/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 19:32:32,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 19:32:32,103 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 19:32:32,143 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 19:32:32,143 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 19:32:32,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 19:32:32,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 19:32:32,160 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 19:32:32,161 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 19:32:32,162 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 19:32:32,163 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 19:32:32,164 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 19:32:32,164 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 19:32:32,165 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 19:32:32,166 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 19:32:32,168 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 19:32:32,170 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 19:32:32,172 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 19:32:32,173 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 19:32:32,179 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 19:32:32,182 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 19:32:32,183 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 19:32:32,185 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 19:32:32,186 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 19:32:32,190 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 19:32:32,190 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 19:32:32,190 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 19:32:32,194 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 19:32:32,194 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 19:32:32,196 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 19:32:32,196 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 19:32:32,197 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 19:32:32,198 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 19:32:32,198 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 19:32:32,199 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 19:32:32,200 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 19:32:32,200 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 19:32:32,200 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 19:32:32,200 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 19:32:32,201 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 19:32:32,203 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 19:32:32,203 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 19:32:32,221 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 19:32:32,221 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 19:32:32,223 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 19:32:32,223 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 19:32:32,223 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 19:32:32,223 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 19:32:32,223 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 19:32:32,224 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 19:32:32,224 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 19:32:32,224 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 19:32:32,225 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 19:32:32,225 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 19:32:32,225 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 19:32:32,226 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 19:32:32,226 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 19:32:32,226 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 19:32:32,226 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 19:32:32,227 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 19:32:32,227 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 19:32:32,227 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 19:32:32,227 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 19:32:32,227 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 19:32:32,228 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 19:32:32,490 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 19:32:32,502 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 19:32:32,506 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 19:32:32,507 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 19:32:32,507 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 19:32:32,508 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-08-22 19:32:32,569 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d179fc92/b197a7f73b04497bafdd40f8cd645156/FLAG8cf7fce87 [2020-08-22 19:32:33,117 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 19:32:33,118 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem10_label44.c [2020-08-22 19:32:33,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d179fc92/b197a7f73b04497bafdd40f8cd645156/FLAG8cf7fce87 [2020-08-22 19:32:33,447 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d179fc92/b197a7f73b04497bafdd40f8cd645156 [2020-08-22 19:32:33,455 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 19:32:33,457 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 19:32:33,458 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 19:32:33,459 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 19:32:33,462 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 19:32:33,463 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:32:33" (1/1) ... [2020-08-22 19:32:33,466 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4a7edd8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:33, skipping insertion in model container [2020-08-22 19:32:33,466 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 07:32:33" (1/1) ... [2020-08-22 19:32:33,473 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 19:32:33,526 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 19:32:34,072 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:32:34,075 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 19:32:34,189 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 19:32:34,211 INFO L208 MainTranslator]: Completed translation [2020-08-22 19:32:34,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34 WrapperNode [2020-08-22 19:32:34,212 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 19:32:34,212 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 19:32:34,212 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 19:32:34,212 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 19:32:34,222 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,222 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,239 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,240 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,276 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,298 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (1/1) ... [2020-08-22 19:32:34,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 19:32:34,309 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 19:32:34,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 19:32:34,309 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 19:32:34,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (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 [2020-08-22 19:32:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 19:32:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 19:32:34,381 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 19:32:34,382 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 19:32:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 19:32:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 19:32:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 19:32:34,382 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 19:32:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 19:32:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 19:32:34,383 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 19:32:35,737 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 19:32:35,737 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 19:32:35,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:32:35 BoogieIcfgContainer [2020-08-22 19:32:35,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 19:32:35,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 19:32:35,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 19:32:35,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 19:32:35,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 07:32:33" (1/3) ... [2020-08-22 19:32:35,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b44c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:32:35, skipping insertion in model container [2020-08-22 19:32:35,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 07:32:34" (2/3) ... [2020-08-22 19:32:35,751 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11b44c29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 07:32:35, skipping insertion in model container [2020-08-22 19:32:35,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 07:32:35" (3/3) ... [2020-08-22 19:32:35,753 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label44.c [2020-08-22 19:32:35,763 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 19:32:35,773 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 19:32:35,787 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 19:32:35,809 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 19:32:35,810 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 19:32:35,810 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 19:32:35,810 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 19:32:35,810 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 19:32:35,810 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 19:32:35,811 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 19:32:35,811 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 19:32:35,832 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states. [2020-08-22 19:32:35,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2020-08-22 19:32:35,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:35,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:32:35,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:35,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:35,855 INFO L82 PathProgramCache]: Analyzing trace with hash 2145887279, now seen corresponding path program 1 times [2020-08-22 19:32:35,863 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:35,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118990940] [2020-08-22 19:32:35,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:35,929 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:36,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:36,287 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:36,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:36,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:36,331 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118990940] [2020-08-22 19:32:36,333 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:36,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 19:32:36,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370999719] [2020-08-22 19:32:36,339 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 19:32:36,339 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:36,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 19:32:36,354 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 19:32:36,356 INFO L87 Difference]: Start difference. First operand 456 states. Second operand 5 states. [2020-08-22 19:32:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:38,907 INFO L93 Difference]: Finished difference Result 1246 states and 1816 transitions. [2020-08-22 19:32:38,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 19:32:38,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 76 [2020-08-22 19:32:38,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:38,943 INFO L225 Difference]: With dead ends: 1246 [2020-08-22 19:32:38,944 INFO L226 Difference]: Without dead ends: 727 [2020-08-22 19:32:38,957 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:32:38,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2020-08-22 19:32:39,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 697. [2020-08-22 19:32:39,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 697 states. [2020-08-22 19:32:39,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 697 states to 697 states and 849 transitions. [2020-08-22 19:32:39,107 INFO L78 Accepts]: Start accepts. Automaton has 697 states and 849 transitions. Word has length 76 [2020-08-22 19:32:39,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:39,108 INFO L479 AbstractCegarLoop]: Abstraction has 697 states and 849 transitions. [2020-08-22 19:32:39,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 19:32:39,108 INFO L276 IsEmpty]: Start isEmpty. Operand 697 states and 849 transitions. [2020-08-22 19:32:39,115 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-08-22 19:32:39,116 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:39,116 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, 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] [2020-08-22 19:32:39,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 19:32:39,117 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:39,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:39,117 INFO L82 PathProgramCache]: Analyzing trace with hash -430892963, now seen corresponding path program 1 times [2020-08-22 19:32:39,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:39,118 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1267024330] [2020-08-22 19:32:39,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:39,176 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:39,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:39,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:39,494 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:39,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:39,669 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:39,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1267024330] [2020-08-22 19:32:39,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:39,671 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:32:39,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32117082] [2020-08-22 19:32:39,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:32:39,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:39,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:32:39,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:32:39,678 INFO L87 Difference]: Start difference. First operand 697 states and 849 transitions. Second operand 8 states. [2020-08-22 19:32:42,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:42,834 INFO L93 Difference]: Finished difference Result 2464 states and 3167 transitions. [2020-08-22 19:32:42,835 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 19:32:42,835 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-08-22 19:32:42,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:42,861 INFO L225 Difference]: With dead ends: 2464 [2020-08-22 19:32:42,862 INFO L226 Difference]: Without dead ends: 1782 [2020-08-22 19:32:42,868 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2020-08-22 19:32:42,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1782 states. [2020-08-22 19:32:43,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1782 to 1667. [2020-08-22 19:32:43,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1667 states. [2020-08-22 19:32:43,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1667 states to 1667 states and 2089 transitions. [2020-08-22 19:32:43,095 INFO L78 Accepts]: Start accepts. Automaton has 1667 states and 2089 transitions. Word has length 165 [2020-08-22 19:32:43,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:43,098 INFO L479 AbstractCegarLoop]: Abstraction has 1667 states and 2089 transitions. [2020-08-22 19:32:43,098 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:32:43,098 INFO L276 IsEmpty]: Start isEmpty. Operand 1667 states and 2089 transitions. [2020-08-22 19:32:43,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-08-22 19:32:43,112 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:43,112 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:32:43,113 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 19:32:43,113 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:43,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:43,113 INFO L82 PathProgramCache]: Analyzing trace with hash 1682807623, now seen corresponding path program 1 times [2020-08-22 19:32:43,114 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:43,114 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2012075291] [2020-08-22 19:32:43,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:43,170 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:43,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:43,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:43,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:43,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:43,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:43,460 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2012075291] [2020-08-22 19:32:43,460 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:43,460 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 19:32:43,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [236327395] [2020-08-22 19:32:43,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 19:32:43,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:43,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 19:32:43,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 19:32:43,463 INFO L87 Difference]: Start difference. First operand 1667 states and 2089 transitions. Second operand 8 states. [2020-08-22 19:32:45,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:45,683 INFO L93 Difference]: Finished difference Result 4069 states and 5422 transitions. [2020-08-22 19:32:45,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 19:32:45,689 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 208 [2020-08-22 19:32:45,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:45,718 INFO L225 Difference]: With dead ends: 4069 [2020-08-22 19:32:45,719 INFO L226 Difference]: Without dead ends: 2417 [2020-08-22 19:32:45,727 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-08-22 19:32:45,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2417 states. [2020-08-22 19:32:46,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2417 to 2303. [2020-08-22 19:32:46,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2303 states. [2020-08-22 19:32:46,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2303 states to 2303 states and 2900 transitions. [2020-08-22 19:32:46,025 INFO L78 Accepts]: Start accepts. Automaton has 2303 states and 2900 transitions. Word has length 208 [2020-08-22 19:32:46,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:46,029 INFO L479 AbstractCegarLoop]: Abstraction has 2303 states and 2900 transitions. [2020-08-22 19:32:46,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 19:32:46,029 INFO L276 IsEmpty]: Start isEmpty. Operand 2303 states and 2900 transitions. [2020-08-22 19:32:46,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2020-08-22 19:32:46,034 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:46,034 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, 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] [2020-08-22 19:32:46,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 19:32:46,035 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:46,035 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:46,035 INFO L82 PathProgramCache]: Analyzing trace with hash -1390539425, now seen corresponding path program 1 times [2020-08-22 19:32:46,036 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:46,036 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [282200044] [2020-08-22 19:32:46,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:46,084 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:46,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:46,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:46,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:46,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:46,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:46,405 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [282200044] [2020-08-22 19:32:46,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:46,405 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:32:46,406 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892440944] [2020-08-22 19:32:46,407 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:32:46,408 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:46,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:32:46,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:32:46,409 INFO L87 Difference]: Start difference. First operand 2303 states and 2900 transitions. Second operand 7 states. [2020-08-22 19:32:49,097 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:49,097 INFO L93 Difference]: Finished difference Result 3985 states and 5163 transitions. [2020-08-22 19:32:49,098 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-08-22 19:32:49,098 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 222 [2020-08-22 19:32:49,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:49,126 INFO L225 Difference]: With dead ends: 3985 [2020-08-22 19:32:49,126 INFO L226 Difference]: Without dead ends: 3983 [2020-08-22 19:32:49,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:32:49,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3983 states. [2020-08-22 19:32:49,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3983 to 3067. [2020-08-22 19:32:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3067 states. [2020-08-22 19:32:49,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3067 states to 3067 states and 3950 transitions. [2020-08-22 19:32:49,418 INFO L78 Accepts]: Start accepts. Automaton has 3067 states and 3950 transitions. Word has length 222 [2020-08-22 19:32:49,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:49,419 INFO L479 AbstractCegarLoop]: Abstraction has 3067 states and 3950 transitions. [2020-08-22 19:32:49,419 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:32:49,419 INFO L276 IsEmpty]: Start isEmpty. Operand 3067 states and 3950 transitions. [2020-08-22 19:32:49,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-08-22 19:32:49,424 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:49,425 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:32:49,425 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 19:32:49,425 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:49,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:49,426 INFO L82 PathProgramCache]: Analyzing trace with hash -1504222835, now seen corresponding path program 1 times [2020-08-22 19:32:49,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:49,426 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [676256494] [2020-08-22 19:32:49,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:49,454 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:49,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:49,624 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:49,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:49,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:49,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:49,681 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 19:32:49,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:49,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:49,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [676256494] [2020-08-22 19:32:49,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:49,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-08-22 19:32:49,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160694191] [2020-08-22 19:32:49,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-08-22 19:32:49,845 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:49,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-08-22 19:32:49,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:32:49,846 INFO L87 Difference]: Start difference. First operand 3067 states and 3950 transitions. Second operand 10 states. [2020-08-22 19:32:54,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:54,293 INFO L93 Difference]: Finished difference Result 7409 states and 9548 transitions. [2020-08-22 19:32:54,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 19:32:54,294 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 244 [2020-08-22 19:32:54,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:54,323 INFO L225 Difference]: With dead ends: 7409 [2020-08-22 19:32:54,324 INFO L226 Difference]: Without dead ends: 4357 [2020-08-22 19:32:54,336 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 116 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=136, Invalid=464, Unknown=0, NotChecked=0, Total=600 [2020-08-22 19:32:54,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4357 states. [2020-08-22 19:32:54,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4357 to 3423. [2020-08-22 19:32:54,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3423 states. [2020-08-22 19:32:54,698 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3423 states to 3423 states and 4237 transitions. [2020-08-22 19:32:54,699 INFO L78 Accepts]: Start accepts. Automaton has 3423 states and 4237 transitions. Word has length 244 [2020-08-22 19:32:54,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:54,700 INFO L479 AbstractCegarLoop]: Abstraction has 3423 states and 4237 transitions. [2020-08-22 19:32:54,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-08-22 19:32:54,700 INFO L276 IsEmpty]: Start isEmpty. Operand 3423 states and 4237 transitions. [2020-08-22 19:32:54,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2020-08-22 19:32:54,712 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:54,713 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, 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, 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] [2020-08-22 19:32:54,713 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 19:32:54,713 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:54,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:54,714 INFO L82 PathProgramCache]: Analyzing trace with hash 2056188943, now seen corresponding path program 1 times [2020-08-22 19:32:54,714 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:54,715 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1794844530] [2020-08-22 19:32:54,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:54,740 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:54,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:54,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:54,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:54,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:54,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:54,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 19:32:54,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:54,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-08-22 19:32:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:55,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:55,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1794844530] [2020-08-22 19:32:55,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:55,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:32:55,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55198600] [2020-08-22 19:32:55,061 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:32:55,061 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:55,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:32:55,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:32:55,070 INFO L87 Difference]: Start difference. First operand 3423 states and 4237 transitions. Second operand 7 states. [2020-08-22 19:32:57,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:32:57,360 INFO L93 Difference]: Finished difference Result 7031 states and 8729 transitions. [2020-08-22 19:32:57,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 19:32:57,360 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 327 [2020-08-22 19:32:57,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:32:57,384 INFO L225 Difference]: With dead ends: 7031 [2020-08-22 19:32:57,384 INFO L226 Difference]: Without dead ends: 3623 [2020-08-22 19:32:57,395 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:32:57,399 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3623 states. [2020-08-22 19:32:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3623 to 3591. [2020-08-22 19:32:57,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3591 states. [2020-08-22 19:32:57,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3591 states to 3591 states and 4376 transitions. [2020-08-22 19:32:57,945 INFO L78 Accepts]: Start accepts. Automaton has 3591 states and 4376 transitions. Word has length 327 [2020-08-22 19:32:57,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:32:57,946 INFO L479 AbstractCegarLoop]: Abstraction has 3591 states and 4376 transitions. [2020-08-22 19:32:57,946 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:32:57,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3591 states and 4376 transitions. [2020-08-22 19:32:57,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-08-22 19:32:57,961 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:32:57,962 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, 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, 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] [2020-08-22 19:32:57,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 19:32:57,962 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:32:57,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:32:57,963 INFO L82 PathProgramCache]: Analyzing trace with hash -1129363078, now seen corresponding path program 1 times [2020-08-22 19:32:57,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:32:57,963 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [150843354] [2020-08-22 19:32:57,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:32:57,993 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:32:58,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:58,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:32:58,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:58,105 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:32:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:58,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2020-08-22 19:32:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:58,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-08-22 19:32:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:32:58,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:32:58,309 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [150843354] [2020-08-22 19:32:58,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:32:58,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:32:58,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [637672673] [2020-08-22 19:32:58,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:32:58,311 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:32:58,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:32:58,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:32:58,312 INFO L87 Difference]: Start difference. First operand 3591 states and 4376 transitions. Second operand 7 states. [2020-08-22 19:33:00,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:00,106 INFO L93 Difference]: Finished difference Result 7348 states and 8960 transitions. [2020-08-22 19:33:00,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-08-22 19:33:00,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 334 [2020-08-22 19:33:00,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:00,130 INFO L225 Difference]: With dead ends: 7348 [2020-08-22 19:33:00,131 INFO L226 Difference]: Without dead ends: 3772 [2020-08-22 19:33:00,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-08-22 19:33:00,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3772 states. [2020-08-22 19:33:00,402 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3772 to 3149. [2020-08-22 19:33:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3149 states. [2020-08-22 19:33:00,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3149 states to 3149 states and 3768 transitions. [2020-08-22 19:33:00,407 INFO L78 Accepts]: Start accepts. Automaton has 3149 states and 3768 transitions. Word has length 334 [2020-08-22 19:33:00,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:00,407 INFO L479 AbstractCegarLoop]: Abstraction has 3149 states and 3768 transitions. [2020-08-22 19:33:00,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:33:00,408 INFO L276 IsEmpty]: Start isEmpty. Operand 3149 states and 3768 transitions. [2020-08-22 19:33:00,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2020-08-22 19:33:00,420 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:00,420 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, 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, 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] [2020-08-22 19:33:00,421 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 19:33:00,421 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:00,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:00,421 INFO L82 PathProgramCache]: Analyzing trace with hash 1318397123, now seen corresponding path program 1 times [2020-08-22 19:33:00,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:00,422 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1864016472] [2020-08-22 19:33:00,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:00,447 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:00,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:00,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:00,563 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:00,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:00,625 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-08-22 19:33:00,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:00,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-08-22 19:33:00,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:01,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:01,067 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1864016472] [2020-08-22 19:33:01,067 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:01,067 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 19:33:01,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367195649] [2020-08-22 19:33:01,068 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 19:33:01,068 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:01,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 19:33:01,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 19:33:01,069 INFO L87 Difference]: Start difference. First operand 3149 states and 3768 transitions. Second operand 11 states. [2020-08-22 19:33:04,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:04,786 INFO L93 Difference]: Finished difference Result 7355 states and 8941 transitions. [2020-08-22 19:33:04,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2020-08-22 19:33:04,787 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 339 [2020-08-22 19:33:04,787 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:04,809 INFO L225 Difference]: With dead ends: 7355 [2020-08-22 19:33:04,809 INFO L226 Difference]: Without dead ends: 4371 [2020-08-22 19:33:04,818 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 182 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=164, Invalid=648, Unknown=0, NotChecked=0, Total=812 [2020-08-22 19:33:04,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2020-08-22 19:33:05,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4122. [2020-08-22 19:33:05,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4122 states. [2020-08-22 19:33:05,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4122 states to 4122 states and 4977 transitions. [2020-08-22 19:33:05,340 INFO L78 Accepts]: Start accepts. Automaton has 4122 states and 4977 transitions. Word has length 339 [2020-08-22 19:33:05,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:05,342 INFO L479 AbstractCegarLoop]: Abstraction has 4122 states and 4977 transitions. [2020-08-22 19:33:05,343 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 19:33:05,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4122 states and 4977 transitions. [2020-08-22 19:33:05,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2020-08-22 19:33:05,355 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:05,355 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:33:05,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 19:33:05,356 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:05,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:05,356 INFO L82 PathProgramCache]: Analyzing trace with hash 1305997719, now seen corresponding path program 1 times [2020-08-22 19:33:05,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:05,357 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [804593052] [2020-08-22 19:33:05,357 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:05,389 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:05,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:05,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:05,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:05,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:05,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:05,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-22 19:33:05,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:05,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 258 [2020-08-22 19:33:05,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:05,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:06,000 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [804593052] [2020-08-22 19:33:06,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:06,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-08-22 19:33:06,005 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588626861] [2020-08-22 19:33:06,006 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 19:33:06,006 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:06,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 19:33:06,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 19:33:06,007 INFO L87 Difference]: Start difference. First operand 4122 states and 4977 transitions. Second operand 11 states. [2020-08-22 19:33:10,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:10,368 INFO L93 Difference]: Finished difference Result 10649 states and 12967 transitions. [2020-08-22 19:33:10,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-08-22 19:33:10,369 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 402 [2020-08-22 19:33:10,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:10,392 INFO L225 Difference]: With dead ends: 10649 [2020-08-22 19:33:10,392 INFO L226 Difference]: Without dead ends: 4615 [2020-08-22 19:33:10,407 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=93, Invalid=327, Unknown=0, NotChecked=0, Total=420 [2020-08-22 19:33:10,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4615 states. [2020-08-22 19:33:11,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4615 to 3552. [2020-08-22 19:33:11,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3552 states. [2020-08-22 19:33:11,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 3945 transitions. [2020-08-22 19:33:11,066 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 3945 transitions. Word has length 402 [2020-08-22 19:33:11,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:11,066 INFO L479 AbstractCegarLoop]: Abstraction has 3552 states and 3945 transitions. [2020-08-22 19:33:11,067 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 19:33:11,067 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 3945 transitions. [2020-08-22 19:33:11,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 459 [2020-08-22 19:33:11,076 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:11,076 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, 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, 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] [2020-08-22 19:33:11,077 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 19:33:11,077 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:11,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:11,077 INFO L82 PathProgramCache]: Analyzing trace with hash -1447415977, now seen corresponding path program 1 times [2020-08-22 19:33:11,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:11,078 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2138936893] [2020-08-22 19:33:11,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:11,106 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,323 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:11,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:11,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-08-22 19:33:11,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2020-08-22 19:33:11,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 314 [2020-08-22 19:33:11,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:11,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:11,846 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2138936893] [2020-08-22 19:33:11,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:11,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2020-08-22 19:33:11,847 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383769767] [2020-08-22 19:33:11,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-08-22 19:33:11,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:11,848 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-08-22 19:33:11,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=196, Unknown=0, NotChecked=0, Total=240 [2020-08-22 19:33:11,848 INFO L87 Difference]: Start difference. First operand 3552 states and 3945 transitions. Second operand 16 states. [2020-08-22 19:33:17,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:17,549 INFO L93 Difference]: Finished difference Result 9207 states and 10393 transitions. [2020-08-22 19:33:17,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-08-22 19:33:17,550 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 458 [2020-08-22 19:33:17,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:17,574 INFO L225 Difference]: With dead ends: 9207 [2020-08-22 19:33:17,575 INFO L226 Difference]: Without dead ends: 5669 [2020-08-22 19:33:17,585 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 334 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=299, Invalid=1107, Unknown=0, NotChecked=0, Total=1406 [2020-08-22 19:33:17,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5669 states. [2020-08-22 19:33:18,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5669 to 4637. [2020-08-22 19:33:18,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4637 states. [2020-08-22 19:33:18,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4637 states to 4637 states and 5203 transitions. [2020-08-22 19:33:18,905 INFO L78 Accepts]: Start accepts. Automaton has 4637 states and 5203 transitions. Word has length 458 [2020-08-22 19:33:18,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:18,906 INFO L479 AbstractCegarLoop]: Abstraction has 4637 states and 5203 transitions. [2020-08-22 19:33:18,906 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-08-22 19:33:18,906 INFO L276 IsEmpty]: Start isEmpty. Operand 4637 states and 5203 transitions. [2020-08-22 19:33:18,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 477 [2020-08-22 19:33:18,918 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:18,919 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, 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, 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] [2020-08-22 19:33:18,920 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 19:33:18,920 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:18,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:18,920 INFO L82 PathProgramCache]: Analyzing trace with hash -968828418, now seen corresponding path program 1 times [2020-08-22 19:33:18,921 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:18,921 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1114174475] [2020-08-22 19:33:18,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:18,948 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:19,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:19,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:19,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,243 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 19:33:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 19:33:19,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-08-22 19:33:19,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:19,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:19,649 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1114174475] [2020-08-22 19:33:19,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:19,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2020-08-22 19:33:19,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176716086] [2020-08-22 19:33:19,650 INFO L459 AbstractCegarLoop]: Interpolant automaton has 17 states [2020-08-22 19:33:19,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:19,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2020-08-22 19:33:19,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2020-08-22 19:33:19,651 INFO L87 Difference]: Start difference. First operand 4637 states and 5203 transitions. Second operand 17 states. [2020-08-22 19:33:26,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:26,651 INFO L93 Difference]: Finished difference Result 13156 states and 14911 transitions. [2020-08-22 19:33:26,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2020-08-22 19:33:26,651 INFO L78 Accepts]: Start accepts. Automaton has 17 states. Word has length 476 [2020-08-22 19:33:26,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:26,686 INFO L225 Difference]: With dead ends: 13156 [2020-08-22 19:33:26,686 INFO L226 Difference]: Without dead ends: 8689 [2020-08-22 19:33:26,699 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1233 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1073, Invalid=3087, Unknown=0, NotChecked=0, Total=4160 [2020-08-22 19:33:26,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8689 states. [2020-08-22 19:33:27,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8689 to 7187. [2020-08-22 19:33:27,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7187 states. [2020-08-22 19:33:27,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7187 states to 7187 states and 8165 transitions. [2020-08-22 19:33:27,508 INFO L78 Accepts]: Start accepts. Automaton has 7187 states and 8165 transitions. Word has length 476 [2020-08-22 19:33:27,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:27,509 INFO L479 AbstractCegarLoop]: Abstraction has 7187 states and 8165 transitions. [2020-08-22 19:33:27,509 INFO L480 AbstractCegarLoop]: Interpolant automaton has 17 states. [2020-08-22 19:33:27,509 INFO L276 IsEmpty]: Start isEmpty. Operand 7187 states and 8165 transitions. [2020-08-22 19:33:27,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 492 [2020-08-22 19:33:27,523 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:27,524 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:33:27,524 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 19:33:27,524 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:27,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:27,525 INFO L82 PathProgramCache]: Analyzing trace with hash -1319219488, now seen corresponding path program 1 times [2020-08-22 19:33:27,525 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:27,526 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103759779] [2020-08-22 19:33:27,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:27,551 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:27,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,666 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:27,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:27,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,710 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-22 19:33:27,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2020-08-22 19:33:27,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 347 [2020-08-22 19:33:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:27,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:27,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103759779] [2020-08-22 19:33:27,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:27,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:33:27,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197295958] [2020-08-22 19:33:27,986 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:33:27,986 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:27,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:33:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:33:27,987 INFO L87 Difference]: Start difference. First operand 7187 states and 8165 transitions. Second operand 7 states. [2020-08-22 19:33:30,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:30,746 INFO L93 Difference]: Finished difference Result 14841 states and 16969 transitions. [2020-08-22 19:33:30,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 19:33:30,746 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 491 [2020-08-22 19:33:30,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:30,779 INFO L225 Difference]: With dead ends: 14841 [2020-08-22 19:33:30,779 INFO L226 Difference]: Without dead ends: 7824 [2020-08-22 19:33:30,795 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-08-22 19:33:30,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7824 states. [2020-08-22 19:33:31,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7824 to 7174. [2020-08-22 19:33:31,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7174 states. [2020-08-22 19:33:31,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7174 states to 7174 states and 8097 transitions. [2020-08-22 19:33:31,710 INFO L78 Accepts]: Start accepts. Automaton has 7174 states and 8097 transitions. Word has length 491 [2020-08-22 19:33:31,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:31,710 INFO L479 AbstractCegarLoop]: Abstraction has 7174 states and 8097 transitions. [2020-08-22 19:33:31,710 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:33:31,710 INFO L276 IsEmpty]: Start isEmpty. Operand 7174 states and 8097 transitions. [2020-08-22 19:33:31,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 496 [2020-08-22 19:33:31,723 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:31,724 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, 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, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:33:31,724 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 19:33:31,724 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:31,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:31,724 INFO L82 PathProgramCache]: Analyzing trace with hash -1638987856, now seen corresponding path program 1 times [2020-08-22 19:33:31,724 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:31,724 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128996526] [2020-08-22 19:33:31,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:31,742 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:31,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:31,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:31,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:31,861 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:31,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:31,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-08-22 19:33:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:31,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-08-22 19:33:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:31,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 351 [2020-08-22 19:33:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:32,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:32,101 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [128996526] [2020-08-22 19:33:32,101 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:32,101 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-08-22 19:33:32,102 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406857876] [2020-08-22 19:33:32,102 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 19:33:32,102 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:32,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 19:33:32,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 19:33:32,103 INFO L87 Difference]: Start difference. First operand 7174 states and 8097 transitions. Second operand 7 states. [2020-08-22 19:33:34,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:34,479 INFO L93 Difference]: Finished difference Result 13552 states and 15350 transitions. [2020-08-22 19:33:34,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 19:33:34,479 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 495 [2020-08-22 19:33:34,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:34,501 INFO L225 Difference]: With dead ends: 13552 [2020-08-22 19:33:34,501 INFO L226 Difference]: Without dead ends: 6548 [2020-08-22 19:33:34,514 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-08-22 19:33:34,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6548 states. [2020-08-22 19:33:35,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6548 to 6376. [2020-08-22 19:33:35,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6376 states. [2020-08-22 19:33:35,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6376 states to 6376 states and 6966 transitions. [2020-08-22 19:33:35,249 INFO L78 Accepts]: Start accepts. Automaton has 6376 states and 6966 transitions. Word has length 495 [2020-08-22 19:33:35,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:35,249 INFO L479 AbstractCegarLoop]: Abstraction has 6376 states and 6966 transitions. [2020-08-22 19:33:35,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 19:33:35,249 INFO L276 IsEmpty]: Start isEmpty. Operand 6376 states and 6966 transitions. [2020-08-22 19:33:35,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2020-08-22 19:33:35,259 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:35,259 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 19:33:35,260 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 19:33:35,260 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:35,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:35,260 INFO L82 PathProgramCache]: Analyzing trace with hash -2093968034, now seen corresponding path program 1 times [2020-08-22 19:33:35,260 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:35,261 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1855479291] [2020-08-22 19:33:35,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:35,280 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:35,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:35,462 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:35,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:35,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:35,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:35,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 19:33:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2020-08-22 19:33:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:35,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-08-22 19:33:35,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:36,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:36,257 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1855479291] [2020-08-22 19:33:36,257 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:36,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2020-08-22 19:33:36,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445903739] [2020-08-22 19:33:36,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 19 states [2020-08-22 19:33:36,258 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:36,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2020-08-22 19:33:36,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2020-08-22 19:33:36,259 INFO L87 Difference]: Start difference. First operand 6376 states and 6966 transitions. Second operand 19 states. [2020-08-22 19:33:43,093 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:43,093 INFO L93 Difference]: Finished difference Result 16099 states and 17700 transitions. [2020-08-22 19:33:43,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-08-22 19:33:43,094 INFO L78 Accepts]: Start accepts. Automaton has 19 states. Word has length 520 [2020-08-22 19:33:43,095 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:43,122 INFO L225 Difference]: With dead ends: 16099 [2020-08-22 19:33:43,123 INFO L226 Difference]: Without dead ends: 9893 [2020-08-22 19:33:43,132 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 233 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=229, Invalid=763, Unknown=0, NotChecked=0, Total=992 [2020-08-22 19:33:43,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9893 states. [2020-08-22 19:33:44,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9893 to 8396. [2020-08-22 19:33:44,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8396 states. [2020-08-22 19:33:44,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8396 states to 8396 states and 9238 transitions. [2020-08-22 19:33:44,139 INFO L78 Accepts]: Start accepts. Automaton has 8396 states and 9238 transitions. Word has length 520 [2020-08-22 19:33:44,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:44,140 INFO L479 AbstractCegarLoop]: Abstraction has 8396 states and 9238 transitions. [2020-08-22 19:33:44,140 INFO L480 AbstractCegarLoop]: Interpolant automaton has 19 states. [2020-08-22 19:33:44,140 INFO L276 IsEmpty]: Start isEmpty. Operand 8396 states and 9238 transitions. [2020-08-22 19:33:44,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 527 [2020-08-22 19:33:44,152 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 19:33:44,152 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, 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, 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] [2020-08-22 19:33:44,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 19:33:44,152 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 19:33:44,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 19:33:44,153 INFO L82 PathProgramCache]: Analyzing trace with hash 185982704, now seen corresponding path program 1 times [2020-08-22 19:33:44,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 19:33:44,153 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [583330678] [2020-08-22 19:33:44,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 19:33:44,181 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 19:33:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:44,367 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 19:33:44,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:44,401 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 19:33:44,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:44,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2020-08-22 19:33:44,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:44,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 249 [2020-08-22 19:33:44,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:44,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 19:33:44,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 19:33:45,074 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 19:33:45,075 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [583330678] [2020-08-22 19:33:45,075 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 19:33:45,075 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [] total 20 [2020-08-22 19:33:45,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945948816] [2020-08-22 19:33:45,076 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-08-22 19:33:45,076 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 19:33:45,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-08-22 19:33:45,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=293, Unknown=0, NotChecked=0, Total=380 [2020-08-22 19:33:45,077 INFO L87 Difference]: Start difference. First operand 8396 states and 9238 transitions. Second operand 20 states. [2020-08-22 19:33:53,238 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 19:33:53,239 INFO L93 Difference]: Finished difference Result 18065 states and 19880 transitions. [2020-08-22 19:33:53,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-08-22 19:33:53,240 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 526 [2020-08-22 19:33:53,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 19:33:53,248 INFO L225 Difference]: With dead ends: 18065 [2020-08-22 19:33:53,248 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 19:33:53,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 983 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=785, Invalid=2637, Unknown=0, NotChecked=0, Total=3422 [2020-08-22 19:33:53,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 19:33:53,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 19:33:53,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 19:33:53,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 19:33:53,267 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 526 [2020-08-22 19:33:53,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 19:33:53,267 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 19:33:53,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-08-22 19:33:53,267 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 19:33:53,268 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 19:33:53,268 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-08-22 19:33:53,269 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 19:33:56,827 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 57 [2020-08-22 19:34:01,183 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:34:01,617 WARN L193 SmtUtils]: Spent 431.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:34:01,947 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:34:04,902 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-08-22 19:34:08,720 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 64 [2020-08-22 19:34:12,110 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:34:12,585 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2020-08-22 19:34:16,722 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-08-22 19:34:21,091 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-08-22 19:34:25,642 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-08-22 19:34:30,653 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 81 [2020-08-22 19:34:35,171 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 66 [2020-08-22 19:34:49,384 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 63 [2020-08-22 19:34:54,018 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 69 [2020-08-22 19:34:57,262 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:35:03,543 WARN L193 SmtUtils]: Spent 716.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2020-08-22 19:35:28,717 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 315 [2020-08-22 19:35:29,034 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 315 [2020-08-22 19:35:29,354 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 411 DAG size of output: 315 [2020-08-22 19:35:29,703 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:36:05,472 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 412 DAG size of output: 316 [2020-08-22 19:36:14,060 WARN L193 SmtUtils]: Spent 1.34 s on a formula simplification. DAG size of input: 315 DAG size of output: 66 [2020-08-22 19:36:15,573 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 318 DAG size of output: 76 [2020-08-22 19:36:17,073 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 322 DAG size of output: 63 [2020-08-22 19:36:18,480 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 298 DAG size of output: 64 [2020-08-22 19:36:19,730 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 302 DAG size of output: 65 [2020-08-22 19:36:21,066 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 311 DAG size of output: 62 [2020-08-22 19:36:24,004 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:36:25,403 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 311 DAG size of output: 67 [2020-08-22 19:36:26,961 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 323 DAG size of output: 74 [2020-08-22 19:36:28,565 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 316 DAG size of output: 73 [2020-08-22 19:36:31,487 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:36:34,433 WARN L193 SmtUtils]: Spent 2.93 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:36:36,088 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 315 DAG size of output: 78 [2020-08-22 19:36:37,524 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 324 DAG size of output: 75 [2020-08-22 19:36:38,915 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 319 DAG size of output: 69 [2020-08-22 19:36:40,508 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 342 DAG size of output: 62 [2020-08-22 19:36:42,231 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 344 DAG size of output: 76 [2020-08-22 19:36:43,887 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 325 DAG size of output: 78 [2020-08-22 19:36:45,386 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 315 DAG size of output: 73 [2020-08-22 19:36:47,181 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 365 DAG size of output: 72 [2020-08-22 19:36:48,520 WARN L193 SmtUtils]: Spent 1.33 s on a formula simplification. DAG size of input: 305 DAG size of output: 60 [2020-08-22 19:36:50,081 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 327 DAG size of output: 62 [2020-08-22 19:36:51,639 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 319 DAG size of output: 73 [2020-08-22 19:36:53,074 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 310 DAG size of output: 66 [2020-08-22 19:36:54,817 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 347 DAG size of output: 69 [2020-08-22 19:36:56,484 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 317 DAG size of output: 80 [2020-08-22 19:36:57,877 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 301 DAG size of output: 53 [2020-08-22 19:36:59,272 WARN L193 SmtUtils]: Spent 1.39 s on a formula simplification. DAG size of input: 301 DAG size of output: 53 [2020-08-22 19:37:00,672 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 301 DAG size of output: 53 [2020-08-22 19:37:02,296 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 313 DAG size of output: 83 [2020-08-22 19:37:03,916 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 342 DAG size of output: 68 [2020-08-22 19:37:06,872 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:37:09,667 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:11,212 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:12,743 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:14,260 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:17,065 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:18,491 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 308 DAG size of output: 60 [2020-08-22 19:37:21,285 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:24,279 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:37:25,837 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:27,340 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:37:30,144 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:32,955 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:34,529 WARN L193 SmtUtils]: Spent 1.56 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:37,339 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:40,194 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:43,015 WARN L193 SmtUtils]: Spent 2.81 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:44,599 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:46,153 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:47,710 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:50,568 WARN L193 SmtUtils]: Spent 2.84 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:52,128 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:37:54,974 WARN L193 SmtUtils]: Spent 2.83 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:37:56,401 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 301 DAG size of output: 53 [2020-08-22 19:37:58,254 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 323 DAG size of output: 80 [2020-08-22 19:38:01,288 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:04,307 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:07,338 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:08,858 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 318 DAG size of output: 76 [2020-08-22 19:38:11,895 WARN L193 SmtUtils]: Spent 3.02 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:14,938 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:16,493 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 316 DAG size of output: 66 [2020-08-22 19:38:18,206 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 338 DAG size of output: 62 [2020-08-22 19:38:19,869 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 322 DAG size of output: 71 [2020-08-22 19:38:21,419 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 311 DAG size of output: 67 [2020-08-22 19:38:22,844 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 305 DAG size of output: 67 [2020-08-22 19:38:25,888 WARN L193 SmtUtils]: Spent 3.03 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:28,945 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:30,683 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 321 DAG size of output: 80 [2020-08-22 19:38:33,762 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:35,209 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 312 DAG size of output: 70 [2020-08-22 19:38:37,032 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 329 DAG size of output: 79 [2020-08-22 19:38:38,418 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 303 DAG size of output: 60 [2020-08-22 19:38:40,182 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 321 DAG size of output: 70 [2020-08-22 19:38:43,300 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:44,904 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 315 DAG size of output: 73 [2020-08-22 19:38:47,986 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:38:49,469 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 334 DAG size of output: 65 [2020-08-22 19:38:51,449 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 370 DAG size of output: 77 [2020-08-22 19:38:53,035 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 331 DAG size of output: 63 [2020-08-22 19:38:54,527 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 310 DAG size of output: 70 [2020-08-22 19:38:57,594 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:00,683 WARN L193 SmtUtils]: Spent 3.07 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:02,134 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 313 DAG size of output: 66 [2020-08-22 19:39:04,051 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 346 DAG size of output: 70 [2020-08-22 19:39:05,935 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 318 DAG size of output: 69 [2020-08-22 19:39:07,456 WARN L193 SmtUtils]: Spent 1.51 s on a formula simplification. DAG size of input: 313 DAG size of output: 71 [2020-08-22 19:39:09,084 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 317 DAG size of output: 75 [2020-08-22 19:39:10,372 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 304 DAG size of output: 69 [2020-08-22 19:39:13,482 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:15,089 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:39:17,997 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:39:19,450 WARN L193 SmtUtils]: Spent 1.44 s on a formula simplification. DAG size of input: 304 DAG size of output: 67 [2020-08-22 19:39:22,561 WARN L193 SmtUtils]: Spent 3.10 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:24,225 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 351 DAG size of output: 61 [2020-08-22 19:39:25,780 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 329 DAG size of output: 63 [2020-08-22 19:39:28,906 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:30,420 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 334 DAG size of output: 65 [2020-08-22 19:39:32,267 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 359 DAG size of output: 77 [2020-08-22 19:39:33,900 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 315 DAG size of output: 64 [2020-08-22 19:39:35,630 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 351 DAG size of output: 63 [2020-08-22 19:39:37,549 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 324 DAG size of output: 79 [2020-08-22 19:39:39,260 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 315 DAG size of output: 78 [2020-08-22 19:39:40,791 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 315 DAG size of output: 67 [2020-08-22 19:39:43,927 WARN L193 SmtUtils]: Spent 3.12 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:45,410 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 307 DAG size of output: 64 [2020-08-22 19:39:46,992 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 328 DAG size of output: 64 [2020-08-22 19:39:50,115 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:53,318 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:39:54,951 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:39:56,822 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 316 DAG size of output: 77 [2020-08-22 19:39:58,450 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:39:59,935 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 319 DAG size of output: 76 [2020-08-22 19:40:01,559 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 318 DAG size of output: 72 [2020-08-22 19:40:03,545 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 365 DAG size of output: 72 [2020-08-22 19:40:05,329 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 316 DAG size of output: 74 [2020-08-22 19:40:06,946 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 317 DAG size of output: 70 [2020-08-22 19:40:08,819 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 360 DAG size of output: 70 [2020-08-22 19:40:11,799 WARN L193 SmtUtils]: Spent 2.97 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:40:14,761 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:40:16,406 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:40:17,993 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:40:19,633 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:40:22,598 WARN L193 SmtUtils]: Spent 2.95 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:40:24,245 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:40:27,236 WARN L193 SmtUtils]: Spent 2.98 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:40:30,215 WARN L193 SmtUtils]: Spent 2.96 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:40:31,843 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 313 DAG size of output: 71 [2020-08-22 19:40:33,369 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 315 DAG size of output: 70 [2020-08-22 19:40:34,860 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 312 DAG size of output: 66 [2020-08-22 19:40:38,084 WARN L193 SmtUtils]: Spent 3.21 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:40:39,671 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 323 DAG size of output: 66 [2020-08-22 19:40:41,665 WARN L193 SmtUtils]: Spent 1.98 s on a formula simplification. DAG size of input: 311 DAG size of output: 77 [2020-08-22 19:40:43,222 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 320 DAG size of output: 67 [2020-08-22 19:40:45,040 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 314 DAG size of output: 73 [2020-08-22 19:40:46,705 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 341 DAG size of output: 64 [2020-08-22 19:40:48,511 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 321 DAG size of output: 80 [2020-08-22 19:40:51,741 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:40:53,637 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 359 DAG size of output: 77 [2020-08-22 19:40:55,356 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 336 DAG size of output: 61 [2020-08-22 19:40:57,170 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 322 DAG size of output: 79 [2020-08-22 19:40:59,104 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 360 DAG size of output: 71 [2020-08-22 19:41:00,619 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 302 DAG size of output: 62 [2020-08-22 19:41:02,174 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 318 DAG size of output: 66 [2020-08-22 19:41:05,410 WARN L193 SmtUtils]: Spent 3.22 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:08,676 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:11,937 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:15,193 WARN L193 SmtUtils]: Spent 3.24 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:16,867 WARN L193 SmtUtils]: Spent 1.66 s on a formula simplification. DAG size of input: 323 DAG size of output: 63 [2020-08-22 19:41:20,148 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:21,519 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 312 DAG size of output: 62 [2020-08-22 19:41:23,281 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 330 DAG size of output: 65 [2020-08-22 19:41:25,088 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 340 DAG size of output: 64 [2020-08-22 19:41:28,370 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:30,122 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 315 DAG size of output: 71 [2020-08-22 19:41:33,387 WARN L193 SmtUtils]: Spent 3.25 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:36,658 WARN L193 SmtUtils]: Spent 3.26 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:38,204 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 316 DAG size of output: 63 [2020-08-22 19:41:41,488 WARN L193 SmtUtils]: Spent 3.27 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:43,365 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 310 DAG size of output: 71 [2020-08-22 19:41:45,294 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 319 DAG size of output: 80 [2020-08-22 19:41:46,870 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 311 DAG size of output: 70 [2020-08-22 19:41:50,158 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:51,933 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 336 DAG size of output: 61 [2020-08-22 19:41:53,483 WARN L193 SmtUtils]: Spent 1.54 s on a formula simplification. DAG size of input: 298 DAG size of output: 62 [2020-08-22 19:41:56,772 WARN L193 SmtUtils]: Spent 3.28 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:41:58,925 WARN L193 SmtUtils]: Spent 2.14 s on a formula simplification. DAG size of input: 370 DAG size of output: 77 [2020-08-22 19:42:00,814 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 322 DAG size of output: 79 [2020-08-22 19:42:02,392 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 325 DAG size of output: 62 [2020-08-22 19:42:03,956 WARN L193 SmtUtils]: Spent 1.55 s on a formula simplification. DAG size of input: 316 DAG size of output: 66 [2020-08-22 19:42:05,747 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 319 DAG size of output: 76 [2020-08-22 19:42:07,195 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 289 DAG size of output: 51 [2020-08-22 19:42:08,916 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:12,035 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:15,155 WARN L193 SmtUtils]: Spent 3.11 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:16,894 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:18,614 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 336 DAG size of output: 62 [2020-08-22 19:42:20,246 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 322 DAG size of output: 66 [2020-08-22 19:42:21,866 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 308 DAG size of output: 60 [2020-08-22 19:42:23,568 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 312 DAG size of output: 73 [2020-08-22 19:42:25,209 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 316 DAG size of output: 73 [2020-08-22 19:42:27,107 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 316 DAG size of output: 76 [2020-08-22 19:42:28,709 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 323 DAG size of output: 75 [2020-08-22 19:42:31,880 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:35,020 WARN L193 SmtUtils]: Spent 3.13 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:36,787 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:38,550 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:40,301 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:43,462 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:45,143 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:42:46,860 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:42:50,019 WARN L193 SmtUtils]: Spent 3.15 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:51,800 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:42:54,955 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:58,111 WARN L193 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:42:59,815 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:43:03,196 WARN L193 SmtUtils]: Spent 3.37 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:43:05,056 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 316 DAG size of output: 76 [2020-08-22 19:43:08,450 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:43:11,641 WARN L193 SmtUtils]: Spent 3.18 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:43:14,816 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:43:18,016 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:43:19,810 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:43:21,462 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 312 DAG size of output: 62 [2020-08-22 19:43:23,107 WARN L193 SmtUtils]: Spent 1.64 s on a formula simplification. DAG size of input: 301 DAG size of output: 53 [2020-08-22 19:43:24,531 WARN L193 SmtUtils]: Spent 1.41 s on a formula simplification. DAG size of input: 300 DAG size of output: 62 [2020-08-22 19:43:26,336 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 319 DAG size of output: 76 [2020-08-22 19:43:28,468 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 363 DAG size of output: 67 [2020-08-22 19:43:30,214 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 313 DAG size of output: 67 [2020-08-22 19:43:32,005 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 321 DAG size of output: 66 [2020-08-22 19:43:33,721 WARN L193 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 316 DAG size of output: 67 [2020-08-22 19:43:35,988 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 313 DAG size of output: 79 [2020-08-22 19:43:37,882 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 342 DAG size of output: 62 [2020-08-22 19:43:39,737 WARN L193 SmtUtils]: Spent 1.85 s on a formula simplification. DAG size of input: 312 DAG size of output: 71 [2020-08-22 19:43:41,520 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 314 DAG size of output: 71 [2020-08-22 19:43:43,533 WARN L193 SmtUtils]: Spent 2.00 s on a formula simplification. DAG size of input: 313 DAG size of output: 82 [2020-08-22 19:43:45,408 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 313 DAG size of output: 70 [2020-08-22 19:43:48,923 WARN L193 SmtUtils]: Spent 3.50 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:43:50,890 WARN L193 SmtUtils]: Spent 1.96 s on a formula simplification. DAG size of input: 337 DAG size of output: 63 [2020-08-22 19:43:54,430 WARN L193 SmtUtils]: Spent 3.53 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:43:57,167 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 387 DAG size of output: 70 [2020-08-22 19:43:59,354 WARN L193 SmtUtils]: Spent 2.17 s on a formula simplification. DAG size of input: 361 DAG size of output: 67 [2020-08-22 19:44:01,035 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 317 DAG size of output: 60 [2020-08-22 19:44:04,569 WARN L193 SmtUtils]: Spent 3.52 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:44:06,813 WARN L193 SmtUtils]: Spent 2.23 s on a formula simplification. DAG size of input: 322 DAG size of output: 80 [2020-08-22 19:44:10,189 WARN L193 SmtUtils]: Spent 3.36 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:44:12,007 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:44:15,399 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:44:17,285 WARN L193 SmtUtils]: Spent 1.88 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:44:19,386 WARN L193 SmtUtils]: Spent 2.05 s on a formula simplification. DAG size of input: 317 DAG size of output: 80 [2020-08-22 19:44:21,141 WARN L193 SmtUtils]: Spent 1.74 s on a formula simplification. DAG size of input: 318 DAG size of output: 66 [2020-08-22 19:44:23,059 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 321 DAG size of output: 70 [2020-08-22 19:44:24,551 WARN L193 SmtUtils]: Spent 1.48 s on a formula simplification. DAG size of input: 305 DAG size of output: 64 [2020-08-22 19:44:28,238 WARN L193 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:44:30,642 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 374 DAG size of output: 71 [2020-08-22 19:44:32,497 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 341 DAG size of output: 64 [2020-08-22 19:44:34,724 WARN L193 SmtUtils]: Spent 2.22 s on a formula simplification. DAG size of input: 361 DAG size of output: 67 [2020-08-22 19:44:36,973 WARN L193 SmtUtils]: Spent 2.24 s on a formula simplification. DAG size of input: 323 DAG size of output: 80 [2020-08-22 19:44:38,778 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 329 DAG size of output: 70 [2020-08-22 19:44:40,588 WARN L193 SmtUtils]: Spent 1.80 s on a formula simplification. DAG size of input: 310 DAG size of output: 65 [2020-08-22 19:44:42,430 WARN L193 SmtUtils]: Spent 1.83 s on a formula simplification. DAG size of input: 309 DAG size of output: 59 [2020-08-22 19:44:45,877 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:44:49,272 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:44:52,669 WARN L193 SmtUtils]: Spent 3.38 s on a formula simplification. DAG size of input: 516 DAG size of output: 62 [2020-08-22 19:44:54,589 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:44:56,512 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:44:58,438 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 310 DAG size of output: 62 [2020-08-22 19:45:02,083 WARN L193 SmtUtils]: Spent 3.63 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:05,909 WARN L193 SmtUtils]: Spent 3.81 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:10,308 WARN L193 SmtUtils]: Spent 4.38 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:12,226 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 322 DAG size of output: 63 [2020-08-22 19:45:14,228 WARN L193 SmtUtils]: Spent 1.99 s on a formula simplification. DAG size of input: 330 DAG size of output: 65 [2020-08-22 19:45:16,167 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 318 DAG size of output: 73 [2020-08-22 19:45:19,866 WARN L193 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:21,993 WARN L193 SmtUtils]: Spent 2.12 s on a formula simplification. DAG size of input: 310 DAG size of output: 72 [2020-08-22 19:45:24,114 WARN L193 SmtUtils]: Spent 2.11 s on a formula simplification. DAG size of input: 353 DAG size of output: 63 [2020-08-22 19:45:27,823 WARN L193 SmtUtils]: Spent 3.70 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:31,506 WARN L193 SmtUtils]: Spent 3.67 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:35,205 WARN L193 SmtUtils]: Spent 3.69 s on a formula simplification. DAG size of input: 526 DAG size of output: 71 [2020-08-22 19:45:36,912 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 308 DAG size of output: 69 [2020-08-22 19:45:39,127 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 321 DAG size of output: 72 [2020-08-22 19:45:41,073 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 318 DAG size of output: 70