 05:22:53,311 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1868477187] [2020-11-07 05:22:53,311 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:22:53,311 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:22:53,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566617898] [2020-11-07 05:22:53,312 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:22:53,313 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:22:53,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:22:53,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:22:53,313 INFO L87 Difference]: Start difference. First operand 4868 states and 5527 transitions. Second operand 10 states. [2020-11-07 05:22:53,542 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:22:53,812 WARN L194 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 93 [2020-11-07 05:22:54,375 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:22:54,803 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:22:55,374 WARN L194 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 91 [2020-11-07 05:22:56,243 WARN L194 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:22:57,118 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:23:01,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:01,015 INFO L93 Difference]: Finished difference Result 10306 states and 11718 transitions. [2020-11-07 05:23:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-11-07 05:23:01,016 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 264 [2020-11-07 05:23:01,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:01,048 INFO L225 Difference]: With dead ends: 10306 [2020-11-07 05:23:01,048 INFO L226 Difference]: Without dead ends: 5611 [2020-11-07 05:23:01,066 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 406 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=312, Invalid=1170, Unknown=0, NotChecked=0, Total=1482 [2020-11-07 05:23:01,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5611 states. [2020-11-07 05:23:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5611 to 5409. [2020-11-07 05:23:02,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5409 states. [2020-11-07 05:23:02,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5409 states to 5409 states and 6053 transitions. [2020-11-07 05:23:02,062 INFO L78 Accepts]: Start accepts. Automaton has 5409 states and 6053 transitions. Word has length 264 [2020-11-07 05:23:02,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:02,062 INFO L481 AbstractCegarLoop]: Abstraction has 5409 states and 6053 transitions. [2020-11-07 05:23:02,062 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:23:02,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5409 states and 6053 transitions. [2020-11-07 05:23:02,080 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2020-11-07 05:23:02,080 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:02,081 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:02,081 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 05:23:02,081 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:02,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:02,082 INFO L82 PathProgramCache]: Analyzing trace with hash 1127797457, now seen corresponding path program 1 times [2020-11-07 05:23:02,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:02,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1400047178] [2020-11-07 05:23:02,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:02,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,237 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,277 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:02,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,282 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:23:02,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-11-07 05:23:02,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-11-07 05:23:02,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:02,408 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 127 proven. 18 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2020-11-07 05:23:02,409 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1400047178] [2020-11-07 05:23:02,409 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:02,409 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:23:02,410 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126932501] [2020-11-07 05:23:02,410 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:23:02,410 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:02,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:23:02,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:23:02,411 INFO L87 Difference]: Start difference. First operand 5409 states and 6053 transitions. Second operand 8 states. [2020-11-07 05:23:02,803 WARN L194 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:23:04,364 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:23:07,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:07,205 INFO L93 Difference]: Finished difference Result 12612 states and 14226 transitions. [2020-11-07 05:23:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:23:07,206 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 267 [2020-11-07 05:23:07,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:07,241 INFO L225 Difference]: With dead ends: 12612 [2020-11-07 05:23:07,241 INFO L226 Difference]: Without dead ends: 6480 [2020-11-07 05:23:07,260 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-11-07 05:23:07,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6480 states. [2020-11-07 05:23:08,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6480 to 4922. [2020-11-07 05:23:08,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4922 states. [2020-11-07 05:23:08,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4922 states to 4922 states and 5354 transitions. [2020-11-07 05:23:08,339 INFO L78 Accepts]: Start accepts. Automaton has 4922 states and 5354 transitions. Word has length 267 [2020-11-07 05:23:08,339 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:08,339 INFO L481 AbstractCegarLoop]: Abstraction has 4922 states and 5354 transitions. [2020-11-07 05:23:08,339 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:23:08,339 INFO L276 IsEmpty]: Start isEmpty. Operand 4922 states and 5354 transitions. [2020-11-07 05:23:08,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2020-11-07 05:23:08,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:08,355 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:08,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 05:23:08,355 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:08,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:08,356 INFO L82 PathProgramCache]: Analyzing trace with hash -157973390, now seen corresponding path program 1 times [2020-11-07 05:23:08,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:08,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1236998823] [2020-11-07 05:23:08,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:08,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:08,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,554 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:08,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2020-11-07 05:23:08,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,613 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-11-07 05:23:08,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 05:23:08,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 116 proven. 36 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2020-11-07 05:23:08,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1236998823] [2020-11-07 05:23:08,719 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:08,719 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:23:08,719 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624572344] [2020-11-07 05:23:08,720 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:23:08,720 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:08,720 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:23:08,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:23:08,721 INFO L87 Difference]: Start difference. First operand 4922 states and 5354 transitions. Second operand 8 states. [2020-11-07 05:23:10,558 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:23:13,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:13,296 INFO L93 Difference]: Finished difference Result 10112 states and 11015 transitions. [2020-11-07 05:23:13,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-11-07 05:23:13,297 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 278 [2020-11-07 05:23:13,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:13,322 INFO L225 Difference]: With dead ends: 10112 [2020-11-07 05:23:13,322 INFO L226 Difference]: Without dead ends: 5363 [2020-11-07 05:23:13,334 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:23:13,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5363 states. [2020-11-07 05:23:14,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5363 to 5250. [2020-11-07 05:23:14,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5250 states. [2020-11-07 05:23:14,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5250 states to 5250 states and 5693 transitions. [2020-11-07 05:23:14,452 INFO L78 Accepts]: Start accepts. Automaton has 5250 states and 5693 transitions. Word has length 278 [2020-11-07 05:23:14,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:14,452 INFO L481 AbstractCegarLoop]: Abstraction has 5250 states and 5693 transitions. [2020-11-07 05:23:14,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:23:14,453 INFO L276 IsEmpty]: Start isEmpty. Operand 5250 states and 5693 transitions. [2020-11-07 05:23:14,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 333 [2020-11-07 05:23:14,466 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:14,466 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:14,467 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 05:23:14,467 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:14,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:14,467 INFO L82 PathProgramCache]: Analyzing trace with hash 1987273960, now seen corresponding path program 1 times [2020-11-07 05:23:14,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:14,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [227436643] [2020-11-07 05:23:14,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:14,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:14,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,696 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 05:23:14,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-11-07 05:23:14,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,773 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2020-11-07 05:23:14,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:14,886 INFO L134 CoverageAnalysis]: Checked inductivity of 330 backedges. 198 proven. 28 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-11-07 05:23:14,886 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [227436643] [2020-11-07 05:23:14,886 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:14,886 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 05:23:14,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208061236] [2020-11-07 05:23:14,887 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 05:23:14,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:14,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 05:23:14,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-11-07 05:23:14,889 INFO L87 Difference]: Start difference. First operand 5250 states and 5693 transitions. Second operand 10 states. [2020-11-07 05:23:15,235 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:23:16,420 WARN L194 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 94 [2020-11-07 05:23:16,657 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:23:17,343 WARN L194 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:23:18,243 WARN L194 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 93 [2020-11-07 05:23:18,933 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:23:20,073 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:23:21,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:21,596 INFO L93 Difference]: Finished difference Result 10831 states and 11763 transitions. [2020-11-07 05:23:21,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2020-11-07 05:23:21,601 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 332 [2020-11-07 05:23:21,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:21,627 INFO L225 Difference]: With dead ends: 10831 [2020-11-07 05:23:21,627 INFO L226 Difference]: Without dead ends: 5754 [2020-11-07 05:23:21,640 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 352 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=279, Invalid=1053, Unknown=0, NotChecked=0, Total=1332 [2020-11-07 05:23:21,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5754 states. [2020-11-07 05:23:22,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5754 to 5699. [2020-11-07 05:23:22,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5699 states. [2020-11-07 05:23:22,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5699 states to 5699 states and 6124 transitions. [2020-11-07 05:23:22,865 INFO L78 Accepts]: Start accepts. Automaton has 5699 states and 6124 transitions. Word has length 332 [2020-11-07 05:23:22,866 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:22,866 INFO L481 AbstractCegarLoop]: Abstraction has 5699 states and 6124 transitions. [2020-11-07 05:23:22,866 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 05:23:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand 5699 states and 6124 transitions. [2020-11-07 05:23:22,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 373 [2020-11-07 05:23:22,881 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:22,881 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:22,881 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 05:23:22,882 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:22,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:22,882 INFO L82 PathProgramCache]: Analyzing trace with hash -544337322, now seen corresponding path program 1 times [2020-11-07 05:23:22,883 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:22,883 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [252284424] [2020-11-07 05:23:22,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:22,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:23,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,135 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:23:23,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:23:23,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,193 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2020-11-07 05:23:23,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:23,465 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 243 proven. 18 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2020-11-07 05:23:23,465 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [252284424] [2020-11-07 05:23:23,465 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:23,465 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-11-07 05:23:23,466 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1426682657] [2020-11-07 05:23:23,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 05:23:23,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:23,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 05:23:23,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 05:23:23,467 INFO L87 Difference]: Start difference. First operand 5699 states and 6124 transitions. Second operand 8 states. [2020-11-07 05:23:23,665 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:23:23,833 WARN L194 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-11-07 05:23:25,046 WARN L194 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 92 [2020-11-07 05:23:26,092 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2020-11-07 05:23:27,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:27,701 INFO L93 Difference]: Finished difference Result 11436 states and 12292 transitions. [2020-11-07 05:23:27,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-11-07 05:23:27,702 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 372 [2020-11-07 05:23:27,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:27,736 INFO L225 Difference]: With dead ends: 11436 [2020-11-07 05:23:27,736 INFO L226 Difference]: Without dead ends: 5910 [2020-11-07 05:23:27,749 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 05:23:27,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5910 states. [2020-11-07 05:23:28,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5910 to 5850. [2020-11-07 05:23:28,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5850 states. [2020-11-07 05:23:28,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5850 states to 5850 states and 6266 transitions. [2020-11-07 05:23:28,872 INFO L78 Accepts]: Start accepts. Automaton has 5850 states and 6266 transitions. Word has length 372 [2020-11-07 05:23:28,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:28,873 INFO L481 AbstractCegarLoop]: Abstraction has 5850 states and 6266 transitions. [2020-11-07 05:23:28,873 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 05:23:28,873 INFO L276 IsEmpty]: Start isEmpty. Operand 5850 states and 6266 transitions. [2020-11-07 05:23:28,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2020-11-07 05:23:28,886 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:28,887 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:28,887 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 05:23:28,887 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:28,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:28,888 INFO L82 PathProgramCache]: Analyzing trace with hash 1320190865, now seen corresponding path program 1 times [2020-11-07 05:23:28,888 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:28,888 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930460150] [2020-11-07 05:23:28,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:28,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,093 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:29,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,118 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:29,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:23:29,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:23:29,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:23:29,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:23:29,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:29,299 INFO L134 CoverageAnalysis]: Checked inductivity of 502 backedges. 242 proven. 5 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2020-11-07 05:23:29,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930460150] [2020-11-07 05:23:29,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:29,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 05:23:29,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827705964] [2020-11-07 05:23:29,301 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 05:23:29,301 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:29,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 05:23:29,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 05:23:29,302 INFO L87 Difference]: Start difference. First operand 5850 states and 6266 transitions. Second operand 5 states. [2020-11-07 05:23:30,419 WARN L194 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-11-07 05:23:32,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:32,089 INFO L93 Difference]: Finished difference Result 11835 states and 12690 transitions. [2020-11-07 05:23:32,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 05:23:32,093 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 393 [2020-11-07 05:23:32,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:32,118 INFO L225 Difference]: With dead ends: 11835 [2020-11-07 05:23:32,118 INFO L226 Difference]: Without dead ends: 5503 [2020-11-07 05:23:32,129 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 05:23:32,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5503 states. [2020-11-07 05:23:33,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5503 to 5485. [2020-11-07 05:23:33,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5485 states. [2020-11-07 05:23:33,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 5838 transitions. [2020-11-07 05:23:33,052 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 5838 transitions. Word has length 393 [2020-11-07 05:23:33,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:33,052 INFO L481 AbstractCegarLoop]: Abstraction has 5485 states and 5838 transitions. [2020-11-07 05:23:33,052 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 05:23:33,052 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 5838 transitions. [2020-11-07 05:23:33,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2020-11-07 05:23:33,062 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:33,062 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:33,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 05:23:33,062 INFO L429 AbstractCegarLoop]: === Iteration 14 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:33,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:33,063 INFO L82 PathProgramCache]: Analyzing trace with hash 1241804021, now seen corresponding path program 1 times [2020-11-07 05:23:33,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:33,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2133784582] [2020-11-07 05:23:33,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:33,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,255 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,298 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:23:33,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:23:33,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:23:33,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:23:33,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2020-11-07 05:23:33,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:33,481 INFO L134 CoverageAnalysis]: Checked inductivity of 572 backedges. 366 proven. 4 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2020-11-07 05:23:33,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2133784582] [2020-11-07 05:23:33,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:33,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 05:23:33,482 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1398965619] [2020-11-07 05:23:33,482 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 05:23:33,482 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:33,483 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 05:23:33,483 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 05:23:33,483 INFO L87 Difference]: Start difference. First operand 5485 states and 5838 transitions. Second operand 7 states. [2020-11-07 05:23:37,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:37,275 INFO L93 Difference]: Finished difference Result 10767 states and 11526 transitions. [2020-11-07 05:23:37,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 05:23:37,275 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 401 [2020-11-07 05:23:37,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:37,292 INFO L225 Difference]: With dead ends: 10767 [2020-11-07 05:23:37,292 INFO L226 Difference]: Without dead ends: 5150 [2020-11-07 05:23:37,301 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 05:23:37,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5150 states. [2020-11-07 05:23:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5150 to 3434. [2020-11-07 05:23:37,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3434 states. [2020-11-07 05:23:37,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3434 states to 3434 states and 3623 transitions. [2020-11-07 05:23:37,977 INFO L78 Accepts]: Start accepts. Automaton has 3434 states and 3623 transitions. Word has length 401 [2020-11-07 05:23:37,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:37,977 INFO L481 AbstractCegarLoop]: Abstraction has 3434 states and 3623 transitions. [2020-11-07 05:23:37,977 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 05:23:37,978 INFO L276 IsEmpty]: Start isEmpty. Operand 3434 states and 3623 transitions. [2020-11-07 05:23:37,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 464 [2020-11-07 05:23:37,985 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:37,985 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:37,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-11-07 05:23:37,986 INFO L429 AbstractCegarLoop]: === Iteration 15 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:37,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:37,986 INFO L82 PathProgramCache]: Analyzing trace with hash -1458869766, now seen corresponding path program 1 times [2020-11-07 05:23:37,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:37,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1383865435] [2020-11-07 05:23:37,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:38,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:38,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:38,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:23:38,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,363 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:23:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:23:38,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:23:38,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,399 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-11-07 05:23:38,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,411 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-11-07 05:23:38,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:38,932 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 370 proven. 56 refuted. 0 times theorem prover too weak. 415 trivial. 0 not checked. [2020-11-07 05:23:38,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1383865435] [2020-11-07 05:23:38,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:38,933 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:23:38,933 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715580117] [2020-11-07 05:23:38,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:23:38,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:38,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:23:38,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:23:38,935 INFO L87 Difference]: Start difference. First operand 3434 states and 3623 transitions. Second operand 14 states. [2020-11-07 05:23:39,128 WARN L194 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:23:42,143 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2020-11-07 05:23:42,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:42,556 INFO L93 Difference]: Finished difference Result 6783 states and 7160 transitions. [2020-11-07 05:23:42,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 05:23:42,557 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 463 [2020-11-07 05:23:42,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:42,569 INFO L225 Difference]: With dead ends: 6783 [2020-11-07 05:23:42,569 INFO L226 Difference]: Without dead ends: 3434 [2020-11-07 05:23:42,575 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2020-11-07 05:23:42,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3434 states. [2020-11-07 05:23:43,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3434 to 3428. [2020-11-07 05:23:43,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3428 states. [2020-11-07 05:23:43,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3428 states to 3428 states and 3616 transitions. [2020-11-07 05:23:43,394 INFO L78 Accepts]: Start accepts. Automaton has 3428 states and 3616 transitions. Word has length 463 [2020-11-07 05:23:43,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:43,394 INFO L481 AbstractCegarLoop]: Abstraction has 3428 states and 3616 transitions. [2020-11-07 05:23:43,394 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:23:43,394 INFO L276 IsEmpty]: Start isEmpty. Operand 3428 states and 3616 transitions. [2020-11-07 05:23:43,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 484 [2020-11-07 05:23:43,399 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 05:23:43,400 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 05:23:43,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-11-07 05:23:43,400 INFO L429 AbstractCegarLoop]: === Iteration 16 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 05:23:43,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 05:23:43,401 INFO L82 PathProgramCache]: Analyzing trace with hash -215976248, now seen corresponding path program 1 times [2020-11-07 05:23:43,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 05:23:43,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1880905419] [2020-11-07 05:23:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 05:23:43,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 05:23:43,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-11-07 05:23:43,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,764 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-11-07 05:23:43,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,784 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 05:23:43,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-11-07 05:23:43,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2020-11-07 05:23:43,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,824 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-11-07 05:23:43,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:43,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 311 [2020-11-07 05:23:43,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 05:23:44,272 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 390 proven. 56 refuted. 0 times theorem prover too weak. 475 trivial. 0 not checked. [2020-11-07 05:23:44,273 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1880905419] [2020-11-07 05:23:44,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 05:23:44,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14] total 14 [2020-11-07 05:23:44,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933994560] [2020-11-07 05:23:44,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-11-07 05:23:44,274 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 05:23:44,274 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-11-07 05:23:44,275 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-11-07 05:23:44,275 INFO L87 Difference]: Start difference. First operand 3428 states and 3616 transitions. Second operand 14 states. [2020-11-07 05:23:44,501 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:23:45,847 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 95 [2020-11-07 05:23:45,976 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2020-11-07 05:23:46,976 WARN L194 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-11-07 05:23:49,069 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2020-11-07 05:23:49,919 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 101 [2020-11-07 05:23:50,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 05:23:50,622 INFO L93 Difference]: Finished difference Result 7010 states and 7425 transitions. [2020-11-07 05:23:50,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-11-07 05:23:50,623 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 483 [2020-11-07 05:23:50,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 05:23:50,628 INFO L225 Difference]: With dead ends: 7010 [2020-11-07 05:23:50,628 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 05:23:50,635 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=171, Invalid=531, Unknown=0, NotChecked=0, Total=702 [2020-11-07 05:23:50,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 05:23:50,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 05:23:50,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 05:23:50,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 05:23:50,636 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 483 [2020-11-07 05:23:50,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 05:23:50,636 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 05:23:50,636 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-11-07 05:23:50,636 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 05:23:50,636 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 05:23:50,636 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-11-07 05:23:50,638 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 05:23:53,623 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 103 [2020-11-07 05:23:55,953 WARN L194 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-11-07 05:24:14,970 WARN L194 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:24:38,191 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:24:38,982 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:24:39,133 WARN L194 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:24:50,667 WARN L194 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:25:46,442 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:26:22,492 WARN L194 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:26:22,622 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:26:22,752 WARN L194 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:26:24,028 WARN L194 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 319 DAG size of output: 222 [2020-11-07 05:26:32,457 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:26:35,339 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:26:38,134 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:26:40,973 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:26:41,942 WARN L194 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:26:43,162 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:26:44,126 WARN L194 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:26:46,977 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:26:48,189 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:26:51,012 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:26:52,284 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-11-07 05:26:53,365 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2020-11-07 05:26:54,225 WARN L194 SmtUtils]: Spent 852.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-11-07 05:26:55,180 WARN L194 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-11-07 05:26:56,246 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:26:58,060 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2020-11-07 05:27:00,664 WARN L194 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:01,923 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 221 DAG size of output: 82 [2020-11-07 05:27:02,946 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 225 DAG size of output: 80 [2020-11-07 05:27:05,553 WARN L194 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:08,165 WARN L194 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:09,193 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:27:10,071 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 74 [2020-11-07 05:27:11,327 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-11-07 05:27:12,471 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 218 DAG size of output: 75 [2020-11-07 05:27:15,282 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:27:16,078 WARN L194 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-11-07 05:27:17,088 WARN L194 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:27:18,206 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 168 DAG size of output: 73 [2020-11-07 05:27:19,378 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-11-07 05:27:20,409 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:27:21,318 WARN L194 SmtUtils]: Spent 902.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 79 [2020-11-07 05:27:23,935 WARN L194 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:25,007 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 218 DAG size of output: 78 [2020-11-07 05:27:27,657 WARN L194 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:28,521 WARN L194 SmtUtils]: Spent 856.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 74 [2020-11-07 05:27:29,362 WARN L194 SmtUtils]: Spent 835.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-11-07 05:27:30,269 WARN L194 SmtUtils]: Spent 900.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-11-07 05:27:32,901 WARN L194 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:33,952 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-11-07 05:27:34,985 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:27:35,808 WARN L194 SmtUtils]: Spent 816.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:27:37,115 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 173 DAG size of output: 81 [2020-11-07 05:27:38,686 WARN L194 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 185 DAG size of output: 87 [2020-11-07 05:27:39,845 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 182 DAG size of output: 77 [2020-11-07 05:27:40,741 WARN L194 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-11-07 05:27:43,389 WARN L194 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:44,468 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-11-07 05:27:45,653 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-11-07 05:27:46,588 WARN L194 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 76 [2020-11-07 05:27:47,707 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-11-07 05:27:48,589 WARN L194 SmtUtils]: Spent 875.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-11-07 05:27:49,487 WARN L194 SmtUtils]: Spent 887.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-11-07 05:27:50,286 WARN L194 SmtUtils]: Spent 793.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-11-07 05:27:51,583 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-11-07 05:27:52,452 WARN L194 SmtUtils]: Spent 861.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2020-11-07 05:27:53,773 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2020-11-07 05:27:56,414 WARN L194 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:27:57,278 WARN L194 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2020-11-07 05:27:58,290 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-11-07 05:27:59,536 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:28:00,337 WARN L194 SmtUtils]: Spent 795.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2020-11-07 05:28:03,166 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:28:03,958 WARN L194 SmtUtils]: Spent 784.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2020-11-07 05:28:04,950 WARN L194 SmtUtils]: Spent 985.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:28:07,859 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:28:10,697 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:28:13,581 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:28:14,569 WARN L194 SmtUtils]: Spent 980.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:28:15,558 WARN L194 SmtUtils]: Spent 981.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:28:16,543 WARN L194 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:28:19,424 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:28:22,075 WARN L194 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:28:22,885 WARN L194 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-11-07 05:28:24,468 WARN L194 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 184 DAG size of output: 83 [2020-11-07 05:28:27,125 WARN L194 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:28:28,024 WARN L194 SmtUtils]: Spent 891.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-11-07 05:28:29,217 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 227 DAG size of output: 78 [2020-11-07 05:28:30,173 WARN L194 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2020-11-07 05:28:31,311 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-11-07 05:28:32,674 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-11-07 05:28:33,567 WARN L194 SmtUtils]: Spent 886.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 74 [2020-11-07 05:28:34,932 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 231 DAG size of output: 79 [2020-11-07 05:28:35,769 WARN L194 SmtUtils]: Spent 830.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:28:37,156 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-11-07 05:28:38,246 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:28:40,904 WARN L194 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:28:41,777 WARN L194 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 77 [2020-11-07 05:28:42,862 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:28:43,677 WARN L194 SmtUtils]: Spent 807.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 74 [2020-11-07 05:28:44,535 WARN L194 SmtUtils]: Spent 850.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 77 [2020-11-07 05:28:45,719 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-11-07 05:28:46,964 WARN L194 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:28:47,767 WARN L194 SmtUtils]: Spent 796.00 ms on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:28:50,630 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:28:53,307 WARN L194 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:28:54,306 WARN L194 SmtUtils]: Spent 991.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:28:57,217 WARN L194 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:29:00,087 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:29:02,988 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:29:03,994 WARN L194 SmtUtils]: Spent 998.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:29:05,324 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 174 DAG size of output: 81 [2020-11-07 05:29:06,891 WARN L194 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 184 DAG size of output: 83 [2020-11-07 05:29:09,557 WARN L194 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:29:10,447 WARN L194 SmtUtils]: Spent 882.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-11-07 05:29:11,256 WARN L194 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 172 DAG size of output: 72 [2020-11-07 05:29:12,219 WARN L194 SmtUtils]: Spent 957.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-11-07 05:29:13,852 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 226 DAG size of output: 81 [2020-11-07 05:29:15,329 WARN L194 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 223 DAG size of output: 78 [2020-11-07 05:29:16,456 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 178 DAG size of output: 74 [2020-11-07 05:29:17,852 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 185 DAG size of output: 79 [2020-11-07 05:29:19,004 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-11-07 05:29:19,907 WARN L194 SmtUtils]: Spent 896.00 ms on a formula simplification. DAG size of input: 164 DAG size of output: 69 [2020-11-07 05:29:21,005 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 172 DAG size of output: 74 [2020-11-07 05:29:23,842 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2020-11-07 05:29:25,180 WARN L194 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-11-07 05:29:27,867 WARN L194 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:29:29,252 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-11-07 05:29:30,259 WARN L194 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:29:31,517 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:29:34,455 WARN L194 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:29:35,844 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-11-07 05:29:37,115 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2020-11-07 05:29:39,807 WARN L194 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:29:40,728 WARN L194 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 79 [2020-11-07 05:29:41,850 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:29:43,026 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-11-07 05:29:43,883 WARN L194 SmtUtils]: Spent 851.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-11-07 05:29:44,967 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:29:46,056 WARN L194 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:29:48,762 WARN L194 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:29:50,449 WARN L194 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 230 DAG size of output: 80 [2020-11-07 05:29:51,329 WARN L194 SmtUtils]: Spent 873.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 75 [2020-11-07 05:29:52,732 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-11-07 05:29:53,810 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:29:54,755 WARN L194 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-11-07 05:29:55,962 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:29:57,038 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:29:58,275 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 176 DAG size of output: 76 [2020-11-07 05:29:59,574 WARN L194 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-11-07 05:30:00,622 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 183 DAG size of output: 81 [2020-11-07 05:30:01,600 WARN L194 SmtUtils]: Spent 971.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 82 [2020-11-07 05:30:02,776 WARN L194 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 171 DAG size of output: 75 [2020-11-07 05:30:03,731 WARN L194 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 180 DAG size of output: 78 [2020-11-07 05:30:04,701 WARN L194 SmtUtils]: Spent 963.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 80 [2020-11-07 05:30:06,209 WARN L194 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 198 DAG size of output: 81 [2020-11-07 05:30:07,341 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:30:08,611 WARN L194 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:30:09,652 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-11-07 05:30:12,615 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:30:15,581 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:30:16,620 WARN L194 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-11-07 05:30:17,668 WARN L194 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-11-07 05:30:18,688 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:19,646 WARN L194 SmtUtils]: Spent 929.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 78 [2020-11-07 05:30:22,360 WARN L194 SmtUtils]: Spent 2.71 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:30:23,463 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-11-07 05:30:24,558 WARN L194 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-11-07 05:30:25,881 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-11-07 05:30:28,807 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:30:31,731 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:30:32,962 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-11-07 05:30:34,148 WARN L194 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-11-07 05:30:37,076 WARN L194 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:30:38,105 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:39,137 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:40,161 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:43,120 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:30:44,403 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:30:45,429 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:48,412 WARN L194 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:30:49,440 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:52,410 WARN L194 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:30:53,436 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:30:54,538 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-11-07 05:30:55,639 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 171 DAG size of output: 73 [2020-11-07 05:30:56,774 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-11-07 05:30:59,518 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:00,773 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-11-07 05:31:03,511 WARN L194 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:04,634 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 173 DAG size of output: 75 [2020-11-07 05:31:05,572 WARN L194 SmtUtils]: Spent 931.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2020-11-07 05:31:06,610 WARN L194 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:31:09,561 WARN L194 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:31:12,514 WARN L194 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:31:13,716 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-11-07 05:31:15,060 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 167 DAG size of output: 75 [2020-11-07 05:31:18,057 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:31:19,348 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:31:20,471 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 186 DAG size of output: 67 [2020-11-07 05:31:21,444 WARN L194 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 78 [2020-11-07 05:31:22,695 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-11-07 05:31:23,829 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 171 DAG size of output: 72 [2020-11-07 05:31:24,820 WARN L194 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 78 [2020-11-07 05:31:27,578 WARN L194 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:30,324 WARN L194 SmtUtils]: Spent 2.74 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:31,290 WARN L194 SmtUtils]: Spent 959.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 80 [2020-11-07 05:31:32,313 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 188 DAG size of output: 79 [2020-11-07 05:31:33,518 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-11-07 05:31:34,528 WARN L194 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 180 DAG size of output: 79 [2020-11-07 05:31:35,643 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-11-07 05:31:36,805 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:31:38,067 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-11-07 05:31:39,073 WARN L194 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 178 DAG size of output: 76 [2020-11-07 05:31:40,007 WARN L194 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 74 [2020-11-07 05:31:41,123 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:31:42,232 WARN L194 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 168 DAG size of output: 72 [2020-11-07 05:31:43,165 WARN L194 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 76 [2020-11-07 05:31:45,936 WARN L194 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:47,014 WARN L194 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 183 DAG size of output: 83 [2020-11-07 05:31:48,505 WARN L194 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 184 DAG size of output: 80 [2020-11-07 05:31:49,722 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-11-07 05:31:50,715 WARN L194 SmtUtils]: Spent 987.00 ms on a formula simplification. DAG size of input: 182 DAG size of output: 78 [2020-11-07 05:31:53,504 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:54,644 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:31:57,425 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:31:58,772 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 181 DAG size of output: 78 [2020-11-07 05:31:59,682 WARN L194 SmtUtils]: Spent 903.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 76 [2020-11-07 05:32:00,612 WARN L194 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 77 [2020-11-07 05:32:03,391 WARN L194 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:04,323 WARN L194 SmtUtils]: Spent 926.00 ms on a formula simplification. DAG size of input: 174 DAG size of output: 77 [2020-11-07 05:32:06,278 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 241 DAG size of output: 81 [2020-11-07 05:32:07,404 WARN L194 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:32:08,364 WARN L194 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 181 DAG size of output: 77 [2020-11-07 05:32:10,136 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 220 DAG size of output: 82 [2020-11-07 05:32:11,202 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 179 DAG size of output: 79 [2020-11-07 05:32:13,990 WARN L194 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:15,149 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:32:17,956 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:18,896 WARN L194 SmtUtils]: Spent 932.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 76 [2020-11-07 05:32:20,124 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-11-07 05:32:21,267 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:32:22,757 WARN L194 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-11-07 05:32:25,817 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:32:27,138 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:32:28,476 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:32:29,543 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 214 DAG size of output: 75 [2020-11-07 05:32:32,620 WARN L194 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:32:33,955 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:32:37,012 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 265 DAG size of output: 98 [2020-11-07 05:32:39,822 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:40,986 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 170 DAG size of output: 74 [2020-11-07 05:32:43,795 WARN L194 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:44,960 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 173 DAG size of output: 73 [2020-11-07 05:32:46,111 WARN L194 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 170 DAG size of output: 72 [2020-11-07 05:32:48,931 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:51,051 WARN L194 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 231 DAG size of output: 89 [2020-11-07 05:32:52,189 WARN L194 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:32:53,139 WARN L194 SmtUtils]: Spent 943.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-11-07 05:32:55,957 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:32:56,899 WARN L194 SmtUtils]: Spent 934.00 ms on a formula simplification. DAG size of input: 171 DAG size of output: 76 [2020-11-07 05:32:59,721 WARN L194 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:01,044 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 216 DAG size of output: 76 [2020-11-07 05:33:04,075 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:33:07,102 WARN L194 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:33:08,498 WARN L194 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 167 DAG size of output: 76 [2020-11-07 05:33:09,514 WARN L194 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 170 DAG size of output: 75 [2020-11-07 05:33:10,439 WARN L194 SmtUtils]: Spent 918.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-11-07 05:33:13,272 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:14,316 WARN L194 SmtUtils]: Spent 949.00 ms on a formula simplification. DAG size of input: 222 DAG size of output: 74 [2020-11-07 05:33:17,148 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:18,093 WARN L194 SmtUtils]: Spent 938.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-11-07 05:33:19,352 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 217 DAG size of output: 75 [2020-11-07 05:33:22,181 WARN L194 SmtUtils]: Spent 2.82 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:23,568 WARN L194 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 222 DAG size of output: 77 [2020-11-07 05:33:24,724 WARN L194 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 177 DAG size of output: 84 [2020-11-07 05:33:26,215 WARN L194 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-11-07 05:33:27,184 WARN L194 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 78 [2020-11-07 05:33:30,179 WARN L194 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 268 DAG size of output: 93 [2020-11-07 05:33:33,032 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:34,286 WARN L194 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-11-07 05:33:35,601 WARN L194 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 183 DAG size of output: 79 [2020-11-07 05:33:38,657 WARN L194 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:33:41,497 WARN L194 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:43,470 WARN L194 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 221 DAG size of output: 82 [2020-11-07 05:33:45,012 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 237 DAG size of output: 82 [2020-11-07 05:33:47,857 WARN L194 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:49,092 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 172 DAG size of output: 76 [2020-11-07 05:33:50,262 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 191 DAG size of output: 88 [2020-11-07 05:33:51,861 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 226 DAG size of output: 78 [2020-11-07 05:33:53,187 WARN L194 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 226 DAG size of output: 77 [2020-11-07 05:33:56,040 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:33:58,909 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:00,555 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 223 DAG size of output: 81 [2020-11-07 05:34:02,419 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 174 DAG size of output: 80 [2020-11-07 05:34:05,285 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:06,309 WARN L194 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 178 DAG size of output: 77 [2020-11-07 05:34:09,168 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:10,046 WARN L194 SmtUtils]: Spent 870.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 70 [2020-11-07 05:34:10,967 WARN L194 SmtUtils]: Spent 915.00 ms on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-11-07 05:34:12,398 WARN L194 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 177 DAG size of output: 78 [2020-11-07 05:34:13,272 WARN L194 SmtUtils]: Spent 866.00 ms on a formula simplification. DAG size of input: 168 DAG size of output: 70 [2020-11-07 05:34:14,240 WARN L194 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 76 [2020-11-07 05:34:17,112 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:18,563 WARN L194 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-11-07 05:34:19,906 WARN L194 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 227 DAG size of output: 76 [2020-11-07 05:34:21,454 WARN L194 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 181 DAG size of output: 80 [2020-11-07 05:34:22,622 WARN L194 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 169 DAG size of output: 72 [2020-11-07 05:34:23,525 WARN L194 SmtUtils]: Spent 895.00 ms on a formula simplification. DAG size of input: 175 DAG size of output: 74 [2020-11-07 05:34:26,388 WARN L194 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:29,260 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:30,772 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 175 DAG size of output: 76 [2020-11-07 05:34:32,060 WARN L194 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 217 DAG size of output: 75 [2020-11-07 05:34:33,058 WARN L194 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 76 [2020-11-07 05:34:36,153 WARN L194 SmtUtils]: Spent 3.09 s on a formula simplification. DAG size of input: 266 DAG size of output: 97 [2020-11-07 05:34:37,607 WARN L194 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 223 DAG size of output: 80 [2020-11-07 05:34:38,965 WARN L194 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 183 DAG size of output: 80 [2020-11-07 05:34:39,930 WARN L194 SmtUtils]: Spent 958.00 ms on a formula simplification. DAG size of input: 169 DAG size of output: 74 [2020-11-07 05:34:42,825 WARN L194 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:42,979 WARN L194 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 39 [2020-11-07 05:34:45,833 WARN L194 SmtUtils]: Spent 2.85 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:48,975 WARN L194 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 269 DAG size of output: 88 [2020-11-07 05:34:50,748 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 223 DAG size of output: 79 [2020-11-07 05:34:52,911 WARN L194 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 241 DAG size of output: 80 [2020-11-07 05:34:54,319 WARN L194 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 218 DAG size of output: 75 [2020-11-07 05:34:55,545 WARN L194 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 186 DAG size of output: 85 [2020-11-07 05:34:56,753 WARN L194 SmtUtils]: Spent 1.20 s on a formula simplification. DAG size of input: 187 DAG size of output: 88 [2020-11-07 05:34:58,057 WARN L194 SmtUtils]: Spent 1.30 s on a formula simplification. DAG size of input: 176 DAG size of output: 75 [2020-11-07 05:34:59,675 WARN L194 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 232 DAG size of output: 79 [2020-11-07 05:35:01,197 WARN L194 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 228 DAG size of output: 76 [2020-11-07 05:35:02,562 WARN L194 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 180 DAG size of output: 78 [2020-11-07 05:35:05,606 WARN L194 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 269 DAG size of output: 88