/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 22:51:48,729 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 22:51:48,733 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 22:51:48,775 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2020-08-22 22:51:48,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 22:51:48,799 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 22:51:48,801 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 22:51:48,802 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 22:51:48,804 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 22:51:48,805 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 22:51:48,807 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 22:51:48,812 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 22:51:48,814 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 22:51:48,816 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 22:51:48,817 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 22:51:48,819 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 22:51:48,826 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-08-22 22:51:48,849 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 22:51:48,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 22:51:48,851 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 22:51:48,852 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 22:51:48,869 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 22:51:48,869 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 22:51:48,872 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 22:51:48,872 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 22:51:48,873 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 22:51:48,873 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 22:51:48,873 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 22:51:48,873 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 22:51:48,873 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 22:51:48,874 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 22:51:48,875 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 22:51:48,875 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 22:51:48,875 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 22:51:48,875 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 22:51:48,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 22:51:48,876 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 22:51:48,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 22:51:48,876 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 22:51:48,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 22:51:48,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 22:51:48,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 22:51:48,877 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 22:51:48,877 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-08-22 22:51:49,184 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 22:51:49,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 22:51:49,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 22:51:49,202 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 22:51:49,203 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 22:51:49,204 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-22 22:51:49,285 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb1c4a3f/bf15ff77de09417e9159cf07514a157b/FLAGd9d3d77f9 [2020-08-22 22:51:49,914 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 22:51:49,915 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem14_label36.c [2020-08-22 22:51:49,927 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb1c4a3f/bf15ff77de09417e9159cf07514a157b/FLAGd9d3d77f9 [2020-08-22 22:51:50,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fb1c4a3f/bf15ff77de09417e9159cf07514a157b [2020-08-22 22:51:50,159 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 22:51:50,161 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 22:51:50,162 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 22:51:50,162 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 22:51:50,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 22:51:50,167 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:51:50" (1/1) ... [2020-08-22 22:51:50,170 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@9dbf34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:50, skipping insertion in model container [2020-08-22 22:51:50,170 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 10:51:50" (1/1) ... [2020-08-22 22:51:50,179 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 22:51:50,252 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 22:51:50,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:51:50,840 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 22:51:51,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 22:51:51,097 INFO L208 MainTranslator]: Completed translation [2020-08-22 22:51:51,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51 WrapperNode [2020-08-22 22:51:51,098 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 22:51:51,099 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 22:51:51,100 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 22:51:51,100 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 22:51:51,124 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,147 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,147 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,259 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,265 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (1/1) ... [2020-08-22 22:51:51,275 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 22:51:51,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 22:51:51,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 22:51:51,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 22:51:51,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (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 22:51:51,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 22:51:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 22:51:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-08-22 22:51:51,389 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 22:51:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-08-22 22:51:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 22:51:51,390 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 22:51:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-08-22 22:51:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 22:51:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 22:51:51,391 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 22:51:53,252 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 22:51:53,253 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-08-22 22:51:53,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:51:53 BoogieIcfgContainer [2020-08-22 22:51:53,263 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 22:51:53,264 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 22:51:53,265 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 22:51:53,268 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 22:51:53,269 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 10:51:50" (1/3) ... [2020-08-22 22:51:53,270 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d60496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:51:53, skipping insertion in model container [2020-08-22 22:51:53,270 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 10:51:51" (2/3) ... [2020-08-22 22:51:53,271 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8d60496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 10:51:53, skipping insertion in model container [2020-08-22 22:51:53,271 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 10:51:53" (3/3) ... [2020-08-22 22:51:53,273 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label36.c [2020-08-22 22:51:53,285 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 22:51:53,295 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 22:51:53,311 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 22:51:53,337 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 22:51:53,338 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 22:51:53,338 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-08-22 22:51:53,338 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 22:51:53,338 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 22:51:53,338 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 22:51:53,339 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 22:51:53,339 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 22:51:53,367 INFO L276 IsEmpty]: Start isEmpty. Operand 678 states. [2020-08-22 22:51:53,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2020-08-22 22:51:53,382 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:53,384 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] [2020-08-22 22:51:53,384 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:53,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:53,391 INFO L82 PathProgramCache]: Analyzing trace with hash -4985686, now seen corresponding path program 1 times [2020-08-22 22:51:53,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:53,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1059889405] [2020-08-22 22:51:53,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:53,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:53,786 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:53,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:53,830 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 22:51:53,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1059889405] [2020-08-22 22:51:53,834 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:51:53,834 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-08-22 22:51:53,835 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366728733] [2020-08-22 22:51:53,841 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:51:53,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:53,858 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:51:53,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:51:53,862 INFO L87 Difference]: Start difference. First operand 678 states. Second operand 5 states. [2020-08-22 22:51:58,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:51:58,119 INFO L93 Difference]: Finished difference Result 1969 states and 2695 transitions. [2020-08-22 22:51:58,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-08-22 22:51:58,121 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 67 [2020-08-22 22:51:58,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:51:58,149 INFO L225 Difference]: With dead ends: 1969 [2020-08-22 22:51:58,149 INFO L226 Difference]: Without dead ends: 1228 [2020-08-22 22:51:58,162 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 22:51:58,186 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1228 states. [2020-08-22 22:51:58,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1228 to 997. [2020-08-22 22:51:58,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 997 states. [2020-08-22 22:51:58,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 997 states to 997 states and 1298 transitions. [2020-08-22 22:51:58,371 INFO L78 Accepts]: Start accepts. Automaton has 997 states and 1298 transitions. Word has length 67 [2020-08-22 22:51:58,371 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:51:58,372 INFO L479 AbstractCegarLoop]: Abstraction has 997 states and 1298 transitions. [2020-08-22 22:51:58,372 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:51:58,372 INFO L276 IsEmpty]: Start isEmpty. Operand 997 states and 1298 transitions. [2020-08-22 22:51:58,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-08-22 22:51:58,383 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:51:58,384 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:51:58,384 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 22:51:58,385 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:51:58,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:51:58,386 INFO L82 PathProgramCache]: Analyzing trace with hash -1110606662, now seen corresponding path program 1 times [2020-08-22 22:51:58,386 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:51:58,386 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1893058949] [2020-08-22 22:51:58,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:51:58,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:58,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:51:58,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:58,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:51:58,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:51:58,747 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 22:51:58,748 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1893058949] [2020-08-22 22:51:58,748 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 22:51:58,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-08-22 22:51:58,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449859271] [2020-08-22 22:51:58,751 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-08-22 22:51:58,751 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:51:58,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-08-22 22:51:58,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-08-22 22:51:58,752 INFO L87 Difference]: Start difference. First operand 997 states and 1298 transitions. Second operand 8 states. [2020-08-22 22:52:02,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:02,089 INFO L93 Difference]: Finished difference Result 2640 states and 3636 transitions. [2020-08-22 22:52:02,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-08-22 22:52:02,090 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 170 [2020-08-22 22:52:02,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:02,124 INFO L225 Difference]: With dead ends: 2640 [2020-08-22 22:52:02,125 INFO L226 Difference]: Without dead ends: 1658 [2020-08-22 22:52:02,134 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 22:52:02,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1658 states. [2020-08-22 22:52:02,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1658 to 1584. [2020-08-22 22:52:02,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1584 states. [2020-08-22 22:52:02,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2092 transitions. [2020-08-22 22:52:02,301 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2092 transitions. Word has length 170 [2020-08-22 22:52:02,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:02,305 INFO L479 AbstractCegarLoop]: Abstraction has 1584 states and 2092 transitions. [2020-08-22 22:52:02,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-08-22 22:52:02,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2092 transitions. [2020-08-22 22:52:02,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 247 [2020-08-22 22:52:02,319 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:02,320 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, 2, 2, 2, 2, 2, 2, 2, 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] [2020-08-22 22:52:02,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 22:52:02,320 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:02,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:02,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1244659725, now seen corresponding path program 1 times [2020-08-22 22:52:02,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:02,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922491033] [2020-08-22 22:52:02,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:02,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:02,588 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:02,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:02,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:02,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2020-08-22 22:52:02,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:02,971 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 102 proven. 71 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-08-22 22:52:02,972 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922491033] [2020-08-22 22:52:02,972 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:02,972 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:52:02,973 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208169809] [2020-08-22 22:52:02,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:52:02,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:02,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:52:02,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:52:02,975 INFO L87 Difference]: Start difference. First operand 1584 states and 2092 transitions. Second operand 9 states. [2020-08-22 22:52:07,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:07,263 INFO L93 Difference]: Finished difference Result 4160 states and 5530 transitions. [2020-08-22 22:52:07,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:52:07,269 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 246 [2020-08-22 22:52:07,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:07,293 INFO L225 Difference]: With dead ends: 4160 [2020-08-22 22:52:07,293 INFO L226 Difference]: Without dead ends: 2591 [2020-08-22 22:52:07,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=85, Invalid=221, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:52:07,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2591 states. [2020-08-22 22:52:07,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2591 to 1978. [2020-08-22 22:52:07,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1978 states. [2020-08-22 22:52:07,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1978 states to 1978 states and 2539 transitions. [2020-08-22 22:52:07,546 INFO L78 Accepts]: Start accepts. Automaton has 1978 states and 2539 transitions. Word has length 246 [2020-08-22 22:52:07,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:07,547 INFO L479 AbstractCegarLoop]: Abstraction has 1978 states and 2539 transitions. [2020-08-22 22:52:07,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:52:07,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1978 states and 2539 transitions. [2020-08-22 22:52:07,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 377 [2020-08-22 22:52:07,558 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:07,558 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:07,558 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 22:52:07,559 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:07,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:07,559 INFO L82 PathProgramCache]: Analyzing trace with hash -534522417, now seen corresponding path program 1 times [2020-08-22 22:52:07,559 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:07,560 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1884564984] [2020-08-22 22:52:07,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:07,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:07,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:07,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:07,709 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:07,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:07,782 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-08-22 22:52:07,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:07,831 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-08-22 22:52:07,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:08,053 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 153 proven. 136 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2020-08-22 22:52:08,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1884564984] [2020-08-22 22:52:08,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:08,054 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:52:08,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550482539] [2020-08-22 22:52:08,056 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:52:08,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:52:08,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:52:08,057 INFO L87 Difference]: Start difference. First operand 1978 states and 2539 transitions. Second operand 9 states. [2020-08-22 22:52:11,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:11,333 INFO L93 Difference]: Finished difference Result 4028 states and 5281 transitions. [2020-08-22 22:52:11,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-08-22 22:52:11,334 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 376 [2020-08-22 22:52:11,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:11,352 INFO L225 Difference]: With dead ends: 4028 [2020-08-22 22:52:11,352 INFO L226 Difference]: Without dead ends: 2447 [2020-08-22 22:52:11,362 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2020-08-22 22:52:11,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2447 states. [2020-08-22 22:52:11,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2447 to 2410. [2020-08-22 22:52:11,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2410 states. [2020-08-22 22:52:11,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2410 states to 2410 states and 3018 transitions. [2020-08-22 22:52:11,664 INFO L78 Accepts]: Start accepts. Automaton has 2410 states and 3018 transitions. Word has length 376 [2020-08-22 22:52:11,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:11,665 INFO L479 AbstractCegarLoop]: Abstraction has 2410 states and 3018 transitions. [2020-08-22 22:52:11,665 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:52:11,665 INFO L276 IsEmpty]: Start isEmpty. Operand 2410 states and 3018 transitions. [2020-08-22 22:52:11,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2020-08-22 22:52:11,677 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:11,677 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 22:52:11,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 22:52:11,678 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:11,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:11,679 INFO L82 PathProgramCache]: Analyzing trace with hash -265000666, now seen corresponding path program 1 times [2020-08-22 22:52:11,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:11,682 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2120263812] [2020-08-22 22:52:11,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:11,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,875 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:11,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:11,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:11,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2020-08-22 22:52:12,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:12,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-08-22 22:52:12,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:12,734 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 199 proven. 221 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2020-08-22 22:52:12,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2120263812] [2020-08-22 22:52:12,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:12,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:52:12,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [999206462] [2020-08-22 22:52:12,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:52:12,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:12,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:52:12,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=81, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:52:12,737 INFO L87 Difference]: Start difference. First operand 2410 states and 3018 transitions. Second operand 11 states. [2020-08-22 22:52:17,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:17,741 INFO L93 Difference]: Finished difference Result 5421 states and 6855 transitions. [2020-08-22 22:52:17,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-08-22 22:52:17,742 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 386 [2020-08-22 22:52:17,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:17,766 INFO L225 Difference]: With dead ends: 5421 [2020-08-22 22:52:17,767 INFO L226 Difference]: Without dead ends: 3260 [2020-08-22 22:52:17,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 143 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=162, Invalid=488, Unknown=0, NotChecked=0, Total=650 [2020-08-22 22:52:17,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3260 states. [2020-08-22 22:52:18,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3260 to 3204. [2020-08-22 22:52:18,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3204 states. [2020-08-22 22:52:18,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3204 states to 3204 states and 3876 transitions. [2020-08-22 22:52:18,104 INFO L78 Accepts]: Start accepts. Automaton has 3204 states and 3876 transitions. Word has length 386 [2020-08-22 22:52:18,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:18,105 INFO L479 AbstractCegarLoop]: Abstraction has 3204 states and 3876 transitions. [2020-08-22 22:52:18,105 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:52:18,105 INFO L276 IsEmpty]: Start isEmpty. Operand 3204 states and 3876 transitions. [2020-08-22 22:52:18,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 530 [2020-08-22 22:52:18,120 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:18,121 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 22:52:18,121 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 22:52:18,121 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:18,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:18,122 INFO L82 PathProgramCache]: Analyzing trace with hash 218853277, now seen corresponding path program 1 times [2020-08-22 22:52:18,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:18,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1918450908] [2020-08-22 22:52:18,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:18,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,322 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:18,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:18,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,378 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:18,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,430 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2020-08-22 22:52:18,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:18,807 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 509 proven. 2 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2020-08-22 22:52:18,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1918450908] [2020-08-22 22:52:18,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:18,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:52:18,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733569167] [2020-08-22 22:52:18,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:52:18,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:18,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:52:18,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:52:18,810 INFO L87 Difference]: Start difference. First operand 3204 states and 3876 transitions. Second operand 7 states. [2020-08-22 22:52:22,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:22,936 INFO L93 Difference]: Finished difference Result 7056 states and 8950 transitions. [2020-08-22 22:52:22,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:52:22,937 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 529 [2020-08-22 22:52:22,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:22,965 INFO L225 Difference]: With dead ends: 7056 [2020-08-22 22:52:22,966 INFO L226 Difference]: Without dead ends: 4249 [2020-08-22 22:52:22,976 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 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 22:52:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4249 states. [2020-08-22 22:52:23,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4249 to 4010. [2020-08-22 22:52:23,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4010 states. [2020-08-22 22:52:23,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4010 states to 4010 states and 4864 transitions. [2020-08-22 22:52:23,504 INFO L78 Accepts]: Start accepts. Automaton has 4010 states and 4864 transitions. Word has length 529 [2020-08-22 22:52:23,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:23,505 INFO L479 AbstractCegarLoop]: Abstraction has 4010 states and 4864 transitions. [2020-08-22 22:52:23,505 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:52:23,506 INFO L276 IsEmpty]: Start isEmpty. Operand 4010 states and 4864 transitions. [2020-08-22 22:52:23,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2020-08-22 22:52:23,516 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:23,517 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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 22:52:23,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-08-22 22:52:23,518 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:23,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:23,519 INFO L82 PathProgramCache]: Analyzing trace with hash -1803488621, now seen corresponding path program 1 times [2020-08-22 22:52:23,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:23,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [36491055] [2020-08-22 22:52:23,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:23,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:23,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,769 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:23,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:23,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:23,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:23,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:24,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2020-08-22 22:52:24,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:24,378 INFO L134 CoverageAnalysis]: Checked inductivity of 883 backedges. 547 proven. 222 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2020-08-22 22:52:24,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [36491055] [2020-08-22 22:52:24,379 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:24,379 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-08-22 22:52:24,379 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842424956] [2020-08-22 22:52:24,380 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-08-22 22:52:24,380 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:24,380 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-08-22 22:52:24,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-08-22 22:52:24,381 INFO L87 Difference]: Start difference. First operand 4010 states and 4864 transitions. Second operand 12 states. [2020-08-22 22:52:33,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:33,182 INFO L93 Difference]: Finished difference Result 9423 states and 11610 transitions. [2020-08-22 22:52:33,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2020-08-22 22:52:33,183 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 541 [2020-08-22 22:52:33,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:33,219 INFO L225 Difference]: With dead ends: 9423 [2020-08-22 22:52:33,219 INFO L226 Difference]: Without dead ends: 5810 [2020-08-22 22:52:33,235 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 656 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=422, Invalid=1834, Unknown=0, NotChecked=0, Total=2256 [2020-08-22 22:52:33,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5810 states. [2020-08-22 22:52:33,828 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5810 to 3809. [2020-08-22 22:52:33,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3809 states. [2020-08-22 22:52:33,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3809 states to 3809 states and 4607 transitions. [2020-08-22 22:52:33,836 INFO L78 Accepts]: Start accepts. Automaton has 3809 states and 4607 transitions. Word has length 541 [2020-08-22 22:52:33,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:33,837 INFO L479 AbstractCegarLoop]: Abstraction has 3809 states and 4607 transitions. [2020-08-22 22:52:33,837 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-08-22 22:52:33,837 INFO L276 IsEmpty]: Start isEmpty. Operand 3809 states and 4607 transitions. [2020-08-22 22:52:33,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 624 [2020-08-22 22:52:33,846 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:33,847 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 22:52:33,847 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-08-22 22:52:33,847 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:33,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:33,848 INFO L82 PathProgramCache]: Analyzing trace with hash 802919336, now seen corresponding path program 1 times [2020-08-22 22:52:33,848 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:33,848 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [412594025] [2020-08-22 22:52:33,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:33,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:33,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:33,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:34,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:34,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:34,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2020-08-22 22:52:34,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 462 [2020-08-22 22:52:34,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:34,450 INFO L134 CoverageAnalysis]: Checked inductivity of 1246 backedges. 452 proven. 140 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2020-08-22 22:52:34,450 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [412594025] [2020-08-22 22:52:34,450 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:34,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:52:34,451 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162508823] [2020-08-22 22:52:34,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:52:34,452 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:34,452 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:52:34,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:52:34,453 INFO L87 Difference]: Start difference. First operand 3809 states and 4607 transitions. Second operand 7 states. [2020-08-22 22:52:37,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:37,890 INFO L93 Difference]: Finished difference Result 8345 states and 10502 transitions. [2020-08-22 22:52:37,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:52:37,892 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 623 [2020-08-22 22:52:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:37,914 INFO L225 Difference]: With dead ends: 8345 [2020-08-22 22:52:37,915 INFO L226 Difference]: Without dead ends: 4933 [2020-08-22 22:52:37,926 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 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 22:52:37,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4933 states. [2020-08-22 22:52:38,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4933 to 4902. [2020-08-22 22:52:38,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4902 states. [2020-08-22 22:52:38,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4902 states to 4902 states and 6054 transitions. [2020-08-22 22:52:38,469 INFO L78 Accepts]: Start accepts. Automaton has 4902 states and 6054 transitions. Word has length 623 [2020-08-22 22:52:38,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:38,470 INFO L479 AbstractCegarLoop]: Abstraction has 4902 states and 6054 transitions. [2020-08-22 22:52:38,470 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:52:38,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4902 states and 6054 transitions. [2020-08-22 22:52:38,481 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2020-08-22 22:52:38,481 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:38,481 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2020-08-22 22:52:38,482 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-08-22 22:52:38,482 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:38,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:38,483 INFO L82 PathProgramCache]: Analyzing trace with hash 2077567481, now seen corresponding path program 1 times [2020-08-22 22:52:38,483 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:38,483 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [384790042] [2020-08-22 22:52:38,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:38,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:38,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:38,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:38,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,753 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:38,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:38,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 340 [2020-08-22 22:52:38,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:39,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 463 [2020-08-22 22:52:39,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 1250 backedges. 712 proven. 220 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-08-22 22:52:39,508 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [384790042] [2020-08-22 22:52:39,508 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:39,509 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 22:52:39,509 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153980745] [2020-08-22 22:52:39,510 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:52:39,510 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:39,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:52:39,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:39,511 INFO L87 Difference]: Start difference. First operand 4902 states and 6054 transitions. Second operand 13 states. [2020-08-22 22:52:45,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:45,474 INFO L93 Difference]: Finished difference Result 10545 states and 13016 transitions. [2020-08-22 22:52:45,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-08-22 22:52:45,475 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 624 [2020-08-22 22:52:45,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:45,512 INFO L225 Difference]: With dead ends: 10545 [2020-08-22 22:52:45,512 INFO L226 Difference]: Without dead ends: 5913 [2020-08-22 22:52:45,526 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2020-08-22 22:52:45,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5913 states. [2020-08-22 22:52:46,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5913 to 5460. [2020-08-22 22:52:46,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5460 states. [2020-08-22 22:52:46,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5460 states to 5460 states and 6579 transitions. [2020-08-22 22:52:46,090 INFO L78 Accepts]: Start accepts. Automaton has 5460 states and 6579 transitions. Word has length 624 [2020-08-22 22:52:46,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:46,091 INFO L479 AbstractCegarLoop]: Abstraction has 5460 states and 6579 transitions. [2020-08-22 22:52:46,091 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:52:46,091 INFO L276 IsEmpty]: Start isEmpty. Operand 5460 states and 6579 transitions. [2020-08-22 22:52:46,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2020-08-22 22:52:46,104 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:46,105 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 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] [2020-08-22 22:52:46,105 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-08-22 22:52:46,105 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:46,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:46,106 INFO L82 PathProgramCache]: Analyzing trace with hash 374331114, now seen corresponding path program 1 times [2020-08-22 22:52:46,106 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:46,106 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [803487651] [2020-08-22 22:52:46,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:46,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:46,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:46,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,350 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:46,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,384 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:46,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 404 [2020-08-22 22:52:46,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:46,654 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 527 [2020-08-22 22:52:46,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 1394 backedges. 775 proven. 301 refuted. 0 times theorem prover too weak. 318 trivial. 0 not checked. [2020-08-22 22:52:47,461 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [803487651] [2020-08-22 22:52:47,461 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:47,461 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-08-22 22:52:47,461 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253775020] [2020-08-22 22:52:47,462 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-08-22 22:52:47,462 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:47,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-08-22 22:52:47,463 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:52:47,463 INFO L87 Difference]: Start difference. First operand 5460 states and 6579 transitions. Second operand 13 states. [2020-08-22 22:52:53,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:52:53,926 INFO L93 Difference]: Finished difference Result 12672 states and 15791 transitions. [2020-08-22 22:52:53,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-08-22 22:52:53,927 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 688 [2020-08-22 22:52:53,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:52:53,973 INFO L225 Difference]: With dead ends: 12672 [2020-08-22 22:52:53,973 INFO L226 Difference]: Without dead ends: 7496 [2020-08-22 22:52:53,992 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=146, Invalid=504, Unknown=0, NotChecked=0, Total=650 [2020-08-22 22:52:54,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7496 states. [2020-08-22 22:52:54,787 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7496 to 7415. [2020-08-22 22:52:54,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7415 states. [2020-08-22 22:52:54,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7415 states to 7415 states and 9193 transitions. [2020-08-22 22:52:54,799 INFO L78 Accepts]: Start accepts. Automaton has 7415 states and 9193 transitions. Word has length 688 [2020-08-22 22:52:54,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:52:54,800 INFO L479 AbstractCegarLoop]: Abstraction has 7415 states and 9193 transitions. [2020-08-22 22:52:54,800 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-08-22 22:52:54,800 INFO L276 IsEmpty]: Start isEmpty. Operand 7415 states and 9193 transitions. [2020-08-22 22:52:54,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 739 [2020-08-22 22:52:54,814 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:52:54,815 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 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 22:52:54,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-08-22 22:52:54,815 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:52:54,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:52:54,816 INFO L82 PathProgramCache]: Analyzing trace with hash 2004129564, now seen corresponding path program 1 times [2020-08-22 22:52:54,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:52:54,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613980912] [2020-08-22 22:52:54,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:52:54,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:52:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:54,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:52:55,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:55,024 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:52:55,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:55,078 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:52:55,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:55,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 400 [2020-08-22 22:52:55,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:55,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2020-08-22 22:52:55,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:52:56,033 INFO L134 CoverageAnalysis]: Checked inductivity of 1371 backedges. 532 proven. 229 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2020-08-22 22:52:56,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613980912] [2020-08-22 22:52:56,034 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:52:56,034 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-08-22 22:52:56,034 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970707725] [2020-08-22 22:52:56,035 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-08-22 22:52:56,035 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:52:56,035 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-08-22 22:52:56,035 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2020-08-22 22:52:56,036 INFO L87 Difference]: Start difference. First operand 7415 states and 9193 transitions. Second operand 11 states. [2020-08-22 22:53:04,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:04,907 INFO L93 Difference]: Finished difference Result 15830 states and 19741 transitions. [2020-08-22 22:53:04,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-08-22 22:53:04,909 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 738 [2020-08-22 22:53:04,910 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:04,954 INFO L225 Difference]: With dead ends: 15830 [2020-08-22 22:53:04,954 INFO L226 Difference]: Without dead ends: 8812 [2020-08-22 22:53:04,977 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 29 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 329 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=315, Invalid=945, Unknown=0, NotChecked=0, Total=1260 [2020-08-22 22:53:04,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8812 states. [2020-08-22 22:53:06,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8812 to 8579. [2020-08-22 22:53:06,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8579 states. [2020-08-22 22:53:06,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8579 states to 8579 states and 10659 transitions. [2020-08-22 22:53:06,122 INFO L78 Accepts]: Start accepts. Automaton has 8579 states and 10659 transitions. Word has length 738 [2020-08-22 22:53:06,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:06,122 INFO L479 AbstractCegarLoop]: Abstraction has 8579 states and 10659 transitions. [2020-08-22 22:53:06,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-08-22 22:53:06,122 INFO L276 IsEmpty]: Start isEmpty. Operand 8579 states and 10659 transitions. [2020-08-22 22:53:06,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 889 [2020-08-22 22:53:06,138 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:06,138 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2020-08-22 22:53:06,139 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-08-22 22:53:06,139 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:06,139 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:06,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1910435264, now seen corresponding path program 1 times [2020-08-22 22:53:06,140 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:06,140 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1485437468] [2020-08-22 22:53:06,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:06,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:06,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:06,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:06,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:53:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:53:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:06,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2020-08-22 22:53:06,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:07,169 INFO L134 CoverageAnalysis]: Checked inductivity of 2025 backedges. 325 proven. 6 refuted. 0 times theorem prover too weak. 1694 trivial. 0 not checked. [2020-08-22 22:53:07,170 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1485437468] [2020-08-22 22:53:07,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:07,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-08-22 22:53:07,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584477273] [2020-08-22 22:53:07,171 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-08-22 22:53:07,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:07,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-08-22 22:53:07,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-08-22 22:53:07,171 INFO L87 Difference]: Start difference. First operand 8579 states and 10659 transitions. Second operand 5 states. [2020-08-22 22:53:10,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:10,985 INFO L93 Difference]: Finished difference Result 19105 states and 24189 transitions. [2020-08-22 22:53:10,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-08-22 22:53:10,986 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 888 [2020-08-22 22:53:10,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:11,038 INFO L225 Difference]: With dead ends: 19105 [2020-08-22 22:53:11,038 INFO L226 Difference]: Without dead ends: 10923 [2020-08-22 22:53:11,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-08-22 22:53:11,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10923 states. [2020-08-22 22:53:12,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10923 to 10698. [2020-08-22 22:53:12,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10698 states. [2020-08-22 22:53:12,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10698 states to 10698 states and 13504 transitions. [2020-08-22 22:53:12,293 INFO L78 Accepts]: Start accepts. Automaton has 10698 states and 13504 transitions. Word has length 888 [2020-08-22 22:53:12,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:12,294 INFO L479 AbstractCegarLoop]: Abstraction has 10698 states and 13504 transitions. [2020-08-22 22:53:12,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-08-22 22:53:12,294 INFO L276 IsEmpty]: Start isEmpty. Operand 10698 states and 13504 transitions. [2020-08-22 22:53:12,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2020-08-22 22:53:12,308 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:12,309 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:53:12,309 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-08-22 22:53:12,309 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:12,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:12,309 INFO L82 PathProgramCache]: Analyzing trace with hash 1844532278, now seen corresponding path program 1 times [2020-08-22 22:53:12,310 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:12,310 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2064319117] [2020-08-22 22:53:12,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:12,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:12,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:12,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:12,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:12,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:12,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:12,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:12,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:53:12,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:13,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:53:13,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:13,085 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 739 [2020-08-22 22:53:13,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:13,629 INFO L134 CoverageAnalysis]: Checked inductivity of 2080 backedges. 867 proven. 37 refuted. 0 times theorem prover too weak. 1176 trivial. 0 not checked. [2020-08-22 22:53:13,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2064319117] [2020-08-22 22:53:13,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:13,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-08-22 22:53:13,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964521869] [2020-08-22 22:53:13,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 22:53:13,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:13,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 22:53:13,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-08-22 22:53:13,631 INFO L87 Difference]: Start difference. First operand 10698 states and 13504 transitions. Second operand 9 states. [2020-08-22 22:53:21,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:21,989 INFO L93 Difference]: Finished difference Result 24493 states and 31106 transitions. [2020-08-22 22:53:21,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-08-22 22:53:21,990 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 900 [2020-08-22 22:53:21,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:22,064 INFO L225 Difference]: With dead ends: 24493 [2020-08-22 22:53:22,064 INFO L226 Difference]: Without dead ends: 14192 [2020-08-22 22:53:22,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=131, Invalid=421, Unknown=0, NotChecked=0, Total=552 [2020-08-22 22:53:22,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14192 states. [2020-08-22 22:53:23,823 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14192 to 12986. [2020-08-22 22:53:23,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12986 states. [2020-08-22 22:53:23,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12986 states to 12986 states and 16154 transitions. [2020-08-22 22:53:23,844 INFO L78 Accepts]: Start accepts. Automaton has 12986 states and 16154 transitions. Word has length 900 [2020-08-22 22:53:23,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:23,845 INFO L479 AbstractCegarLoop]: Abstraction has 12986 states and 16154 transitions. [2020-08-22 22:53:23,845 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 22:53:23,845 INFO L276 IsEmpty]: Start isEmpty. Operand 12986 states and 16154 transitions. [2020-08-22 22:53:23,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 917 [2020-08-22 22:53:23,860 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 22:53:23,861 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 22:53:23,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-08-22 22:53:23,861 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 22:53:23,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 22:53:23,862 INFO L82 PathProgramCache]: Analyzing trace with hash -558197454, now seen corresponding path program 1 times [2020-08-22 22:53:23,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 22:53:23,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1576327034] [2020-08-22 22:53:23,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 22:53:23,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,099 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 22:53:24,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2020-08-22 22:53:24,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-08-22 22:53:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-08-22 22:53:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 382 [2020-08-22 22:53:24,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 550 [2020-08-22 22:53:24,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 632 [2020-08-22 22:53:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 755 [2020-08-22 22:53:24,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 22:53:24,577 INFO L134 CoverageAnalysis]: Checked inductivity of 2547 backedges. 373 proven. 56 refuted. 0 times theorem prover too weak. 2118 trivial. 0 not checked. [2020-08-22 22:53:24,578 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1576327034] [2020-08-22 22:53:24,578 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-08-22 22:53:24,579 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-08-22 22:53:24,579 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180194183] [2020-08-22 22:53:24,580 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-08-22 22:53:24,580 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 22:53:24,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-08-22 22:53:24,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-08-22 22:53:24,581 INFO L87 Difference]: Start difference. First operand 12986 states and 16154 transitions. Second operand 7 states. [2020-08-22 22:53:31,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 22:53:31,440 INFO L93 Difference]: Finished difference Result 15099 states and 18810 transitions. [2020-08-22 22:53:31,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 22:53:31,441 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 916 [2020-08-22 22:53:31,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 22:53:31,445 INFO L225 Difference]: With dead ends: 15099 [2020-08-22 22:53:31,446 INFO L226 Difference]: Without dead ends: 0 [2020-08-22 22:53:31,488 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2020-08-22 22:53:31,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-08-22 22:53:31,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-08-22 22:53:31,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-08-22 22:53:31,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-08-22 22:53:31,489 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 916 [2020-08-22 22:53:31,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 22:53:31,489 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-08-22 22:53:31,489 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-08-22 22:53:31,489 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-08-22 22:53:31,489 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-08-22 22:53:31,490 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-08-22 22:53:31,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-08-22 22:53:31,933 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-08-22 22:53:33,808 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:53:34,755 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:53:36,256 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:53:38,484 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 64 [2020-08-22 22:53:44,027 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 61 [2020-08-22 22:53:49,515 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2020-08-22 22:53:54,922 WARN L193 SmtUtils]: Spent 789.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 80 [2020-08-22 22:53:59,494 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:54:59,161 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:55:47,221 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:55:54,579 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 216 [2020-08-22 22:55:54,960 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 184 [2020-08-22 22:55:55,270 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 196 [2020-08-22 22:55:56,274 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 191 [2020-08-22 22:55:56,597 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 189 [2020-08-22 22:55:56,874 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 205 [2020-08-22 22:55:57,223 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 187 [2020-08-22 22:55:57,421 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 185 [2020-08-22 22:55:57,639 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 205 [2020-08-22 22:55:58,316 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 189 [2020-08-22 22:55:59,125 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 267 DAG size of output: 216 [2020-08-22 22:55:59,500 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 234 DAG size of output: 184 [2020-08-22 22:55:59,808 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 245 DAG size of output: 196 [2020-08-22 22:56:00,824 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 191 [2020-08-22 22:56:01,153 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 189 [2020-08-22 22:56:01,428 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 253 DAG size of output: 205 [2020-08-22 22:56:01,777 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 237 DAG size of output: 187 [2020-08-22 22:56:01,975 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 235 DAG size of output: 185 [2020-08-22 22:56:02,186 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 205 [2020-08-22 22:56:02,864 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 240 DAG size of output: 189 [2020-08-22 22:56:30,541 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 228 DAG size of output: 169 [2020-08-22 22:56:31,422 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 168 [2020-08-22 22:56:31,806 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 168 [2020-08-22 22:56:32,252 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 168 [2020-08-22 22:57:01,611 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 225 DAG size of output: 56 [2020-08-22 22:57:03,936 WARN L193 SmtUtils]: Spent 2.31 s on a formula simplification. DAG size of input: 387 DAG size of output: 83 [2020-08-22 22:57:04,956 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 217 DAG size of output: 56 [2020-08-22 22:57:06,015 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 237 DAG size of output: 54 [2020-08-22 22:57:06,754 WARN L193 SmtUtils]: Spent 736.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 51 [2020-08-22 22:57:08,086 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 248 DAG size of output: 62 [2020-08-22 22:57:09,344 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 239 DAG size of output: 64 [2020-08-22 22:57:10,527 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 224 DAG size of output: 56 [2020-08-22 22:57:11,239 WARN L193 SmtUtils]: Spent 709.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 51 [2020-08-22 22:57:13,801 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:57:14,687 WARN L193 SmtUtils]: Spent 874.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 50 [2020-08-22 22:57:17,260 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:57:18,001 WARN L193 SmtUtils]: Spent 737.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 51 [2020-08-22 22:57:19,120 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 247 DAG size of output: 55 [2020-08-22 22:57:20,121 WARN L193 SmtUtils]: Spent 989.00 ms on a formula simplification. DAG size of input: 230 DAG size of output: 53 [2020-08-22 22:57:21,555 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 220 DAG size of output: 75 [2020-08-22 22:57:22,466 WARN L193 SmtUtils]: Spent 898.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 55 [2020-08-22 22:57:23,520 WARN L193 SmtUtils]: Spent 1.04 s on a formula simplification. DAG size of input: 245 DAG size of output: 58 [2020-08-22 22:57:24,514 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 56 [2020-08-22 22:57:25,552 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 224 DAG size of output: 57 [2020-08-22 22:57:26,786 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 223 DAG size of output: 75 [2020-08-22 22:57:28,052 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 243 DAG size of output: 55 [2020-08-22 22:57:30,490 WARN L193 SmtUtils]: Spent 2.43 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:57:31,949 WARN L193 SmtUtils]: Spent 1.45 s on a formula simplification. DAG size of input: 255 DAG size of output: 66 [2020-08-22 22:57:33,149 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 234 DAG size of output: 52 [2020-08-22 22:57:34,146 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 60 [2020-08-22 22:57:35,556 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 238 DAG size of output: 55 [2020-08-22 22:57:36,479 WARN L193 SmtUtils]: Spent 912.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 55 [2020-08-22 22:57:37,492 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 225 DAG size of output: 56 [2020-08-22 22:57:39,428 WARN L193 SmtUtils]: Spent 1.92 s on a formula simplification. DAG size of input: 285 DAG size of output: 80 [2020-08-22 22:57:40,696 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 217 DAG size of output: 54 [2020-08-22 22:57:41,704 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 54 [2020-08-22 22:57:43,202 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 246 DAG size of output: 85 [2020-08-22 22:57:44,838 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 243 DAG size of output: 61 [2020-08-22 22:57:47,435 WARN L193 SmtUtils]: Spent 2.58 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:57:49,061 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 260 DAG size of output: 65 [2020-08-22 22:57:49,962 WARN L193 SmtUtils]: Spent 889.00 ms on a formula simplification. DAG size of input: 212 DAG size of output: 51 [2020-08-22 22:57:52,545 WARN L193 SmtUtils]: Spent 2.57 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:57:53,562 WARN L193 SmtUtils]: Spent 1.00 s on a formula simplification. DAG size of input: 224 DAG size of output: 66 [2020-08-22 22:57:54,588 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 227 DAG size of output: 57 [2020-08-22 22:57:55,893 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 230 DAG size of output: 71 [2020-08-22 22:57:56,852 WARN L193 SmtUtils]: Spent 948.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 22:57:59,554 WARN L193 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:00,965 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 228 DAG size of output: 67 [2020-08-22 22:58:02,204 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 248 DAG size of output: 57 [2020-08-22 22:58:03,308 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 242 DAG size of output: 56 [2020-08-22 22:58:05,957 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:06,953 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 220 DAG size of output: 59 [2020-08-22 22:58:09,618 WARN L193 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:10,898 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 239 DAG size of output: 61 [2020-08-22 22:58:12,098 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 234 DAG size of output: 52 [2020-08-22 22:58:13,684 WARN L193 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 231 DAG size of output: 93 [2020-08-22 22:58:15,198 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 255 DAG size of output: 66 [2020-08-22 22:58:16,223 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 218 DAG size of output: 56 [2020-08-22 22:58:18,864 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:20,714 WARN L193 SmtUtils]: Spent 1.84 s on a formula simplification. DAG size of input: 244 DAG size of output: 75 [2020-08-22 22:58:21,943 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 228 DAG size of output: 72 [2020-08-22 22:58:23,654 WARN L193 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 243 DAG size of output: 69 [2020-08-22 22:58:25,096 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 241 DAG size of output: 76 [2020-08-22 22:58:26,176 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 234 DAG size of output: 57 [2020-08-22 22:58:27,415 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 252 DAG size of output: 63 [2020-08-22 22:58:30,085 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:32,804 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:35,479 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:38,167 WARN L193 SmtUtils]: Spent 2.67 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:39,792 WARN L193 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 229 DAG size of output: 92 [2020-08-22 22:58:40,802 WARN L193 SmtUtils]: Spent 1000.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 53 [2020-08-22 22:58:42,444 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 231 DAG size of output: 93 [2020-08-22 22:58:43,680 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 227 DAG size of output: 60 [2020-08-22 22:58:44,614 WARN L193 SmtUtils]: Spent 923.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 55 [2020-08-22 22:58:47,325 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:48,290 WARN L193 SmtUtils]: Spent 952.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 22:58:49,285 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 223 DAG size of output: 56 [2020-08-22 22:58:51,978 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:58:52,974 WARN L193 SmtUtils]: Spent 978.00 ms on a formula simplification. DAG size of input: 224 DAG size of output: 58 [2020-08-22 22:58:54,202 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 252 DAG size of output: 63 [2020-08-22 22:58:55,462 WARN L193 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 252 DAG size of output: 63 [2020-08-22 22:58:58,020 WARN L193 SmtUtils]: Spent 2.55 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:58:58,825 WARN L193 SmtUtils]: Spent 802.00 ms on a formula simplification. DAG size of input: 177 DAG size of output: 51 [2020-08-22 22:58:59,937 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 22:59:01,043 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 22:59:01,983 WARN L193 SmtUtils]: Spent 927.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 22:59:04,638 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:59:05,708 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 22:59:08,320 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:59:09,405 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 22:59:10,366 WARN L193 SmtUtils]: Spent 950.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 22:59:12,762 WARN L193 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 22:59:15,113 WARN L193 SmtUtils]: Spent 2.34 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 22:59:16,084 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 22:59:18,447 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 22:59:20,851 WARN L193 SmtUtils]: Spent 2.39 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 22:59:23,467 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:59:24,346 WARN L193 SmtUtils]: Spent 837.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 60 [2020-08-22 22:59:25,472 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 22:59:26,316 WARN L193 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 60 [2020-08-22 22:59:28,953 WARN L193 SmtUtils]: Spent 2.62 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:59:29,928 WARN L193 SmtUtils]: Spent 964.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 22:59:32,536 WARN L193 SmtUtils]: Spent 2.59 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 22:59:33,812 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 224 DAG size of output: 62 [2020-08-22 22:59:35,409 WARN L193 SmtUtils]: Spent 1.59 s on a formula simplification. DAG size of input: 244 DAG size of output: 64 [2020-08-22 22:59:36,540 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 225 DAG size of output: 65 [2020-08-22 22:59:39,074 WARN L193 SmtUtils]: Spent 2.52 s on a formula simplification. DAG size of input: 387 DAG size of output: 83 [2020-08-22 22:59:40,070 WARN L193 SmtUtils]: Spent 984.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 50 [2020-08-22 22:59:41,244 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 229 DAG size of output: 61 [2020-08-22 22:59:42,414 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 222 DAG size of output: 54 [2020-08-22 22:59:45,228 WARN L193 SmtUtils]: Spent 2.80 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 22:59:46,152 WARN L193 SmtUtils]: Spent 913.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 55 [2020-08-22 22:59:47,275 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 226 DAG size of output: 54 [2020-08-22 22:59:49,018 WARN L193 SmtUtils]: Spent 1.73 s on a formula simplification. DAG size of input: 260 DAG size of output: 65 [2020-08-22 22:59:49,965 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 50 [2020-08-22 22:59:51,043 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 223 DAG size of output: 53 [2020-08-22 22:59:52,176 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 239 DAG size of output: 55 [2020-08-22 22:59:53,310 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 222 DAG size of output: 55 [2020-08-22 22:59:54,257 WARN L193 SmtUtils]: Spent 936.00 ms on a formula simplification. DAG size of input: 218 DAG size of output: 55 [2020-08-22 22:59:55,895 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 234 DAG size of output: 67 [2020-08-22 22:59:57,175 WARN L193 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-08-22 22:59:59,824 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:00:00,822 WARN L193 SmtUtils]: Spent 986.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 55 [2020-08-22 23:00:03,516 WARN L193 SmtUtils]: Spent 2.68 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:00:05,143 WARN L193 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 255 DAG size of output: 66 [2020-08-22 23:00:06,397 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 232 DAG size of output: 53 [2020-08-22 23:00:08,476 WARN L193 SmtUtils]: Spent 2.07 s on a formula simplification. DAG size of input: 294 DAG size of output: 79 [2020-08-22 23:00:09,508 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 216 DAG size of output: 51 [2020-08-22 23:00:10,753 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 222 DAG size of output: 55 [2020-08-22 23:00:11,619 WARN L193 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 54 [2020-08-22 23:00:13,059 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 230 DAG size of output: 71 [2020-08-22 23:00:14,649 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 225 DAG size of output: 83 [2020-08-22 23:00:15,836 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 220 DAG size of output: 57 [2020-08-22 23:00:16,973 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 58 [2020-08-22 23:00:19,592 WARN L193 SmtUtils]: Spent 2.61 s on a formula simplification. DAG size of input: 387 DAG size of output: 83 [2020-08-22 23:00:20,595 WARN L193 SmtUtils]: Spent 992.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 51 [2020-08-22 23:00:22,648 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 246 DAG size of output: 67 [2020-08-22 23:00:23,831 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 227 DAG size of output: 56 [2020-08-22 23:00:25,069 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 232 DAG size of output: 67 [2020-08-22 23:00:26,218 WARN L193 SmtUtils]: Spent 1.14 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 23:00:28,934 WARN L193 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:00:29,976 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 23:00:31,137 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 234 DAG size of output: 55 [2020-08-22 23:00:33,879 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:00:34,993 WARN L193 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 225 DAG size of output: 53 [2020-08-22 23:00:36,504 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 234 DAG size of output: 74 [2020-08-22 23:00:37,639 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 225 DAG size of output: 56 [2020-08-22 23:00:39,081 WARN L193 SmtUtils]: Spent 1.43 s on a formula simplification. DAG size of input: 225 DAG size of output: 56 [2020-08-22 23:00:41,819 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:00:44,729 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:00:46,559 WARN L193 SmtUtils]: Spent 1.82 s on a formula simplification. DAG size of input: 232 DAG size of output: 95 [2020-08-22 23:00:47,890 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 232 DAG size of output: 61 [2020-08-22 23:00:49,488 WARN L193 SmtUtils]: Spent 1.58 s on a formula simplification. DAG size of input: 263 DAG size of output: 61 [2020-08-22 23:00:50,815 WARN L193 SmtUtils]: Spent 1.32 s on a formula simplification. DAG size of input: 218 DAG size of output: 57 [2020-08-22 23:00:52,475 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 243 DAG size of output: 80 [2020-08-22 23:00:55,371 WARN L193 SmtUtils]: Spent 2.88 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:00:56,872 WARN L193 SmtUtils]: Spent 1.49 s on a formula simplification. DAG size of input: 245 DAG size of output: 55 [2020-08-22 23:00:58,639 WARN L193 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 230 DAG size of output: 71 [2020-08-22 23:01:00,166 WARN L193 SmtUtils]: Spent 1.52 s on a formula simplification. DAG size of input: 228 DAG size of output: 67 [2020-08-22 23:01:01,387 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 230 DAG size of output: 59 [2020-08-22 23:01:03,334 WARN L193 SmtUtils]: Spent 1.93 s on a formula simplification. DAG size of input: 245 DAG size of output: 95 [2020-08-22 23:01:04,395 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 218 DAG size of output: 51 [2020-08-22 23:01:07,324 WARN L193 SmtUtils]: Spent 2.92 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:01:10,233 WARN L193 SmtUtils]: Spent 2.90 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:01:12,111 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 243 DAG size of output: 69 [2020-08-22 23:01:13,932 WARN L193 SmtUtils]: Spent 1.81 s on a formula simplification. DAG size of input: 260 DAG size of output: 65 [2020-08-22 23:01:16,698 WARN L193 SmtUtils]: Spent 2.75 s on a formula simplification. DAG size of input: 316 DAG size of output: 65 [2020-08-22 23:01:19,568 WARN L193 SmtUtils]: Spent 2.86 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:01:20,613 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 220 DAG size of output: 56 [2020-08-22 23:01:21,749 WARN L193 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-08-22 23:01:22,768 WARN L193 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 218 DAG size of output: 52 [2020-08-22 23:01:25,688 WARN L193 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:01:27,098 WARN L193 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 232 DAG size of output: 61 [2020-08-22 23:01:28,299 WARN L193 SmtUtils]: Spent 1.19 s on a formula simplification. DAG size of input: 233 DAG size of output: 49 [2020-08-22 23:01:29,347 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 233 DAG size of output: 55 [2020-08-22 23:01:32,127 WARN L193 SmtUtils]: Spent 2.77 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:01:33,165 WARN L193 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 23:01:35,964 WARN L193 SmtUtils]: Spent 2.79 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:01:37,128 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 23:01:38,613 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 234 DAG size of output: 57 [2020-08-22 23:01:40,594 WARN L193 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 288 DAG size of output: 62 [2020-08-22 23:01:43,268 WARN L193 SmtUtils]: Spent 2.66 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:01:44,952 WARN L193 SmtUtils]: Spent 1.67 s on a formula simplification. DAG size of input: 243 DAG size of output: 80 [2020-08-22 23:01:47,363 WARN L193 SmtUtils]: Spent 2.40 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 23:01:49,727 WARN L193 SmtUtils]: Spent 2.35 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 23:01:50,584 WARN L193 SmtUtils]: Spent 847.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 60 [2020-08-22 23:01:51,574 WARN L193 SmtUtils]: Spent 979.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 23:01:52,539 WARN L193 SmtUtils]: Spent 954.00 ms on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 23:01:55,189 WARN L193 SmtUtils]: Spent 2.64 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:01:56,295 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 23:01:58,936 WARN L193 SmtUtils]: Spent 2.63 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:02:01,667 WARN L193 SmtUtils]: Spent 2.72 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:02:02,632 WARN L193 SmtUtils]: Spent 955.00 ms on a formula simplification. DAG size of input: 229 DAG size of output: 51 [2020-08-22 23:02:03,621 WARN L193 SmtUtils]: Spent 974.00 ms on a formula simplification. DAG size of input: 233 DAG size of output: 55 [2020-08-22 23:02:05,327 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 243 DAG size of output: 61 [2020-08-22 23:02:07,032 WARN L193 SmtUtils]: Spent 1.69 s on a formula simplification. DAG size of input: 250 DAG size of output: 84 [2020-08-22 23:02:08,409 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 217 DAG size of output: 54 [2020-08-22 23:02:10,176 WARN L193 SmtUtils]: Spent 1.75 s on a formula simplification. DAG size of input: 260 DAG size of output: 65 [2020-08-22 23:02:11,546 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 228 DAG size of output: 83 [2020-08-22 23:02:12,685 WARN L193 SmtUtils]: Spent 1.11 s on a formula simplification. DAG size of input: 242 DAG size of output: 56 [2020-08-22 23:02:15,483 WARN L193 SmtUtils]: Spent 2.78 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:02:16,870 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 239 DAG size of output: 56 [2020-08-22 23:02:17,950 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 235 DAG size of output: 55 [2020-08-22 23:02:19,094 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 218 DAG size of output: 56 [2020-08-22 23:02:20,173 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 217 DAG size of output: 54 [2020-08-22 23:02:21,315 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 228 DAG size of output: 54 [2020-08-22 23:02:22,379 WARN L193 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 224 DAG size of output: 66 [2020-08-22 23:02:23,341 WARN L193 SmtUtils]: Spent 953.00 ms on a formula simplification. DAG size of input: 213 DAG size of output: 53 [2020-08-22 23:02:26,089 WARN L193 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:02:27,012 WARN L193 SmtUtils]: Spent 911.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 50 [2020-08-22 23:02:29,629 WARN L193 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 387 DAG size of output: 83 [2020-08-22 23:02:30,569 WARN L193 SmtUtils]: Spent 928.00 ms on a formula simplification. DAG size of input: 219 DAG size of output: 50 [2020-08-22 23:02:31,816 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 222 DAG size of output: 54 [2020-08-22 23:02:32,893 WARN L193 SmtUtils]: Spent 1.07 s on a formula simplification. DAG size of input: 231 DAG size of output: 49 [2020-08-22 23:02:34,289 WARN L193 SmtUtils]: Spent 1.38 s on a formula simplification. DAG size of input: 237 DAG size of output: 60 [2020-08-22 23:02:37,250 WARN L193 SmtUtils]: Spent 2.94 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:02:38,320 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 218 DAG size of output: 53 [2020-08-22 23:02:39,699 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 219 DAG size of output: 71 [2020-08-22 23:02:40,706 WARN L193 SmtUtils]: Spent 996.00 ms on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 23:02:41,675 WARN L193 SmtUtils]: Spent 960.00 ms on a formula simplification. DAG size of input: 217 DAG size of output: 54 [2020-08-22 23:02:43,575 WARN L193 SmtUtils]: Spent 1.89 s on a formula simplification. DAG size of input: 243 DAG size of output: 69 [2020-08-22 23:02:44,639 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 220 DAG size of output: 53 [2020-08-22 23:02:45,797 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 218 DAG size of output: 56 [2020-08-22 23:02:46,896 WARN L193 SmtUtils]: Spent 1.09 s on a formula simplification. DAG size of input: 223 DAG size of output: 56 [2020-08-22 23:02:48,091 WARN L193 SmtUtils]: Spent 1.18 s on a formula simplification. DAG size of input: 233 DAG size of output: 49 [2020-08-22 23:02:49,971 WARN L193 SmtUtils]: Spent 1.87 s on a formula simplification. DAG size of input: 232 DAG size of output: 75 [2020-08-22 23:02:51,041 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 23:02:52,422 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 228 DAG size of output: 72 [2020-08-22 23:02:53,688 WARN L193 SmtUtils]: Spent 1.26 s on a formula simplification. DAG size of input: 245 DAG size of output: 58 [2020-08-22 23:02:56,710 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:02:59,735 WARN L193 SmtUtils]: Spent 3.01 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:03:01,654 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 226 DAG size of output: 79 [2020-08-22 23:03:03,388 WARN L193 SmtUtils]: Spent 1.72 s on a formula simplification. DAG size of input: 266 DAG size of output: 70 [2020-08-22 23:03:04,423 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 215 DAG size of output: 52 [2020-08-22 23:03:05,658 WARN L193 SmtUtils]: Spent 1.22 s on a formula simplification. DAG size of input: 245 DAG size of output: 58 [2020-08-22 23:03:06,650 WARN L193 SmtUtils]: Spent 982.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 55 [2020-08-22 23:03:07,888 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 225 DAG size of output: 57 [2020-08-22 23:03:10,939 WARN L193 SmtUtils]: Spent 3.04 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:03:12,104 WARN L193 SmtUtils]: Spent 1.16 s on a formula simplification. DAG size of input: 219 DAG size of output: 56 [2020-08-22 23:03:15,009 WARN L193 SmtUtils]: Spent 2.89 s on a formula simplification. DAG size of input: 387 DAG size of output: 83 [2020-08-22 23:03:16,297 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 237 DAG size of output: 54 [2020-08-22 23:03:17,307 WARN L193 SmtUtils]: Spent 999.00 ms on a formula simplification. DAG size of input: 215 DAG size of output: 47 [2020-08-22 23:03:18,562 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 245 DAG size of output: 58 [2020-08-22 23:03:19,880 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 217 DAG size of output: 55 [2020-08-22 23:03:21,020 WARN L193 SmtUtils]: Spent 1.13 s on a formula simplification. DAG size of input: 216 DAG size of output: 51 [2020-08-22 23:03:22,256 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 225 DAG size of output: 65 [2020-08-22 23:03:23,432 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 220 DAG size of output: 53 [2020-08-22 23:03:25,379 WARN L193 SmtUtils]: Spent 1.94 s on a formula simplification. DAG size of input: 243 DAG size of output: 61 [2020-08-22 23:03:26,534 WARN L193 SmtUtils]: Spent 1.15 s on a formula simplification. DAG size of input: 226 DAG size of output: 59 [2020-08-22 23:03:28,401 WARN L193 SmtUtils]: Spent 1.86 s on a formula simplification. DAG size of input: 244 DAG size of output: 64 [2020-08-22 23:03:29,770 WARN L193 SmtUtils]: Spent 1.36 s on a formula simplification. DAG size of input: 226 DAG size of output: 58 [2020-08-22 23:03:32,944 WARN L193 SmtUtils]: Spent 3.16 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:03:34,870 WARN L193 SmtUtils]: Spent 1.91 s on a formula simplification. DAG size of input: 234 DAG size of output: 67 [2020-08-22 23:03:38,074 WARN L193 SmtUtils]: Spent 3.19 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:03:41,291 WARN L193 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:03:42,800 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 228 DAG size of output: 62 [2020-08-22 23:03:44,159 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 233 DAG size of output: 60 [2020-08-22 23:03:47,485 WARN L193 SmtUtils]: Spent 3.31 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:03:49,142 WARN L193 SmtUtils]: Spent 1.65 s on a formula simplification. DAG size of input: 239 DAG size of output: 56 [2020-08-22 23:03:50,651 WARN L193 SmtUtils]: Spent 1.50 s on a formula simplification. DAG size of input: 230 DAG size of output: 71 [2020-08-22 23:03:54,116 WARN L193 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:03:57,175 WARN L193 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 298 DAG size of output: 83 [2020-08-22 23:03:58,783 WARN L193 SmtUtils]: Spent 1.60 s on a formula simplification. DAG size of input: 220 DAG size of output: 68 [2020-08-22 23:03:59,963 WARN L193 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 218 DAG size of output: 57 [2020-08-22 23:04:03,400 WARN L193 SmtUtils]: Spent 3.41 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:04:04,620 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 216 DAG size of output: 53 [2020-08-22 23:04:05,591 WARN L193 SmtUtils]: Spent 961.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 39 [2020-08-22 23:04:07,639 WARN L193 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 244 DAG size of output: 64 [2020-08-22 23:04:11,138 WARN L193 SmtUtils]: Spent 3.48 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:04:12,566 WARN L193 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 233 DAG size of output: 49 [2020-08-22 23:04:13,855 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 222 DAG size of output: 53 [2020-08-22 23:04:15,156 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 221 DAG size of output: 56 [2020-08-22 23:04:16,934 WARN L193 SmtUtils]: Spent 1.77 s on a formula simplification. DAG size of input: 230 DAG size of output: 71 [2020-08-22 23:04:18,579 WARN L193 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 248 DAG size of output: 57 [2020-08-22 23:04:19,898 WARN L193 SmtUtils]: Spent 1.31 s on a formula simplification. DAG size of input: 228 DAG size of output: 58 [2020-08-22 23:04:21,259 WARN L193 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 233 DAG size of output: 57 [2020-08-22 23:04:24,862 WARN L193 SmtUtils]: Spent 3.59 s on a formula simplification. DAG size of input: 389 DAG size of output: 78 [2020-08-22 23:04:26,345 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 23:04:29,864 WARN L193 SmtUtils]: Spent 3.51 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:04:33,415 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:04:34,661 WARN L193 SmtUtils]: Spent 1.24 s on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 23:04:35,723 WARN L193 SmtUtils]: Spent 1.06 s on a formula simplification. DAG size of input: 177 DAG size of output: 51 [2020-08-22 23:04:37,200 WARN L193 SmtUtils]: Spent 1.47 s on a formula simplification. DAG size of input: 233 DAG size of output: 57 [2020-08-22 23:04:41,000 WARN L193 SmtUtils]: Spent 3.79 s on a formula simplification. DAG size of input: 375 DAG size of output: 69 [2020-08-22 23:04:42,033 WARN L193 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 219 DAG size of output: 60 [2020-08-22 23:04:43,253 WARN L193 SmtUtils]: Spent 1.21 s on a formula simplification. DAG size of input: 229 DAG size of output: 51 [2020-08-22 23:04:44,636 WARN L193 SmtUtils]: Spent 1.37 s on a formula simplification. DAG size of input: 219 DAG size of output: 53 [2020-08-22 23:04:46,433 WARN L193 SmtUtils]: Spent 1.79 s on a formula simplification. DAG size of input: 226 DAG size of output: 59 [2020-08-22 23:04:47,676 WARN L193 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 219 DAG size of output: 50 [2020-08-22 23:04:49,885 WARN L193 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 229 DAG size of output: 92 [2020-08-22 23:04:53,323 WARN L193 SmtUtils]: Spent 3.43 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 23:04:56,880 WARN L193 SmtUtils]: Spent 3.54 s on a formula simplification. DAG size of input: 382 DAG size of output: 59 [2020-08-22 23:04:58,418 WARN L193 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 221 DAG size of output: 50 [2020-08-22 23:04:59,711 WARN L193 SmtUtils]: Spent 1.28 s on a formula simplification. DAG size of input: 221 DAG size of output: 52 [2020-08-22 23:05:01,015 WARN L193 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 221 DAG size of output: 52