/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 06:20:11,074 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 06:20:11,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 06:20:11,124 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-11-07 06:20:11,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 06:20:11,139 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 06:20:11,140 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 06:20:11,142 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 06:20:11,143 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 06:20:11,144 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 06:20:11,161 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 06:20:11,163 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 06:20:11,165 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 06:20:11,167 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 06:20:11,168 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 06:20:11,169 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 06:20:11,173 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-07 06:20:11,183 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 06:20:11,184 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 06:20:11,185 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 06:20:11,187 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 06:20:11,199 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 06:20:11,199 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 06:20:11,201 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 06:20:11,201 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 06:20:11,202 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 06:20:11,202 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 06:20:11,202 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 06:20:11,202 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 06:20:11,203 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 06:20:11,203 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 06:20:11,203 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 06:20:11,203 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 06:20:11,204 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 06:20:11,204 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 06:20:11,204 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 06:20:11,205 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 06:20:11,205 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 06:20:11,205 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 06:20:11,205 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:20:11,206 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 06:20:11,206 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 06:20:11,206 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 06:20:11,206 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-11-07 06:20:11,593 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 06:20:11,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 06:20:11,634 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 06:20:11,635 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 06:20:11,636 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 06:20:11,637 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-11-07 06:20:11,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d257938a/5a938728dc974035b67117bac014d281/FLAGd2191b864 [2020-11-07 06:20:12,467 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 06:20:12,468 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label45.c [2020-11-07 06:20:12,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d257938a/5a938728dc974035b67117bac014d281/FLAGd2191b864 [2020-11-07 06:20:12,748 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6d257938a/5a938728dc974035b67117bac014d281 [2020-11-07 06:20:12,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 06:20:12,761 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 06:20:12,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 06:20:12,768 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 06:20:12,772 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 06:20:12,773 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:20:12" (1/1) ... [2020-11-07 06:20:12,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@823163c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:12, skipping insertion in model container [2020-11-07 06:20:12,777 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 06:20:12" (1/1) ... [2020-11-07 06:20:12,786 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 06:20:12,851 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 06:20:13,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:20:13,374 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 06:20:13,552 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 06:20:13,600 INFO L208 MainTranslator]: Completed translation [2020-11-07 06:20:13,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13 WrapperNode [2020-11-07 06:20:13,601 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 06:20:13,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 06:20:13,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 06:20:13,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 06:20:13,618 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,640 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,641 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,695 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,705 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... [2020-11-07 06:20:13,715 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 06:20:13,716 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 06:20:13,716 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 06:20:13,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 06:20:13,718 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 06:20:13,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 06:20:13,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 06:20:13,810 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 06:20:13,811 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-11-07 06:20:13,811 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 06:20:13,811 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-11-07 06:20:13,812 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 06:20:13,812 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 06:20:13,812 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 06:20:13,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 06:20:13,812 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 06:20:13,813 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-11-07 06:20:13,813 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 06:20:13,813 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 06:20:13,813 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 06:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 06:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 06:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 06:20:13,814 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 06:20:15,470 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 06:20:15,470 INFO L298 CfgBuilder]: Removed 1 assume(true) statements. [2020-11-07 06:20:15,473 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:20:15 BoogieIcfgContainer [2020-11-07 06:20:15,473 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 06:20:15,475 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 06:20:15,475 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 06:20:15,480 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 06:20:15,480 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 06:20:12" (1/3) ... [2020-11-07 06:20:15,481 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:20:15, skipping insertion in model container [2020-11-07 06:20:15,481 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 06:20:13" (2/3) ... [2020-11-07 06:20:15,482 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c16d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 06:20:15, skipping insertion in model container [2020-11-07 06:20:15,482 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 06:20:15" (3/3) ... [2020-11-07 06:20:15,483 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem10_label45.c [2020-11-07 06:20:15,501 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 06:20:15,506 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-07 06:20:15,521 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-07 06:20:15,550 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 06:20:15,550 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 06:20:15,550 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-11-07 06:20:15,551 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 06:20:15,551 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 06:20:15,551 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 06:20:15,551 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 06:20:15,551 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 06:20:15,592 INFO L276 IsEmpty]: Start isEmpty. Operand 468 states. [2020-11-07 06:20:15,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-11-07 06:20:15,605 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:15,606 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] [2020-11-07 06:20:15,607 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:15,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:15,613 INFO L82 PathProgramCache]: Analyzing trace with hash -2120148208, now seen corresponding path program 1 times [2020-11-07 06:20:15,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:15,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [345468548] [2020-11-07 06:20:15,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:15,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:15,985 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:16,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:16,039 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:20:16,040 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [345468548] [2020-11-07 06:20:16,042 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:20:16,042 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 06:20:16,043 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143206598] [2020-11-07 06:20:16,048 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 06:20:16,049 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:16,063 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 06:20:16,064 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 06:20:16,067 INFO L87 Difference]: Start difference. First operand 468 states. Second operand 4 states. [2020-11-07 06:20:18,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:18,938 INFO L93 Difference]: Finished difference Result 1102 states and 1528 transitions. [2020-11-07 06:20:18,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 06:20:18,941 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-11-07 06:20:18,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:18,971 INFO L225 Difference]: With dead ends: 1102 [2020-11-07 06:20:18,972 INFO L226 Difference]: Without dead ends: 584 [2020-11-07 06:20:18,988 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:20:19,011 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 584 states. [2020-11-07 06:20:19,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 584 to 554. [2020-11-07 06:20:19,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2020-11-07 06:20:19,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions. [2020-11-07 06:20:19,192 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 66 [2020-11-07 06:20:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:19,193 INFO L481 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions. [2020-11-07 06:20:19,193 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 06:20:19,193 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions. [2020-11-07 06:20:19,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2020-11-07 06:20:19,200 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:19,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:19,201 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 06:20:19,201 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:19,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:19,202 INFO L82 PathProgramCache]: Analyzing trace with hash -2113440394, now seen corresponding path program 1 times [2020-11-07 06:20:19,203 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:19,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1849331420] [2020-11-07 06:20:19,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:19,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:19,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:19,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:19,446 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:19,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:19,524 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 40 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:20:19,524 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1849331420] [2020-11-07 06:20:19,524 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:19,525 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:20:19,525 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29951642] [2020-11-07 06:20:19,526 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:20:19,527 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:19,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:20:19,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:20:19,528 INFO L87 Difference]: Start difference. First operand 554 states and 651 transitions. Second operand 5 states. [2020-11-07 06:20:22,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:22,059 INFO L93 Difference]: Finished difference Result 1257 states and 1537 transitions. [2020-11-07 06:20:22,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:20:22,060 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 145 [2020-11-07 06:20:22,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:22,071 INFO L225 Difference]: With dead ends: 1257 [2020-11-07 06:20:22,071 INFO L226 Difference]: Without dead ends: 726 [2020-11-07 06:20:22,074 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:20:22,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2020-11-07 06:20:22,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 706. [2020-11-07 06:20:22,175 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 706 states. [2020-11-07 06:20:22,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 706 states to 706 states and 816 transitions. [2020-11-07 06:20:22,179 INFO L78 Accepts]: Start accepts. Automaton has 706 states and 816 transitions. Word has length 145 [2020-11-07 06:20:22,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:22,180 INFO L481 AbstractCegarLoop]: Abstraction has 706 states and 816 transitions. [2020-11-07 06:20:22,180 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:20:22,181 INFO L276 IsEmpty]: Start isEmpty. Operand 706 states and 816 transitions. [2020-11-07 06:20:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-11-07 06:20:22,184 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:22,185 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:22,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 06:20:22,186 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:22,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:22,187 INFO L82 PathProgramCache]: Analyzing trace with hash -2063857481, now seen corresponding path program 1 times [2020-11-07 06:20:22,187 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:22,187 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1281409610] [2020-11-07 06:20:22,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:22,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:22,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:22,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:22,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:22,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:20:22,723 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1281409610] [2020-11-07 06:20:22,723 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:20:22,723 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-11-07 06:20:22,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637431239] [2020-11-07 06:20:22,724 INFO L461 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-11-07 06:20:22,725 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:22,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-11-07 06:20:22,725 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2020-11-07 06:20:22,726 INFO L87 Difference]: Start difference. First operand 706 states and 816 transitions. Second operand 11 states. [2020-11-07 06:20:23,339 WARN L194 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 75 [2020-11-07 06:20:24,216 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2020-11-07 06:20:24,775 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 66 [2020-11-07 06:20:27,617 WARN L194 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 77 [2020-11-07 06:20:28,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:28,243 INFO L93 Difference]: Finished difference Result 2336 states and 2763 transitions. [2020-11-07 06:20:28,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-11-07 06:20:28,244 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 152 [2020-11-07 06:20:28,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:28,260 INFO L225 Difference]: With dead ends: 2336 [2020-11-07 06:20:28,261 INFO L226 Difference]: Without dead ends: 1653 [2020-11-07 06:20:28,265 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=141, Invalid=411, Unknown=0, NotChecked=0, Total=552 [2020-11-07 06:20:28,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1653 states. [2020-11-07 06:20:28,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1653 to 1219. [2020-11-07 06:20:28,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1219 states. [2020-11-07 06:20:28,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1219 states to 1219 states and 1439 transitions. [2020-11-07 06:20:28,522 INFO L78 Accepts]: Start accepts. Automaton has 1219 states and 1439 transitions. Word has length 152 [2020-11-07 06:20:28,524 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:28,524 INFO L481 AbstractCegarLoop]: Abstraction has 1219 states and 1439 transitions. [2020-11-07 06:20:28,524 INFO L482 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-11-07 06:20:28,525 INFO L276 IsEmpty]: Start isEmpty. Operand 1219 states and 1439 transitions. [2020-11-07 06:20:28,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2020-11-07 06:20:28,530 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:28,531 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:28,532 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 06:20:28,532 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:28,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:28,533 INFO L82 PathProgramCache]: Analyzing trace with hash -777975276, now seen corresponding path program 1 times [2020-11-07 06:20:28,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:28,534 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [68824200] [2020-11-07 06:20:28,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:28,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:28,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:28,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:28,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:28,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:28,987 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 24 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:20:28,987 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [68824200] [2020-11-07 06:20:28,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:28,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-11-07 06:20:28,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2123042755] [2020-11-07 06:20:28,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-11-07 06:20:28,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:28,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-11-07 06:20:28,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-11-07 06:20:28,990 INFO L87 Difference]: Start difference. First operand 1219 states and 1439 transitions. Second operand 13 states. [2020-11-07 06:20:33,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:33,372 INFO L93 Difference]: Finished difference Result 3196 states and 3884 transitions. [2020-11-07 06:20:33,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 06:20:33,373 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 155 [2020-11-07 06:20:33,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:33,400 INFO L225 Difference]: With dead ends: 3196 [2020-11-07 06:20:33,401 INFO L226 Difference]: Without dead ends: 1957 [2020-11-07 06:20:33,410 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=109, Invalid=311, Unknown=0, NotChecked=0, Total=420 [2020-11-07 06:20:33,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1957 states. [2020-11-07 06:20:33,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1957 to 1870. [2020-11-07 06:20:33,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1870 states. [2020-11-07 06:20:33,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1870 states to 1870 states and 2247 transitions. [2020-11-07 06:20:33,851 INFO L78 Accepts]: Start accepts. Automaton has 1870 states and 2247 transitions. Word has length 155 [2020-11-07 06:20:33,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:33,851 INFO L481 AbstractCegarLoop]: Abstraction has 1870 states and 2247 transitions. [2020-11-07 06:20:33,851 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-11-07 06:20:33,852 INFO L276 IsEmpty]: Start isEmpty. Operand 1870 states and 2247 transitions. [2020-11-07 06:20:33,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-11-07 06:20:33,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:33,858 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:33,858 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 06:20:33,858 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:33,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:33,859 INFO L82 PathProgramCache]: Analyzing trace with hash 468898254, now seen corresponding path program 1 times [2020-11-07 06:20:33,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:33,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803351767] [2020-11-07 06:20:33,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:33,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:34,022 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:34,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:34,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:34,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:34,272 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 06:20:34,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803351767] [2020-11-07 06:20:34,273 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 06:20:34,273 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-11-07 06:20:34,273 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1871524589] [2020-11-07 06:20:34,274 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-11-07 06:20:34,275 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:34,275 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-11-07 06:20:34,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-07 06:20:34,276 INFO L87 Difference]: Start difference. First operand 1870 states and 2247 transitions. Second operand 8 states. [2020-11-07 06:20:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:37,235 INFO L93 Difference]: Finished difference Result 4441 states and 5703 transitions. [2020-11-07 06:20:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 06:20:37,235 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2020-11-07 06:20:37,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:37,269 INFO L225 Difference]: With dead ends: 4441 [2020-11-07 06:20:37,270 INFO L226 Difference]: Without dead ends: 2744 [2020-11-07 06:20:37,278 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-11-07 06:20:37,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2744 states. [2020-11-07 06:20:37,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2744 to 2654. [2020-11-07 06:20:37,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2654 states. [2020-11-07 06:20:37,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2654 states to 2654 states and 3254 transitions. [2020-11-07 06:20:37,798 INFO L78 Accepts]: Start accepts. Automaton has 2654 states and 3254 transitions. Word has length 171 [2020-11-07 06:20:37,798 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:37,798 INFO L481 AbstractCegarLoop]: Abstraction has 2654 states and 3254 transitions. [2020-11-07 06:20:37,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-11-07 06:20:37,799 INFO L276 IsEmpty]: Start isEmpty. Operand 2654 states and 3254 transitions. [2020-11-07 06:20:37,800 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2020-11-07 06:20:37,801 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:37,801 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:37,801 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 06:20:37,801 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:37,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:37,802 INFO L82 PathProgramCache]: Analyzing trace with hash -1798854823, now seen corresponding path program 1 times [2020-11-07 06:20:37,802 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:37,802 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [633603114] [2020-11-07 06:20:37,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:37,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:37,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:37,972 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:37,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:38,069 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 33 proven. 1 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-11-07 06:20:38,069 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [633603114] [2020-11-07 06:20:38,070 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:38,070 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:20:38,070 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279577697] [2020-11-07 06:20:38,071 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:20:38,071 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:38,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:20:38,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:20:38,072 INFO L87 Difference]: Start difference. First operand 2654 states and 3254 transitions. Second operand 7 states. [2020-11-07 06:20:42,058 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:42,058 INFO L93 Difference]: Finished difference Result 4177 states and 5191 transitions. [2020-11-07 06:20:42,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-11-07 06:20:42,060 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 190 [2020-11-07 06:20:42,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:42,088 INFO L225 Difference]: With dead ends: 4177 [2020-11-07 06:20:42,088 INFO L226 Difference]: Without dead ends: 4174 [2020-11-07 06:20:42,091 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:20:42,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4174 states. [2020-11-07 06:20:42,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4174 to 3120. [2020-11-07 06:20:42,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3120 states. [2020-11-07 06:20:42,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3120 states to 3120 states and 3955 transitions. [2020-11-07 06:20:42,686 INFO L78 Accepts]: Start accepts. Automaton has 3120 states and 3955 transitions. Word has length 190 [2020-11-07 06:20:42,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:42,686 INFO L481 AbstractCegarLoop]: Abstraction has 3120 states and 3955 transitions. [2020-11-07 06:20:42,686 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:20:42,687 INFO L276 IsEmpty]: Start isEmpty. Operand 3120 states and 3955 transitions. [2020-11-07 06:20:42,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 289 [2020-11-07 06:20:42,694 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:42,694 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:42,695 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 06:20:42,695 INFO L429 AbstractCegarLoop]: === Iteration 7 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:42,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:42,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1009004533, now seen corresponding path program 1 times [2020-11-07 06:20:42,696 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:42,696 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2572302] [2020-11-07 06:20:42,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:42,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:42,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:42,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:42,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:42,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:42,894 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 06:20:42,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:43,073 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 175 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-11-07 06:20:43,074 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2572302] [2020-11-07 06:20:43,074 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:43,074 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:20:43,074 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638671774] [2020-11-07 06:20:43,075 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:20:43,076 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:43,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:20:43,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:20:43,076 INFO L87 Difference]: Start difference. First operand 3120 states and 3955 transitions. Second operand 7 states. [2020-11-07 06:20:46,566 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:46,566 INFO L93 Difference]: Finished difference Result 6733 states and 8753 transitions. [2020-11-07 06:20:46,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:20:46,567 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 288 [2020-11-07 06:20:46,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:46,597 INFO L225 Difference]: With dead ends: 6733 [2020-11-07 06:20:46,597 INFO L226 Difference]: Without dead ends: 3786 [2020-11-07 06:20:46,612 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:20:46,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3786 states. [2020-11-07 06:20:47,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3786 to 3738. [2020-11-07 06:20:47,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3738 states. [2020-11-07 06:20:47,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3738 states to 3738 states and 4484 transitions. [2020-11-07 06:20:47,429 INFO L78 Accepts]: Start accepts. Automaton has 3738 states and 4484 transitions. Word has length 288 [2020-11-07 06:20:47,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:47,430 INFO L481 AbstractCegarLoop]: Abstraction has 3738 states and 4484 transitions. [2020-11-07 06:20:47,430 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:20:47,430 INFO L276 IsEmpty]: Start isEmpty. Operand 3738 states and 4484 transitions. [2020-11-07 06:20:47,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2020-11-07 06:20:47,440 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:47,440 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 06:20:47,441 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-07 06:20:47,441 INFO L429 AbstractCegarLoop]: === Iteration 8 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:47,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:47,441 INFO L82 PathProgramCache]: Analyzing trace with hash 563058874, now seen corresponding path program 1 times [2020-11-07 06:20:47,442 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:47,442 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [568664808] [2020-11-07 06:20:47,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:47,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:47,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:47,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:47,715 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:47,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:47,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-11-07 06:20:47,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:47,869 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2020-11-07 06:20:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:48,191 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 89 proven. 70 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2020-11-07 06:20:48,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [568664808] [2020-11-07 06:20:48,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:48,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17] total 17 [2020-11-07 06:20:48,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659705057] [2020-11-07 06:20:48,193 INFO L461 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-11-07 06:20:48,193 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:48,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-11-07 06:20:48,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2020-11-07 06:20:48,194 INFO L87 Difference]: Start difference. First operand 3738 states and 4484 transitions. Second operand 17 states. [2020-11-07 06:20:48,436 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-11-07 06:20:49,121 WARN L194 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 68 [2020-11-07 06:20:49,812 WARN L194 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 69 [2020-11-07 06:20:50,295 WARN L194 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 67 [2020-11-07 06:20:57,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:20:57,008 INFO L93 Difference]: Finished difference Result 10646 states and 13011 transitions. [2020-11-07 06:20:57,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-11-07 06:20:57,009 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 329 [2020-11-07 06:20:57,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:20:57,057 INFO L225 Difference]: With dead ends: 10646 [2020-11-07 06:20:57,057 INFO L226 Difference]: Without dead ends: 7081 [2020-11-07 06:20:57,072 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=236, Invalid=694, Unknown=0, NotChecked=0, Total=930 [2020-11-07 06:20:57,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7081 states. [2020-11-07 06:20:58,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7081 to 5593. [2020-11-07 06:20:58,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5593 states. [2020-11-07 06:20:58,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5593 states to 5593 states and 6772 transitions. [2020-11-07 06:20:58,169 INFO L78 Accepts]: Start accepts. Automaton has 5593 states and 6772 transitions. Word has length 329 [2020-11-07 06:20:58,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:20:58,170 INFO L481 AbstractCegarLoop]: Abstraction has 5593 states and 6772 transitions. [2020-11-07 06:20:58,170 INFO L482 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-11-07 06:20:58,170 INFO L276 IsEmpty]: Start isEmpty. Operand 5593 states and 6772 transitions. [2020-11-07 06:20:58,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 342 [2020-11-07 06:20:58,182 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:20:58,182 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:20:58,183 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-07 06:20:58,183 INFO L429 AbstractCegarLoop]: === Iteration 9 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:20:58,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:20:58,184 INFO L82 PathProgramCache]: Analyzing trace with hash -271678491, now seen corresponding path program 1 times [2020-11-07 06:20:58,184 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:20:58,184 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1706061160] [2020-11-07 06:20:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:20:58,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:58,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:20:58,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:58,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:20:58,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:58,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-11-07 06:20:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:20:58,558 INFO L134 CoverageAnalysis]: Checked inductivity of 203 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2020-11-07 06:20:58,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1706061160] [2020-11-07 06:20:58,561 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:20:58,561 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-11-07 06:20:58,563 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008154754] [2020-11-07 06:20:58,563 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-07 06:20:58,564 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:20:58,564 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-07 06:20:58,565 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-07 06:20:58,565 INFO L87 Difference]: Start difference. First operand 5593 states and 6772 transitions. Second operand 5 states. [2020-11-07 06:21:01,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:21:01,586 INFO L93 Difference]: Finished difference Result 11328 states and 14030 transitions. [2020-11-07 06:21:01,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-07 06:21:01,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 341 [2020-11-07 06:21:01,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:21:01,624 INFO L225 Difference]: With dead ends: 11328 [2020-11-07 06:21:01,624 INFO L226 Difference]: Without dead ends: 6211 [2020-11-07 06:21:01,642 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-11-07 06:21:01,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6211 states. [2020-11-07 06:21:02,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6211 to 5597. [2020-11-07 06:21:02,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5597 states. [2020-11-07 06:21:02,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5597 states to 5597 states and 6614 transitions. [2020-11-07 06:21:02,607 INFO L78 Accepts]: Start accepts. Automaton has 5597 states and 6614 transitions. Word has length 341 [2020-11-07 06:21:02,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:21:02,608 INFO L481 AbstractCegarLoop]: Abstraction has 5597 states and 6614 transitions. [2020-11-07 06:21:02,608 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-07 06:21:02,608 INFO L276 IsEmpty]: Start isEmpty. Operand 5597 states and 6614 transitions. [2020-11-07 06:21:02,620 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-11-07 06:21:02,620 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:21:02,621 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 06:21:02,621 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-11-07 06:21:02,621 INFO L429 AbstractCegarLoop]: === Iteration 10 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:21:02,621 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:21:02,622 INFO L82 PathProgramCache]: Analyzing trace with hash -618012515, now seen corresponding path program 1 times [2020-11-07 06:21:02,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:21:02,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [106777919] [2020-11-07 06:21:02,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:21:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:02,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:21:02,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:02,806 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:21:02,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:02,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 06:21:02,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:02,878 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-11-07 06:21:02,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:03,045 INFO L134 CoverageAnalysis]: Checked inductivity of 374 backedges. 292 proven. 2 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2020-11-07 06:21:03,045 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [106777919] [2020-11-07 06:21:03,046 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:21:03,046 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-11-07 06:21:03,046 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1814041495] [2020-11-07 06:21:03,047 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-11-07 06:21:03,047 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:21:03,047 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-11-07 06:21:03,047 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-11-07 06:21:03,048 INFO L87 Difference]: Start difference. First operand 5597 states and 6614 transitions. Second operand 7 states. [2020-11-07 06:21:07,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:21:07,830 INFO L93 Difference]: Finished difference Result 11577 states and 13679 transitions. [2020-11-07 06:21:07,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-11-07 06:21:07,836 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-11-07 06:21:07,836 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:21:07,869 INFO L225 Difference]: With dead ends: 11577 [2020-11-07 06:21:07,870 INFO L226 Difference]: Without dead ends: 6456 [2020-11-07 06:21:07,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-11-07 06:21:07,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6456 states. [2020-11-07 06:21:09,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6456 to 6282. [2020-11-07 06:21:09,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6282 states. [2020-11-07 06:21:09,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6282 states to 6282 states and 7099 transitions. [2020-11-07 06:21:09,056 INFO L78 Accepts]: Start accepts. Automaton has 6282 states and 7099 transitions. Word has length 383 [2020-11-07 06:21:09,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:21:09,057 INFO L481 AbstractCegarLoop]: Abstraction has 6282 states and 7099 transitions. [2020-11-07 06:21:09,057 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-11-07 06:21:09,057 INFO L276 IsEmpty]: Start isEmpty. Operand 6282 states and 7099 transitions. [2020-11-07 06:21:09,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2020-11-07 06:21:09,071 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:21:09,071 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-11-07 06:21:09,072 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-11-07 06:21:09,072 INFO L429 AbstractCegarLoop]: === Iteration 11 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:21:09,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:21:09,072 INFO L82 PathProgramCache]: Analyzing trace with hash 1749640740, now seen corresponding path program 1 times [2020-11-07 06:21:09,073 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:21:09,073 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1601201449] [2020-11-07 06:21:09,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:21:09,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:09,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:21:09,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:09,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:21:09,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:09,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2020-11-07 06:21:09,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:09,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2020-11-07 06:21:09,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:09,674 INFO L134 CoverageAnalysis]: Checked inductivity of 380 backedges. 287 proven. 16 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2020-11-07 06:21:09,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1601201449] [2020-11-07 06:21:09,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:21:09,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2020-11-07 06:21:09,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162510629] [2020-11-07 06:21:09,675 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 06:21:09,676 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:21:09,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 06:21:09,676 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-11-07 06:21:09,676 INFO L87 Difference]: Start difference. First operand 6282 states and 7099 transitions. Second operand 10 states. [2020-11-07 06:21:10,282 WARN L194 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 63 [2020-11-07 06:21:15,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:21:15,630 INFO L93 Difference]: Finished difference Result 14643 states and 16587 transitions. [2020-11-07 06:21:15,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-11-07 06:21:15,640 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 392 [2020-11-07 06:21:15,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:21:15,675 INFO L225 Difference]: With dead ends: 14643 [2020-11-07 06:21:15,675 INFO L226 Difference]: Without dead ends: 6311 [2020-11-07 06:21:15,696 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=93, Invalid=287, Unknown=0, NotChecked=0, Total=380 [2020-11-07 06:21:15,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6311 states. [2020-11-07 06:21:16,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6311 to 5405. [2020-11-07 06:21:16,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5405 states. [2020-11-07 06:21:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5405 states to 5405 states and 5833 transitions. [2020-11-07 06:21:16,871 INFO L78 Accepts]: Start accepts. Automaton has 5405 states and 5833 transitions. Word has length 392 [2020-11-07 06:21:16,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:21:16,872 INFO L481 AbstractCegarLoop]: Abstraction has 5405 states and 5833 transitions. [2020-11-07 06:21:16,872 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 06:21:16,872 INFO L276 IsEmpty]: Start isEmpty. Operand 5405 states and 5833 transitions. [2020-11-07 06:21:16,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 413 [2020-11-07 06:21:16,883 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:21:16,883 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-11-07 06:21:16,884 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-11-07 06:21:16,884 INFO L429 AbstractCegarLoop]: === Iteration 12 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:21:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:21:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash -974221724, now seen corresponding path program 1 times [2020-11-07 06:21:16,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:21:16,885 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1888898596] [2020-11-07 06:21:16,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:21:16,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:21:17,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:21:17,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-11-07 06:21:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2020-11-07 06:21:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-11-07 06:21:17,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:17,727 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 449 proven. 42 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2020-11-07 06:21:17,728 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1888898596] [2020-11-07 06:21:17,728 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:21:17,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2020-11-07 06:21:17,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159189174] [2020-11-07 06:21:17,729 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-11-07 06:21:17,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:21:17,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-11-07 06:21:17,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2020-11-07 06:21:17,730 INFO L87 Difference]: Start difference. First operand 5405 states and 5833 transitions. Second operand 15 states. [2020-11-07 06:21:23,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:21:23,811 INFO L93 Difference]: Finished difference Result 12224 states and 13277 transitions. [2020-11-07 06:21:23,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-11-07 06:21:23,812 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 412 [2020-11-07 06:21:23,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:21:23,850 INFO L225 Difference]: With dead ends: 12224 [2020-11-07 06:21:23,850 INFO L226 Difference]: Without dead ends: 7445 [2020-11-07 06:21:23,864 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=149, Invalid=451, Unknown=0, NotChecked=0, Total=600 [2020-11-07 06:21:23,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7445 states. [2020-11-07 06:21:25,481 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7445 to 6340. [2020-11-07 06:21:25,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6340 states. [2020-11-07 06:21:25,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6340 states to 6340 states and 6862 transitions. [2020-11-07 06:21:25,495 INFO L78 Accepts]: Start accepts. Automaton has 6340 states and 6862 transitions. Word has length 412 [2020-11-07 06:21:25,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:21:25,495 INFO L481 AbstractCegarLoop]: Abstraction has 6340 states and 6862 transitions. [2020-11-07 06:21:25,496 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-11-07 06:21:25,496 INFO L276 IsEmpty]: Start isEmpty. Operand 6340 states and 6862 transitions. [2020-11-07 06:21:25,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 517 [2020-11-07 06:21:25,512 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 06:21:25,513 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 06:21:25,513 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-11-07 06:21:25,513 INFO L429 AbstractCegarLoop]: === Iteration 13 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 06:21:25,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 06:21:25,514 INFO L82 PathProgramCache]: Analyzing trace with hash 1446303913, now seen corresponding path program 1 times [2020-11-07 06:21:25,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 06:21:25,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1870998293] [2020-11-07 06:21:25,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 06:21:25,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:25,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 06:21:25,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:25,825 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-11-07 06:21:25,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:25,881 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2020-11-07 06:21:25,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:26,045 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-11-07 06:21:26,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:26,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2020-11-07 06:21:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 06:21:26,763 INFO L134 CoverageAnalysis]: Checked inductivity of 713 backedges. 382 proven. 253 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2020-11-07 06:21:26,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1870998293] [2020-11-07 06:21:26,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-11-07 06:21:26,764 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21] total 21 [2020-11-07 06:21:26,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [308577901] [2020-11-07 06:21:26,765 INFO L461 AbstractCegarLoop]: Interpolant automaton has 21 states [2020-11-07 06:21:26,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 06:21:26,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2020-11-07 06:21:26,766 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2020-11-07 06:21:26,766 INFO L87 Difference]: Start difference. First operand 6340 states and 6862 transitions. Second operand 21 states. [2020-11-07 06:21:27,560 WARN L194 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 73 [2020-11-07 06:21:27,751 WARN L194 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 71 [2020-11-07 06:21:32,471 WARN L194 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 70 [2020-11-07 06:21:39,249 WARN L194 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 75 [2020-11-07 06:21:40,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 06:21:40,688 INFO L93 Difference]: Finished difference Result 15893 states and 17390 transitions. [2020-11-07 06:21:40,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2020-11-07 06:21:40,689 INFO L78 Accepts]: Start accepts. Automaton has 21 states. Word has length 516 [2020-11-07 06:21:40,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 06:21:40,700 INFO L225 Difference]: With dead ends: 15893 [2020-11-07 06:21:40,700 INFO L226 Difference]: Without dead ends: 0 [2020-11-07 06:21:40,731 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 70 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1655 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=939, Invalid=4173, Unknown=0, NotChecked=0, Total=5112 [2020-11-07 06:21:40,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-07 06:21:40,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-07 06:21:40,732 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-07 06:21:40,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-07 06:21:40,732 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 516 [2020-11-07 06:21:40,732 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 06:21:40,732 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-07 06:21:40,733 INFO L482 AbstractCegarLoop]: Interpolant automaton has 21 states. [2020-11-07 06:21:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-07 06:21:40,733 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-07 06:21:40,733 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-11-07 06:21:40,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-07 06:21:43,735 WARN L194 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 108 [2020-11-07 06:21:46,197 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2020-11-07 06:21:49,064 WARN L194 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 95 [2020-11-07 06:21:57,856 WARN L194 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 84 [2020-11-07 06:22:11,777 WARN L194 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 98 [2020-11-07 06:22:26,370 WARN L194 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:22:42,037 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:22:55,919 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:22:56,134 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:22:56,351 WARN L194 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:23:16,514 WARN L194 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:23:25,840 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2020-11-07 06:23:26,895 WARN L194 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2020-11-07 06:23:27,955 WARN L194 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 348 DAG size of output: 235 [2020-11-07 06:23:28,526 WARN L194 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 350 DAG size of output: 246 [2020-11-07 06:23:57,331 WARN L194 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:23:57,510 WARN L194 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 163 [2020-11-07 06:23:57,991 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 170 [2020-11-07 06:23:58,452 WARN L194 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:23:59,002 WARN L194 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 170 [2020-11-07 06:23:59,833 WARN L194 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 173 DAG size of output: 161 [2020-11-07 06:23:59,966 WARN L194 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:24:00,864 WARN L194 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:24:01,044 WARN L194 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 163 [2020-11-07 06:24:01,503 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 170 [2020-11-07 06:24:01,981 WARN L194 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:24:02,532 WARN L194 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 170 [2020-11-07 06:24:03,468 WARN L194 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 169 [2020-11-07 06:25:12,167 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 250 DAG size of output: 77 [2020-11-07 06:25:14,228 WARN L194 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 259 DAG size of output: 88 [2020-11-07 06:25:16,044 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 291 DAG size of output: 78 [2020-11-07 06:25:17,750 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 249 DAG size of output: 75 [2020-11-07 06:25:19,359 WARN L194 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 285 DAG size of output: 76 [2020-11-07 06:25:21,310 WARN L194 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 295 DAG size of output: 77 [2020-11-07 06:25:23,484 WARN L194 SmtUtils]: Spent 2.16 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-11-07 06:25:25,227 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 286 DAG size of output: 85 [2020-11-07 06:25:27,172 WARN L194 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 297 DAG size of output: 77 [2020-11-07 06:25:29,311 WARN L194 SmtUtils]: Spent 2.13 s on a formula simplification. DAG size of input: 294 DAG size of output: 84 [2020-11-07 06:25:33,666 WARN L194 SmtUtils]: Spent 4.33 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:25:37,799 WARN L194 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:25:39,489 WARN L194 SmtUtils]: Spent 1.68 s on a formula simplification. DAG size of input: 255 DAG size of output: 81 [2020-11-07 06:25:41,749 WARN L194 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 262 DAG size of output: 85 [2020-11-07 06:25:43,504 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 256 DAG size of output: 82 [2020-11-07 06:25:45,401 WARN L194 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 265 DAG size of output: 77 [2020-11-07 06:25:47,082 WARN L194 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 264 DAG size of output: 81 [2020-11-07 06:25:48,864 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 255 DAG size of output: 77 [2020-11-07 06:25:53,054 WARN L194 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:25:54,825 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 254 DAG size of output: 78 [2020-11-07 06:25:56,924 WARN L194 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 261 DAG size of output: 88 [2020-11-07 06:25:58,577 WARN L194 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 254 DAG size of output: 82 [2020-11-07 06:26:02,576 WARN L194 SmtUtils]: Spent 3.98 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:26:06,605 WARN L194 SmtUtils]: Spent 4.01 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:26:10,612 WARN L194 SmtUtils]: Spent 3.99 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:26:14,633 WARN L194 SmtUtils]: Spent 4.00 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:26:16,567 WARN L194 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 294 DAG size of output: 80 [2020-11-07 06:26:18,495 WARN L194 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 259 DAG size of output: 84 [2020-11-07 06:26:20,413 WARN L194 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 256 DAG size of output: 89 [2020-11-07 06:26:22,041 WARN L194 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 254 DAG size of output: 81 [2020-11-07 06:26:23,708 WARN L194 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 250 DAG size of output: 76 [2020-11-07 06:26:25,759 WARN L194 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 308 DAG size of output: 77 [2020-11-07 06:26:27,577 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:31,450 WARN L194 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:26:35,352 WARN L194 SmtUtils]: Spent 3.89 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:26:39,230 WARN L194 SmtUtils]: Spent 3.86 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:26:41,072 WARN L194 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:42,895 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:44,720 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:48,633 WARN L194 SmtUtils]: Spent 3.90 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:26:50,459 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:52,296 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:26:56,156 WARN L194 SmtUtils]: Spent 3.84 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:26:57,989 WARN L194 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:27:01,854 WARN L194 SmtUtils]: Spent 3.85 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:27:03,616 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 282 DAG size of output: 76 [2020-11-07 06:27:07,552 WARN L194 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:27:11,530 WARN L194 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:27:15,464 WARN L194 SmtUtils]: Spent 3.92 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:27:17,218 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 282 DAG size of output: 76 [2020-11-07 06:27:18,993 WARN L194 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 282 DAG size of output: 76 [2020-11-07 06:27:20,847 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:27:24,797 WARN L194 SmtUtils]: Spent 3.93 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:27:28,691 WARN L194 SmtUtils]: Spent 3.88 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:27:30,669 WARN L194 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 256 DAG size of output: 89 [2020-11-07 06:27:32,796 WARN L194 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 290 DAG size of output: 75 [2020-11-07 06:27:34,904 WARN L194 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 259 DAG size of output: 88 [2020-11-07 06:27:36,668 WARN L194 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 264 DAG size of output: 80 [2020-11-07 06:27:38,423 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 253 DAG size of output: 84 [2020-11-07 06:27:40,163 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 255 DAG size of output: 85 [2020-11-07 06:27:41,984 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 248 DAG size of output: 75 [2020-11-07 06:27:44,111 WARN L194 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 262 DAG size of output: 85 [2020-11-07 06:27:45,799 WARN L194 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 259 DAG size of output: 76 [2020-11-07 06:27:47,699 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 291 DAG size of output: 79 [2020-11-07 06:27:49,502 WARN L194 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 251 DAG size of output: 78 [2020-11-07 06:27:51,373 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 257 DAG size of output: 88 [2020-11-07 06:27:55,504 WARN L194 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:27:59,669 WARN L194 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:28:01,855 WARN L194 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 295 DAG size of output: 80 [2020-11-07 06:28:03,993 WARN L194 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 259 DAG size of output: 88 [2020-11-07 06:28:08,175 WARN L194 SmtUtils]: Spent 4.16 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:28:09,919 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 287 DAG size of output: 78 [2020-11-07 06:28:14,091 WARN L194 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:28:16,142 WARN L194 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 297 DAG size of output: 77 [2020-11-07 06:28:20,334 WARN L194 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:28:22,401 WARN L194 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 294 DAG size of output: 80 [2020-11-07 06:28:24,449 WARN L194 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 257 DAG size of output: 90 [2020-11-07 06:28:26,686 WARN L194 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 291 DAG size of output: 87 [2020-11-07 06:28:28,325 WARN L194 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 250 DAG size of output: 75 [2020-11-07 06:28:30,054 WARN L194 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 258 DAG size of output: 78 [2020-11-07 06:28:31,763 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 249 DAG size of output: 77 [2020-11-07 06:28:33,514 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 254 DAG size of output: 75 [2020-11-07 06:28:35,292 WARN L194 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 254 DAG size of output: 87 [2020-11-07 06:28:37,002 WARN L194 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 249 DAG size of output: 77 [2020-11-07 06:28:39,212 WARN L194 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 258 DAG size of output: 86 [2020-11-07 06:28:41,010 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 252 DAG size of output: 86 [2020-11-07 06:28:42,759 WARN L194 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 254 DAG size of output: 81 [2020-11-07 06:28:44,387 WARN L194 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 247 DAG size of output: 76 [2020-11-07 06:28:46,303 WARN L194 SmtUtils]: Spent 1.90 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:28:48,212 WARN L194 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:28:50,547 WARN L194 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 296 DAG size of output: 85 [2020-11-07 06:28:52,737 WARN L194 SmtUtils]: Spent 2.18 s on a formula simplification. DAG size of input: 308 DAG size of output: 77 [2020-11-07 06:28:57,001 WARN L194 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:28:58,812 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 257 DAG size of output: 78 [2020-11-07 06:29:00,836 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 262 DAG size of output: 99 [2020-11-07 06:29:02,698 WARN L194 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 257 DAG size of output: 82 [2020-11-07 06:29:04,521 WARN L194 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 283 DAG size of output: 78 [2020-11-07 06:29:06,384 WARN L194 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 251 DAG size of output: 78 [2020-11-07 06:29:08,718 WARN L194 SmtUtils]: Spent 2.32 s on a formula simplification. DAG size of input: 310 DAG size of output: 80 [2020-11-07 06:29:11,317 WARN L194 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 260 DAG size of output: 93 [2020-11-07 06:29:15,612 WARN L194 SmtUtils]: Spent 4.28 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:19,882 WARN L194 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:20,941 WARN L194 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:29:25,269 WARN L194 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:27,083 WARN L194 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 252 DAG size of output: 79 [2020-11-07 06:29:29,053 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:29:33,223 WARN L194 SmtUtils]: Spent 4.15 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:29:37,560 WARN L194 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:39,433 WARN L194 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 282 DAG size of output: 76 [2020-11-07 06:29:43,773 WARN L194 SmtUtils]: Spent 4.32 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:48,102 WARN L194 SmtUtils]: Spent 4.31 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:29:50,122 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 295 DAG size of output: 77 [2020-11-07 06:29:52,003 WARN L194 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 265 DAG size of output: 77 [2020-11-07 06:29:54,088 WARN L194 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 257 DAG size of output: 90 [2020-11-07 06:29:55,790 WARN L194 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 253 DAG size of output: 79 [2020-11-07 06:29:57,540 WARN L194 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 252 DAG size of output: 83 [2020-11-07 06:29:59,649 WARN L194 SmtUtils]: Spent 2.09 s on a formula simplification. DAG size of input: 299 DAG size of output: 78 [2020-11-07 06:30:01,644 WARN L194 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:30:05,835 WARN L194 SmtUtils]: Spent 4.17 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:30:09,977 WARN L194 SmtUtils]: Spent 4.13 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:30:14,248 WARN L194 SmtUtils]: Spent 4.25 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:30:16,242 WARN L194 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:30:18,251 WARN L194 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:30:20,274 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:30:24,561 WARN L194 SmtUtils]: Spent 4.27 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:30:27,448 WARN L194 SmtUtils]: Spent 2.87 s on a formula simplification. DAG size of input: 336 DAG size of output: 87 [2020-11-07 06:30:31,908 WARN L194 SmtUtils]: Spent 4.44 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:30:33,711 WARN L194 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 252 DAG size of output: 81 [2020-11-07 06:30:35,564 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 247 DAG size of output: 77 [2020-11-07 06:30:40,058 WARN L194 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:30:44,568 WARN L194 SmtUtils]: Spent 4.49 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:30:45,686 WARN L194 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:30:47,537 WARN L194 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 261 DAG size of output: 79 [2020-11-07 06:30:49,697 WARN L194 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 256 DAG size of output: 90 [2020-11-07 06:30:52,041 WARN L194 SmtUtils]: Spent 2.33 s on a formula simplification. DAG size of input: 298 DAG size of output: 77 [2020-11-07 06:30:56,543 WARN L194 SmtUtils]: Spent 4.48 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:30:58,750 WARN L194 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 254 DAG size of output: 83 [2020-11-07 06:31:00,811 WARN L194 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 256 DAG size of output: 93 [2020-11-07 06:31:03,089 WARN L194 SmtUtils]: Spent 2.26 s on a formula simplification. DAG size of input: 258 DAG size of output: 78 [2020-11-07 06:31:07,653 WARN L194 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:12,219 WARN L194 SmtUtils]: Spent 4.55 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:14,242 WARN L194 SmtUtils]: Spent 2.01 s on a formula simplification. DAG size of input: 255 DAG size of output: 91 [2020-11-07 06:31:19,065 WARN L194 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:23,850 WARN L194 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:25,830 WARN L194 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 250 DAG size of output: 85 [2020-11-07 06:31:27,929 WARN L194 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 265 DAG size of output: 74 [2020-11-07 06:31:29,909 WARN L194 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 258 DAG size of output: 81 [2020-11-07 06:31:32,145 WARN L194 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 298 DAG size of output: 77 [2020-11-07 06:31:34,461 WARN L194 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 295 DAG size of output: 79 [2020-11-07 06:31:36,404 WARN L194 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 253 DAG size of output: 77 [2020-11-07 06:31:39,010 WARN L194 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 265 DAG size of output: 87 [2020-11-07 06:31:43,851 WARN L194 SmtUtils]: Spent 4.82 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:46,292 WARN L194 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 308 DAG size of output: 77 [2020-11-07 06:31:48,360 WARN L194 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 256 DAG size of output: 77 [2020-11-07 06:31:53,189 WARN L194 SmtUtils]: Spent 4.81 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:31:58,082 WARN L194 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:32:00,115 WARN L194 SmtUtils]: Spent 2.02 s on a formula simplification. DAG size of input: 255 DAG size of output: 82 [2020-11-07 06:32:05,018 WARN L194 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:32:07,155 WARN L194 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 288 DAG size of output: 76 [2020-11-07 06:32:09,115 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 247 DAG size of output: 75 [2020-11-07 06:32:13,970 WARN L194 SmtUtils]: Spent 4.84 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:32:16,055 WARN L194 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 254 DAG size of output: 82 [2020-11-07 06:32:18,379 WARN L194 SmtUtils]: Spent 2.30 s on a formula simplification. DAG size of input: 300 DAG size of output: 80 [2020-11-07 06:32:21,553 WARN L194 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 336 DAG size of output: 87 [2020-11-07 06:32:22,818 WARN L194 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:32:24,033 WARN L194 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:32:25,234 WARN L194 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 216 DAG size of output: 57 [2020-11-07 06:32:27,365 WARN L194 SmtUtils]: Spent 2.10 s on a formula simplification. DAG size of input: 282 DAG size of output: 76 [2020-11-07 06:32:29,587 WARN L194 SmtUtils]: Spent 2.21 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:32:34,356 WARN L194 SmtUtils]: Spent 4.75 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:32:36,609 WARN L194 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:32:41,324 WARN L194 SmtUtils]: Spent 4.70 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:32:43,896 WARN L194 SmtUtils]: Spent 2.56 s on a formula simplification. DAG size of input: 298 DAG size of output: 77 [2020-11-07 06:32:45,859 WARN L194 SmtUtils]: Spent 1.95 s on a formula simplification. DAG size of input: 265 DAG size of output: 81 [2020-11-07 06:32:48,266 WARN L194 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 295 DAG size of output: 79 [2020-11-07 06:32:50,763 WARN L194 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 300 DAG size of output: 76 [2020-11-07 06:32:55,717 WARN L194 SmtUtils]: Spent 4.94 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:33:00,615 WARN L194 SmtUtils]: Spent 4.88 s on a formula simplification. DAG size of input: 502 DAG size of output: 87 [2020-11-07 06:33:03,030 WARN L194 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 294 DAG size of output: 80 [2020-11-07 06:33:07,713 WARN L194 SmtUtils]: Spent 4.67 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:33:09,950 WARN L194 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 281 DAG size of output: 76 [2020-11-07 06:33:14,733 WARN L194 SmtUtils]: Spent 4.77 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:33:19,356 WARN L194 SmtUtils]: Spent 4.61 s on a formula simplification. DAG size of input: 439 DAG size of output: 74 [2020-11-07 06:33:24,171 WARN L194 SmtUtils]: Spent 4.80 s on a formula simplification. DAG size of input: 437 DAG size of output: 79 [2020-11-07 06:33:26,376 WARN L194 SmtUtils]: Spent 2.19 s on a formula simplification. DAG size of input: 281 DAG size of output: 76